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1ee39b3a | 1 | /************************************************************************* |
9ec5bce7 | 2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercialf purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
1ee39b3a | 15 | |
16 | /* $Id: AliTRDpidRefMakerNN.cxx 27496 2008-07-22 08:35:45Z cblume $ */ | |
17 | ||
18 | //////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // Builds the reference tree for the training of neural networks // | |
21 | // // | |
22 | //////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | #include "TSystem.h" | |
25 | #include "TDatime.h" | |
26 | #include "TPDGCode.h" | |
27 | #include "TH1F.h" | |
28 | #include "TH2F.h" | |
29 | #include "TFile.h" | |
30 | #include "TGraphErrors.h" | |
31 | #include "TTree.h" | |
32 | #include "TEventList.h" | |
33 | #include "TMultiLayerPerceptron.h" | |
34 | ||
35 | #include "AliPID.h" | |
36 | #include "AliESDtrack.h" | |
37 | #include "AliTrackReference.h" | |
38 | ||
39 | #include "AliTRDtrackV1.h" | |
40 | #include "AliTRDReconstructor.h" | |
41 | #include "AliTRDpidUtil.h" | |
42 | #include "AliTRDpidRefMakerNN.h" | |
43 | #include "AliTRDpidUtil.h" | |
44 | ||
da27d983 | 45 | #include "Cal/AliTRDCalPID.h" |
46 | #include "Cal/AliTRDCalPIDNN.h" | |
1ee39b3a | 47 | #include "info/AliTRDtrackInfo.h" |
48 | #include "info/AliTRDv0Info.h" | |
a5a3321d | 49 | #include "info/AliTRDpidInfo.h" |
1ee39b3a | 50 | |
51 | ClassImp(AliTRDpidRefMakerNN) | |
52 | ||
705f8b0a | 53 | //________________________________________________________________________ |
9ec5bce7 | 54 | AliTRDpidRefMakerNN::AliTRDpidRefMakerNN() |
705f8b0a | 55 | :AliTRDpidRefMaker() |
56 | ,fNet(NULL) | |
57 | ,fTrainMomBin(kAll) | |
58 | ,fEpochs(1000) | |
59 | ,fMinTrain(100) | |
60 | ,fDate(0) | |
61 | ,fDoTraining(0) | |
62 | ,fContinueTraining(0) | |
63 | ,fTrainPath(NULL) | |
64 | ,fScale(0) | |
65 | ,fLy(0) | |
66 | ,fNtrkl(0) | |
67 | ,fRef(NULL) | |
68 | { | |
69 | // | |
70 | // Default constructor | |
71 | // | |
72 | SetNameTitle("refMakerNN", "PID(NN) Reference Maker"); | |
73 | } | |
74 | ||
75 | //________________________________________________________________________ | |
76 | AliTRDpidRefMakerNN::AliTRDpidRefMakerNN(const char *name) | |
77 | :AliTRDpidRefMaker(name, "PID(NN) Reference Maker") | |
78 | ,fNet(NULL) | |
79 | ,fTrainMomBin(kAll) | |
80 | ,fEpochs(1000) | |
81 | ,fMinTrain(100) | |
82 | ,fDate(0) | |
83 | ,fDoTraining(0) | |
84 | ,fContinueTraining(0) | |
85 | ,fTrainPath(NULL) | |
86 | ,fScale(0) | |
87 | ,fLy(0) | |
88 | ,fNtrkl(0) | |
89 | ,fRef(NULL) | |
1ee39b3a | 90 | { |
91 | // | |
92 | // Default constructor | |
93 | // | |
94 | ||
9ec5bce7 | 95 | memset(fTrain, 0, AliTRDCalPID::kNMom*sizeof(TEventList*)); |
96 | memset(fTest, 0, AliTRDCalPID::kNMom*sizeof(TEventList*)); | |
97 | memset(fTrainData, 0, AliTRDCalPID::kNMom*sizeof(TTree*)); | |
1ee39b3a | 98 | |
99 | SetAbundance(.67); | |
100 | SetScaledEdx(Float_t(AliTRDCalPIDNN::kMLPscale)); | |
101 | TDatime datime; | |
102 | fDate = datime.GetDate(); | |
1ee39b3a | 103 | } |
104 | ||
105 | ||
