Example usage for java.util ArrayList get

List of usage examples for java.util ArrayList get

Introduction

In this page you can find the example usage for java.util ArrayList get.

Prototype

public E get(int index) 

Source Link

Document

Returns the element at the specified position in this list.

Usage

From source file:ch.epfl.lsir.xin.test.SVDPPTest.java

/**
 * @param args//from w ww . j av a  2s  .c  o  m
 */
public static void main(String[] args) throws Exception {
    // TODO Auto-generated method stub

    PrintWriter logger = new PrintWriter(".//results//SVDPP");

    PropertiesConfiguration config = new PropertiesConfiguration();
    config.setFile(new File("conf//SVDPlusPlus.properties"));
    try {
        config.load();
    } catch (ConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Read rating data...");
    logger.flush();
    DataLoaderFile loader = new DataLoaderFile(".//data//MoveLens100k.txt");
    loader.readSimple();
    DataSetNumeric dataset = loader.getDataset();
    System.out.println("Number of ratings: " + dataset.getRatings().size() + " Number of users: "
            + dataset.getUserIDs().size() + " Number of items: " + dataset.getItemIDs().size());
    logger.println("Number of ratings: " + dataset.getRatings().size() + ", Number of users: "
            + dataset.getUserIDs().size() + ", Number of items: " + dataset.getItemIDs().size());
    logger.flush();

    double totalMAE = 0;
    double totalRMSE = 0;
    double totalPrecision = 0;
    double totalRecall = 0;
    double totalMAP = 0;
    double totalNDCG = 0;
    double totalMRR = 0;
    double totalAUC = 0;
    int F = 5;
    logger.println(F + "- folder cross validation.");
    logger.flush();
    ArrayList<ArrayList<NumericRating>> folders = new ArrayList<ArrayList<NumericRating>>();
    for (int i = 0; i < F; i++) {
        folders.add(new ArrayList<NumericRating>());
    }
    while (dataset.getRatings().size() > 0) {
        int index = new Random().nextInt(dataset.getRatings().size());
        int r = new Random().nextInt(F);
        folders.get(r).add(dataset.getRatings().get(index));
        dataset.getRatings().remove(index);
    }

    for (int folder = 1; folder <= F; folder++) {
        System.out.println("Folder: " + folder);
        logger.println("Folder: " + folder);
        logger.flush();
        ArrayList<NumericRating> trainRatings = new ArrayList<NumericRating>();
        ArrayList<NumericRating> testRatings = new ArrayList<NumericRating>();
        for (int i = 0; i < folders.size(); i++) {
            if (i == folder - 1)//test data
            {
                testRatings.addAll(folders.get(i));
            } else {//training data
                trainRatings.addAll(folders.get(i));
            }
        }

        //create rating matrix
        HashMap<String, Integer> userIDIndexMapping = new HashMap<String, Integer>();
        HashMap<String, Integer> itemIDIndexMapping = new HashMap<String, Integer>();
        for (int i = 0; i < dataset.getUserIDs().size(); i++) {
            userIDIndexMapping.put(dataset.getUserIDs().get(i), i);
        }
        for (int i = 0; i < dataset.getItemIDs().size(); i++) {
            itemIDIndexMapping.put(dataset.getItemIDs().get(i), i);
        }
        RatingMatrix trainRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < trainRatings.size(); i++) {
            trainRatingMatrix.set(userIDIndexMapping.get(trainRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(trainRatings.get(i).getItemID()), trainRatings.get(i).getValue());
        }
        RatingMatrix testRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < testRatings.size(); i++) {
            if (testRatings.get(i).getValue() < 5)
                continue;
            testRatingMatrix.set(userIDIndexMapping.get(testRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(testRatings.get(i).getItemID()), testRatings.get(i).getValue());
        }
        System.out.println("Training: " + trainRatingMatrix.getTotalRatingNumber() + " vs Test: "
                + testRatingMatrix.getTotalRatingNumber());

        logger.println("Initialize a SVD++ recommendation model.");
        logger.flush();
        SVDPlusPlus algo = new SVDPlusPlus(trainRatingMatrix, false,
                ".//localModels//" + config.getString("NAME"));
        algo.setLogger(logger);
        algo.build();
        algo.saveModel(".//localModels//" + config.getString("NAME"));
        logger.println("Save the model.");
        logger.flush();

        //rating prediction accuracy
        double RMSE = 0;
        double MAE = 0;
        double precision = 0;
        double recall = 0;
        double map = 0;
        double ndcg = 0;
        double mrr = 0;
        double auc = 0;
        int count = 0;
        for (int i = 0; i < testRatings.size(); i++) {
            NumericRating rating = testRatings.get(i);
            double prediction = algo.predict(userIDIndexMapping.get(rating.getUserID()),
                    itemIDIndexMapping.get(rating.getItemID()), false);
            if (prediction > algo.getMaxRating())
                prediction = algo.getMaxRating();
            if (prediction < algo.getMinRating())
                prediction = algo.getMinRating();
            if (Double.isNaN(prediction)) {
                System.out.println("no prediction");
                continue;
            }
            MAE = MAE + Math.abs(rating.getValue() - prediction);
            RMSE = RMSE + Math.pow((rating.getValue() - prediction), 2);
            count++;
        }
        MAE = MAE / count;
        RMSE = Math.sqrt(RMSE / count);
        totalMAE = totalMAE + MAE;
        totalRMSE = totalRMSE + RMSE;
        System.out.println("Folder --- MAE: " + MAE + " RMSE: " + RMSE);
        logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Folder --- MAE: "
                + MAE + " RMSE: " + RMSE);
        //ranking accuracy
        if (algo.getTopN() > 0) {
            HashMap<Integer, ArrayList<ResultUnit>> results = new HashMap<Integer, ArrayList<ResultUnit>>();
            for (int i = 0; i < trainRatingMatrix.getRow(); i++) {
                ArrayList<ResultUnit> rec = algo.getRecommendationList(i);
                if (rec == null)
                    continue;
                int total = testRatingMatrix.getUserRatingNumber(i);
                if (total == 0)//this user is ignored
                    continue;
                results.put(i, rec);
            }
            RankResultGenerator generator = new RankResultGenerator(results, algo.getTopN(), testRatingMatrix);
            precision = generator.getPrecisionN();
            totalPrecision = totalPrecision + precision;
            recall = generator.getRecallN();
            totalRecall = totalRecall + recall;
            map = generator.getMAPN();
            totalMAP = totalMAP + map;
            ndcg = generator.getNDCGN();
            totalNDCG = totalNDCG + ndcg;
            mrr = generator.getMRRN();
            totalMRR = totalMRR + mrr;
            auc = generator.getAUC();
            totalAUC = totalAUC + auc;
            System.out.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
            logger.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
        }

        logger.flush();
    }

    System.out.println("MAE: " + totalMAE / F + " RMSE: " + totalRMSE / F);
    System.out.println("Precision@N: " + totalPrecision / F);
    System.out.println("Recall@N: " + totalRecall / F);
    System.out.println("MAP@N: " + totalMAP / F);
    System.out.println("MRR@N: " + totalMRR / F);
    System.out.println("NDCG@N: " + totalNDCG / F);
    System.out.println("AUC@N: " + totalAUC / F);

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "\n" + "MAE: "
            + totalMAE / F + " RMSE: " + totalRMSE / F + "\n" + "Precision@N: " + totalPrecision / F + "\n"
            + "Recall@N: " + totalRecall / F + "\n" + "MAP@N: " + totalMAP / F + "\n" + "MRR@N: " + totalMRR / F
            + "\n" + "NDCG@N: " + totalNDCG / F + "\n" + "AUC@N: " + totalAUC / F);
    logger.flush();
    logger.close();
}

From source file:ch.epfl.lsir.xin.test.SocialRegTest.java

/**
 * @param args/*from ww w. jav a  2s  .c  o  m*/
 */
public static void main(String[] args) throws Exception {
    // TODO Auto-generated method stub

