BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:UNU.RAN - A library for Universal Non-Uniform RANdom variate gener ators DTSTART;VALUE=DATE-TIME:20070328T090000Z DTEND;VALUE=DATE-TIME:20070328T093000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-56@cern.ch DESCRIPTION:Speakers: LEYDOLD\, Josef (Univ Vienna)\nROOT like other libra ries for scientific computing provide routines especially tailored for sam pling from standard distributions\, e.g. the Gaussian distribution. This a pproach provides fast and easy to use algorithms for frequently used distr ibutions. However\, for specialized simulation problems or for sampling fr om non-standard distributions there are only a few algorithm which provide approximate solutions. The UNU.RAN library for non-uniform random variate s is based on the idea of universal (also called black-box) methods. A sin gle piece of code which is implemented and tested only once can generate f rom many target distributions. The user has to provide some information li ke the density function and sometimes the mode. The resulting routines are exact\, carefully tested\, quite fast\, and often they do not depend on t he target distribution. In this talk we explain the design principles of t he UNU.RAN library and show by means of some examples how it can be used w ithin ROOT.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=56&c onfId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=56&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Lunch Break DTSTART;VALUE=DATE-TIME:20070326T100000Z DTEND;VALUE=DATE-TIME:20070326T120000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-54@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=54&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=54&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Lunch break DTSTART;VALUE=DATE-TIME:20070328T105000Z DTEND;VALUE=DATE-TIME:20070328T120000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-42@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=42&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=42&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:ROOT Graphics DTSTART;VALUE=DATE-TIME:20070327T083000Z DTEND;VALUE=DATE-TIME:20070327T085000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-22@cern.ch DESCRIPTION:Speakers: COUET\, Olivier (CERN/SFT)\nCurrent status of the RO OT graphics including the more recent developments in 2D representations a nd the latest developments in the 3D area based on OpenGL.\n\nhttp://indic o.cern.ch/contributionDisplay.py?contribId=22&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=22&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:The Alice AOD analysis model DTSTART;VALUE=DATE-TIME:20070328T130000Z DTEND;VALUE=DATE-TIME:20070328T133000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-43@cern.ch DESCRIPTION:Speakers: CARMINATI\, Federico (CERN/Alice)\nThe talk will des cribe the ALICE analysis model and in particular the usage and structure o f AODs. As most of the analysis will be performed with these objects\, bot h on the Grid and locally\, with or without PROOF\, their structure and fu nctionality is critical for the performance of the analysis of the experim ent. The talk will describe the particular choices made for the structure of the AODs and the first results of their usage in different conditions.\ n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=43&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=43&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:PROOF use in the Alice CAF + demo DTSTART;VALUE=DATE-TIME:20070327T153000Z DTEND;VALUE=DATE-TIME:20070327T160000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-34@cern.ch DESCRIPTION:Speakers: GROSSE-OETRINGHAUS\, Jan Fiete (CERN/Alice)\nALICE a t the LHC plans to use a cluster at CERN (CAF - Cern Analysis Facility) fo r fast analysis of first data as well as calibration and alignment. A test setup consisting of 40 machines exists for evaluation since May 2006. PRO OF enables the distributed usage and xrootd the access to locally distribu ted files. The talk will present the current setup\, performance tests tha t have been done and future plans. The integration of PROOF into ALICE\\'s software framework (AliRoot) will be shown in a demo.\n\nhttp://indico.ce rn.ch/contributionDisplay.py?contribId=34&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=34&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:QtRoot project status and examples of its use at STAR DTSTART;VALUE=DATE-TIME:20070327T091000Z DTEND;VALUE=DATE-TIME:20070327T093000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-24@cern.ch DESCRIPTION:Speakers: FINE\, Valeri (BNL/Star)\nThe talk present the curre nt status and overview of the QtRoot project that is split in two major su bsystems\, namely Qt-layer (avaiable from CERN ROOT ) and Qt-Extension (av ailable from BNL) Each component of each subsystem is an Qt-based implemen tation of the existent ROOT abstract interface. Such approach makes the en d-user code independent of either Qt or ROOT built-in implementations of t he said interfaces. The QtRoot can be build against of X11 or Win32 or \\" native\\" MAC version of Qt with the regular Qt \\"qmake\\" utility and no change to the package source codes. The various examples of the STAR appl ications for offline production\, online monitoring and the detector simul ation will also be presented.\n\nhttp://indico.cern.ch/contributionDisplay .py?contribId=24&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=24&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Event Visualization Environment of the ALICE experiment DTSTART;VALUE=DATE-TIME:20070327T093000Z DTEND;VALUE=DATE-TIME:20070327T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-25@cern.ch DESCRIPTION:Speakers: TADEL\, Matevz (CERN/Alice)\nThe foundation of the f ramework is based on ROOT and its GUI\, 2D & 3D graphics classes. A small application kernel provides for registration and management of visualizati on objects and CINT scripts are used as an extensible mechanism for data e xtraction\, selection and processing as well as for steering of frequent e vent-related tasks. Several new components\, frequently needed for visuali zation of event related data\, including raw-data visualization\, have bee n developed.\n\nALICE specific part of EVE is rather minimalistic\, mostly due to the fact that ALICE uses ROOT's data-management facilities for dat a-storage. It consists mostly of CINT scripts that perform filling and reg istration of visualization data-structures. A small number of compiled cla sses is needed for very specific tasks (e.g. for interface to ALICE event- data management system\, for TPC raw-data visualization\, etc).