106 | //________________________________________________________________________ | |
107 | AliTRDpidRefMakerNN::~AliTRDpidRefMakerNN() | |
108 | { | |
109 | } | |
110 | ||
111 | ||
112 | //________________________________________________________________________ | |
705f8b0a | 113 | void AliTRDpidRefMakerNN::MakeTrainTestTrees() |
1ee39b3a | 114 | { |
9ec5bce7 | 115 | // Create output file and tree |
1ee39b3a | 116 | // Called once |
117 | ||
705f8b0a | 118 | fRef = new TFile("TRD.CalibPIDrefMakerNN.root", "RECREATE"); |
9ec5bce7 | 119 | for(Int_t ip = 0; ip < AliTRDCalPID::kNMom; ip++){ |
120 | fTrainData[ip] = new TTree(Form("fTrainData_%d", ip), Form("NN Reference Data for MomBin %d", ip)); | |
121 | fTrainData[ip] -> Branch("fdEdx", fdEdx, Form("fdEdx[%d]/F", AliTRDpidUtil::kNNslices)); | |
122 | fTrainData[ip] -> Branch("fPID", fPID, Form("fPID[%d]/F", AliPID::kSPECIES)); | |
123 | fTrainData[ip] -> Branch("fLy", &fLy, "fLy/I"); | |
124 | fTrainData[ip] -> Branch("fNtrkl", &fNtrkl, "fNtrkl/I"); | |
125 | ||
126 | fTrain[ip] = new TEventList(Form("fTrainMom%d", ip), Form("Training list for momentum intervall %d", ip)); | |
127 | fTest[ip] = new TEventList(Form("fTestMom%d", ip), Form("Test list for momentum intervall %d", ip)); | |
128 | } | |
1ee39b3a | 129 | } |
130 | ||
131 | ||
132 | ||
133 | //________________________________________________________________________ | |
134 | Bool_t AliTRDpidRefMakerNN::PostProcess() | |
135 | { | |
136 | // Draw result to the screen | |
137 | // Called once at the end of the query | |
138 | ||
9ec5bce7 | 139 | TFile *fCalib = TFile::Open(Form("TRD.CalibPIDrefMaker.root")); |
140 | if (!fCalib) { | |
141 | AliError("Calibration file not available"); | |
142 | return kFALSE; | |
143 | } | |
705f8b0a | 144 | fData = (TTree*)fCalib->Get("refMakerNN"); |
9ec5bce7 | 145 | if (!fData) { |
146 | AliError("Calibration data not available"); | |
147 | return kFALSE; | |
148 | } | |
705f8b0a | 149 | TObjArray *o = NULL; |
150 | if(!(o = (TObjArray*)fCalib->Get("MonitorNN"))) { | |
9ec5bce7 | 151 | AliWarning("Missing monitoring container."); |
152 | return kFALSE; | |
153 | } | |
154 | fContainer = (TObjArray*)o->Clone("monitor"); | |
155 | ||
156 | ||
157 | if (!fRef) { | |
705f8b0a | 158 | AliDebug(2, "Loading file TRD.CalibPIDrefMakerNN.root"); |
159 | LoadFile("TRD.CalibPIDrefMakerNN.root"); | |
9ec5bce7 | 160 | } |
161 | else AliDebug(2, "file available"); | |
162 | ||
163 | if (!fRef) { | |
705f8b0a | 164 | MakeTrainTestTrees(); |
9ec5bce7 | 165 | |
166 | // Convert the CaliPIDrefMaker tree to 11 (different momentum bin) trees for NN training | |
167 | ||
168 | LinkPIDdata(); | |
169 | for(Int_t ip=0; ip < AliTRDCalPID::kNMom; ip++){ | |
170 | for(Int_t is=0; is < AliPID::kSPECIES; is++) { | |
171 | memset(fPID, 0, AliPID::kSPECIES*sizeof(Float_t)); | |
172 | fPID[is] = 1; | |
173 | Int_t n(0); // index of data | |
174 | for(Int_t itrk = 0; itrk<fData->GetEntries() && n<kMaxStat; itrk++){ | |
175 | if(!(fData->GetEntry(itrk))) continue; | |
a5a3321d | 176 | if(fPIDdataArray->GetPID()!=is) continue; |
177 | fNtrkl = fPIDdataArray->GetNtracklets(); | |
178 | for(Int_t ily=fPIDdataArray->GetNtracklets(); ily--;){ | |
