source: src/main/java/agents/anac/y2015/JonnyBlack/Party.java@ 126

package agents.anac.y2015.JonnyBlack;

import java.util.Collections;
import java.util.Vector;

import genius.core.Bid;
import genius.core.issue.IssueDiscrete;
import genius.core.issue.ValueDiscrete;
import genius.core.utility.AdditiveUtilitySpace;

import java.util.HashMap;

public class Party {
        String ID;
        int counts[][];
        double weights[];
        public Vector<BidHolder> orderedBids;
        Party(String id,int[][] issueVals)
        {
                this.ID =id;
                counts = new int[issueVals.length][];
                for(int i=0;i<issueVals.length;i++)
                {
                        counts[i] = new int[issueVals[i].length];
                }
                weights = new double[issueVals.length];
                this.orderedBids=new Vector<BidHolder>();
        }
        
        public double getPredictedUtility(Bid b,AdditiveUtilitySpace us)
        {
                double total = 0;
                for(int i=0;i<this.counts.length;i++)
                {
                        total += getValueForIssue(b, us, i);
                }
                return total;
        }
        
        public double getValueForIssue(Bid b, AdditiveUtilitySpace us,int i)
        {
                double eval =0;
                try {
                IssueDiscrete id = (IssueDiscrete)us.getIssue(i);
                int choice = id.getValueIndex((ValueDiscrete)b.getValue(i+1));
                eval = weights[i]*getVal(i, choice);
                                
                } catch (Exception e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
                return eval;
        }
        
        public double getVal(int i,int j)
        {
                int ord=0;
                for(int k =0;k<counts[i].length;k++)
                {
                        if(counts[i][k]<=counts[i][j])
                                ord++;
                }
                double part = 1.0/counts[i].length;
                return ord*part;
        }
        
        public void calcWeights()
        {
                calcWeightsWithGini();
                //calcWeightsWithEntropy();
        }
        
        public void calcWeightsWithGini()
        {
                double sumweight =0;
                for(int i =0;i<weights.length;i++)
                {
                        this.weights[i] = weigthWithGini(i);
                        sumweight+=this.weights[i];
                }
                for(int i =0;i<weights.length;i++)
                {
                        this.weights[i] /= sumweight;
                
                }
        }
        
        
        public void calcWeightsWithEntropy()
        {
                double sumweight =0;
                double maxent = 0;
                for(int i =0;i<weights.length;i++)
                {
                        this.weights[i] = weigthWithEntropy(i);
                        if(this.weights[i]>maxent)
                                maxent=this.weights[i];
                }
                for(int i =0;i<weights.length;i++)
                {
                        if(maxent==0)
                                this.weights[i]=1;
                        else
                                this.weights[i]=maxent/this.weights[i];
                        sumweight+=this.weights[i];
                }
                for(int i =0;i<weights.length;i++)
                {
                        this.weights[i] /= sumweight;
                
                }
        }
        
        public double getWeight(int ind)
        {
                return this.weigthWithGini(ind);
        }
        
        private double weigthWithGini(int ind)
        {
                double w = 0;
                int sum =0;
                for(int i =0;i<this.counts[ind].length;i++)
                {
                        sum+=this.counts[ind][i];
                        double r =  1.0*this.counts[ind][i]*this.counts[ind][i];
                        w+=r;
                }
                return w/(sum*sum);
        }
        
        private double weigthWithEntropy(int ind)
        {
                double w = 0;
                int sum =0;
                for(int i =0;i<this.counts[ind].length;i++)
                {
                        sum+=this.counts[ind][i];
                }
                for(int i =0;i<this.counts[ind].length;i++)
                {
                        if(this.counts[ind][i]==0)
                                continue;
                        double p = 1.0*this.counts[ind][i]/sum;
                        w+= - p*Math.log(p);
                }
                return w/(sum*sum);
        }
        @Override
        public boolean equals(Object obj) {
                return this.ID.equals(((Party) obj).ID);
        }
        
        public void show()
        {       
                for(int i =0;i<this.counts.length;i++)
                {
                        System.out.print(this.weights[i]+" ");
                        for(int j =0;j<this.counts[i].length;j++)
                        {
                                System.out.print(this.counts[i][j]+" ");
                        }       
                        System.out.println();
                }
                
        }       
        public void orderBids(AdditiveUtilitySpace us)
        {
                for(BidHolder b : orderedBids)
                {
                        b.v = this.getPredictedUtility(b.b, us);
                }
                Collections.sort(orderedBids);
        }

        public void setOrderedBids(Vector<BidHolder> acceptableBids,AdditiveUtilitySpace us) {
                for(BidHolder bh :acceptableBids)
                {
                        BidHolder bh1 = new BidHolder();
                        bh1.b=bh.b;
                        bh1.v = this.getPredictedUtility(bh.b, us);
                        this.orderedBids.add(bh1);
                }
        }
}