    PrintWriter logger = new PrintWriter(".//results//SocialReg");
    PropertiesConfiguration config = new PropertiesConfiguration();
    config.setFile(new File("conf//SocialReg.properties"));
    try {
        config.load();
    } catch (ConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Read rating data...");
    logger.flush();
    DataLoaderFile loader = new DataLoaderFile(".//data//Epinions-ratings.txt");
    loader.readSimple();
    //read social information
    loader.readRelation(".//data//Epinions-trust.txt");
    DataSetNumeric dataset = loader.getDataset();
    System.out.println("Number of ratings: " + dataset.getRatings().size() + " Number of users: "
            + dataset.getUserIDs().size() + " Number of items: " + dataset.getItemIDs().size());
    logger.println("Number of ratings: " + dataset.getRatings().size() + ", Number of users: "
            + dataset.getUserIDs().size() + ", Number of items: " + dataset.getItemIDs().size());
    logger.flush();

    double totalMAE = 0;
    double totalRMSE = 0;
    double totalPrecision = 0;
    double totalRecall = 0;
    double totalMAP = 0;
    double totalNDCG = 0;
    double totalMRR = 0;
    double totalAUC = 0;
    int F = 5;
    logger.println(F + "- folder cross validation.");
    logger.flush();
    ArrayList<ArrayList<NumericRating>> folders = new ArrayList<ArrayList<NumericRating>>();
    for (int i = 0; i < F; i++) {
        folders.add(new ArrayList<NumericRating>());
    }
    while (dataset.getRatings().size() > 0) {
        int index = new Random().nextInt(dataset.getRatings().size());
        int r = new Random().nextInt(F);
        folders.get(r).add(dataset.getRatings().get(index));
        dataset.getRatings().remove(index);
    }

    for (int folder = 1; folder <= F; folder++) {
        System.out.println("Folder: " + folder);
        logger.println("Folder: " + folder);
        logger.flush();
        ArrayList<NumericRating> trainRatings = new ArrayList<NumericRating>();
        ArrayList<NumericRating> testRatings = new ArrayList<NumericRating>();
        for (int i = 0; i < folders.size(); i++) {
            if (i == folder - 1)//test data
            {
                testRatings.addAll(folders.get(i));
            } else {//training data
                trainRatings.addAll(folders.get(i));
            }
        }

        //create rating matrix
        HashMap<String, Integer> userIDIndexMapping = dataset.getUserIDMapping();
        HashMap<String, Integer> itemIDIndexMapping = dataset.getItemIDMapping();
        //         for( int i = 0 ; i < dataset.getUserIDs().size() ; i++ )
        //         {
        //            userIDIndexMapping.put(dataset.getUserIDs().get(i), i);
        //         }
        //         for( int i = 0 ; i < dataset.getItemIDs().size() ; i++ )
        //         {
        //            itemIDIndexMapping.put(dataset.getItemIDs().get(i) , i);
        //         }
        RatingMatrix trainRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < trainRatings.size(); i++) {
            trainRatingMatrix.set(userIDIndexMapping.get(trainRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(trainRatings.get(i).getItemID()), trainRatings.get(i).getValue());
        }
        RatingMatrix testRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < testRatings.size(); i++) {
            testRatingMatrix.set(userIDIndexMapping.get(testRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(testRatings.get(i).getItemID()), testRatings.get(i).getValue());
        }
        System.out.println("Training: " + trainRatingMatrix.getTotalRatingNumber() + " vs Test: "
                + testRatingMatrix.getTotalRatingNumber());

        logger.println("Initialize a social regularization recommendation model.");
        logger.flush();
        SocialReg algo = new SocialReg(trainRatingMatrix, dataset.getRelationships(), false,
                ".//localModels//" + config.getString("NAME"));
        algo.setLogger(logger);
        algo.build();
        algo.saveModel(".//localModels//" + config.getString("NAME"));
        logger.println("Save the model.");
        logger.flush();

        System.out.println(trainRatings.size() + " vs. " + testRatings.size());

        //rating prediction accuracy
        double RMSE = 0;
        double MAE = 0;
        double precision = 0;
        double recall = 0;
        double map = 0;
        double ndcg = 0;
        double mrr = 0;
        double auc = 0;
        int count = 0;
        for (int i = 0; i < testRatings.size(); i++) {
            NumericRating rating = testRatings.get(i);
            double prediction = algo.predict(userIDIndexMapping.get(rating.getUserID()),
                    itemIDIndexMapping.get(rating.getItemID()));
            if (prediction > algo.getMaxRating())
                prediction = algo.getMaxRating();
            if (prediction < algo.getMinRating())
                prediction = algo.getMinRating();
            if (Double.isNaN(prediction)) {
                System.out.println("no prediction");
                continue;
            }
            MAE = MAE + Math.abs(rating.getValue() - prediction);
            RMSE = RMSE + Math.pow((rating.getValue() - prediction), 2);
            count++;
        }
        MAE = MAE / count;
        RMSE = Math.sqrt(RMSE / count);
        totalMAE = totalMAE + MAE;
        totalRMSE = totalRMSE + RMSE;
        System.out.println("Folder --- MAE: " + MAE + " RMSE: " + RMSE);
        logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Folder --- MAE: "
                + MAE + " RMSE: " + RMSE);
        //ranking accuracy
        //         if( algo.getTopN() > 0 )
        //         {
        //            HashMap<Integer , ArrayList<ResultUnit>> results = new HashMap<Integer , ArrayList<ResultUnit>>();
        //            for( int i = 0 ; i < trainRatingMatrix.getRow() ; i++ )
        //            {
        //               ArrayList<ResultUnit> rec = algo.getRecommendationList(i);
        //               results.put(i, rec);
        //            }
        //            RankResultGenerator generator = new RankResultGenerator(results , algo.getTopN() , testRatingMatrix);
        //            precision = generator.getPrecisionN();
        //            totalPrecision = totalPrecision + precision;
        //            recall = generator.getRecallN();
        //            totalRecall = totalRecall + recall;
        //            map = generator.getMAPN();
        //            totalMAP = totalMAP + map;
        //            ndcg = generator.getNDCGN();
        //            totalNDCG = totalNDCG + ndcg;
        //            mrr = generator.getMRRN();
        //            totalMRR = totalMRR + mrr;
        //            auc = generator.getAUC();
        //            totalAUC = totalAUC + auc;
        //            System.out.println("Folder --- precision: " + precision + " recall: " + 
        //            recall + " map: " + map + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
        //            logger.println("Folder --- precision: " + precision + " recall: " + 
        //                  recall + " map: " + map + " ndcg: " + ndcg + " mrr: " + 
        //                  mrr + " auc: " + auc);
        //         }

        logger.flush();
    }

    System.out.println("MAE: " + totalMAE / F + " RMSE: " + totalRMSE / F);
    System.out.println("Precision@N: " + totalPrecision / F);
    System.out.println("Recall@N: " + totalRecall / F);
    System.out.println("MAP@N: " + totalMAP / F);
    System.out.println("MRR@N: " + totalMRR / F);
    System.out.println("NDCG@N: " + totalNDCG / F);
    System.out.println("AUC@N: " + totalAUC / F);

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "\n" + "MAE: "
            + totalMAE / F + " RMSE: " + totalRMSE / F + "\n" + "Precision@N: " + totalPrecision / F + "\n"
            + "Recall@N: " + totalRecall / F + "\n" + "MAP@N: " + totalMAP / F + "\n" + "MRR@N: " + totalMRR / F
            + "\n" + "NDCG@N: " + totalNDCG / F + "\n" + "AUC@N: " + totalAUC / F);
    logger.flush();
    logger.close();
}

From source file:ch.epfl.lsir.xin.test.ItemBasedCFTest.java

/**
 * @param args//from w  ww  . j a va2s  .  c  om
 */
public static void main(String[] args) throws Exception {
    // TODO Auto-generated method stub

