| 1 | package agents.anac.y2013.MetaAgent;
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| 2 |
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| 3 | import java.io.Serializable;
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| 4 | import java.util.ArrayList;
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| 5 | import java.util.HashMap;
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| 6 | import java.util.Iterator;
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| 7 | import java.util.List;
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| 8 | import java.util.Map.Entry;
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| 9 | import java.util.Set;
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| 10 |
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| 11 | import genius.core.Agent;
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| 12 | import genius.core.Bid;
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| 13 | import genius.core.Domain;
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| 14 | import genius.core.NegotiationResult;
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| 15 | import genius.core.SupportedNegotiationSetting;
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| 16 | import genius.core.actions.Action;
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| 17 | import genius.core.actions.EndNegotiation;
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| 18 | import genius.core.actions.Offer;
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| 19 | import genius.core.issue.ISSUETYPE;
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| 20 | import genius.core.issue.Issue;
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| 21 | import genius.core.issue.IssueDiscrete;
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| 22 | import genius.core.issue.IssueInteger;
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| 23 | import genius.core.issue.IssueReal;
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| 24 | import genius.core.issue.Objective;
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| 25 | import genius.core.issue.Value;
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| 26 | import genius.core.issue.ValueDiscrete;
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| 27 | import genius.core.issue.ValueInteger;
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| 28 | import genius.core.issue.ValueReal;
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| 29 | import genius.core.utility.AdditiveUtilitySpace;
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| 30 | import genius.core.utility.EVALUATORTYPE;
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| 31 | import genius.core.utility.Evaluator;
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| 32 | import genius.core.utility.EvaluatorDiscrete;
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| 33 | import genius.core.utility.EvaluatorInteger;
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| 34 | import genius.core.utility.EvaluatorReal;
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| 35 |
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| 36 | public class MetaAgent2013 extends Agent {
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| 37 | private Agent myAgent;
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| 38 | private boolean agentInit;
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| 39 | private Action actionOfPartner;
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| 40 | HashMap<String, Double> features;
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| 41 | double opponentFirstBid, slopeBBUA, absSlopeBBUA, avgUtilBBUA;
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| 42 | boolean isUpdated;
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| 43 | AgentManager manager = new AgentManager();
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| 44 |
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| 45 | @Override
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| 46 | @SuppressWarnings("deprecation")
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| 47 | public void init() {
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| 48 | agentInit = false;
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| 49 | opponentFirstBid = 0;
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| 50 | slopeBBUA = 0;
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| 51 | absSlopeBBUA = 0;
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| 52 | avgUtilBBUA = 0;
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| 53 | Serializable s = loadSessionData();
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| 54 | if (s != null) {
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| 55 | manager = (AgentManager) s;
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| 56 | myAgent = manager.SelectBestAgent();
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| 57 | myAgent.internalInit(this.sessionNr, this.sessionsTotal,
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| 58 | this.startTime, this.totalTime, this.timeline,
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| 59 | this.utilitySpace, this.parametervalues, this.getAgentID());
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| 60 | myAgent.setName(this.getName());
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| 61 | myAgent.init();
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| 62 | agentInit = true;
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| 63 | }
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| 64 | isUpdated = false;
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| 65 | }
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| 66 |
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| 67 | @Override
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| 68 | public void endSession(NegotiationResult res) {
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| 69 | if (!isUpdated) {
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| 70 | manager.UpdateUtility("", res.getMyDiscountedUtility());
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| 71 | isUpdated = true;
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| 72 | }
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| 73 | saveSessionData(manager);
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| 74 | }
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| 75 |
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| 76 | private void getDomainParams() {
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| 77 | Domain d = this.utilitySpace.getDomain();
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| 78 | List<Issue> a = d.getIssues();
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| 79 |
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| 80 | // params = new double[14];
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| 81 | // //(Intercept),firstBBUA,slopeBBUA,absSlopeBBUA,avgUtilBBUA,DiscountFactor,DomainSize,numOfIssues,MinSize,MaxSize,AvgUtil,AvgUtilStdev,WeightStdev,Begins
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| 82 | features = new HashMap<String, Double>();
