[1] | 1 | package agents.anac.y2017.gin;
|
---|
| 2 |
|
---|
[46] | 3 | import java.util.List;
|
---|
| 4 |
|
---|
[1] | 5 | import java.util.ArrayList;
|
---|
| 6 | import java.util.Collections;
|
---|
| 7 | import java.util.Comparator;
|
---|
| 8 | import java.util.HashMap;
|
---|
| 9 | import java.util.Map.Entry;
|
---|
| 10 |
|
---|
| 11 | import genius.core.AgentID;
|
---|
| 12 | import genius.core.Bid;
|
---|
| 13 | import genius.core.actions.Accept;
|
---|
| 14 | import genius.core.actions.Action;
|
---|
| 15 | import genius.core.actions.Offer;
|
---|
| 16 | import genius.core.issue.Value;
|
---|
| 17 | import genius.core.parties.AbstractNegotiationParty;
|
---|
| 18 | import genius.core.parties.NegotiationInfo;
|
---|
| 19 | import genius.core.persistent.StandardInfo;
|
---|
| 20 | import genius.core.persistent.StandardInfoList;
|
---|
| 21 |
|
---|
| 22 | /**
|
---|
| 23 | * Agent Name: Gin. Team members: Jin Tanda. Affiliation: Nagoya Institute of
|
---|
| 24 | * Technology, Takayuki Ito. Laboratory Contact person: Jin Tanda. Contact
|
---|
| 25 | * E-mail: tanda.jin@itolab.nitech.ac.jp
|
---|
| 26 | */
|
---|
| 27 | public class Gin extends AbstractNegotiationParty {
|
---|
| 28 |
|
---|
| 29 | private Bid lastReceivedBid = null;
|
---|
| 30 | private NegotiationInfo info = null;
|
---|
| 31 | private StandardInfoList history;
|
---|
| 32 | private int fitToOpponent = 0;
|
---|
| 33 |
|
---|
| 34 | @Override
|
---|
| 35 | public void init(NegotiationInfo info) {
|
---|
| 36 |
|
---|
| 37 | super.init(info);
|
---|
| 38 |
|
---|
| 39 | System.out.println("Discount Factor is "
|
---|
[46] | 40 | + getUtilitySpace().getDiscountFactor());
|
---|
[1] | 41 | System.out.println("Reservation Value is "
|
---|
[46] | 42 | + getUtilitySpace().getReservationValueUndiscounted());
|
---|
[1] | 43 | // if you need to initialize some variables, please initialize them
|
---|
| 44 | // below
|
---|
| 45 | this.info = info;
|
---|
| 46 | initBidTable(); // 論点数に応じたhashmapによるデータ構造を定義
|
---|
| 47 | checkOpponentConcessions();
|
---|
| 48 | }
|
---|
| 49 |
|
---|
| 50 | /**
|
---|
| 51 | * Each round this method gets called and ask you to accept or offer. The
|
---|
| 52 | * first party in the first round is a bit different, it can only propose an
|
---|
| 53 | * offer.
|
---|
| 54 | *
|
---|
| 55 | * @param validActions
|
---|
| 56 | * Either a list containing both accept and offer or only offer.
|
---|
| 57 | * @return The chosen action.
|
---|
| 58 | */
|
---|
| 59 | @Override
|
---|
| 60 | public Action chooseAction(List<Class<? extends Action>> validActions) {
|
---|
| 61 | double myUtil = 0;
|
---|
| 62 | double threshold = 1;
|
---|
| 63 | boolean reservationPriceFlag = false;
|
---|
| 64 | Bid bid = null;
|
---|
| 65 | if (lastReceivedBid != null)
|
---|
| 66 | myUtil = utilitySpace.getUtility(lastReceivedBid);
|
---|
| 67 | threshold = concessionsFunction();
|
---|
| 68 | double reservationPrice = utilitySpace
|
---|
| 69 | .getReservationValueUndiscounted();
|
---|
| 70 | if (threshold < reservationPrice)
|
---|
| 71 | reservationPriceFlag = true;
|
---|
| 72 | else
|
---|
| 73 | reservationPriceFlag = false;
|
---|
| 74 | // if we are the first party, offer.
