source: anac2020/BlingBling/src/main/java/geniusweb/blingbling/MyProfile.java@ 14

Last change on this file since 14 was 1, checked in by wouter, 4 years ago

#1910 added anac2020 parties
File size: 9.6 KB
Line 
1package geniusweb.blingbling;
2
3import java.math.BigInteger;
4import java.util.ArrayList;
5import java.util.Arrays;
6import java.util.Collections;
7import java.util.Comparator;
8import java.util.HashMap;
9import java.util.HashSet;
10import java.util.List;
11import java.util.Set;
12
13import geniusweb.bidspace.AllBidsList;
14import geniusweb.blingbling.Ranknet.Layer;
15import geniusweb.blingbling.Ranknet.NeuralRankNet;
16import geniusweb.blingbling.Ranknet.SigmoidActivationFunction;
17import geniusweb.issuevalue.Bid;
18import geniusweb.issuevalue.Domain;
19import geniusweb.issuevalue.Value;
20import geniusweb.profile.DefaultPartialOrdering;
21import geniusweb.profile.Profile;
22
23import org.neuroph.core.NeuralNetwork;
24import org.neuroph.core.data.DataSet;
25import org.neuroph.core.data.DataSetRow;
26import org.neuroph.core.learning.LearningRule;
27import org.neuroph.util.TransferFunctionType;
28
29import geniusweb.blingbling.Ranknet4j.Ranknet;
30import geniusweb.blingbling.Ranknet4j.BackPropagation;
31
32public class MyProfile {
33 //model param
34 private Ranknet ann;
35 private DataSet dataset;
36 //these params can be set via the Strategy entry
37 private double LearningRate = 0.0025;
38 private int Epoch = 3000;
39 private int inputcount = 0;
40 private int hiddencount = 30;
41
42 //negotiation param
43 private Domain domain;
44 private List<Bid> bidlist = new ArrayList<>();
45 private AllBidsList allbid;
46 private Bid reservationbid;
47 private Bid maxBid;
48 private Bid minBid;
49 private HashMap<Bid, Double> AllUtilityMap = new HashMap<Bid, Double>();
50 private HashMap<String, HashMap<Value, Integer>> valuePosition = new HashMap<String, HashMap<Value, Integer>>();
51
52 //for elicit compare
53 private HashMap<String, HashMap<Value, Integer>> valuefrequency = new HashMap<String, HashMap<Value, Integer>>();//new？or null?
54
55 public MyProfile(Profile profile, int epoch, double learningrate) {
56 DefaultPartialOrdering prof = (DefaultPartialOrdering) profile;
57
58 this.LearningRate = learningrate;
59 this.Epoch = epoch;
60 this.domain = prof.getDomain();
61 this.bidlist = prof.getBids();//the partial info bid
62 this.reservationbid = prof.getReservationBid();
63 this.allbid = new AllBidsList(domain);
64
65 //get input size.
66 for (String issue: domain.getIssues()) {
67 int num = domain.getValues(issue).size().intValue();
68 inputcount = inputcount+num;
69 }
70 hiddencount = inputcount*2;
71 this.ann = new Ranknet(TransferFunctionType.SIGMOID, inputcount, hiddencount, 1);
72 this.dataset = new DataSet(inputcount*2, 1);
73
74// if (true) {
75// throw new RuntimeException("ttt done"+ inputcount);
76// }
77 setvaluefrequency(bidlist);
78 getValueind();
79 constructdata(profile);
80 train(dataset, Epoch, LearningRate);
81 }
82
83
84 public void constructdata(Profile profile) {
85 DefaultPartialOrdering prof = (DefaultPartialOrdering) profile;
86 double[] output = new double[1];
87 output[0] = 1.0;
88 for(int i = 0; i < bidlist.size(); i++) {
89 for (int j = i+1; j < bidlist.size(); j++) {
90 Bid bid1 = bidlist.get(i);
91 Bid bid2 = bidlist.get(j);
92
93 if(prof.isPreferredOrEqual(bid1, bid2)) {
94 double[] data1 = new double[inputcount*2];
95 for (int ind=0; ind<inputcount*2; ind++) {
96 if (ind<inputcount) {
97 data1[ind] = bidtoVector(bid1)[ind];
98 }else {
99 data1[ind] = bidtoVector(bid2)[ind-inputcount];
100 }
101 }
102 dataset.add(data1, output);
103 }
104 if (prof.isPreferredOrEqual(bid2, bid1)) {
105 double[] data2 = new double[inputcount*2];
106 for (int ind=0; ind<inputcount*2; ind++) {
107 if (ind<inputcount) {
108 data2[ind] = bidtoVector(bid2)[ind];
109 }else {
110 data2[ind] = bidtoVector(bid1)[ind-inputcount];
111 }
112 }
113 dataset.add(data2, output);
114 }
115 }
116 }
117// return null;
118 }
119
120 public void getValueind() {//get the input position of a value
121
122 int valueind = 0;
123 for(String issue: domain.getIssues()) {
124 HashMap<Value, Integer> temp = new HashMap<Value, Integer>();
125 for (Value value: domain.getValues(issue)) {
126 temp.put(value, valueind);
127 valuePosition.put(issue, temp);
128 valueind ++;
129 }
130 }
131 }
132
133 public double[] bidtoVector(Bid bid) {//input the bid, return a double[] vector.