9ec5bce7 | 179 | fLy = ily; |
a5a3321d | 180 | if(fPIDdataArray->GetData(ily)->Momentum()!= ip) continue; |
9ec5bce7 | 181 | memset(fdEdx, 0, AliTRDpidUtil::kNNslices*sizeof(Float_t)); |
182 | for(Int_t islice=AliTRDCalPID::kNSlicesNN; islice--;){ | |
a5a3321d | 183 | fdEdx[islice]+=fPIDdataArray->GetData(ily)->fdEdx[islice]; |
9ec5bce7 | 184 | fdEdx[islice]/=fScale; |
185 | } | |
186 | fTrainData[ip] -> Fill(); | |
187 | n++; | |
188 | } | |
189 | } | |
190 | AliDebug(2, Form("%d %d %d", ip, is, n)); | |
191 | } | |
192 | } | |
193 | ||
194 | ||
195 | fRef -> cd(); | |
196 | for(Int_t ip = 0; ip < AliTRDCalPID::kNMom; ip++){ | |
197 | fTrainData[ip] -> Write(); | |
198 | } | |
199 | ||
200 | } | |
201 | else AliDebug(2, "file available"); | |
202 | ||
203 | ||
204 | // build the training and the test list for the neural networks | |
205 | for(Int_t ip = 0; ip < AliTRDCalPID::kNMom; ip++){ | |
206 | MakeTrainingLists(ip); | |
207 | } | |
1ee39b3a | 208 | if(!fDoTraining) return kTRUE; |
209 | ||
9ec5bce7 | 210 | |
211 | ||
212 | // train the neural networks | |
1ee39b3a | 213 | gSystem->Exec(Form("mkdir ./Networks_%d/",fDate)); |
214 | AliDebug(2, Form("TrainMomBin [%d] [%d]", fTrainMomBin, kAll)); | |
215 | ||
216 | // train single network for a single momentum (recommended) | |
217 | if(!(fTrainMomBin == kAll)){ | |
9ec5bce7 | 218 | if(fTrain[fTrainMomBin] -> GetN() < fMinTrain){ |
219 | AliError("Warning in AliTRDpidRefMakerNN::PostProcess : Not enough events for training available! Please check Data sample!"); | |
1ee39b3a | 220 | return kFALSE; |
221 | } | |
222 | MakeRefs(fTrainMomBin); | |
1ee39b3a | 223 | MonitorTraining(fTrainMomBin); |
224 | } | |
225 | // train all momenta | |
226 | else{ | |
227 | for(Int_t iMomBin = 0; iMomBin < AliTRDCalPID::kNMom; iMomBin++){ | |
9ec5bce7 | 228 | if(fTrain[iMomBin] -> GetN() < fMinTrain){ |
229 | AliError(Form("Warning in AliTRDpidRefMakerNN::PostProcess : Not enough events for training available for momentum bin [%d]! Please check Data sample!", iMomBin)); | |
230 | continue; | |
1ee39b3a | 231 | } |
232 | MakeRefs(fTrainMomBin); | |
1ee39b3a | 233 | MonitorTraining(iMomBin); |
234 | } | |
235 | } | |
236 | ||
237 | return kTRUE; // testing protection | |
238 | } | |
239 | ||
240 | ||
241 | //________________________________________________________________________ | |
9ec5bce7 | 242 | void AliTRDpidRefMakerNN::MakeTrainingLists(Int_t mombin) |
1ee39b3a | 243 | { |
244 | // | |
245 | // build the training lists for the neural networks | |
246 | // | |
247 | ||
9ec5bce7 | 248 | if (!fRef) { |
249 | LoadFile(Form("TRD.Calib%s.root", GetName())); | |
1ee39b3a | 250 | } |
251 | ||
9ec5bce7 | 252 | if (!fRef) { |
253 | AliError("ERROR file for building training list not available"); | |
1ee39b3a | 254 | return; |
255 | } | |
256 | ||
9ec5bce7 | 257 | AliDebug(2, "\n Making training lists! \n"); |
1ee39b3a | 258 | |
9ec5bce7 | 259 | Int_t nPart[AliPID::kSPECIES]; |
260 | memset(nPart, 0, AliPID::kSPECIES*sizeof(Int_t)); | |
1ee39b3a | 261 | |
262 | // set needed branches | |
9ec5bce7 | 263 | fTrainData[mombin] -> SetBranchAddress("fdEdx", fdEdx); |