    PrintWriter logger = new PrintWriter(".//results//ItemBasedCF");
    PropertiesConfiguration config = new PropertiesConfiguration();
    config.setFile(new File(".//conf//ItemBasedCF.properties"));
    try {
        config.load();
    } catch (ConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Read rating data...");
    DataLoaderFile loader = new DataLoaderFile(".//data//MoveLens100k.txt");
    loader.readSimple();
    DataSetNumeric dataset = loader.getDataset();
    System.out.println("Number of ratings: " + dataset.getRatings().size() + " Number of users: "
            + dataset.getUserIDs().size() + " Number of items: " + dataset.getItemIDs().size());
    logger.println("Number of ratings: " + dataset.getRatings().size() + ", Number of users: "
            + dataset.getUserIDs().size() + ", Number of items: " + dataset.getItemIDs().size());
    logger.flush();

    double totalMAE = 0;
    double totalRMSE = 0;
    double totalPrecision = 0;
    double totalRecall = 0;
    double totalMAP = 0;
    double totalNDCG = 0;
    double totalMRR = 0;
    double totalAUC = 0;
    int F = 5;
    logger.println(F + "- folder cross validation.");
    ArrayList<ArrayList<NumericRating>> folders = new ArrayList<ArrayList<NumericRating>>();
    for (int i = 0; i < F; i++) {
        folders.add(new ArrayList<NumericRating>());
    }

    while (dataset.getRatings().size() > 0) {
        int index = new Random().nextInt(dataset.getRatings().size());
        int r = new Random().nextInt(F);
        folders.get(r).add(dataset.getRatings().get(index));
        dataset.getRatings().remove(index);
    }

    for (int folder = 1; folder <= F; folder++) {
        logger.println("Folder: " + folder);
        System.out.println("Folder: " + folder);
        ArrayList<NumericRating> trainRatings = new ArrayList<NumericRating>();
        ArrayList<NumericRating> testRatings = new ArrayList<NumericRating>();
        for (int i = 0; i < folders.size(); i++) {
            if (i == folder - 1)//test data
            {
                testRatings.addAll(folders.get(i));
            } else {//training data
                trainRatings.addAll(folders.get(i));
            }
        }

        //create rating matrix
        HashMap<String, Integer> userIDIndexMapping = new HashMap<String, Integer>();
        HashMap<String, Integer> itemIDIndexMapping = new HashMap<String, Integer>();
        for (int i = 0; i < dataset.getUserIDs().size(); i++) {
            userIDIndexMapping.put(dataset.getUserIDs().get(i), i);
        }
        for (int i = 0; i < dataset.getItemIDs().size(); i++) {
            itemIDIndexMapping.put(dataset.getItemIDs().get(i), i);
        }
        RatingMatrix trainRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < trainRatings.size(); i++) {
            trainRatingMatrix.set(userIDIndexMapping.get(trainRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(trainRatings.get(i).getItemID()), trainRatings.get(i).getValue());
        }
        trainRatingMatrix.calculateGlobalAverage();
        trainRatingMatrix.calculateItemsMean();
        RatingMatrix testRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < testRatings.size(); i++) {
            testRatingMatrix.set(userIDIndexMapping.get(testRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(testRatings.get(i).getItemID()), testRatings.get(i).getValue());
        }
        System.out.println("Training: " + trainRatingMatrix.getTotalRatingNumber() + " vs Test: "
                + testRatingMatrix.getTotalRatingNumber());
        logger.println("Initialize a item based collaborative filtering recommendation model.");
        ItemBasedCF algo = new ItemBasedCF(trainRatingMatrix);
        algo.setLogger(logger);
        algo.build();//if read local model, no need to build the model
        algo.saveModel(".//localModels//" + config.getString("NAME"));
        logger.println("Save the model.");
        logger.flush();

        //rating prediction accuracy
        double RMSE = 0;
        double MAE = 0;
        double precision = 0;
        double recall = 0;
        double map = 0;
        double ndcg = 0;
        double mrr = 0;
        double auc = 0;
        int count = 0;
        for (int i = 0; i < testRatings.size(); i++) {
            NumericRating rating = testRatings.get(i);
            double prediction = algo.predict(userIDIndexMapping.get(rating.getUserID()),
                    itemIDIndexMapping.get(rating.getItemID()), false);
            if (prediction > algo.getMaxRating())
                prediction = algo.getMaxRating();
            if (prediction < algo.getMinRating())
                prediction = algo.getMinRating();

            if (Double.isNaN(prediction)) {
                System.out.println("no prediction");
                continue;
            }
            MAE = MAE + Math.abs(rating.getValue() - prediction);
            RMSE = RMSE + Math.pow((rating.getValue() - prediction), 2);
            count++;
        }
        MAE = MAE / count;
        RMSE = Math.sqrt(RMSE / count);
        totalMAE = totalMAE + MAE;
        totalRMSE = totalRMSE + RMSE;
        System.out.println("Folder --- MAE: " + MAE + " RMSE: " + RMSE);
        logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Folder --- MAE: "
                + MAE + " RMSE: " + RMSE);

        //ranking accuracy
        if (algo.getTopN() > 0) {
            HashMap<Integer, ArrayList<ResultUnit>> results = new HashMap<Integer, ArrayList<ResultUnit>>();
            for (int i = 0; i < trainRatingMatrix.getRow(); i++) {
                //               ArrayList<ResultUnit> rec = algo.getRecommendationList(i);
                //               results.put(i, rec);
                ArrayList<ResultUnit> rec = algo.getRecommendationList(i);
                if (rec == null)
                    continue;
                int total = testRatingMatrix.getUserRatingNumber(i);
                if (total == 0)//this user is ignored
                    continue;
                results.put(i, rec);
            }
            RankResultGenerator generator = new RankResultGenerator(results, algo.getTopN(), testRatingMatrix,
                    trainRatingMatrix);
            precision = generator.getPrecisionN();
            totalPrecision = totalPrecision + precision;
            recall = generator.getRecallN();
            totalRecall = totalRecall + recall;
            map = generator.getMAPN();
            totalMAP = totalMAP + map;
            ndcg = generator.getNDCGN();
            totalNDCG = totalNDCG + ndcg;
            mrr = generator.getMRRN();
            totalMRR = totalMRR + mrr;
            auc = generator.getAUC();
            totalAUC = totalAUC + auc;
            System.out.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
            logger.append("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc + "\n");
        }
    }

    System.out.println("MAE: " + totalMAE / F + " RMSE: " + totalRMSE / F);
    System.out.println("Precision@N: " + totalPrecision / F);
    System.out.println("Recall@N: " + totalRecall / F);
    System.out.println("MAP@N: " + totalMAP / F);
    System.out.println("MRR@N: " + totalMRR / F);
    System.out.println("NDCG@N: " + totalNDCG / F);
    System.out.println("AUC@N: " + totalAUC / F);
    System.out.println("similarity: " + config.getString("SIMILARITY"));
    //MAE: 0.7227232762922241 RMSE: 0.9225576790122603 (MovieLens 100K, shrinkage 2500, neighbor size 40, PCC)
    //MAE: 0.7250636319353241 RMSE: 0.9242305485411567 (MovieLens 100K, shrinkage 25, neighbor size 40, PCC)
    //MAE: 0.7477213243604459 RMSE: 0.9512195004171138 (MovieLens 100K, shrinkage 2500, neighbor size 40, COSINE)

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "\n" + "MAE: "
            + totalMAE / F + " RMSE: " + totalRMSE / F + "\n" + "Precision@N: " + totalPrecision / F + "\n"
            + "Recall@N: " + totalRecall / F + "\n" + "MAP@N: " + totalMAP / F + "\n" + "MRR@N: " + totalMRR / F
            + "\n" + "NDCG@N: " + totalNDCG / F + "\n" + "AUC@N: " + totalAUC / F);
    logger.flush();
    logger.close();
}

From source file:ch.epfl.lsir.xin.test.BiasedMFTest.java

/**
 * @param args//from  w ww  .j  a v  a 2s.com
 */
public static void main(String[] args) throws Exception {
    // TODO Auto-generated method stub

    PrintWriter logger = new PrintWriter(".//results//BiasedMF");