134
135 double[] features = new double[inputcount];
136 for (int i =0; i<inputcount; i++) {
137 features[i]=0.0;
138 }
139 for (String issue: domain.getIssues()) {
140 Value v = bid.getValue(issue);
141 int valuepos = valuePosition.get(issue).get(v);
142 features[valuepos] = 1.0;
143 }
144// features.putScalar(row, col, value)
145 return features;
146 }
147
148
149 public void train(DataSet ds, int epoch, double lr) {
150
151 BackPropagation bp = new BackPropagation();
152 bp.setMaxIterations(epoch);
153 bp.setLearningRate(lr);
154 ann.setLearningRule(bp);
155 ds.shuffle();
156 ann.learn(ds);
157 getSorted(allbid);
158 }
159
160 public void subtrain(int epoch, double lr) {
161 train(dataset, epoch, lr);
162 }
163
164
165 public double getUtility(Bid bid) {
166 //get the utility from the model.
167 double[] bidvec = bidtoVector(bid);
168 ann.setInput(bidvec);
169 ann.calculate();
170 return ann.getOutput()[0];
171 }
172
173 public double getRankUtility(Bid bid) {
174 return AllUtilityMap.get(bid);
175 }
176
177 public void getSorted(AllBidsList allbids) {
178 long spacesize = allbids.size().intValue();
179 List<Bid> allbidlist = new ArrayList<Bid>();
180 for (int n = 0; n< spacesize; n++) {
181 Bid bid = allbids.get(BigInteger.valueOf(n));
182 allbidlist.add(bid);
183 }
184 Collections.sort(allbidlist, new Comparator<Bid>() {
185 public int compare(Bid b1, Bid b2) {
186 return getUtility(b1)>=getUtility(b2) ? -1 : 1; //descending order
187 }
188 });
189
190 for (double n=0.0; n<allbidlist.size(); n++) {
191 Bid bid = allbidlist.get((int) n);
192 double utility = (double)(allbidlist.size()-n)/allbidlist.size();
193 AllUtilityMap.put(bid, utility);
194 }
195
196 }
197
198 public void setvaluefrequency(List<Bid> inbidlist) {//init and update the valuefrequency.
199// Set<Bid> inbidset = new HashSet<Bid>(inbidlist);
200 //init valuefrequency map
201 if (valuefrequency.isEmpty()) {
202 for (String issue: domain.getIssues()) {
203 HashMap<Value, Integer> temp = new HashMap<Value, Integer>();
204 for(Value value: domain.getValues(issue)) {
205 temp.put(value, 0);
206 }
207 valuefrequency.put(issue, temp);
208 }
209 }
210
211 for (Bid bid: inbidlist) {
212 for (String issue: bid.getIssues()) {
213 Value v = bid.getValue(issue);
214 HashMap<Value, Integer> temp = valuefrequency.get(issue);
215 int cnt = temp.get(v);
216 temp.put(v, cnt+1);
217 valuefrequency.put(issue, temp);
218 }
219 }
220 }
221
222 public HashMap<String, List<Value>> getmostinformative(){//return a map contains the
223
224 HashMap<String, List<Value>> infovalue = new HashMap<String, List<Value>>();
225 for (String issue : domain.getIssues()) {
226 List<Value> elicitvalueset = new ArrayList<Value>();
227 int minfreq = 0;
228 for (Value value: domain.getValues(issue)) {
229 int freq = valuefrequency.get(issue).get(value);
230 if (elicitvalueset.isEmpty()) {
231 elicitvalueset.add(value);
232 minfreq = freq;
233 }else {
234 if (freq<minfreq) {
235 elicitvalueset.clear();
236 elicitvalueset.add(value);
237 }else if(freq == minfreq) {
238 elicitvalueset.add(value);
239 }
240 }
241 }
242 infovalue.put(issue, elicitvalueset);
243
244 }
245 return infovalue;
246 }
247
248 public List<Bid> getElicitBid() {
249 //find the most informative value of every issue.
