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 | }
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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) {
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408 | double ans = 0;
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409 |
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410 | if (isInteger) {
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411 | EvaluatorInteger ei = new EvaluatorInteger();
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412 | boolean upperIsTheBest = ei.getEvaluation(
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413 | ((IssueInteger) issue).getUpperBound()) > ei.getEvaluation(
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414 | ((IssueInteger) issue).getLowerBound());
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415 | if (upperIsTheBest) {
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416 | if (bucket < k) {
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417 | ans = ((double) (bucket + 1)) / k;
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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;
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422 | } else
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423 | ans = ((IssueInteger) issue).getUpperBound();
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424 | } else {
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425 | ans = ((double) (bucket)) / k;
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426 | ans = ans
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427 | * (((IssueInteger) issue).getUpperBound()
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428 | - ((IssueInteger) issue).getLowerBound())
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429 | + ((IssueInteger) issue).getLowerBound();
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430 | }
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431 | return new ValueInteger((int) Math.round(ans));
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432 | }
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433 |
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434 | EvaluatorReal ei = new EvaluatorReal();
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435 | boolean upperIsTheBest = ei
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436 | .getEvaluation(((IssueReal) issue).getUpperBound()) > ei
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437 | .getEvaluation(((IssueReal) issue).getLowerBound());
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438 | if (upperIsTheBest) {
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439 | if (bucket < k) {
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440 | ans = ((double) (bucket + 1)) / k;
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441 | ans = ans
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442 | * (((IssueReal) issue).getUpperBound()
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443 | - ((IssueReal) issue).getLowerBound())
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444 | + ((IssueReal) issue).getLowerBound();
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445 | } else
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446 | ans = ((IssueReal) issue).getUpperBound();
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447 | } else {
|
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448 | ans = ((double) (bucket)) / k;
|
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449 | ans = ans
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450 | * (((IssueReal) issue).getUpperBound()
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451 | - ((IssueReal) issue).getLowerBound())
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452 | + ((IssueReal) issue).getLowerBound();
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453 | }
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454 | return new ValueReal(ans);
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455 |
|
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456 | }
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457 |
|
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458 | @Override
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459 | public SupportedNegotiationSetting getSupportedNegotiationSetting() {
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460 | return SupportedNegotiationSetting.getLinearUtilitySpaceInstance();
|
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461 | }
|
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462 |
|
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463 | @Override
|
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464 | public String getDescription() {
|
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465 | return "ANAC2013";
|
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466 | }
|
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467 | }
|
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