[1] | 1 | package agents.anac.y2014.AgentTD;
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| 2 |
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| 3 | import java.util.HashMap;
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| 4 | import java.util.List;
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| 5 | import java.util.Random;
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| 6 |
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| 7 | import genius.core.Agent;
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| 8 | import genius.core.Bid;
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| 9 | import genius.core.actions.Accept;
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| 10 | import genius.core.actions.Action;
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| 11 | import genius.core.actions.ActionWithBid;
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| 12 | import genius.core.actions.EndNegotiation;
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| 13 | import genius.core.actions.Offer;
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| 14 | import genius.core.issue.Issue;
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| 15 | import genius.core.issue.IssueDiscrete;
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| 16 | import genius.core.issue.IssueInteger;
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| 17 | import genius.core.issue.IssueReal;
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| 18 | import genius.core.issue.Value;
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| 19 | import genius.core.issue.ValueInteger;
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| 20 | import genius.core.issue.ValueReal;
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| 21 | import genius.core.timeline.Timeline;
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| 22 |
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| 23 | public class AgentTD extends Agent {
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| 24 | private Action actionOfPartner = null;
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| 25 | private static double MINIMUM_BID_UTILITY = 0.0;
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| 26 | private Bid maximumBidFromPartner = null;
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| 27 | private Action temp_action = null;
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| 28 | private Bid temp_bid = null;
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| 29 | private static double DISCOUNT_FACTOR = 0.0;
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| 30 | private static boolean first = true;
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| 31 |
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| 32 | @Override
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| 33 | public void init() {
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| 34 | MINIMUM_BID_UTILITY = utilitySpace.getReservationValueUndiscounted();
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| 35 | DISCOUNT_FACTOR = utilitySpace.getDiscountFactor();
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| 36 | }
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| 37 |
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| 38 | @Override
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| 39 | public String getVersion() {
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| 40 | return "3.1";
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| 41 | }
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| 42 |
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| 43 | @Override
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| 44 | public String getName() {
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| 45 | return "AgentTD";
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| 46 | }
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| 47 |
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| 48 | @Override
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| 49 | public void ReceiveMessage(Action opponentAction) {
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| 50 | actionOfPartner = opponentAction;
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| 51 | }
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| 52 |
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| 53 | @Override
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| 54 | public Action chooseAction() {
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| 55 | Action action = null;
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| 56 | try {
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| 57 | if (actionOfPartner == null || first) {
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| 58 | temp_action = chooseFirstBidAction();
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| 59 | action = temp_action;
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| 60 | first = false;
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| 61 | }
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| 62 | if (actionOfPartner instanceof Offer) {
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| 63 | Bid partnerBid = ((Offer) actionOfPartner).getBid();
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| 64 | double offeredUtilFromOpponent = getUtility(partnerBid);
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| 65 | if (offeredUtilFromOpponent > MINIMUM_BID_UTILITY) {
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| 66 | MINIMUM_BID_UTILITY = offeredUtilFromOpponent;
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| 67 | }
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| 68 |
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| 69 | if (maximumBidFromPartner == null) {
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| 70 | maximumBidFromPartner = partnerBid;
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| 71 | } else {
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| 72 | if (getUtility(maximumBidFromPartner) < getUtility(
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| 73 | partnerBid))
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| 74 | maximumBidFromPartner = partnerBid;
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| 75 | }
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| 76 |
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| 77 | double time = timeline.getTime();
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| 78 | if (time < 0.95) {
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| 79 | action = chooseRandomBidAction();
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| 80 | } else {
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| 81 | action = new Offer(getAgentID(), maximumBidFromPartner);
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| 82 | }
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| 83 |
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| 84 | if (isAcceptable(offeredUtilFromOpponent, time)) {
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| 85 | action = new Accept(getAgentID(), partnerBid);
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| 86 | }
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| 87 | if (isEndNegotiation(time)) {
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| 88 | action = new EndNegotiation(getAgentID());
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| 89 | }
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| 90 |
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| 91 | }
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| 92 |
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| 93 | if (timeline.getType().equals(Timeline.Type.Time)) {
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| 94 | sleep(0.005);
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| 95 | }