264 | fTrainData[mombin] -> SetBranchAddress("fPID", fPID); | |
265 | fTrainData[mombin] -> SetBranchAddress("fLy", &fLy); | |
266 | fTrainData[mombin] -> SetBranchAddress("fNtrkl", &fNtrkl); | |
267 | ||
1ee39b3a | 268 | // start first loop to check total number of each particle type |
9ec5bce7 | 269 | for(Int_t iEv=0; iEv < fTrainData[mombin] -> GetEntries(); iEv++){ |
270 | fTrainData[mombin] -> GetEntry(iEv); | |
1ee39b3a | 271 | |
272 | // use only events with goes through 6 layers TRD | |
9ec5bce7 | 273 | if(fNtrkl != AliTRDgeometry::kNlayer) continue; |
274 | ||
275 | if(fPID[AliPID::kElectron] == 1) | |
276 | nPart[AliPID::kElectron]++; | |
277 | else if(fPID[AliPID::kMuon] == 1) | |
278 | nPart[AliPID::kMuon]++; | |
279 | else if(fPID[AliPID::kPion] == 1) | |
280 | nPart[AliPID::kPion]++; | |
281 | else if(fPID[AliPID::kKaon] == 1) | |
282 | nPart[AliPID::kKaon]++; | |
283 | else if(fPID[AliPID::kProton] == 1) | |
284 | nPart[AliPID::kProton]++; | |
1ee39b3a | 285 | } |
286 | ||
287 | AliDebug(2, "Particle multiplicities:"); | |
9ec5bce7 | 288 | AliDebug(2, Form("Momentum[%d] Elecs[%d] Muons[%d] Pions[%d] Kaons[%d] Protons[%d]", mombin, nPart[AliPID::kElectron], nPart[AliPID::kMuon], nPart[AliPID::kPion], nPart[AliPID::kKaon], nPart[AliPID::kProton])); |
289 | ||
290 | ||
1ee39b3a | 291 | |
9ec5bce7 | 292 | // // implement counter of training and test sample size |
293 | Int_t iTrain = 0, iTest = 0; | |
1ee39b3a | 294 | |
295 | // set training sample size per momentum interval to 2/3 | |
296 | // of smallest particle counter and test sample to 1/3 | |
9ec5bce7 | 297 | iTrain = nPart[0]; |
298 | for(Int_t iPart = 1; iPart < AliPID::kSPECIES; iPart++){ | |
299 | // exclude muons and kaons if not availyable | |
300 | // this is neeeded since we do not have v0 candiates | |
301 | if((iPart == AliPID::kMuon || iPart == AliPID::kKaon) && (nPart[AliPID::kMuon] == 0 || nPart[AliPID::kKaon] == 0)) continue; | |
302 | if(iTrain > nPart[iPart]) | |
303 | iTrain = nPart[iPart]; | |
304 | } | |
305 | iTest = Int_t( iTrain * (1-fFreq)); | |
306 | iTrain = Int_t(iTrain * fFreq); | |
307 | AliDebug(2, Form("Momentum[%d] Train[%d] Test[%d]", mombin, iTrain, iTest)); | |
308 | ||
1ee39b3a | 309 | |
310 | ||
311 | // reset couters | |
9ec5bce7 | 312 | memset(nPart, 0, AliPID::kSPECIES*sizeof(Int_t)); |
1ee39b3a | 313 | |
314 | // start second loop to set the event lists | |
9ec5bce7 | 315 | for(Int_t iEv = 0; iEv < fTrainData[mombin] -> GetEntries(); iEv++){ |
316 | fTrainData[mombin] -> GetEntry(iEv); | |
317 | ||
318 | // set event list | |
319 | for(Int_t is = 0; is < AliPID::kSPECIES; is++){ | |
320 | if(nPart[is] < iTrain && fPID[is] == 1){ | |
321 | fTrain[mombin] -> Enter(iEv); | |
322 | nPart[is]++; | |
323 | } else if(nPart[is] < iTest+iTrain && fPID[is] == 1){ | |
324 | fTest[mombin] -> Enter(iEv); | |
325 | nPart[is]++; | |
1ee39b3a | 326 | } else continue; |
327 | } | |
328 | } | |
329 | ||
330 | AliDebug(2, "Particle multiplicities in both lists:"); | |
9ec5bce7 | 331 | AliDebug(2, Form("Momentum[%d] Elecs[%d] Muons[%d] Pions[%d] Kaons[%d] Protons[%d]", mombin, nPart[AliPID::kElectron], nPart[AliPID::kMuon], nPart[AliPID::kPion], nPart[AliPID::kKaon], nPart[AliPID::kProton])); |