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| 83 |
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| 84 | int min = Integer.MAX_VALUE, max = -1, size = 1, sumSize = 0;// ,
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| 85 | // relCount
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| 86 | // = 0;
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| 87 |
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| 88 | // params 5+6+7 - Expected Utility of role, Standard deviation of
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| 89 | // Utility of role, Standard deviation of weights of role
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| 90 | double EU = 0, stdevU = 0, stdevW = 0, sW = 0, ssW = 0, countW = 0,
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| 91 | relevantEU = 0;
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| 92 | Iterator<Entry<Objective, Evaluator>> issue = ((AdditiveUtilitySpace) utilitySpace)
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| 93 | .getEvaluators().iterator();
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| 94 | List<Double> ssWList = new ArrayList<Double>();
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| 95 | while (issue.hasNext()) { // every issue
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| 96 | Entry<Objective, Evaluator> entry = issue.next();
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| 97 | Evaluator e = entry.getValue();
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| 98 | double weight = e.getWeight();
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| 99 | countW++;
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| 100 | sW += weight;
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| 101 | ssWList.add(weight);
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| 102 | double tempEU = 0, tempStdevU = 0;
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| 103 | if (e.getType() == EVALUATORTYPE.DISCRETE) {
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| 104 | Iterator<ValueDiscrete> v = ((EvaluatorDiscrete) e).getValues()
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| 105 | .iterator();
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| 106 | List<Double> s = new ArrayList<Double>();
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| 107 | double sumU = 0;
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| 108 | while (v.hasNext()) {
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| 109 | ValueDiscrete vd = v.next();
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| 110 | try {
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| 111 | double val = ((EvaluatorDiscrete) e).getEvaluation(vd);
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| 112 | s.add(val);
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| 113 | sumU += val;
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| 114 | if (opponentFirstBid > 0 && opponentFirstBid <= val) {
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| 115 | // relCount ++;
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| 116 | relevantEU += val;
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| 117 | }
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| 118 | } catch (Exception e1) {
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| 119 | // System.out.println("META-Agent IO exception: " +
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| 120 | // e1.toString());
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| 121 | }
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| 122 | }
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| 123 | int currSize = s.size();
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| 124 | min = (min > currSize) ? currSize : min;
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| 125 | max = (max < currSize) ? currSize : max;
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| 126 | sumSize += currSize;
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| 127 | size = size * currSize;
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| 128 | tempEU = sumU / currSize;
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| 129 | Iterator<Double> valIt = s.iterator();
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| 130 | while (valIt.hasNext()) {
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| 131 | tempStdevU += Math.pow(valIt.next() - tempEU, 2);
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| 132 | }
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| 133 | tempStdevU = Math.sqrt(tempStdevU / ((double) currSize - 1));
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| 134 | } else if (e.getType() == EVALUATORTYPE.INTEGER) {
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| 135 | tempEU = ((double) (((EvaluatorInteger) e).getUpperBound()
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| 136 | + ((EvaluatorInteger) e).getLowerBound())) / 2;
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| 137 | tempStdevU = Math.sqrt((Math
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| 138 | .pow(((EvaluatorInteger) e).getUpperBound() - tempEU, 2)
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| 139 | + Math.pow(
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| 140 | ((EvaluatorInteger) e).getLowerBound() - tempEU,
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| 141 | 2))
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| 142 | / 2);
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| 143 | } else if (e.getType() == EVALUATORTYPE.REAL) {
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| 144 | tempEU = (((EvaluatorReal) e).getUpperBound()
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| 145 | + ((EvaluatorReal) e).getLowerBound()) / 2;
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| 146 | tempStdevU = Math.sqrt((Math
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| 147 | .pow(((EvaluatorReal) e).getUpperBound() - tempEU, 2)
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| 148 | + Math.pow(((EvaluatorReal) e).getLowerBound() - tempEU,
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| 149 | 2))
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| 150 | / 2);
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| 151 | } else {
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| 152 | tempEU = 0.5;
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| 153 | tempStdevU = 0;
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| 154 | }
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| 155 |
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| 156 | EU += tempEU * weight;
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| 157 | stdevU += tempStdevU * weight;
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| 158 | }
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| 159 | Iterator<Double> wIt = ssWList.iterator();
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| 160 | double avgW = sW / countW;
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| 161 | double avgSize = ((double) sumSize)
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| 162 | / ((double) ((AdditiveUtilitySpace) utilitySpace)
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| 163 | .getEvaluators().size());