    PropertiesConfiguration config = new PropertiesConfiguration();
    config.setFile(new File("conf//biasedMF.properties"));
    try {
        config.load();
    } catch (ConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Read rating data...");
    logger.flush();
    DataLoaderFile loader = new DataLoaderFile(".//data//MoveLens100k.txt");
    loader.readSimple();
    DataSetNumeric dataset = loader.getDataset();
    System.out.println("Number of ratings: " + dataset.getRatings().size() + " Number of users: "
            + dataset.getUserIDs().size() + " Number of items: " + dataset.getItemIDs().size());
    logger.println("Number of ratings: " + dataset.getRatings().size() + ", Number of users: "
            + dataset.getUserIDs().size() + ", Number of items: " + dataset.getItemIDs().size());
    logger.flush();

    double totalMAE = 0;
    double totalRMSE = 0;
    double totalPrecision = 0;
    double totalRecall = 0;
    double totalMAP = 0;
    double totalNDCG = 0;
    double totalMRR = 0;
    double totalAUC = 0;
    int F = 5;
    logger.println(F + "- folder cross validation.");
    logger.flush();
    ArrayList<ArrayList<NumericRating>> folders = new ArrayList<ArrayList<NumericRating>>();
    for (int i = 0; i < F; i++) {
        folders.add(new ArrayList<NumericRating>());
    }
    while (dataset.getRatings().size() > 0) {
        int index = new Random().nextInt(dataset.getRatings().size());
        int r = new Random().nextInt(F);
        folders.get(r).add(dataset.getRatings().get(index));
        dataset.getRatings().remove(index);
    }

    for (int folder = 1; folder <= F; folder++) {
        System.out.println("Folder: " + folder);
        logger.println("Folder: " + folder);
        logger.flush();
        ArrayList<NumericRating> trainRatings = new ArrayList<NumericRating>();
        ArrayList<NumericRating> testRatings = new ArrayList<NumericRating>();
        for (int i = 0; i < folders.size(); i++) {
            if (i == folder - 1)//test data
            {
                testRatings.addAll(folders.get(i));
            } else {//training data
                trainRatings.addAll(folders.get(i));
            }
        }

        //create rating matrix
        HashMap<String, Integer> userIDIndexMapping = new HashMap<String, Integer>();
        HashMap<String, Integer> itemIDIndexMapping = new HashMap<String, Integer>();
        for (int i = 0; i < dataset.getUserIDs().size(); i++) {
            userIDIndexMapping.put(dataset.getUserIDs().get(i), i);
        }
        for (int i = 0; i < dataset.getItemIDs().size(); i++) {
            itemIDIndexMapping.put(dataset.getItemIDs().get(i), i);
        }
        RatingMatrix trainRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < trainRatings.size(); i++) {
            trainRatingMatrix.set(userIDIndexMapping.get(trainRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(trainRatings.get(i).getItemID()), trainRatings.get(i).getValue());
        }
        RatingMatrix testRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < testRatings.size(); i++) {
            //            if( testRatings.get(i).getValue() < 5 )
            //               continue;
            testRatingMatrix.set(userIDIndexMapping.get(testRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(testRatings.get(i).getItemID()), testRatings.get(i).getValue());
        }
        System.out.println("Training: " + trainRatingMatrix.getTotalRatingNumber() + " vs Test: "
                + testRatingMatrix.getTotalRatingNumber());

        logger.println("Initialize a biased matrix factorization recommendation model.");
        logger.flush();
        BiasedMF algo = new BiasedMF(trainRatingMatrix, false, ".//localModels//" + config.getString("NAME"));
        algo.setLogger(logger);
        algo.build();
        algo.saveModel(".//localModels//" + config.getString("NAME"));
        logger.println("Save the model.");
        logger.flush();

        //rating prediction accuracy
        double RMSE = 0;
        double MAE = 0;
        double precision = 0;
        double recall = 0;
        double map = 0;
        double ndcg = 0;
        double mrr = 0;
        double auc = 0;
        int count = 0;
        for (int i = 0; i < testRatings.size(); i++) {
            NumericRating rating = testRatings.get(i);
            double prediction = algo.predict(userIDIndexMapping.get(rating.getUserID()),
                    itemIDIndexMapping.get(rating.getItemID()), false);
            if (prediction > algo.getMaxRating())
                prediction = algo.getMaxRating();
            if (prediction < algo.getMinRating())
                prediction = algo.getMinRating();
            if (Double.isNaN(prediction)) {
                System.out.println("no prediction");
                continue;
            }
            MAE = MAE + Math.abs(rating.getValue() - prediction);
            RMSE = RMSE + Math.pow((rating.getValue() - prediction), 2);
            count++;
        }
        MAE = MAE / count;
        RMSE = Math.sqrt(RMSE / count);
        totalMAE = totalMAE + MAE;
        totalRMSE = totalRMSE + RMSE;
        System.out.println("Folder --- MAE: " + MAE + " RMSE: " + RMSE);
        logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Folder --- MAE: "
                + MAE + " RMSE: " + RMSE);
        //ranking accuracy
        if (algo.getTopN() > 0) {
            HashMap<Integer, ArrayList<ResultUnit>> results = new HashMap<Integer, ArrayList<ResultUnit>>();
            for (int i = 0; i < trainRatingMatrix.getRow(); i++) {
                ArrayList<ResultUnit> rec = algo.getRecommendationList(i);
                if (rec == null)
                    continue;
                int total = testRatingMatrix.getUserRatingNumber(i);
                if (total == 0)//this user is ignored
                    continue;
                results.put(i, rec);
            }
            RankResultGenerator generator = new RankResultGenerator(results, algo.getTopN(), testRatingMatrix,
                    trainRatingMatrix);
            precision = generator.getPrecisionN();
            totalPrecision = totalPrecision + precision;
            recall = generator.getRecallN();
            totalRecall = totalRecall + recall;
            map = generator.getMAPN();
            totalMAP = totalMAP + map;
            ndcg = generator.getNDCGN();
            totalNDCG = totalNDCG + ndcg;
            mrr = generator.getMRRN();
            totalMRR = totalMRR + mrr;
            auc = generator.getAUC();
            totalAUC = totalAUC + auc;
            System.out.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
            logger.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
        }

        logger.flush();
    }

    System.out.println("MAE: " + totalMAE / F + " RMSE: " + totalRMSE / F);
    System.out.println("Precision@N: " + totalPrecision / F);
    System.out.println("Recall@N: " + totalRecall / F);
    System.out.println("MAP@N: " + totalMAP / F);
    System.out.println("MRR@N: " + totalMRR / F);
    System.out.println("NDCG@N: " + totalNDCG / F);
    System.out.println("AUC@N: " + totalAUC / F);

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "\n" + "MAE: "
            + totalMAE / F + " RMSE: " + totalRMSE / F + "\n" + "Precision@N: " + totalPrecision / F + "\n"
            + "Recall@N: " + totalRecall / F + "\n" + "MAP@N: " + totalMAP / F + "\n" + "MRR@N: " + totalMRR / F
            + "\n" + "NDCG@N: " + totalNDCG / F + "\n" + "AUC@N: " + totalAUC / F);
    logger.flush();
    logger.close();
}

From source file:ch.epfl.lsir.xin.test.UserBasedCFTest.java

/**
 * @param args/*  w ww.j a  v  a2 s  .  c o  m*/
 */
public static void main(String[] args) throws Exception {
    // TODO Auto-generated method stub