332 | ||
333 | return; | |
1ee39b3a | 334 | } |
335 | ||
336 | ||
337 | //________________________________________________________________________ | |
338 | void AliTRDpidRefMakerNN::MakeRefs(Int_t mombin) | |
339 | { | |
340 | // | |
341 | // train the neural networks | |
342 | // | |
343 | ||
344 | ||
9ec5bce7 | 345 | if (!fTrainData[mombin]) LoadFile(Form("TRD.Calib%s.root", GetName())); |
1ee39b3a | 346 | |
9ec5bce7 | 347 | if (!fTrainData[mombin]) { |
1ee39b3a | 348 | AliError("Tree for training list not available"); |
349 | return; | |
350 | } | |
351 | ||
352 | TDatime datime; | |
353 | fDate = datime.GetDate(); | |
354 | ||
355 | AliDebug(2, Form("Training momentum bin %d", mombin)); | |
356 | ||
357 | // set variable to monitor the training and to save the development of the networks | |
358 | Int_t nEpochs = fEpochs/kMoniTrain; | |
359 | AliDebug(2, Form("Training %d times %d epochs", kMoniTrain, nEpochs)); | |
360 | ||
361 | // make directories to save the networks | |
362 | gSystem->Exec(Form("rm -r ./Networks_%d/MomBin_%d",fDate, mombin)); | |
363 | gSystem->Exec(Form("mkdir ./Networks_%d/MomBin_%d",fDate, mombin)); | |
364 | ||
365 | // variable to check if network can load weights from previous training | |
9ec5bce7 | 366 | Bool_t bFirstLoop = kTRUE; |
1ee39b3a | 367 | |
368 | // train networks over several loops and save them after each loop | |
369 | for(Int_t iLoop = 0; iLoop < kMoniTrain; iLoop++){ | |
9ec5bce7 | 370 | fTrainData[mombin] -> SetEventList(fTrain[mombin]); |
371 | fTrainData[mombin] -> SetEventList(fTest[mombin]); | |
1ee39b3a | 372 | |
9ec5bce7 | 373 | AliDebug(2, Form("Momentum[%d] Trainingloop[%d]", mombin, iLoop)); |
1ee39b3a | 374 | |
9ec5bce7 | 375 | // check if network is already implemented |
376 | if(bFirstLoop == kTRUE){ | |
377 | fNet = new TMultiLayerPerceptron("fdEdx[0],fdEdx[1],fdEdx[2],fdEdx[3],fdEdx[4],fdEdx[5],fdEdx[6],fdEdx[7]:15:7:fPID[0],fPID[1],fPID[2],fPID[3],fPID[4]!",fTrainData[mombin],fTrain[mombin],fTest[mombin]); | |
378 | fNet -> SetLearningMethod(TMultiLayerPerceptron::kStochastic); // set learning method | |
379 | fNet -> TMultiLayerPerceptron::SetEta(0.001); // set learning speed | |
380 | if(!fContinueTraining){ | |
381 | if(AliLog::GetDebugLevel("","AliTRDpidRefMakerNN")>=2) fNet -> Train(nEpochs,"text update=10, graph"); | |
382 | else fNet -> Train(nEpochs,""); | |
1ee39b3a | 383 | } |
9ec5bce7 | 384 | else{ |
385 | fNet -> LoadWeights(Form("./Networks_%d/MomBin_%d/Net_%d",fTrainPath, mombin, kMoniTrain - 1)); | |
386 | if(AliLog::GetDebugLevel("","AliTRDpidRefMakerNN")>=2) fNet -> Train(nEpochs,"text update=10, graph+"); | |
387 | else fNet -> Train(nEpochs,"+"); | |
1ee39b3a | 388 | } |
9ec5bce7 | 389 | bFirstLoop = kFALSE; |
390 | } | |
391 | else{ | |
392 | if(AliLog::GetDebugLevel("","AliTRDpidRefMakerNN")>=2) fNet -> Train(nEpochs,"text update=10, graph+"); | |
393 | else fNet -> Train(nEpochs,"+"); | |
394 | } | |
1ee39b3a | 395 | |
9ec5bce7 | 396 | // save weights for monitoring of the training |
397 | fNet -> DumpWeights(Form("./Networks_%d/MomBin_%d/Net_%d",fDate, mombin, iLoop)); | |