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| 164 |
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| 165 | while (wIt.hasNext()) {
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| 166 | ssW += Math.pow(wIt.next() - avgW, 2);
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| 167 | }
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| 168 | stdevW = countW <= 1 ? 0 : Math.sqrt(ssW / (countW - 1));
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| 169 |
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| 170 | double relsumUtility = 0, relcountUtility = 0, relstdevUtility = 0,
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| 171 | stdevUtil = 0, countbids = 0, sumbids = 0, relevantStdevU = 0;
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| 172 | ArrayList<Double> bidsUtil = new ArrayList<Double>();
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| 173 | ArrayList<Bid> bids = GetDiscreteBids();
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| 174 | for (Bid bid : bids) {
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| 175 | try {
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| 176 | bidsUtil.add(utilitySpace.getUtility(bid));
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| 177 | } catch (Exception e) {
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| 178 | e.printStackTrace();
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| 179 | }
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| 180 | }
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| 181 | for (double bidUtil : bidsUtil) {
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| 182 | stdevUtil += Math.pow(bidUtil, 2);
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| 183 | sumbids += bidUtil;
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| 184 | countbids++;
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| 185 | if (bidUtil >= opponentFirstBid) {
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| 186 | relsumUtility += bidUtil;
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| 187 | relcountUtility++;
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| 188 | relstdevUtility += Math.pow(bidUtil, 2);
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| 189 | }
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| 190 | }
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| 191 | if (relcountUtility > 0) {
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| 192 | relevantEU = relsumUtility / relcountUtility;
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| 193 | relevantStdevU = Math.sqrt((relstdevUtility / relcountUtility)
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| 194 | - Math.pow(relevantEU, 2));
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| 195 | }
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| 196 | if (countbids > 0) {
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| 197 | EU = sumbids / countbids;
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| 198 | stdevU = Math.sqrt((stdevUtil / countbids) - Math.pow(EU, 2));
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| 199 | }
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| 200 |
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| 201 | features.put("(Intercept)", 1.0);
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| 202 | features.put("UtilityOfFirstOpponentBid", opponentFirstBid); // firstBBUA
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| 203 | features.put("ReservationValue",
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| 204 | this.utilitySpace.getReservationValue()); // RV
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| 205 | features.put("DiscountFactor",
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| 206 | this.utilitySpace.getDiscountFactor() == 0 ? 1
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| 207 | : this.utilitySpace.getDiscountFactor()); // DiscountFactor
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| 208 | features.put("numOfIssues", a.size() + 0.0);
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| 209 | features.put("DomainSize", size + 0.0);
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| 210 | features.put("AvgUtil", EU);
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| 211 | features.put("AvgUtilStdev", stdevU);
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| 212 | features.put("AvgSize", avgSize);
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| 213 | features.put("WeightStdev", stdevW);
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| 214 | features.put("RelevantEU", relevantEU);
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| 215 | features.put("RelevantStdevU", relevantStdevU);
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| 216 |
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| 217 | // params[13] = first ? 1 : 0;//Begins
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| 218 |
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| 219 | }
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| 220 |
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| 221 | @Override
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| 222 | @SuppressWarnings("deprecation")
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| 223 | public Action chooseAction() {
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| 224 | try {
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| 225 | if (!agentInit) {
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| 226 | if (actionOfPartner == null) // first bid, and Meta-Agent is the
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| 227 | // first bidder (still not
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| 228 | // initialized any agent)
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| 229 | {
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| 230 | // System.out.println("actionOfPartner == null.");
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| 231 | return new Offer(this.getAgentID(),
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| 232 | utilitySpace.getMaxUtilityBid());
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| 233 | } else // second bid, or first bid as responder (and not
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| 234 | // initiator)
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| 235 | {
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| 236 | // System.out.println("actionOfPartner not null.");
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| 237 | agentInit = true;
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| 238 | if (actionOfPartner instanceof Offer) {
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| 239 | // System.out.println("actionOfPartner is Offer.");
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| 240 | opponentFirstBid = utilitySpace
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| 241 | .getUtility(((Offer) actionOfPartner).getBid());
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| 242 | }
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| 243 |
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| 244 | // initialize agent.
