[1] | 1 | package geniusweb.blingbling;
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| 2 |
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| 3 | import java.math.BigInteger;
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| 4 | import java.util.HashMap;
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| 5 | import java.util.Map;
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| 6 |
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| 7 | import geniusweb.issuevalue.Bid;
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| 8 | import geniusweb.issuevalue.Value;
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| 9 | import geniusweb.issuevalue.DiscreteValueSet;
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| 10 | import geniusweb.issuevalue.ValueSet;
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| 11 |
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| 12 | //
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| 13 | //Old represent is the orignial SFM model.
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| 14 |
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| 15 | public class IssueTracker {
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| 16 | private String issue;
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| 17 | private int numValues;
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| 18 | private int seenValues = 0;
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| 19 |
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| 20 | private Map<Value, ValueTracker> valueTrackers = new HashMap<Value, ValueTracker>();
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| 21 | private Value maxValue = null;
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| 22 | private DiscreteValueSet valueset = null;
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| 23 | private int maxValueCount = 0;
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| 24 |
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| 25 | private double weight = 0.0;
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| 26 |
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| 27 | public IssueTracker(String issuename, ValueSet valueset) {
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| 28 | // if (valueset instanceof DiscreteValueSet)
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| 29 | // throw new RuntimeException("Opponent model is designed for discrete issues only");
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| 30 |
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| 31 | this.issue = issuename;
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| 32 | this.valueset = (DiscreteValueSet) valueset;
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| 33 | this.numValues = Integer.valueOf(this.valueset.size().toString());//transfer biginteger to int
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| 34 | }
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| 35 |
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| 36 | public void registerValue(Value value, int bidsReceived) {//bidsReceived指的是收到的bid的总长度。
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| 37 | // create value tracker if needed
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| 38 | if (valueTrackers.get(value) == null) {
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| 39 | valueTrackers.put(value, new ValueTracker());
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| 40 | seenValues++;
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| 41 | }
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| 42 |
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| 43 | // register max offered value with count
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| 44 | int valueCount = valueTrackers.get(value).incrementGet();
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| 45 | if (valueCount > maxValueCount) {
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| 46 | maxValueCount = valueCount;
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| 47 | maxValue = value;
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| 48 | }
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| 49 |
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| 50 | // update issue weight
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| 51 | if (numValues > 1) {
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| 52 | double equalShares = ((double) bidsReceived / (double) numValues);
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| 53 | weight = ((double) maxValueCount - equalShares) / ((double) bidsReceived - equalShares);
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| 54 | }
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| 55 |
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| 56 | // update all value evaluations
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| 57 | for (ValueTracker valueTracker : valueTrackers.values())
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| 58 | valueTracker.updateEvaluation(maxValueCount, weight);
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| 59 | }
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| 60 |
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| 61 | public double getEvaluationOld(Value value) {//原SFM的eval
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| 62 | return (valueTrackers.get(value) == null) ? 0.0
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| 63 | : ((double) valueTrackers.get(value).getCount() / (double) maxValueCount);
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| 64 | }
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| 65 |
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| 66 | public double getEvaluation(Value value) {
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| 67 | return (valueTrackers.get(value) == null) ? 0.0 : valueTrackers.get(value).getEvaluation();
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| 68 | }
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| 69 |
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| 70 | public double getWeight() {
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| 71 | return weight;
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| 72 | }
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| 73 |
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| 74 | public double getOldWeight(int bidsReceived) {
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| 75 | return (bidsReceived == 0) ? 0.0 : (double) maxValueCount / (double) bidsReceived;
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| 76 | }
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| 77 |
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| 78 | public Value getMaxValue() {
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| 79 | return maxValue;
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| 80 | }
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| 81 |
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| 82 | public String toString() {
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| 83 | return issue.toString() + ":\n" + valueTrackers.toString() + "\n";
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| 84 | }
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| 85 | } |
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