|
---|
| 75 | if ((lastReceivedBid == null || !validActions.contains(Accept.class)
|
---|
| 76 | || myUtil < threshold) && reservationPriceFlag == false) {
|
---|
| 77 | if (lastReceivedBid == null || info.getTimeline().getTime() < 0.3) {
|
---|
| 78 | while (myUtil < concessionsFunction()) {
|
---|
| 79 | bid = generateRandomBid();
|
---|
| 80 | myUtil = utilitySpace.getUtility(bid);
|
---|
| 81 | }
|
---|
| 82 | } else
|
---|
| 83 | bid = generateMyBidFromTable();
|
---|
| 84 | return new Offer(getPartyId(), bid);
|
---|
| 85 | } else {
|
---|
| 86 | // printTable();
|
---|
| 87 | return new Accept(getPartyId(), lastReceivedBid);
|
---|
| 88 | }
|
---|
| 89 | }
|
---|
| 90 |
|
---|
| 91 | private void checkOpponentConcessions() {
|
---|
| 92 | history = (StandardInfoList) getData().get();
|
---|
| 93 | if (!history.isEmpty()) {
|
---|
| 94 | int cnt = 0;
|
---|
| 95 | for (StandardInfo si : history) {
|
---|
| 96 | if (si.getAgreement().get1() == null) {
|
---|
| 97 | cnt++;
|
---|
| 98 | }
|
---|
| 99 | }
|
---|
| 100 | if (((float) cnt / (float) history.size()) > 0.4) {
|
---|
| 101 | // 3者間の交渉が過去情報から参照してうまくいっていない時
|
---|
| 102 | // 自身の譲歩関数を定義し直す
|
---|
| 103 | fitToOpponent = 2;
|
---|
| 104 | } else if (((float) cnt / (float) history.size()) > 0.2) {
|
---|
| 105 | fitToOpponent = 1;
|
---|
| 106 | } else
|
---|
| 107 | fitToOpponent = 0;
|
---|
| 108 | }
|
---|
| 109 | }
|
---|
| 110 |
|
---|
| 111 | private Bid generateMyBidFromTable() {
|
---|
| 112 | Bid myBid = generateRandomBid();
|
---|
| 113 | // 各論点において、bidを頻出順にソート
|
---|
| 114 | List<List<Entry<Value, Integer>>> lists = new ArrayList<List<Entry<Value, Integer>>>();
|
---|
| 115 | for (int i = 0; i < bidTable.length; i++) {
|
---|
| 116 | List<Entry<Value, Integer>> list_entries = new ArrayList<Entry<Value, Integer>>(
|
---|
| 117 | bidTable[i].entrySet());
|
---|
| 118 | // 比較関数Comparatorを使用してMap.Entryの値を比較する(降順)
|
---|
| 119 | Collections.sort(list_entries,
|
---|
| 120 | new Comparator<Entry<Value, Integer>>() {
|
---|
| 121 | // compareを使用して値を比較する
|
---|
| 122 | @Override
|
---|
| 123 | public int compare(Entry<Value, Integer> obj1,
|
---|
| 124 | Entry<Value, Integer> obj2) {
|
---|
| 125 | // 降順
|
---|
| 126 | return obj2.getValue().compareTo(obj1.getValue());
|
---|
| 127 | }
|
---|
| 128 | });
|
---|
| 129 | lists.add(list_entries);
|
---|
| 130 | }
|
---|
| 131 | // 3者間における最良のものを寄せ集めたbid候補でbidを初期化
|
---|
| 132 | for (int i = 0; i < lists.size(); i++) {
|
---|
| 133 | Value candidate = lists.get(i).get(0).getKey();
|
---|
| 134 | myBid = myBid.putValue(i + 1, candidate);
|
---|
| 135 | }
|
---|
| 136 | // 各論点をtableを元に一つずつ変更し、myUtilの値に応じてループ
|
---|
| 137 | int maxLoop = 1000;
|
---|
| 138 | int cnt = 0;
|
---|
| 139 | double permissionRange;
|
---|
| 140 | while (utilitySpace.getUtility(myBid) < concessionsFunction()) {
|
---|
| 141 | if (cnt > maxLoop) {
|
---|
| 142 | double myUtil = utilitySpace.getUtility(myBid);
|
---|
| 143 | while (myUtil < concessionsFunction()) {
|
---|
| 144 | myBid = generateRandomBid();
|
---|
| 145 | myUtil = utilitySpace.getUtility(myBid);
|
---|
| 146 | }
|
---|
| 147 | // System.out.println("強制的にbidを決定します");
|
---|
| 148 | break;
|
---|
| 149 | }
|
---|
| 150 | for (int i = 0; i < lists.size(); i++) {
|
---|
| 151 | List<Entry<Value, Integer>> issue = lists.get(i);
|
---|
| 152 | permissionRange = ((double) cnt / (double) (maxLoop + 1))
|
---|
| 153 | * (issue.size());
|
---|
| 154 | // System.out.println("cnt:issue.size() = " + cnt + " " +
|
---|
| 155 | // issue.size());
|
---|
| 156 | // System.out.println("permissionRange = " + permissionRange);
|
---|
| 157 | Value value = issue.get((int) (Math.random() * permissionRange))
|
---|
| 158 | .getKey();
|
---|
| 159 | myBid = myBid.putValue(i + 1, value);
|
---|
| 160 | // System.out.println("myBid = " + myBid);
|
---|
| 161 | // System.out.println("Utility = " +