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| 245 | getDomainParams();
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| 246 | UpdateAllAgents();
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| 247 | manager.SetAvgUtil(
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| 248 | features.get("RelevantEU") * Math
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| 249 | .pow(utilitySpace.getDiscountFactor(), 0.5),
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| 250 | features.get("RelevantStdevU"));
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| 251 | myAgent = manager.SelectBestAgent();
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| 252 | myAgent.internalInit(this.sessionNr, this.sessionsTotal,
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| 253 | this.startTime, this.totalTime, this.timeline,
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| 254 | this.utilitySpace, this.parametervalues,
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| 255 | this.getAgentID());
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| 256 | myAgent.setName(this.getName());
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| 257 | myAgent.init();
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| 258 | // send the message that received to the new agent..
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| 259 | myAgent.ReceiveMessage(actionOfPartner);
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| 260 | }
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| 261 | }
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| 262 | Action a = myAgent.chooseAction();
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| 263 | if (a == null) {
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| 264 | return new Offer(this.getAgentID(),
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| 265 | utilitySpace.getMaxUtilityBid());
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| 266 | } else { // handle reservation value, because all agent are from
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| 267 | // Genius version 3.1 (and don't know what is
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| 268 | // reservation value)
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| 269 | // System.out.println("Action a is not null.");
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| 270 | double time = timeline.getTime();
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| 271 | if (a instanceof Offer
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| 272 | && this.utilitySpace.getReservationValueWithDiscount(
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| 273 | time) >= utilitySpace.getUtilityWithDiscount(
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| 274 | ((Offer) a).getBid(), time)) {
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| 275 | a = new EndNegotiation(getAgentID());
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| 276 | }
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| 277 |
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| 278 | }
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| 279 | return a;
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| 280 |
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| 281 | } catch (Exception e) {
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| 282 | // System.out.println("META-AGENT error in ChooseAction: " +
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| 283 | // e.toString());
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| 284 | return null;
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| 285 | }
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| 286 | }
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| 287 |
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| 288 | private void UpdateAllAgents() {
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| 289 | Set<String> agents = manager.GetAgents();
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| 290 | for (String agentName : agents) {
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| 291 | double predicted = Parser.getMean(manager.GetAgentData(agentName),
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| 292 | features);
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| 293 | manager.UpdateUtility(agentName, predicted);
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| 294 | }
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| 295 |
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| 296 | }
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| 297 |
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| 298 | @Override
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| 299 | public void ReceiveMessage(Action opponentAction) {
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| 300 | actionOfPartner = opponentAction;
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| 301 | if (agentInit)
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| 302 | myAgent.ReceiveMessage(opponentAction);
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| 303 | }
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| 304 |
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| 305 | @Override
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| 306 | public String getName() {
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| 307 | return "Meta-Agent 2013";
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| 308 | }
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| 309 |
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| 310 | @Override
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| 311 | public String getVersion() {
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| 312 | return "2.0";
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| 313 | }
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| 314 |
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| 315 | private ArrayList<Bid> GetDiscreteBids() {
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| 316 | ArrayList<Bid> bids = new ArrayList<Bid>();
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| 317 | HashMap<Integer, Value> issusesFirstValue = new HashMap<Integer, Value>();
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| 318 |
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| 319 | // initial bids list - contains only one bid.