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| 96 | } catch (Exception e) {
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| 97 | System.out.println("Exception in ChooseAction:" + e.getMessage());
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| 98 | action = new Accept(getAgentID(),
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| 99 | ((ActionWithBid) actionOfPartner).getBid());
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| 100 | }
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| 101 |
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| 102 | return action;
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| 103 | }
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| 104 |
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| 105 | private boolean isAcceptable(double offeredUtilFromOpponent, double time)
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| 106 | throws Exception {
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| 107 |
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| 108 | if (offeredUtilFromOpponent > getUtility(maximumBidFromPartner)) {
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| 109 | if (time < 0.7) {
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| 110 | if (offeredUtilFromOpponent > 0.85)
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| 111 | return true;
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| 112 | } else if (time < 0.98) {
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| 113 | if (offeredUtilFromOpponent > 0.75)
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| 114 | return true;
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| 115 | } else {
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| 116 | return true;
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| 117 | }
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| 118 | }
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| 119 | return false;
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| 120 | }
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| 121 |
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| 122 | private boolean isEndNegotiation(double time) throws Exception {
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| 123 | if (utilitySpace.getUtilityWithDiscount(maximumBidFromPartner,
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| 124 | time) < utilitySpace.getReservationValueWithDiscount(time))
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| 125 | return true;
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| 126 | return false;
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| 127 | }
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| 128 |
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| 129 | private Action chooseRandomBidAction() {
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| 130 | Bid nextBid = null;
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| 131 | try {
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| 132 | nextBid = getRandomBid();
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| 133 | } catch (Exception e) {
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| 134 | System.out.println("Problem with received bid:" + e.getMessage()
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| 135 | + ". cancelling bidding");
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| 136 | }
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| 137 | if (nextBid == null)
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| 138 | return (new Accept(getAgentID(),
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| 139 | ((ActionWithBid) actionOfPartner).getBid()));
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| 140 | return (new Offer(getAgentID(), nextBid));
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| 141 | }
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| 142 |
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| 143 | private Action chooseFirstBidAction() {
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| 144 | Bid nextBid = null;
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| 145 | try {
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| 146 | nextBid = getFirstBid();
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| 147 | } catch (Exception e) {
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| 148 | System.out.println("Problem with received bid:" + e.getMessage()
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| 149 | + ". cancelling bidding");
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| 150 | }
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| 151 | if (nextBid == null) {
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| 152 | return (new Accept(getAgentID(),
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| 153 | ((ActionWithBid) actionOfPartner).getBid()));
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| 154 | } else {
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| 155 | temp_bid = nextBid;
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| 156 | }
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| 157 | return (new Offer(getAgentID(), nextBid));
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| 158 | }
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| 159 |
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| 160 | private Bid getFirstBid() throws Exception {
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| 161 | HashMap<Integer, Value> values = new HashMap<Integer, Value>(); // pairs
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| 162 | // <issuenumber,chosen
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| 163 | // value
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| 164 | // string>
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| 165 | List<Issue> issues = utilitySpace.getDomain().getIssues();
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| 166 | Random randomnr = new Random();
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| 167 | Bid bid = null;
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| 168 | Bid max_bid = null;
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| 169 | double max_bid_utility = 0;
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| 170 | int count = 0;
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| 171 |
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| 172 | do {
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| 173 | for (Issue lIssue : issues) {
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| 174 | switch (lIssue.getType()) {
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| 175 | case DISCRETE:
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| 176 | IssueDiscrete lIssueDiscrete = (IssueDiscrete) lIssue;
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| 177 | int optionIndex = randomnr
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| 178 | .nextInt(lIssueDiscrete.getNumberOfValues());
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| 179 | values.put(lIssue.getNumber(),
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| 180 | lIssueDiscrete.getValue(optionIndex));
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| 181 | break;
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| 182 | case REAL:
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| 183 | IssueReal lIssueReal = (IssueReal) lIssue;
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| 184 | int optionInd = randomnr.nextInt(
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| 185 | lIssueReal.getNumberOfDiscretizationSteps() - 1);
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| 186 | values.put(lIssueReal.getNumber(), new ValueReal(lIssueReal
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| 187 | .getLowerBound()