1ee39b3a | 398 | } // end training loop |
399 | } | |
400 | ||
401 | ||
402 | ||
403 | //________________________________________________________________________ | |
404 | void AliTRDpidRefMakerNN::MonitorTraining(Int_t mombin) | |
405 | { | |
406 | // | |
407 | // train the neural networks | |
408 | // | |
409 | ||
9ec5bce7 | 410 | if (!fTrainData[mombin]) LoadFile(Form("TRD.Calib%s.root", GetName())); |
411 | if (!fTrainData[mombin]) { | |
1ee39b3a | 412 | AliError("Tree for training list not available"); |
413 | return; | |
414 | } | |
415 | ||
416 | // init networks and set event list | |
417 | for(Int_t iChamb = 0; iChamb < AliTRDgeometry::kNlayer; iChamb++){ | |
9ec5bce7 | 418 | fNet = new TMultiLayerPerceptron("fdEdx[0],fdEdx[1],fdEdx[2],fdEdx[3],fdEdx[4],fdEdx[5],fdEdx[6],fdEdx[7]:15:7:fPID[0],fPID[1],fPID[2],fPID[3],fPID[4]!",fTrainData[mombin],fTrain[mombin],fTest[mombin]); |
419 | fTrainData[mombin] -> SetEventList(fTrain[mombin]); | |
420 | fTrainData[mombin] -> SetEventList(fTest[mombin]); | |
1ee39b3a | 421 | } |
422 | ||
423 | // implement variables for likelihoods | |
424 | Float_t like[AliPID::kSPECIES][AliTRDgeometry::kNlayer]; | |
425 | memset(like, 0, AliPID::kSPECIES*AliTRDgeometry::kNlayer*sizeof(Float_t)); | |
426 | Float_t likeAll[AliPID::kSPECIES], totProb; | |
427 | ||
428 | Double_t pionEffiTrain[kMoniTrain], pionEffiErrTrain[kMoniTrain]; | |
429 | Double_t pionEffiTest[kMoniTrain], pionEffiErrTest[kMoniTrain]; | |
430 | memset(pionEffiTrain, 0, kMoniTrain*sizeof(Double_t)); | |
431 | memset(pionEffiErrTrain, 0, kMoniTrain*sizeof(Double_t)); | |
432 | memset(pionEffiTest, 0, kMoniTrain*sizeof(Double_t)); | |
433 | memset(pionEffiErrTest, 0, kMoniTrain*sizeof(Double_t)); | |
434 | ||
435 | // init histos | |
436 | const Float_t epsilon = 1/(2*(AliTRDpidUtil::kBins-1)); // get nice histos with bin center at 0 and 1 | |
437 | TH1F *hElecs, *hPions; | |
438 | hElecs = new TH1F("hElecs","Likelihood for electrons", AliTRDpidUtil::kBins, 0.-epsilon, 1.+epsilon); | |
439 | hPions = new TH1F("hPions","Likelihood for pions", AliTRDpidUtil::kBins, 0.-epsilon, 1.+epsilon); | |
440 | ||
9ec5bce7 | 441 | TGraphErrors *gEffisTrain = new TGraphErrors(kMoniTrain); |
442 | gEffisTrain -> SetLineColor(4); | |
443 | gEffisTrain -> SetMarkerColor(4); | |
444 | gEffisTrain -> SetMarkerStyle(29); | |
445 | gEffisTrain -> SetMarkerSize(1); | |
446 | ||
447 | TGraphErrors *gEffisTest = new TGraphErrors(kMoniTrain); | |
448 | gEffisTest -> SetLineColor(2); | |
449 | gEffisTest -> SetMarkerColor(2); | |
450 | gEffisTest -> SetMarkerStyle(29); | |
451 | gEffisTest -> SetMarkerSize(1); | |
1ee39b3a | 452 | |
453 | AliTRDpidUtil *util = new AliTRDpidUtil(); | |
454 | ||
455 | // monitor training progress | |
456 | for(Int_t iLoop = 0; iLoop < kMoniTrain; iLoop++){ | |
457 | ||
458 | // load weights | |
9ec5bce7 | 459 | fNet -> LoadWeights(Form("./Networks_%d/MomBin_%d/Net_%d",fDate, mombin, iLoop)); |
460 | AliDebug(2, Form("./Networks_%d/MomBin_%d/Net_%d",fDate, mombin, iLoop)); | |
1ee39b3a | 461 | |
462 | // event loop training list | |
1ee39b3a | 463 | |
