edu.anu.spice.SemanticTuple.java Source code

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Here is the source code for edu.anu.spice.SemanticTuple.java

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/*
 * Copyright (c) 2016, Peter Anderson <peter.anderson@anu.edu.au>
 *
 * This file is part of Semantic Propositional Image Caption Evaluation
 * (SPICE).
 * 
 * SPICE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
    
 * SPICE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
    
 * You should have received a copy of the GNU Affero General Public
 * License along with SPICE.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package edu.anu.spice;

import java.util.ArrayList;
import java.util.Iterator;

import org.json.simple.JSONArray;
import org.json.simple.JSONAware;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;

import com.google.common.collect.ComparisonChain;
import com.google.common.collect.Ordering;

public class SemanticTuple implements JSONAware, Comparable<SemanticTuple> {

    public ArrayList<SemanticConcept> tuple;
    public boolean truthValue;
    public double idf; // Inverse document frequency, or 1 if not in use

    public SemanticTuple(SemanticConcept object) {
        this.tuple = new ArrayList<SemanticConcept>();
        this.tuple.add(object);
        this.truthValue = false;
        this.idf = 1;
    }

    public SemanticTuple(SemanticConcept object, SemanticConcept attribute) {
        this.tuple = new ArrayList<SemanticConcept>();
        this.tuple.add(object);
        this.tuple.add(attribute);
        this.truthValue = false;
        this.idf = 1;
    }

    public SemanticTuple(SemanticConcept object1, SemanticConcept relation, SemanticConcept object2) {
        this.tuple = new ArrayList<SemanticConcept>();
        this.tuple.add(object1);
        this.tuple.add(relation);
        this.tuple.add(object2);
        this.truthValue = false;
        this.idf = 1;
    }

    public int size() {
        return this.tuple.size();
    }

    public SemanticConcept get(int i) {
        return tuple.get(i);
    }

    public boolean similarTo(SemanticTuple o) {
        if (o == null) {
            return false;
        }
        if (this.tuple.size() != o.tuple.size()) {
            return false;
        }
        for (int i = 0; i < this.tuple.size(); i++) {
            if (!this.tuple.get(i).similarTo(o.tuple.get(i))) {
                return false;
            }
        }
        return true;
    }

    public ArrayList<ArrayList<String>> enumerateTuples() {
        ArrayList<ArrayList<String>> result = new ArrayList<ArrayList<String>>();
        if (this.tuple.size() == 1) {
            SemanticConcept object = this.tuple.get(0);
            for (String objectWord : object.concepts) {
                ArrayList<String> tuple = new ArrayList<String>();
                tuple.add(objectWord);
                result.add(tuple);
            }
        } else if (this.tuple.size() == 2) {
            SemanticConcept object = this.tuple.get(0);
            SemanticConcept attribute = this.tuple.get(1);
            for (String objectWord : object.concepts) {
                for (String attrWord : attribute.concepts) {
                    ArrayList<String> tuple = new ArrayList<String>();
                    tuple.add(objectWord);
                    tuple.add(attrWord);
                    result.add(tuple);
                }
            }
        } else if (this.tuple.size() == 3) {
            SemanticConcept src = this.tuple.get(0);
            SemanticConcept relation = this.tuple.get(1);
            SemanticConcept tgt = this.tuple.get(2);
            for (String srcWord : src.concepts) {
                for (String relWord : relation.concepts) {
                    for (String tgtWord : tgt.concepts) {
                        ArrayList<String> tuple = new ArrayList<String>();
                        tuple.add(srcWord);
                        tuple.add(relWord);
                        tuple.add(tgtWord);
                        result.add(tuple);
                    }
                }
            }
        }
        return result;
    }

    public boolean matchesTo(SemanticTuple o) {
        if (o == null) {
            return false;
        }
        if (this.tuple.size() != o.tuple.size()) {
            return false;
        }
        for (int i = 0; i < this.tuple.size(); i++) {
            if (!this.tuple.get(i).equals(o.tuple.get(i))) {
                return false;
            }
        }
        return true;
    }

    public void merge(SemanticTuple o) {
        if (this.tuple.size() != o.tuple.size()) {
            return;
        }
        for (int i = 0; i < this.tuple.size(); i++) {
            SemanticConcept merged = this.tuple.get(i);
            merged.merge(o.tuple.get(i));
            this.tuple.set(i, merged);
        }
        this.truthValue = false;
    }

    @Override
    public String toString() {
        StringBuilder value_list = new StringBuilder();
        value_list.append("(");
        for (Iterator<SemanticConcept> iter = this.tuple.iterator(); iter.hasNext();) {
            value_list.append(iter.next());
            if (iter.hasNext()) {
                value_list.append(",");
            }
        }
        value_list.append(")");
        return value_list.toString();
    }

    @SuppressWarnings("unchecked")
    @Override
    public String toJSONString() {
        JSONObject jsonObj = new JSONObject();
        JSONArray tuple = new JSONArray();
        for (SemanticConcept concept : this.tuple) {
            tuple.add(concept.toJSONString());
        }
        jsonObj.put("tuple", tuple);
        jsonObj.put("truth_value", this.truthValue);
        return JSONValue.toJSONString(jsonObj);
    }

    @Override
    public int compareTo(SemanticTuple o) {
        return ComparisonChain.start().compareTrueFirst(this.truthValue, o.truthValue)
                .compare(this.tuple, o.tuple, Ordering.<SemanticConcept>natural().lexicographical()).result();
    }
}