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Analysis Meeting 31Oct 05T. Burnett1 Classification, etc. status at UW Background rejection for the v7r2 “500M” run at SLAC”: first look at v7r3.

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Presentation on theme: "Analysis Meeting 31Oct 05T. Burnett1 Classification, etc. status at UW Background rejection for the v7r2 “500M” run at SLAC”: first look at v7r3."— Presentation transcript:

1 Analysis Meeting 31Oct 05T. Burnett1 Classification, etc. status at UW Background rejection for the v7r2 “500M” run at SLAC”: first look at v7r3.

2 Analysis Meeting 31Oct 05T. Burnett2 Application of boosted trees New application in GlastClassify package: apply –Adds or replaces tuple values with recalculated “CT” variables CTgoodCal CTvertex CTgoodPsf CTgamma CTgammaType root [2] t.Print("CT*") ****************************************************************************** *Tree :MeritTuple: Glast tuple * *Entries : 2561797 : Total = 3177205466 bytes File Size = 1533597317 * * : : Tree compression factor = 2.07 * ****************************************************************************** *Br 0 :CTgoodCal : CTgoodCal/D * *Entries : 2561797 : Total Size= 20562918 bytes File Size = 1436513 * *Baskets : 642 : Basket Size= 32000 bytes Compression= 14.30 * *............................................................................* *Br 1 :CTvertex : CTvertex/D * *Entries : 2561797 : Total Size= 20562270 bytes File Size = 881183 * *Baskets : 642 : Basket Size= 32000 bytes Compression= 23.31 * *............................................................................* *Br 2 :CTgoodPsf : CTgoodPsf/D * *Entries : 2561797 : Total Size= 20562918 bytes File Size = 7866711 * *Baskets : 642 : Basket Size= 32000 bytes Compression= 2.61 * *............................................................................* *Br 3 :CTgamma : CTgamma/D * *Entries : 2561797 : Total Size= 20561622 bytes File Size = 1407513 * *Baskets : 642 : Basket Size= 32000 bytes Compression= 14.59 * *............................................................................* *Br 4 :CTgammaType : CTgammaType/D * *Entries : 2561797 : Total Size= 20564214 bytes File Size = 2332929 * *Baskets : 642 : Basket Size= 32000 bytes Compression= 8.80 * *............................................................................*

3 Analysis Meeting 31Oct 05T. Burnett3 Effect of boosting train_efficiency: single tree. Train on UW v7r2 background runs test_efficiency: after boosting 10 times, v2r2 SLAC v7r2 runs

4 Analysis Meeting 31Oct 05T. Burnett4 SLAC v7r2 “500M” livetime: Simply count the runs that have data. –Note: the number of events per run, or second, is less than the down-link rate (~550 Hz) due to the “prune”. –Above gives 8753 seconds

5 Analysis Meeting 31Oct 05T. Burnett5 Current status of UW background rejection Fails science requirement

6 Analysis Meeting 31Oct 05T. Burnett6 New “500 M” v3r3 run Fails science requirement

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