9ec5bce7 | 464 | for(Int_t is = 0; is < AliPID::kSPECIES; is++){ |
1ee39b3a | 465 | |
9ec5bce7 | 466 | if(!((is == AliPID::kElectron) || (is == AliPID::kPion))) continue; |
1ee39b3a | 467 | |
9ec5bce7 | 468 | Int_t iChamb = 0; |
469 | // reset particle probabilities | |
1ee39b3a | 470 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ |
9ec5bce7 | 471 | likeAll[iPart] = 1./AliPID::kSPECIES; |
1ee39b3a | 472 | } |
9ec5bce7 | 473 | totProb = 0.; |
1ee39b3a | 474 | |
9ec5bce7 | 475 | AliDebug(2, Form("%d",fTrain[mombin] -> GetN())); |
476 | for(Int_t iEvent = 0; iEvent < fTrain[mombin] -> GetN(); iEvent++ ){ | |
477 | fTrainData[mombin] -> GetEntry(fTrain[mombin] -> GetEntry(iEvent)); | |
478 | // use event only if it is electron or pion | |
479 | if(!(fPID[is] == 1.0)) continue; | |
480 | // get the probabilities for each particle type in each chamber | |
481 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
482 | like[iPart][iChamb] = fNet -> Result(fTrain[mombin] -> GetEntry(iEvent), iPart); | |
483 | likeAll[iPart] *= like[iPart][iChamb]; | |
484 | } | |
485 | //end chamber loop | |
486 | iChamb++; | |
487 | ||
488 | // get total probability and normalize it | |
489 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
490 | totProb += likeAll[iPart]; | |
491 | } | |
492 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
493 | likeAll[iPart] /= totProb; | |
494 | } | |
495 | ||
496 | if(iChamb == 5){ | |
497 | // fill likelihood distributions | |
498 | if(fPID[AliPID::kElectron] == 1) | |
499 | hElecs -> Fill(likeAll[AliPID::kElectron]); | |
500 | if(fPID[AliPID::kPion] == 1) | |
501 | hPions -> Fill(likeAll[AliPID::kElectron]); | |
502 | iChamb = 0; | |
503 | // reset particle probabilities | |
504 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
505 | likeAll[iPart] = 1./AliPID::kSPECIES; | |
506 | } | |
507 | totProb = 0.; | |
508 | } | |
509 | } // end event loop | |
510 | } // end species loop | |
511 | ||
1ee39b3a | 512 | |
513 | // calculate the pion efficiency and fill the graph | |
514 | util -> CalculatePionEffi(hElecs, hPions); | |
515 | pionEffiTrain[iLoop] = util -> GetPionEfficiency(); | |
516 | pionEffiErrTrain[iLoop] = util -> GetError(); | |
517 | ||
518 | gEffisTrain -> SetPoint(iLoop, iLoop+1, pionEffiTrain[iLoop]); | |
519 | gEffisTrain -> SetPointError(iLoop, 0, pionEffiErrTrain[iLoop]); | |
520 | hElecs -> Reset(); | |
521 | hPions -> Reset(); | |
522 | AliDebug(2, Form("TrainingLoop[%d] PionEfficiency[%f +/- %f]", iLoop, pionEffiTrain[iLoop], pionEffiErrTrain[iLoop])); | |
523 | // end training loop | |
524 | ||
525 | ||
526 | ||
9ec5bce7 | 527 | // monitor validation progress |
528 | for(Int_t is = 0; is < AliPID::kSPECIES; is++){ | |
1ee39b3a | 529 | |
9ec5bce7 | 530 | if(!((is == AliPID::kElectron) || (is == AliPID::kPion))) continue; |
531 | ||
532 | Int_t iChamb = 0; | |
1ee39b3a | 533 | // reset particle probabilities |
534 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
9ec5bce7 | 535 | likeAll[iPart] = 1./AliPID::kSPECIES; |
1ee39b3a | 536 | } |
537 | totProb = 0.; | |
538 | ||
9ec5bce7 | 539 | for(Int_t iEvent = 0; iEvent < fTest[mombin] -> GetN(); iEvent++ ){ |