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| 320 | for (Issue issue : utilitySpace.getDomain().getIssues()) {
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| 321 | Value v = null;
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| 322 | if (issue.getType() == ISSUETYPE.INTEGER)
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| 323 | v = new ValueInteger(((IssueInteger) issue).getLowerBound());
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| 324 | else if (issue.getType() == ISSUETYPE.REAL)
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| 325 | v = new ValueReal(((IssueReal) issue).getLowerBound());
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| 326 | else if (issue.getType() == ISSUETYPE.DISCRETE)
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| 327 | v = ((IssueDiscrete) issue).getValue(0);
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| 328 | issusesFirstValue.put(issue.getNumber(), v);
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| 329 | }
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| 330 | try {
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| 331 | bids.add(new Bid(utilitySpace.getDomain(), issusesFirstValue));
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| 332 | } catch (Exception e) {
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| 333 | return null;
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| 334 | }
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| 335 |
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| 336 | for (Issue issue : utilitySpace.getDomain().getIssues()) { // for every
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| 337 | // issue
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| 338 | ArrayList<Bid> tempBids = new ArrayList<Bid>(); // createFrom a list
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| 339 | // of
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| 340 | // bids
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| 341 | ArrayList<Value> issueValues = new ArrayList<Value>();
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| 342 | if (issue.getType() == ISSUETYPE.DISCRETE) {
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| 343 | ArrayList<ValueDiscrete> valuesD = (ArrayList<ValueDiscrete>) ((IssueDiscrete) issue)
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| 344 | .getValues(); // get
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| 345 | // list
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| 346 | // of
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| 347 | // options/values
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| 348 | // for
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| 349 | // this
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| 350 | // issue
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| 351 | for (Value v : valuesD) {
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| 352 | issueValues.add(v);
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| 353 | }
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| 354 | } else if (issue.getType() == ISSUETYPE.INTEGER) {
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| 355 | int k = Math.min(10, ((IssueInteger) issue).getUpperBound()
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| 356 | - ((IssueInteger) issue).getLowerBound());
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| 357 | for (int i = 0; i <= k; i++) {
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| 358 | ValueInteger vi = (ValueInteger) GetRepresentorOfBucket(i,
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| 359 | issue, k, true);
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| 360 | issueValues.add(vi);
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| 361 | }
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| 362 | } else if (issue.getType() == ISSUETYPE.REAL) {
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| 363 | int k = 10;
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| 364 | for (int i = 0; i <= k; i++) {
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| 365 | ValueReal vr = (ValueReal) GetRepresentorOfBucket(i, issue,
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| 366 | k, false);
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| 367 | issueValues.add(vr);
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| 368 | }
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| 369 | }
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| 370 |
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| 371 | for (Bid bid : bids) { // for each bid seen so far (init bids list)
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| 372 | for (Value value : issueValues) { // for every value
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| 373 | HashMap<Integer, Value> bidValues = new HashMap<Integer, Value>(); // make
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| 374 | // new
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| 375 | // ("empty")
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| 376 | // bid
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| 377 | // -
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| 378 | // only
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| 379 | // values.
