[200] | 1 | package agents.anac.y2019.harddealer;
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| 2 |
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| 3 | import java.util.ArrayList;
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| 4 | import java.util.HashSet;
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| 5 | import java.util.List;
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| 6 | import java.util.Map;
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| 7 | import java.util.Random;
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| 8 | import java.util.Set;
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| 9 |
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| 10 | import genius.core.bidding.BidDetails;
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| 11 | import genius.core.boaframework.BOAparameter;
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| 12 | import genius.core.boaframework.NegotiationSession;
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| 13 | import genius.core.boaframework.OMStrategy;
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| 14 | import genius.core.boaframework.OpponentModel;
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| 15 |
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| 16 | /**
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| 17 | * This implementation is based on the code provided in the Boaexamples directory. Specifically the code of BestBid has been used and altered.
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| 18 | * @author svenhendrikx
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| 19 | *
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| 20 | */
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| 21 | public class HardDealer_OMS extends OMStrategy {
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| 22 |
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| 23 | double updateThreshold = 1.1;
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| 24 |
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| 25 | @Override
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| 26 | public void init(NegotiationSession negotiationSession, OpponentModel model, Map<String, Double> parameters) {
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| 27 | super.init(negotiationSession, model, parameters);
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| 28 | if (parameters.get("t") != null) {
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| 29 | updateThreshold = parameters.get("t").doubleValue();
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| 30 | } else {
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| 31 | System.out.println("OMStrategy assumed t = 1.1");
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| 32 | }
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| 33 | }
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| 34 |
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| 35 | @Override
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| 36 | public BidDetails getBid(List<BidDetails> allBids) {
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| 37 | if (allBids.size() == 1) {
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| 38 | return allBids.get(0);
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| 39 | }
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| 40 |
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| 41 | // Check if the model is working, i.e. not returning only zeroes.
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| 42 | boolean allWereZero = true;
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| 43 |
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| 44 | // Will contain x best bids
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| 45 | List<BidDetails> bestbids = new ArrayList<BidDetails>();
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| 46 | for (BidDetails bid : allBids) {
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| 47 |
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| 48 | double evaluation = model.getBidEvaluation(bid.getBid());
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| 49 |
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| 50 | // model works
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| 51 | if (evaluation > 0.0001)
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| 52 | {
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| 53 | allWereZero = false;
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| 54 | }
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| 55 |
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| 56 | // bestbids's allowed size will decrease during negotiation. For more info, see OMstrategy part in report
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| 57 | if (bestbids.size() < (int)(5 * (1 - negotiationSession.getTime())) + 1)
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| 58 | {
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| 59 | bestbids.add(bid);
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| 60 | }
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| 61 | else
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| 62 | {
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| 63 | // Find the five best bids according to the opponent model
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| 64 | bestbids.sort(new SortBidsOpponent(model));
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| 65 |
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| 66 | if (model.getBidEvaluation(bestbids.get(0).getBid()) < evaluation)
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| 67 | bestbids.set(0, bid);
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| 68 | }
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| 69 |
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| 70 | }
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| 71 |
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| 72 | // 4. The opponent model did not work, therefore, offer a random bid.
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| 73 | if (allWereZero) {
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| 74 | Random r = new Random();
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| 75 | return allBids.get(r.nextInt(allBids.size()));
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| 76 | }
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| 77 |
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| 78 |
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| 79 | bestbids.sort(new SortBids());
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| 80 | // Find the best bid from the bids the opponent model selected.
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| 81 | BidDetails myBid = bestbids.get(bestbids.size() - 1);
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| 82 |
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| 83 | if (negotiationSession.getOpponentBidHistory().isEmpty())
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| 84 | {
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| 85 | return myBid;
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| 86 | }
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| 87 | else
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| 88 | {
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| 89 | // If the opponent has offered something before with a better utility than our current selected bid, return their best bid.
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| 90 | BidDetails theirBestBid = negotiationSession.getOpponentBidHistory().getBestBidDetails();
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| 91 |
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| 92 | if (myBid.getMyUndiscountedUtil() >= theirBestBid.getMyUndiscountedUtil())
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| 93 | {
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| 94 | return myBid;
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| 95 | }
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| 96 | else
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| 97 | {
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| 98 | return theirBestBid;
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| 99 | }
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| 100 | }
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| 101 |
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| 102 |
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| 103 | }
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| 104 |
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| 105 | @Override
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| 106 | public boolean canUpdateOM() {
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| 107 | return negotiationSession.getTime() < updateThreshold;
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| 108 | }
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| 109 |
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| 110 | @Override
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| 111 | public Set<BOAparameter> getParameterSpec() {
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| 112 | Set<BOAparameter> set = new HashSet<BOAparameter>();
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| 113 | set.add(new BOAparameter("t", 1.1, "Time after which the OM should not be updated"));
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| 114 | return set;
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| 115 | }
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| 116 |
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| 117 | @Override
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| 118 | public String getName() {
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| 119 | return "HardDealer_OMS";
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| 120 | }
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| 121 |
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| 122 | }
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