LabwideRunAdvancedAnalysisGroup.pptVIP

April 25, 2001 April 25, 2001 D0 Collaboration Meeting P. Bhat Lab-wide Run 2 Advanced Analysis Group Pushpa Bhat Fermilab Why Lab-wide (CDF/D?)? We may find it necessary to co-operate with the other experiment on important physics analyses Likely scenario for Higgs discovery: 5? signal at 115 GeV/c2 requires 15 fb-1 at each experiment and combining the results! Run2AAG - Brief History Desirability of such a group expressed at ACAT2K and Top Thinkshop-2 by CDF, D? physicists Had discussions with CDF/D? spokespersons, Directorate Presentations at a couple of CDF meetings One-day mini-workshop on Feb. 10, 2001 ~70 people from CDF/D? Opening by Mike Shaevitz Many talks + tool-kit demo Identified sub-groups A few meetings since the workshop See /~pushpa/run2aag/ Run2AAG Focus: Multivariate Statistical Analysis Issues for Run II Goals: Learn and discuss Explore, develop adopt tools Evaluate Methods Document tools, studies, findings ? Generate a report Agenda: Driven by the participants Run II Advanced Analysis Working Groups Tools Provide convenient interfaces to useful algorithms and software, in an experiment-independent manner Simulation provide simulated data in a convenient form for evaluation studies Evaluation Evaluate methods with a few example studies Statistics Address statistical analysis issues Tools Group Develop methods/tools, discuss ideas, share understanding. Develop tools/interfaces in such a way that it is not tied to a particular experiment Usable in ROOT, Python or in C++ Example Algorithms: Neural Networks (Jetnet, MLPfit, …) RaGS (Random Grid Search) PDE (Probability Density Estimation) PCA (Principal Component Analysis) ICA (Independent Component Analysis) Bayesian Fit Markov Chain Monte Carlo (for multivariate Bayesian analysis) Tools Prior to Run2AAG Tools d