1 / 14

Variables used for training the BDT

Variables used for training the BDT. 1. mm Selection 2 muons with pt>10, 20 , | h |<2.4 Isolated with tracks and calotowers ( trackIso<2, caloIso<5) “PreSelection cuts”  Ntracks>1 && MET>30 && InvMass>12 BDT cut. Ptmuon1, Ptmuon2 | h muon1|, | h muon2| MET InvMass dPhi muons

lynne
Download Presentation

Variables used for training the BDT

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Variables used for training the BDT 1. mm Selection • 2 muons with pt>10, 20 , |h|<2.4 • Isolated with tracks and calotowers ( trackIso<2, caloIso<5) • “PreSelection cuts”  Ntracks>1 && MET>30 && InvMass>12 • BDT cut • Ptmuon1, Ptmuon2 • |h muon1|, |h muon2| • MET • InvMass • dPhi muons • Mt (max, min) • dPhi (muon, MET) (max, min) • NTracks • SumEt

  2. Samples TRAINING /H160_WW_2l/Summer08_IDEAL_V9_v2/GEN-SIM-RECO (130300 events) /WW_2l/Summer08_IDEAL_V9_v2/GEN-SIM-RECO (106100 events) /TTJets-madgraph/Summer08_IDEAL_V9_v2/GEN-SIM-RECO (1072006 events) TEST /pool/fanae103/10TeV_WW (65000 events) /TTbar-madgraph/Winter09_IDEAL_V11_FastSim_v1/GEN-SIM-DIGI-RECO (~10M events) /Zmumu/Summer08_IDEAL_V9_AODSIM_v1/AODSIM(~1M events) /WJets-madgraph/Summer08_IDEAL_V9_AODSIM_v1/AODSIM (~10M) • Number of available events at mm selection + “preselection” level • HWW160  5367 + 3488 • WW Summer08  4528 WW FastSim  2891 • tt Summer08  5987 tt Winter09  64674

  3. Files /CMSSW_2_1_12/src/miniTrees_Jan09 • HWW160_Jan09_Training • WW_Summer08_Jan09.root • Tt_Summer08_Jan09.root • HWW160_Jan09_Test.root • WW_FastSim_Jan09.root • Tt_Winter09_Jan09.root • Wjets_Summer08_Jan09.root • Zmumu_Summer08_Jan09.root /CMSSW_2_2_1/src/TMVA/macros TMVA v3.9.4 • TMVA_TrainAgainstWW_Jan09.root • TMVA_TrainAgainstTT_Jan09.root Weights • “TMVAnalysis_ww_Jan09” • “TMVAnalysis_tt_Jan09”

  4. ttbar FastSim vs ttbar FullSim /TTJets-madgraph/Summer08_IDEAL_V9_v2/GEN-SIM-RECO /TTbar-madgraph/Winter09_IDEAL_V11_FastSim_v1/GEN-SIM-DIGI-RECO

  5. /TTJets-madgraph/Summer08_IDEAL_V9_v2/GEN-SIM-RECO /TTbar-madgraph/Winter09_IDEAL_V11_FastSim_v1/GEN-SIM-DIGI-RECO

  6. WW FastSim vs WW FullSim /WW_2l/Summer08_IDEAL_V9_v2/GEN-SIM-RECO /pool/fanae103/10TeV_WW (FastSim)

  7. /WW_2l/Summer08_IDEAL_V9_v2/GEN-SIM-RECO /pool/fanae103/10TeV_WW (FastSim)

  8. 1. Training against WW ---------------------------------------------------------------- Rank : Variable : Variable Importance --------------------------------------------------------------- 1 : dPhi : 3.102e-01 2 : InvMass : 1.280e-01 3 : fabs(Etamuon1) : 1.057e-01 4 : fabs(Etamuon2) : 7.529e-02 5 : Mtmin : 7.429e-02 6 : dPhiMuMetmin : 5.561e-02 7 : dPhiMuMetmax : 5.496e-02 8 : MET : 4.375e-02 9 : Mtmax : 4.254e-02 10 : Ntracks : 3.545e-02 11 : Ptmuon2 : 3.194e-02 12 : Ptmuon1 : 2.138e-02 13 : SumEt : 2.093e-02 --------------------------------------------------------------- • Training • 79600 events from /H160_WW_2l/Summer08_IDEAL_V9_v2/GEN-SIM-RECO • /WW_2l/Summer08_IDEAL_V9_v2/GEN-SIM-RECO Signal = 5367 training / 3488 test Background =4528 training /2891 test 1000 Trees nCuts=20 PruneStrength=9.5 Testing efficiency compared to training efficiency (overtraining check) ----------------------------------------------------------------------------- MVA Signal efficiency: from test sample (from traing sample) Methods: @B=0.01 @B=0.10 @B=0.30 ----------------------------------------------------------------------------- BDT : 0.161 (0.190) 0.548 (0.601) 0.859 (0.877) -----------------------------------------------------------------------------

  9. 2. Training against tt ---------------------------------------------------------------- Rank : Variable : Variable Importance ---------------------------------------------------------------- 1 : Ntracks : 3.473e-01 2 : SumEt : 1.355e-01 3 : InvMass : 1.143e-01 4 : dPhi : 8.471e-02 5 : Mtmin : 5.941e-02 6 : dPhiMuMetmax : 5.152e-02 7 : dPhiMuMetmin : 4.223e-02 8 : Ptmuon2 : 3.764e-02 9 : Mtmax : 3.119e-02 10 : fabs(Etamuon2) : 3.008e-02 11 : fabs(Etamuon1) : 2.896e-02 12 : MET : 2.383e-02 13 : Ptmuon1 : 1.334e-02 ---------------------------------------------------------------- • Training • 79600 events from /H160_WW_2l/Summer08_IDEAL_V9_v2/GEN-SIM-RECO • /TTJets-madgraph/Summer08_IDEAL_V9_v2/GEN-SIM-RECO Signal = 5367 training / 3488 test Background =5987 training /64674 test 1000 Trees nCuts=20 PruneStrength=9.5 Testing efficiency compared to training efficiency (overtraining check) ----------------------------------------------------------------------------- MVA Signal efficiency: from test sample (from traing sample) Methods: @B=0.01 @B=0.10 @B=0.30 ----------------------------------------------------------------------------- BDT : 0.565 (0.597) 0.873 (0.896) 0.973 (0.975) -----------------------------------------------------------------------------

  10. BDT re-trained using Summer08 samples • New definition of Ntracks • Use of FastSim Winter09 samples to increase statistics New Training Old Training Old training applied to the new samples

  11. VERY low statistics for W+jets!!!! (only 40 real events! after muon selection) Start using Z+jets and W+jets Winter09 FastSim samples

More Related