    PrintWriter logger = new PrintWriter(".//results//UserBasedCF");
    PropertiesConfiguration config = new PropertiesConfiguration();
    config.setFile(new File(".//conf//UserBasedCF.properties"));
    try {
        config.load();
    } catch (ConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Read rating data...");
    DataLoaderFile loader = new DataLoaderFile(".//data//MoveLens100k.txt");
    loader.readSimple();
    DataSetNumeric dataset = loader.getDataset();
    System.out.println("Number of ratings: " + dataset.getRatings().size() + " Number of users: "
            + dataset.getUserIDs().size() + " Number of items: " + dataset.getItemIDs().size());
    logger.println("Number of ratings: " + dataset.getRatings().size() + ", Number of users: "
            + dataset.getUserIDs().size() + ", Number of items: " + dataset.getItemIDs().size());
    logger.flush();

    double totalMAE = 0;
    double totalRMSE = 0;
    double totalPrecision = 0;
    double totalRecall = 0;
    double totalMAP = 0;
    double totalNDCG = 0;
    double totalMRR = 0;
    double totalAUC = 0;
    int F = 5;
    logger.println(F + "- folder cross validation.");
    ArrayList<ArrayList<NumericRating>> folders = new ArrayList<ArrayList<NumericRating>>();
    for (int i = 0; i < F; i++) {
        folders.add(new ArrayList<NumericRating>());
    }
    while (dataset.getRatings().size() > 0) {
        int index = new Random().nextInt(dataset.getRatings().size());
        int r = new Random().nextInt(F);
        folders.get(r).add(dataset.getRatings().get(index));
        dataset.getRatings().remove(index);
    }

    for (int folder = 1; folder <= F; folder++) {
        logger.println("Folder: " + folder);
        System.out.println("Folder: " + folder);
        ArrayList<NumericRating> trainRatings = new ArrayList<NumericRating>();
        ArrayList<NumericRating> testRatings = new ArrayList<NumericRating>();
        for (int i = 0; i < folders.size(); i++) {
            if (i == folder - 1)//test data
            {
                testRatings.addAll(folders.get(i));
            } else {//training data
                trainRatings.addAll(folders.get(i));
            }
        }

        //create rating matrix
        HashMap<String, Integer> userIDIndexMapping = new HashMap<String, Integer>();
        HashMap<String, Integer> itemIDIndexMapping = new HashMap<String, Integer>();
        for (int i = 0; i < dataset.getUserIDs().size(); i++) {
            userIDIndexMapping.put(dataset.getUserIDs().get(i), i);
        }
        for (int i = 0; i < dataset.getItemIDs().size(); i++) {
            itemIDIndexMapping.put(dataset.getItemIDs().get(i), i);
        }
        RatingMatrix trainRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < trainRatings.size(); i++) {
            trainRatingMatrix.set(userIDIndexMapping.get(trainRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(trainRatings.get(i).getItemID()), trainRatings.get(i).getValue());
        }
        trainRatingMatrix.calculateGlobalAverage();
        trainRatingMatrix.calculateUsersMean();
        RatingMatrix testRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < testRatings.size(); i++) {
            //            if( testRatings.get(i).getValue() < 5 )
            //               continue;
            testRatingMatrix.set(userIDIndexMapping.get(testRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(testRatings.get(i).getItemID()), testRatings.get(i).getValue());
        }
        logger.println("Initialize a user based collaborative filtering recommendation model.");
        UserBasedCF algo = new UserBasedCF(trainRatingMatrix, false,
                ".//localModels//" + config.getString("NAME"));
        algo.setLogger(logger);
        algo.build();//if read local model, no need to build the model
        algo.saveModel(".//localModels//" + config.getString("NAME"));
        logger.println("Save the model.");
        System.out.println(trainRatings.size() + " vs. " + testRatings.size());
        logger.flush();

        //rating prediction accuracy
        double RMSE = 0;
        double MAE = 0;
        double precision = 0;
        double recall = 0;
        double map = 0;
        double ndcg = 0;
        double mrr = 0;
        double auc = 0;
        int count = 0;
        for (int i = 0; i < testRatings.size(); i++) {
            NumericRating rating = testRatings.get(i);
            double prediction = algo.predict(userIDIndexMapping.get(rating.getUserID()),
                    itemIDIndexMapping.get(rating.getItemID()), false);

            if (Double.isNaN(prediction)) {
                System.out.println("no prediction");
                continue;
            }
            if (prediction > algo.getMaxRating())
                prediction = algo.getMaxRating();
            if (prediction < algo.getMinRating())
                prediction = algo.getMinRating();
            MAE = MAE + Math.abs(rating.getValue() - prediction);
            RMSE = RMSE + Math.pow((rating.getValue() - prediction), 2);
            count++;
        }
        MAE = MAE / count;
        RMSE = Math.sqrt(RMSE / count);
        totalMAE = totalMAE + MAE;
        totalRMSE = totalRMSE + RMSE;
        System.out.println("Folder --- MAE: " + MAE + " RMSE: " + RMSE);
        logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Folder --- MAE: "
                + MAE + " RMSE: " + RMSE);
        logger.flush();
        //ranking accuracy
        if (algo.getTopN() > 0) {
            HashMap<Integer, ArrayList<ResultUnit>> results = new HashMap<Integer, ArrayList<ResultUnit>>();
            for (int i = 0; i < testRatingMatrix.getRow(); i++) {
                ArrayList<ResultUnit> rec = algo.getRecommendationList(i);
                if (rec == null)
                    continue;
                int total = testRatingMatrix.getUserRatingNumber(i);
                if (total == 0)//this user is ignored
                    continue;
                results.put(i, rec);
                //               for( Map.Entry<Integer, Double> entry : testRatingMatrix.getRatingMatrix().get(i).entrySet() )
                //               {
                //                  System.out.print( entry.getKey() + "(" + entry.getValue() + ") , ");
                //               }
                //               System.out.println();
                //               for( int j = 0 ; j < rec.size() ; j++ )
                //               {
                //                  System.out.print(rec.get(j).getItemIndex() + "(" + rec.get(j).getPrediciton() +
                //                        ") , ");
                //               }
                //               System.out.println("**********");
            }
            RankResultGenerator generator = new RankResultGenerator(results, algo.getTopN(), testRatingMatrix,
                    trainRatingMatrix);
            precision = generator.getPrecisionN();
            totalPrecision = totalPrecision + precision;
            recall = generator.getRecallN();
            totalRecall = totalRecall + recall;
            map = generator.getMAPN();
            totalMAP = totalMAP + map;
            ndcg = generator.getNDCGN();
            totalNDCG = totalNDCG + ndcg;
            mrr = generator.getMRRN();
            totalMRR = totalMRR + mrr;
            auc = generator.getAUC();
            totalAUC = totalAUC + auc;
            System.out.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
            logger.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
        }
    }

    System.out.println("MAE: " + totalMAE / F + " RMSE: " + totalRMSE / F);
    System.out.println("Precision@N: " + totalPrecision / F);
    System.out.println("Recall@N: " + totalRecall / F);
    System.out.println("MAP@N: " + totalMAP / F);
    System.out.println("MRR@N: " + totalMRR / F);
    System.out.println("NDCG@N: " + totalNDCG / F);
    System.out.println("AUC@N: " + totalAUC / F);
    // MovieLens100k
    //MAE: 0.7343907480119425 RMSE: 0.9405808357192891 (MovieLens 100K, shrinkage 25, neighbor size 60, PCC)
    //MAE: 0.7522376630596646 RMSE: 0.9520931265724659 (MovieLens 100K, no shrinkage , neighbor size 40, COSINE)
    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "\n" + "MAE: "
            + totalMAE / F + " RMSE: " + totalRMSE / F + "\n" + "Precision@N: " + totalPrecision / F + "\n"
            + "Recall@N: " + totalRecall / F + "\n" + "MAP@N: " + totalMAP / F + "\n" + "MRR@N: " + totalMRR / F
            + "\n" + "NDCG@N: " + totalNDCG / F + "\n" + "AUC@N: " + totalAUC / F);
    logger.flush();
    logger.close();

}

From source file:ch.epfl.lsir.xin.test.MFTest.java

/**
 * @param args/*from w  w w . j ava2  s . c o  m*/
 */
public static void main(String[] args) throws Exception {
    // TODO Auto-generated method stub

    PrintWriter logger = new PrintWriter(".//results//MF");