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| 188 | + (lIssueReal.getUpperBound()
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| 189 | - lIssueReal.getLowerBound()) * (optionInd)
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| 190 | / (lIssueReal
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| 191 | .getNumberOfDiscretizationSteps())));
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| 192 | break;
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| 193 | case INTEGER:
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| 194 | IssueInteger lIssueInteger = (IssueInteger) lIssue;
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| 195 | int optionIndex2 = lIssueInteger.getLowerBound()
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| 196 | + randomnr.nextInt(lIssueInteger.getUpperBound()
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| 197 | - lIssueInteger.getLowerBound());
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| 198 | values.put(lIssueInteger.getNumber(),
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| 199 | new ValueInteger(optionIndex2));
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| 200 | break;
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| 201 | default:
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| 202 | throw new Exception("issue type " + lIssue.getType()
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| 203 | + " not supported ");
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| 204 | }
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| 205 | }
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| 206 | bid = new Bid(utilitySpace.getDomain(), values);
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| 207 | if (getUtility(bid) >= max_bid_utility) {
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| 208 | max_bid_utility = getUtility(bid);
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| 209 | max_bid = bid;
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| 210 | }
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| 211 |
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| 212 | count++;
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| 213 | } while (count < 1000000);
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| 214 | return max_bid;
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| 215 | }
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| 216 |
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| 217 | private Bid getRandomBid() throws Exception {
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| 218 | HashMap<Integer, Value> values = new HashMap<Integer, Value>();
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| 219 | List<Issue> issues = utilitySpace.getDomain().getIssues();
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| 220 | Random randomnr = new Random();
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| 221 |
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| 222 | Bid bid = null;
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| 223 | double temp = 0.0;
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| 224 | int count = 0;
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| 225 |
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| 226 | if (MINIMUM_BID_UTILITY > 0.5) {
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| 227 | temp = MINIMUM_BID_UTILITY;
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| 228 | } else {
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| 229 | temp = getUtility(temp_bid) - 0.1;
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| 230 | }
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| 231 |
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| 232 | do {
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| 233 | for (Issue lIssue : issues) {
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| 234 | switch (lIssue.getType()) {
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| 235 | case DISCRETE:
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| 236 | IssueDiscrete lIssueDiscrete = (IssueDiscrete) lIssue;
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| 237 | int optionIndex = randomnr
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| 238 | .nextInt(lIssueDiscrete.getNumberOfValues());
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| 239 | values.put(lIssue.getNumber(),
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| 240 | lIssueDiscrete.getValue(optionIndex));
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| 241 | break;
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| 242 | case REAL:
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| 243 | IssueReal lIssueReal = (IssueReal) lIssue;
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| 244 | int optionInd = randomnr.nextInt(
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| 245 | lIssueReal.getNumberOfDiscretizationSteps() - 1);
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| 246 | values.put(lIssueReal.getNumber(), new ValueReal(lIssueReal
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| 247 | .getLowerBound()
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| 248 | + (lIssueReal.getUpperBound()
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| 249 | - lIssueReal.getLowerBound()) * (optionInd)
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| 250 | / (lIssueReal
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| 251 | .getNumberOfDiscretizationSteps())));
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| 252 | break;
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| 253 | case INTEGER:
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| 254 | IssueInteger lIssueInteger = (IssueInteger) lIssue;
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| 255 | int optionIndex2 = lIssueInteger.getLowerBound()
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| 256 | + randomnr.nextInt(lIssueInteger.getUpperBound()
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| 257 | - lIssueInteger.getLowerBound());
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| 258 | values.put(lIssueInteger.getNumber(),
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| 259 | new ValueInteger(optionIndex2));
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| 260 | break;
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| 261 | default:
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| 262 | throw new Exception("issue type " + lIssue.getType()
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| 263 | + " not supported ");
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| 264 | }
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| 265 | }
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| 266 | bid = new Bid(utilitySpace.getDomain(), values);
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| 267 | } while (getUtility(bid) < temp);
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| 268 | return bid;
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| 269 | }
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| 270 |
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| 271 | double sq(double x) {
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| 272 | return x * x;
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| 273 | }
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| 274 |
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| 275 | @Override
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| 276 | public String getDescription() {
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| 277 | return "ANAC2014 compatible with non-linear utility spaces";
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| 278 | }
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| 279 | }
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