250 HashMap<String, List<Value>> infomap = getmostinformative();
251 HashMap<String, Value> bidmap = new HashMap<String, Value>();
252 List<Bid> bidresult = new ArrayList<Bid>();
253 bidDFS(new ArrayList<String>(infomap.keySet()), bidmap, infomap, bidresult);
254 return bidresult;
255 }
256
257 public void bidDFS(List<String> issues, HashMap<String, Value> bidmap, HashMap<String, List<Value>> infomap, List<Bid> bidresultlist) {
258 if (bidmap.keySet().size() == issues.size()) {
259 bidresultlist.add(new Bid(bidmap));
260 return;
261 }
262
263 for (Value value: infomap.get(issues.get(bidmap.size()))) {
264 bidmap.put(issues.get(bidmap.size()), value);
265 bidDFS(issues, bidmap, infomap, bidresultlist);
266 bidmap.remove(issues.get(bidmap.size()-1));
267 }
268 }
269
270 public void update(Bid bid, List<Bid> betterBids, List<Bid> worseBids) {
271 updateDataset(bid, betterBids, worseBids);
272 updateBidAndValueFrequency(bid);
273 train(dataset, Epoch, LearningRate);
274 }
275
276 public void updateDataset(Bid bid, List<Bid> betterBids, List<Bid> worseBids) {
277 double[] output = new double[1];
278 output[0] = 1.0;
279 for (int i=0; i< betterBids.size(); i++) {
280 Bid betterbid = betterBids.get(i);
281 double[] data = new double[inputcount*2];
282 for (int ind=0; ind<inputcount*2; ind++) {
283 if (ind< inputcount) {
284 data[ind] = bidtoVector(betterbid)[ind];
285 }else {
286 data[ind] = bidtoVector(bid)[ind-inputcount];
287 }
288 }
289 dataset.add(data, output);
290 }
291 for (int i=0; i< worseBids.size(); i++) {
292 Bid worsebid = worseBids.get(i);
293 double[] data = new double[inputcount*2];
294 for (int ind=0; ind<inputcount*2; ind++) {
295 if (ind< inputcount) {
296 data[ind] = bidtoVector(bid)[ind];
297 }else {
298 data[ind] = bidtoVector(worsebid)[ind-inputcount];
299 }
300 }
301 dataset.add(data, output);
302 }
303
304 }
305
306 public void updateBidAndValueFrequency(Bid bid) {
307 bidlist.add(bid);
308 setvaluefrequency(new ArrayList<Bid>(Arrays.asList(bid)));//add upon the original.
309 }
310
311 public Domain getDomain() {
312 return this.domain;
313 }
314
315 public Bid getBestBid() {
316 return this.maxBid;
317 }
318
319 public Bid getWorstBid() {
320 return this.minBid;
321 }
322
323 public Bid getReservationBid() {
324 return this.reservationbid;
325 }
326 public List<Bid> getBidlist(){
327 return this.bidlist;
328 }
329 public List<Bid> getAllBidlist(){
330 long spacesize = allbid.size().intValue();
331 List<Bid> allbidlist = new ArrayList<Bid>();
332 for (int n = 0; n< spacesize; n++) {
333 Bid bid = allbid.get(BigInteger.valueOf(n));
334 allbidlist.add(bid);
335 }
336 return allbidlist;
337 }
338 public Ranknet getann() {
339 return this.ann;
340 }
341
342}
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