    PropertiesConfiguration config = new PropertiesConfiguration();
    config.setFile(new File("conf//MF.properties"));
    try {
        config.load();
    } catch (ConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Read rating data...");
    logger.flush();
    DataLoaderFile loader = new DataLoaderFile(".//data//MoveLens100k.txt");
    loader.readSimple();
    DataSetNumeric dataset = loader.getDataset();
    System.out.println("Number of ratings: " + dataset.getRatings().size() + " Number of users: "
            + dataset.getUserIDs().size() + " Number of items: " + dataset.getItemIDs().size());
    logger.println("Number of ratings: " + dataset.getRatings().size() + ", Number of users: "
            + dataset.getUserIDs().size() + ", Number of items: " + dataset.getItemIDs().size());
    logger.flush();

    double totalMAE = 0;
    double totalRMSE = 0;
    double totalPrecision = 0;
    double totalRecall = 0;
    double totalMAP = 0;
    double totalNDCG = 0;
    double totalMRR = 0;
    double totalAUC = 0;
    int F = 5;
    logger.println(F + "- folder cross validation.");
    logger.flush();
    ArrayList<ArrayList<NumericRating>> folders = new ArrayList<ArrayList<NumericRating>>();
    for (int i = 0; i < F; i++) {
        folders.add(new ArrayList<NumericRating>());
    }
    while (dataset.getRatings().size() > 0) {
        int index = new Random().nextInt(dataset.getRatings().size());
        int r = new Random().nextInt(F);
        folders.get(r).add(dataset.getRatings().get(index));
        dataset.getRatings().remove(index);
    }

    for (int folder = 1; folder <= F; folder++) {
        System.out.println("Folder: " + folder);
        logger.println("Folder: " + folder);
        logger.flush();
        ArrayList<NumericRating> trainRatings = new ArrayList<NumericRating>();
        ArrayList<NumericRating> testRatings = new ArrayList<NumericRating>();
        for (int i = 0; i < folders.size(); i++) {
            if (i == folder - 1)//test data
            {
                testRatings.addAll(folders.get(i));
            } else {//training data
                trainRatings.addAll(folders.get(i));
            }
        }

        //create rating matrix
        HashMap<String, Integer> userIDIndexMapping = new HashMap<String, Integer>();
        HashMap<String, Integer> itemIDIndexMapping = new HashMap<String, Integer>();
        for (int i = 0; i < dataset.getUserIDs().size(); i++) {
            userIDIndexMapping.put(dataset.getUserIDs().get(i), i);
        }
        for (int i = 0; i < dataset.getItemIDs().size(); i++) {
            itemIDIndexMapping.put(dataset.getItemIDs().get(i), i);
        }
        RatingMatrix trainRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < trainRatings.size(); i++) {
            trainRatingMatrix.set(userIDIndexMapping.get(trainRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(trainRatings.get(i).getItemID()), trainRatings.get(i).getValue());
        }
        RatingMatrix testRatingMatrix = new RatingMatrix(dataset.getUserIDs().size(),
                dataset.getItemIDs().size());
        for (int i = 0; i < testRatings.size(); i++) {
            //            if( testRatings.get(i).getValue() < 5 )
            //               continue;
            testRatingMatrix.set(userIDIndexMapping.get(testRatings.get(i).getUserID()),
                    itemIDIndexMapping.get(testRatings.get(i).getItemID()), testRatings.get(i).getValue());
        }
        System.out.println("Training: " + trainRatingMatrix.getTotalRatingNumber() + " vs Test: "
                + testRatingMatrix.getTotalRatingNumber());

        logger.println("Initialize a matrix factorization based recommendation model.");
        logger.flush();
        MatrixFactorization algo = new MatrixFactorization(trainRatingMatrix, false,
                ".//localModels//" + config.getString("NAME"));
        algo.setLogger(logger);
        algo.build();
        algo.saveModel(".//localModels//" + config.getString("NAME"));
        logger.println("Save the model.");
        logger.flush();

        //rating prediction accuracy
        double RMSE = 0;
        double MAE = 0;
        double precision = 0;
        double recall = 0;
        double map = 0;
        double ndcg = 0;
        double mrr = 0;
        double auc = 0;
        int count = 0;
        for (int i = 0; i < testRatings.size(); i++) {
            NumericRating rating = testRatings.get(i);
            double prediction = algo.predict(userIDIndexMapping.get(rating.getUserID()),
                    itemIDIndexMapping.get(rating.getItemID()), false);
            if (prediction > algo.getMaxRating())
                prediction = algo.getMaxRating();
            if (prediction < algo.getMinRating())
                prediction = algo.getMinRating();
            if (Double.isNaN(prediction)) {
                System.out.println("no prediction");
                continue;
            }
            MAE = MAE + Math.abs(rating.getValue() - prediction);
            RMSE = RMSE + Math.pow((rating.getValue() - prediction), 2);
            count++;
        }
        MAE = MAE / count;
        RMSE = Math.sqrt(RMSE / count);
        totalMAE = totalMAE + MAE;
        totalRMSE = totalRMSE + RMSE;
        System.out.println("Folder --- MAE: " + MAE + " RMSE: " + RMSE);
        logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " Folder --- MAE: "
                + MAE + " RMSE: " + RMSE);
        //ranking accuracy
        if (algo.getTopN() > 0) {
            HashMap<Integer, ArrayList<ResultUnit>> results = new HashMap<Integer, ArrayList<ResultUnit>>();
            for (int i = 0; i < trainRatingMatrix.getRow(); i++) {
                ArrayList<ResultUnit> rec = algo.getRecommendationList(i);
                if (rec == null)
                    continue;
                int total = testRatingMatrix.getUserRatingNumber(i);
                if (total == 0)//this user is ignored
                    continue;
                results.put(i, rec);
                //               for( Map.Entry<Integer, Double> entry : testRatingMatrix.getRatingMatrix().get(i).entrySet() )
                //               {
                //                  System.out.print( entry.getKey() + "(" + entry.getValue() + ") , ");
                //               }
                //               System.out.println();
                //               for( int j = 0 ; j < rec.size() ; j++ )
                //               {
                //                  System.out.print(rec.get(j).getItemIndex() + "(" + rec.get(j).getPrediciton() +
                //                        ") , ");
                //               }
                //               System.out.println("**********");
            }
            RankResultGenerator generator = new RankResultGenerator(results, algo.getTopN(), testRatingMatrix,
                    trainRatingMatrix);
            precision = generator.getPrecisionN();
            totalPrecision = totalPrecision + precision;
            recall = generator.getRecallN();
            totalRecall = totalRecall + recall;
            map = generator.getMAPN();
            totalMAP = totalMAP + map;
            ndcg = generator.getNDCGN();
            totalNDCG = totalNDCG + ndcg;
            mrr = generator.getMRRN();
            totalMRR = totalMRR + mrr;
            auc = generator.getAUC();
            totalAUC = totalAUC + auc;
            System.out.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
            logger.println("Folder --- precision: " + precision + " recall: " + recall + " map: " + map
                    + " ndcg: " + ndcg + " mrr: " + mrr + " auc: " + auc);
        }

        logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " MAE: " + MAE
                + " RMSE: " + RMSE);
        logger.flush();
    }

    System.out.println("MAE: " + totalMAE / F + " RMSE: " + totalRMSE / F);
    System.out.println("Precision@N: " + totalPrecision / F);
    System.out.println("Recall@N: " + totalRecall / F);
    System.out.println("MAP@N: " + totalMAP / F);
    System.out.println("MRR@N: " + totalMRR / F);
    System.out.println("NDCG@N: " + totalNDCG / F);
    System.out.println("AUC@N: " + totalAUC / F);

    logger.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + "\n" + "MAE: "
            + totalMAE / F + " RMSE: " + totalRMSE / F + "\n" + "Precision@N: " + totalPrecision / F + "\n"
            + "Recall@N: " + totalRecall / F + "\n" + "MAP@N: " + totalMAP / F + "\n" + "MRR@N: " + totalMRR / F
            + "\n" + "NDCG@N: " + totalNDCG / F + "\n" + "AUC@N: " + totalAUC / F);
    logger.flush();
    logger.close();