|
---|
| 162 | // utilitySpace.getUtility(myBid));
|
---|
| 163 | if (utilitySpace.getUtility(myBid) > concessionsFunction())
|
---|
| 164 | break;
|
---|
| 165 | }
|
---|
| 166 | cnt++;
|
---|
| 167 | }
|
---|
| 168 | // System.out.println("Gin's Bid = " + myBid);
|
---|
| 169 | double time = info.getTimeline().getTime();
|
---|
| 170 | if (time > 0.98) {
|
---|
| 171 | for (StandardInfo si : history) {
|
---|
| 172 | if (si.getAgreement() != null) {
|
---|
| 173 | myBid = si.getAgreement().get1();
|
---|
| 174 | // System.out.println("getAgreementBid = " + myBid);
|
---|
| 175 | }
|
---|
| 176 | }
|
---|
| 177 | }
|
---|
| 178 | return myBid;
|
---|
| 179 | }
|
---|
| 180 |
|
---|
| 181 | private double concessionsFunction() {
|
---|
| 182 | double time = info.getTimeline().getTime(); // 全体時間(round)に対する正規化された時間:0-1
|
---|
| 183 | double fx = 0;
|
---|
| 184 | // System.out.println("fitToOpponent = " + fitToOpponent);
|
---|
| 185 | if (fitToOpponent == 0) {
|
---|
| 186 | if (time < 0.85)
|
---|
| 187 | fx = 0.9;
|
---|
| 188 | else if (time < 0.95)
|
---|
| 189 | fx = 0.88;
|
---|
| 190 | else
|
---|
| 191 | fx = 0.80;
|
---|
| 192 | } else if (fitToOpponent == 1) {
|
---|
| 193 | if (time < 0.85)
|
---|
| 194 | fx = 0.95 - (time / 3.0);
|
---|
| 195 | else if (time < 0.95)
|
---|
| 196 | fx = 0.8;
|
---|
| 197 | else
|
---|
| 198 | fx = 0.7;
|
---|
| 199 | } else {
|
---|
| 200 | if (time < 0.7) {
|
---|
| 201 | fx = 0.95 - (time / 3.0);
|
---|
| 202 | } else {
|
---|
| 203 | fx = 0.5;
|
---|
| 204 | }
|
---|
| 205 | }
|
---|
| 206 | return fx;
|
---|
| 207 | }
|
---|
| 208 |
|
---|
| 209 | // 三者間における頻出bid格納テーブルを表示
|
---|
| 210 | private void printTable() {
|
---|
| 211 | for (int i = 0; i < bidTable.length; i++) {
|
---|
| 212 | System.out.println("bidTable[" + i + "]" + ":" + bidTable[i]);
|
---|
| 213 | }
|
---|
| 214 | }
|
---|
| 215 |
|
---|
| 216 | // 三者間における頻出bid格納テーブルを初期化
|
---|
| 217 | private HashMap[] bidTable;
|
---|
| 218 |
|
---|
| 219 | private void initBidTable() {
|
---|
| 220 | int issueNum = generateRandomBid().getIssues().size();
|
---|
| 221 | bidTable = new HashMap[issueNum];
|
---|
| 222 | for (int i = 0; i < issueNum; i++) {
|
---|
| 223 | bidTable[i] = new HashMap<Value, Integer>();
|
---|
| 224 | }
|
---|
| 225 | }
|
---|
| 226 |
|
---|
| 227 | // 三者間における頻出bid格納テーブルを更新
|
---|
| 228 | private void updateOurTable(Bid bid) {
|
---|
| 229 | Value key = null;
|
---|
| 230 | int value = 1;
|
---|
| 231 | for (int i = 0; i < bid.getIssues().size(); i++) {
|
---|
| 232 | key = bid.getValue(i + 1);
|
---|
| 233 | if (bidTable[i].get(key) != null) {
|
---|
| 234 | value = (int) bidTable[i].get(key) + 1;
|
---|
| 235 | }
|
---|
| 236 | bidTable[i].put(key, value);
|
---|
| 237 | }
|
---|
| 238 | return;
|
---|
| 239 | }
|
---|
| 240 |
|
---|
| 241 | /**
|
---|
| 242 | * All offers proposed by the other parties will be received as a message.
|
---|
| 243 | * You can use this information to your advantage, for example to predict
|
---|
| 244 | * their utility.
|
---|
| 245 | *
|
---|
| 246 | * @param sender
|
---|
| 247 | * The party that did the action. Can be null.
|
---|
| 248 | * @param action
|
---|
| 249 | * The action that party did.
|
---|
| 250 | */
|
---|
| 251 | @Override
|
---|
| 252 | public void receiveMessage(AgentID sender, Action action) {
|
---|
| 253 | super.receiveMessage(sender, action);
|
---|
| 254 | if (action instanceof Offer) {
|
---|
| 255 | lastReceivedBid = ((Offer) action).getBid();
|
---|
| 256 | updateOurTable(lastReceivedBid);
|
---|
| 257 | // System.out.println("getBid,name = " + sender + " , "+
|
---|
| 258 | // lastReceivedBid);
|
---|
| 259 | }
|
---|
| 260 | }
|
---|
| 261 |
|
---|
| 262 | @Override
|
---|
| 263 | public String getDescription() {
|
---|
| 264 | return "ANAC2017";
|
---|
| 265 | }
|
---|
| 266 |
|
---|
| 267 | }
|
---|