540 | fTrainData[mombin] -> GetEntry(fTest[mombin] -> GetEntry(iEvent)); | |
541 | // use event only if it is electron or pion | |
542 | if(!(fPID[is] == 1.0)) continue; | |
543 | ||
544 | // get the probabilities for each particle type in each chamber | |
545 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
546 | like[iPart][iChamb] = fNet -> Result(fTest[mombin] -> GetEntry(iEvent), iPart); | |
547 | likeAll[iPart] *= like[iPart][iChamb]; | |
548 | } | |
549 | iChamb++; | |
550 | ||
551 | // get total probability and normalize it | |
552 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
553 | totProb += likeAll[iPart]; | |
554 | } | |
555 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
556 | likeAll[iPart] /= totProb; | |
557 | } | |
558 | ||
559 | if(iChamb == 5){ | |
560 | // fill likelihood distributions | |
561 | if(fPID[AliPID::kElectron] == 1) | |
562 | hElecs -> Fill(likeAll[AliPID::kElectron]); | |
563 | if(fPID[AliPID::kPion] == 1) | |
564 | hPions -> Fill(likeAll[AliPID::kElectron]); | |
565 | iChamb = 0; | |
566 | // reset particle probabilities | |
567 | for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){ | |
568 | likeAll[iPart] = 1./AliPID::kSPECIES; | |
569 | } | |
570 | totProb = 0.; | |
571 | } | |
572 | } // end event loop | |
573 | } // end species loop | |
574 | ||
1ee39b3a | 575 | // calculate the pion efficiency and fill the graph |
576 | util -> CalculatePionEffi(hElecs, hPions); | |
577 | pionEffiTest[iLoop] = util -> GetPionEfficiency(); | |
578 | pionEffiErrTest[iLoop] = util -> GetError(); | |
579 | ||
580 | gEffisTest -> SetPoint(iLoop, iLoop+1, pionEffiTest[iLoop]); | |
581 | gEffisTest -> SetPointError(iLoop, 0, pionEffiErrTest[iLoop]); | |
582 | hElecs -> Reset(); | |
583 | hPions -> Reset(); | |
584 | AliDebug(2, Form("TestLoop[%d] PionEfficiency[%f +/- %f] \n", iLoop, pionEffiTest[iLoop], pionEffiErrTest[iLoop])); | |
585 | ||
9ec5bce7 | 586 | } // end validation loop |
1ee39b3a | 587 | |
588 | util -> Delete(); | |
589 | ||
590 | gEffisTest -> Draw("PAL"); | |
591 | gEffisTrain -> Draw("PL"); | |
592 | ||
593 | } | |
594 | ||
595 | ||
596 | //________________________________________________________________________ | |
9ec5bce7 | 597 | Bool_t AliTRDpidRefMakerNN::LoadFile(const Char_t *InFileNN) |
1ee39b3a | 598 | { |
599 | // | |
600 | // Loads the files and sets the event list | |
9ec5bce7 | 601 | // for neural network training. |
1ee39b3a | 602 | // Useable for training outside of the makeResults.C macro |
603 | // | |
604 | ||
9ec5bce7 | 605 | fRef = TFile::Open(Form("%s", InFileNN)); |
606 | if(!fRef) return 0; | |
607 | for(Int_t ip = 0; ip < AliTRDCalPID::kNMom; ip++){ | |
608 | fTrainData[ip] = (TTree*)fRef -> Get(Form("fTrainData_%d", ip)); | |
609 | } | |
1ee39b3a | 610 | |
611 | for(Int_t iMom = 0; iMom < AliTRDCalPID::kNMom; iMom++){ | |
9ec5bce7 | 612 | fTrain[iMom] = new TEventList(Form("fTrainMom%d", iMom), Form("Training list for momentum intervall %d", iMom)); |
613 | fTest[iMom] = new TEventList(Form("fTestMom%d", iMom), Form("Test list for momentum intervall %d", iMom)); | |
1ee39b3a | 614 | } |
9ec5bce7 | 615 | return 1; |
1ee39b3a | 616 | } |
617 | ||
618 |