}

From source file:edu.oregonstate.eecs.mcplan.domains.spbj.SpBjSimulator.java

public static void main(final String[] argv) throws IOException {
    final int seed = 43;
    final RandomGenerator rng = new MersenneTwister(seed);
    //      final Deck deck = new InfiniteSpanishDeck( rng );

    // TODO: Debugging code
    final Deque<Card> stacked = new ArrayDeque<Card>();
    for (int i = 0; i < 20; ++i) {
        stacked.push(Card.C_2c);// ww  w.  ja v a2 s  .c  o m
        stacked.push(Card.C_2d);
        stacked.push(Card.C_2h);
        stacked.push(Card.C_2s);
    }
    final Deck deck = new StackedDeck(stacked);

    //      final ArrayList<ArrayList<Card>> test_hands = new ArrayList<ArrayList<Card>>();
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_Kc, Card.C_9h, Card.C_2c ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_6c, Card.C_7h, Card.C_8c ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_6c, Card.C_7c, Card.C_8c ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_6s, Card.C_7s, Card.C_8s ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_7c, Card.C_7h, Card.C_7c ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_7c, Card.C_7c, Card.C_7c ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_7s, Card.C_7s, Card.C_7s ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_9c ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_6c ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c ) ) );
    //      test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_3c, Card.C_2c, Card.C_Ac ) ) );
    //
    //      final ArrayList<ArrayList<Card>> dealer_test_hands = new ArrayList<ArrayList<Card>>();
    //      dealer_test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_Kc, Card.C_Kc ) ) );
    //      dealer_test_hands.add( new ArrayList<Card>( Arrays.asList( Card.C_Kc, Card.C_Ac ) ) );
    //
    //      for( final ArrayList<Card> dealer_cards : dealer_test_hands ) {
    //         for( final ArrayList<Card> cards : test_hands ) {
    //            final SpBjState s = new SpBjState( deck );
    //            s.init();
    //            s.dealer_hand.clear();
    //            s.dealer_hand.addAll( dealer_cards );
    //            s.player_hand.hands.set( 0, cards );
    //            final SpBjSimulator sim = new SpBjSimulator( s );
    //            sim.takeAction( new JointAction<SpBjAction>(
    //               new SpBjAction( new SpBjActionCategory[] { SpBjActionCategory.Pass } ) ) );
    //
    //            System.out.print( "Hand: " );
    //            System.out.print( sim.state().player_hand );
    //            System.out.print( " (" );
    //            final ArrayList<int[]> values = sim.state().player_hand.values();
    //            for( int i = 0; i < values.size(); ++i ) {
    //               if( i > 0 ) {
    //                  System.out.print( ", " );
    //               }
    //               System.out.print( Arrays.toString( values.get( i ) ) );
    //            }
    //            System.out.println( ")" );
    //
    //            System.out.print( "Reward: " );
    //            System.out.println( Arrays.toString( sim.reward() ) );
    //            System.out.print( "Dealer hand: " );
    //            System.out.print( sim.state().dealerHand().toString() );
    //            System.out.print( " (" );
    //            System.out.print( SpBjHand.handValue( sim.state().dealerHand() )[0] );
    //            System.out.println( ")" );
    //            System.out.println( "----------------------------------------" );
    //         }
    //      }

    while (true) {
        final SpBjState s = new SpBjState(deck);
        s.init();
        final SpBjSimulator sim = new SpBjSimulator(s);

        final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        while (!s.isTerminal()) {
            System.out.print("Dealer showing: ");
            System.out.println(sim.state().dealerUpcard());

            System.out.print("Hand: ");
            System.out.print(sim.state().player_hand);
            System.out.print(" (");
            final ArrayList<int[]> values = sim.state().player_hand.values();
            for (int i = 0; i < values.size(); ++i) {
                if (i > 0) {
                    System.out.print(", ");
                }
                System.out.print(Arrays.toString(values.get(i)));
            }
            System.out.println(")");

            final SpBjActionGenerator actions = new SpBjActionGenerator();
            actions.setState(sim.state(), 0);
            for (final SpBjAction a : Fn.in(actions)) {
                System.out.println(a);
            }

            final String cmd = reader.readLine();
            assert (cmd.length() == sim.state().player_hand.Nhands);
            final SpBjActionCategory[] cat = new SpBjActionCategory[cmd.length()];
            for (int i = 0; i < cmd.length(); ++i) {
                final char c = cmd.charAt(i);
                if ('h' == c) {
                    cat[i] = SpBjActionCategory.Hit;
                } else if ('p' == c) {
                    cat[i] = SpBjActionCategory.Pass;
                } else if ('d' == c) {
                    cat[i] = SpBjActionCategory.Double;
                } else if ('s' == c) {
                    cat[i] = SpBjActionCategory.Split;
                }
            }
            sim.takeAction(new JointAction<SpBjAction>(new SpBjAction(cat)));
        }

        System.out.print("Hand: ");
        System.out.print(sim.state().player_hand);
        System.out.print(" (");
        final ArrayList<int[]> values = sim.state().player_hand.values();
        for (int i = 0; i < values.size(); ++i) {
            if (i > 0) {
                System.out.print(", ");
            }
            System.out.print(Arrays.toString(values.get(i)));
        }
        System.out.println(")");

        System.out.print("Reward: ");
        System.out.println(Arrays.toString(sim.reward()));
        System.out.print("Dealer hand: ");
        System.out.print(sim.state().dealerHand().toString());
        System.out.print(" (");
        System.out.print(SpBjHand.handValue(sim.state().dealerHand())[0]);
        System.out.println(")");
        System.out.println("----------------------------------------");
    }
}

From source file:com.sociesc.findasmartphonespark.Main.java

public static void main(String[] args) {
    String apiPrefix = "api/v1/";

    //setIpAddress("192.168.56.1");
    setPort(9010);/*from  w w w. j  a  v a  2s.  c  om*/

    try {
        Logger.getLogger(Main.class.getName()).log(Level.INFO, "Criando banco de dados");
        DatabaseUtils.seedDatabase();
    } catch (SQLException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
    }

    Dao<User> userDao = new Dao(User.class);

    get(apiPrefix + "/hello/:name", (request, response) -> {
        ObjectMapper objectMapper = new ObjectMapper();

        /*ArrayList<AccessPoint> arrayAp = new ArrayList<AccessPoint>();
                
        for (int i = 0; i < 10; i++) {
        AccessPoint ap = new AccessPoint();
        ap.setBSSID("AP" + i);
        ap.setSSID("00:00:00:0" + i);
        ap.setRSSI(-50 + i);
        ap.setSala("Sala" + i);
                
        arrayAp.add(ap);
                
        //System.out.println("Nome: " + ap.getBSSID() + " - Mac: " + ap.getSSID() + " - Sinal: " + ap.getRSSI());
        }
                
        String retornoJson = rwJson.writeJson(arrayAp);*/

        //objectMapper.readValue(URLDecoder.decode(request.params(":name"), "UTF-8"), new TypeReference(String("lol")));
        ArrayList<AccessPoint> arrayAp = null;
        try {
            arrayAp = rwJson.readJson(URLDecoder.decode(request.params(":name"), "UTF-8"));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return arrayAp.get(0).getBSSID();

        //return "Hello: " + request.params(":name");
        //return arrayAp[0].get;
    });

    post(apiPrefix + "/findUser/:data", (request, response) -> {
        String userId = request.params(":data");

        ArrayList<AccessPoint> aps = rwJson.readJson(userId.toString());

        /*JsonObject json = new JsonObject();
                
        try {
        json = JsonObject.readFrom(request.params(":data"));
        } catch (Exception ex) {
        System.out.println("erro no json:\n" + ex.getMessage());
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        json.add("error", ex.getMessage());
        response.status(500);
        }*/
        try {
            for (int i = 0; i < aps.size(); i++) {
                System.out.println("Nome: " + aps.get(i).getBSSID() + " - Mac: " + aps.get(i).getSSID()
                        + " - Sinal: " + aps.get(i).getRSSI() + " - Sala: " + aps.get(i).getSala());
            }
        } catch (Exception ex) {
            System.out.println("erro no json:\n" + ex.getMessage());
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
            //json.add("error", ex.getMessage());
            response.status(500);
            return ex.getMessage();
        }

        return userId.toString();
    });