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| 380 | for (Issue issue1 : utilitySpace.getDomain().getIssues())
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| 381 | // go over all issues
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| 382 | try {
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| 383 | bidValues.put(issue1.getNumber(),
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| 384 | bid.getValue(issue1.getNumber())); // each
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| 385 | // issue
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| 386 | // is
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| 387 | // entered
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| 388 | } catch (Exception e) {
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| 389 | e.printStackTrace();
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| 390 | }
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| 391 | bidValues.put(issue.getNumber(), value);
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| 392 | try {
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| 393 | Bid newBid = new Bid(utilitySpace.getDomain(),
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| 394 | bidValues);
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| 395 | tempBids.add(newBid);
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| 396 | } catch (Exception e) {
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|---|
| 397 | e.printStackTrace();
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|---|
| 398 | }
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|---|
| 399 | }
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|---|
| 400 | }
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|---|
| 401 | bids = tempBids;
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|---|
| 402 | }
|
|---|
| 403 | return bids;
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|---|
| 404 | }
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|---|
| 405 |
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|---|
| 406 | private Value GetRepresentorOfBucket(int bucket, Issue issue, int k,
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|---|
| 407 | boolean isInteger) {
|
|---|
| 408 | double ans = 0;
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|---|
| 409 |
|
|---|
| 410 | if (isInteger) {
|
|---|
| 411 | EvaluatorInteger ei = new EvaluatorInteger();
|
|---|
| 412 | boolean upperIsTheBest = ei.getEvaluation(
|
|---|
| 413 | ((IssueInteger) issue).getUpperBound()) > ei.getEvaluation(
|
|---|
| 414 | ((IssueInteger) issue).getLowerBound());
|
|---|
| 415 | if (upperIsTheBest) {
|
|---|
| 416 | if (bucket < k) {
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|---|
| 417 | ans = ((double) (bucket + 1)) / k;
|
|---|
| 418 | ans = ans
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|---|
| 419 | * (((IssueInteger) issue).getUpperBound()
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|---|
| 420 | - ((IssueInteger) issue).getLowerBound())
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|---|
| 421 | + ((IssueInteger) issue).getLowerBound() - 1;
|
|---|
| 422 | } else
|
|---|
| 423 | ans = ((IssueInteger) issue).getUpperBound();
|
|---|
| 424 | } else {
|
|---|
| 425 | ans = ((double) (bucket)) / k;
|
|---|
| 426 | ans = ans
|
|---|
| 427 | * (((IssueInteger) issue).getUpperBound()
|
|---|
| 428 | - ((IssueInteger) issue).getLowerBound())
|
|---|
| 429 | + ((IssueInteger) issue).getLowerBound();
|
|---|
| 430 | }
|
|---|
| 431 | return new ValueInteger((int) Math.round(ans));
|
|---|
| 432 | }
|
|---|
| 433 |
|
|---|
| 434 | EvaluatorReal ei = new EvaluatorReal();
|
|---|
| 435 | boolean upperIsTheBest = ei
|
|---|
| 436 | .getEvaluation(((IssueReal) issue).getUpperBound()) > ei
|
|---|
| 437 | .getEvaluation(((IssueReal) issue).getLowerBound());
|
|---|
| 438 | if (upperIsTheBest) {
|
|---|
| 439 | if (bucket < k) {
|
|---|
| 440 | ans = ((double) (bucket + 1)) / k;
|
|---|
| 441 | ans = ans
|
|---|
| 442 | * (((IssueReal) issue).getUpperBound()
|
|---|
| 443 | - ((IssueReal) issue).getLowerBound())
|
|---|
| 444 | + ((IssueReal) issue).getLowerBound();
|
|---|
| 445 | } else
|
|---|
| 446 | ans = ((IssueReal) issue).getUpperBound();
|
|---|
| 447 | } else {
|
|---|
| 448 | ans = ((double) (bucket)) / k;
|
|---|
| 449 | ans = ans
|
|---|
| 450 | * (((IssueReal) issue).getUpperBound()
|
|---|
| 451 | - ((IssueReal) issue).getLowerBound())
|
|---|
| 452 | + ((IssueReal) issue).getLowerBound();
|
|---|
| 453 | }
|
|---|
| 454 | return new ValueReal(ans);
|
|---|
| 455 |
|
|---|
| 456 | }
|
|---|
| 457 |
|
|---|
| 458 | @Override
|
|---|
| 459 | public SupportedNegotiationSetting getSupportedNegotiationSetting() {
|
|---|
| 460 | return SupportedNegotiationSetting.getLinearUtilitySpaceInstance();
|
|---|
| 461 | }
|
|---|
| 462 |
|
|---|
| 463 | @Override
|
|---|
| 464 | public String getDescription() {
|
|---|
| 465 | return "ANAC2013";
|
|---|
| 466 | }
|
|---|
| 467 | }
|
|---|
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