    /*post(apiPrefix + "/findUser/", (request, response) ->{
     JsonObject json = new JsonObject();
            
    // Informaes do roteador/AP
    String[] BSSID; // basic service set identifier - nome da conexo
    String[] SSID; // service set identifier - identificador nico da conexo
    int[]    RSSI; // received signal strength indicator - potencia do sinal (-87 a -32)
    String   sala;
            
    String jsonBody = request.body();
    JsonObject reqJson = JsonObject.readFrom(jsonBody);
    JsonObject wifiJson = reqJson.get("wifi").asObject();
            
    System.out.println("reqJson.size()" + reqJson.size() + "\nwifiJson.size()" + wifiJson.size());
            
    RSSI = new int[wifiJson.size()];
    BSSID = new String[wifiJson.size()];
    SSID = new String[wifiJson.size()];
            
    try{
        for (int i = 0; i < wifiJson.size(); i++) {
            // recebe informaes das conexes encontradas
            BSSID[i] = wifiJson.get("BSSID").asString();
            SSID[i] = wifiJson.get("SSID").asString();
            RSSI[i] = wifiJson.get("RSSI").asInt();
        }
            
        return json.toString();
    }catch(Exception ex){
        System.out.println("erro no json:\n" + ex.getMessage());
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        json.add("error", ex.getMessage());
        response.status(500);
    }
    return json.toString();
    });*/

    get(apiPrefix + "/users", (request, response) -> {
        JsonObject json = new JsonObject();

        request.params();

        try {
            List<User> users = userDao.findAll();
            JsonArray usersJson = new JsonArray();
            for (User u : users) {
                JsonObject uJson = new JsonObject();
                uJson.add("id", u.getId());
                uJson.add("name", u.getName());
                uJson.add("email", u.getEmail());
                usersJson.add(uJson);
            }
            json.add("users", usersJson);

        } catch (SQLException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
            json.add("error", ex.getMessage());
            response.status(500);
        }

        return json.toString();
    });

    /*get(apiPrefix + "/users/:id", (request, response) -> {
    Long userId = Long.parseLong(request.params(":id"));
    JsonObject json = new JsonObject();
    try{
        User user = userDao.findById(userId);
        if(user == null){
            json.add("error", "user not found");
            response.status(404);
            return json.toString();
        }
                
        JsonObject userJson = new JsonObject();
        userJson.add("id", user.getId());
        userJson.add("name", user.getName());
        userJson.add("email", user.getEmail());
        json.add("user", userJson);
        return json.toString();
                
    }catch(Exception ex){
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        json.add("error", ex.getMessage());
        response.status(500);
    }
            
    return json.toString();
    });*/

    delete(apiPrefix + "/users/:id", (request, response) -> {
        Long userId = Long.parseLong(request.params(":id"));
        JsonObject json = new JsonObject();
        try {
            userDao.removeById(userId);
            json.add("message", "user removed");
            response.status(200);
            return json.toString();
        } catch (Exception ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
            json.add("error", ex.getMessage());
            response.status(500);
        }

        return json.toString();
    });

    put(apiPrefix + "/users/:id", (request, response) -> {
        Long userId = Long.parseLong(request.params(":id"));
        JsonObject json = new JsonObject();
        try {
            String jsonBody = request.body();
            JsonObject reqJson = JsonObject.readFrom(jsonBody);
            JsonObject userJson = reqJson.get("user").asObject();
            String name = userJson.get("name") != null ? userJson.get("name").asString() : null;
            String email = userJson.get("email") != null ? userJson.get("email").asString() : null;
            String password = userJson.get("password") != null ? userJson.get("password").asString() : null;

            User user = userDao.findById(userId);

            if (name != null)
                user.setName(name);

            if (email != null)
                user.setEmail(email);

            if (password != null) {
                String passwordDigest = DatabaseUtils.criptPass(password);
                user.setPasswordDigest(passwordDigest);
            }

            userDao.update(user);

            JsonObject resUserJson = new JsonObject();
            resUserJson.add("id", user.getId());
            resUserJson.add("name", user.getName());
            resUserJson.add("email", user.getEmail());

            json.add("user", resUserJson);
            return json.toString();

        } catch (Exception ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
            json.add("error", ex.getMessage());
            response.status(500);
        }
        return json.toString();
    });

    post(apiPrefix + "/users", (request, response) -> {
        JsonObject json = new JsonObject();
        try {
            String jsonBody = request.body();
            JsonObject reqJson = JsonObject.readFrom(jsonBody);
            JsonObject userJson = reqJson.get("user").asObject();
            User user = new User();
            user.setName(userJson.get("name").asString());
            user.setEmail(userJson.get("email").asString());
            user.setPasswordDigest(DatabaseUtils.criptPass("tempPass"));
            userDao.create(user);

            JsonObject resUserJson = new JsonObject();
            resUserJson.add("id", user.getId());
            resUserJson.add("name", user.getName());
            resUserJson.add("email", user.getEmail());
            resUserJson.add("passwordDigest", user.getPasswordDigest());

            json.add("user", resUserJson);
            return json.toString();
        } catch (Exception ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
            json.add("error", ex.getMessage());
            response.status(500);
        }
        return json.toString();
    });

}

From source file:com.au.splashinc.JControl.MainCLI.java

public static void main(String[] args) throws AWTException, InterruptedException {
    MyControllers myControllers = new MyControllers();
    ArrayList<Controller> controllers = myControllers.GetControllers();
    myControllers = new MyControllers(true);
    ArrayList<Controller> controllers2 = myControllers.GetControllers();

    System.out.println("Let's do this");
    System.out.println("Length without all USB: " + controllers.size());
    System.out.println("Length with all USB: " + controllers2.size());
    AControllerLoader mjs = new DarkForcesJsonLoader("This is a test");
    mjs.LoadConfig();/*from  ww  w  . ja va 2 s  . c  o m*/
    //JSONObject obj = new JSONObject();
    //obj.put("Hello", "World");
    //System.out.println("JSON String: " + obj.toJSONString());
    if (controllers.size() > 0) {
        try {
            MyController controller = new MyController(controllers.get(0));
            AControllerAction buttonAction = new SimpleControllerAction(controller, mjs);
            while (true) {
                buttonAction.Execute();
                Thread.sleep(20);
            }
        } catch (AWTException ex) {
            System.out.println(ex.toString());
        }
    }
}

From source file:edu.oregonstate.eecs.mcplan.domains.toy.RallyWorld.java

public static void main(final String[] argv) throws NumberFormatException, IOException {
    final RandomGenerator rng = new MersenneTwister(42);
    final double dmg_slow = 0.1;
    final double dmg_fast = 0.9;
    final double pfault = 1.0;
    final int Nfaults = 2;
    final double pbreak = 1.0;
    final int W = 5;
    final int Nreckless = 3;

    final Parameters params = new Parameters(rng, dmg_slow, dmg_fast, pfault, Nfaults, pbreak, W, Nreckless);
    final Actions actions = new Actions(params);
    final FsssModel model = new FsssModel(params);
    State s = model.initialState();

    while (!s.isTerminal()) {
        System.out.println(s);// www  . j a v  a  2s  .  co  m
        System.out.println("R(s): " + model.reward(s));
        actions.setState(s, 0);
        final ArrayList<Action> action_list = Fn.takeAll(actions);
        for (int i = 0; i < action_list.size(); ++i) {
            System.out.println(i + ": " + action_list.get(i));
        }
        System.out.print(">>> ");
        final BufferedReader cin = new BufferedReader(new InputStreamReader(System.in));
        final int choice = Integer.parseInt(cin.readLine());
        final Action a = action_list.get(choice);
        System.out.println("R(s, a): " + model.reward(s, a));
        s = model.sampleTransition(s, a);
    }
}