\n\nA demon stration of the system will be given.\n\nhttp://indico.cern.ch/contributio nDisplay.py?contribId=25&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=25&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Lunch break DTSTART;VALUE=DATE-TIME:20070327T103000Z DTEND;VALUE=DATE-TIME:20070327T120000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-26@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=26&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=26&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Pyroot: developments DTSTART;VALUE=DATE-TIME:20070327T120000Z DTEND;VALUE=DATE-TIME:20070327T123000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-27@cern.ch DESCRIPTION:Speakers: LAVRIJSEN\, Wim (LBL/Atlas)\nAutomated Inner Loop Op timization in Python Python does not\, as a rule\, allow many optimization s\, because there are too many things that can change dynamically. However \, in a lot of ROOT analysis work (e.g. plotting\, fitting\, and looping o ver TTrees)\, code blocks are used in a logically immutable way and called many times. Then\, optimizations normally reserved to static programming languages can also be applied to Python. In this presentation\, I will sho w how this is accomplished automatically in PyROOT.\n\nhttp://indico.cern. ch/contributionDisplay.py?contribId=27&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=27&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:the ROOT GUI Builder: Status\, Plans and demo DTSTART;VALUE=DATE-TIME:20070327T130000Z DTEND;VALUE=DATE-TIME:20070327T133000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-20@cern.ch DESCRIPTION:Speakers: BELLENOT\, Bertrand (CERN/SFT)\nhe ROOT GUI builder provides graphical user-interface (GUI) tools for developing user interfac es based on the ROOT GUI classes. It includes over 30 advanced widgets and has as a goal to offer the complete set of features needed for developing GUI projects. It gives developers an effective object-oriented developmen t environment and accelerates the GUI development life cycles. The generat ed GUI can be saved at any time in a C macro file. The new version of the GUI builder has a new look and better appearance. Presentation of current status with a demo.\n\nEmbedding ROOT in external applications/frameworks/ toolkits\n\nPresentation of the few steps and conditions needed to create an application using any toolkit as QT\, FOX\, or MFC\, with an embedded R OOT canvas. With short demos.\n\nhttp://indico.cern.ch/contributionDisplay .py?contribId=20&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=20&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Break & Posters DTSTART;VALUE=DATE-TIME:20070327T080000Z DTEND;VALUE=DATE-TIME:20070327T083000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-21@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=21&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=21&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:TEntryList: A new class to support large and scalable event lists DTSTART;VALUE=DATE-TIME:20070326T140000Z DTEND;VALUE=DATE-TIME:20070326T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-48@cern.ch DESCRIPTION:Speakers: KRESHUK\, Anna (CERN/SFT)\nTEntryList is a class rec ently introduced in the Tree library. It is a nice alternative to TEventli st.\nThe new class is designed to support a large set of event lists in a modular way.\nTEntryList objects can easily be combined when processing la rge chains of event data.\nThe data structure is optimum for the two extre me cases of high or low selectivity.\n\nhttp://indico.cern.ch/contribution Display.py?contribId=48&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=48&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:3D graphics with OpenGL: recent improvements and plans DTSTART;VALUE=DATE-TIME:20070327T085000Z DTEND;VALUE=DATE-TIME:20070327T091000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-23@cern.ch DESCRIPTION:Speakers: TADEL\, Matevz (CERN/Alice)\nLast year's changes in ROOT's 3D graphics with OpenGL can be divided in two main lines of work. F irst\, there were many new renderers implemented for 2D histograms\, funct ions and parametric surfaces that allow these objects to be rotated\, clip ped and projected in real-time. Second\, OpenGL viewer was extended to aut omatically instantiate external rendering objects from user-provided class to achieve maximum level of flexibility. These objects remain in viewer's memory-cache during scene-updates and thus reduce the cost of the scene r efresh when only a few objects actually change.\n\nOpenGL rendering infras tructure has just undergone a major re-modularization that allows free mix ing of 2D and 3D graphics and makes implementation of ROOT canvas in pure GL possible. Scene representation was removed from inside of the viewer\, allowing scene-data to be shared among several viewers and providing for n atural implementation of multi-view canvas layouts. Via extensions of the TVirtualViewer3D API a finer\, per-object control over scene-updates is av ailable to the user\, allowing overhead-free maintenance of dynamic 3D sce nes. User-input handling was modularized as well\, making it easy to write application-specific scene navigation\, selection handling and tool manag ement.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=23&confId =13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=23&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:The LHCb AOD model DTSTART;VALUE=DATE-TIME:20070328T143000Z DTEND;VALUE=DATE-TIME:20070328T150000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-46@cern.ch DESCRIPTION:Speakers: FRANK\, Markus (CERN/LHCb)\nThe presentation will il lustrate the LHCb analysis model. Starting with a short overview of the d ata processing chain\, the datasets physicists use for the extraction of physics quantities (FullDST) will be presented. These datasets\, which are expected to be replicated on all TIER1 centers will consist of several st reams defined by the different physics working groups. The talk will descr ibe the interactive and batch usage as well as the creation mechanism and the expected size of the different FullDST streams.\n\nhttp://indico.cern. ch/contributionDisplay.py?contribId=46&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=46&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:The MadTools/StatTools package DTSTART;VALUE=DATE-TIME:20070328T100000Z DTEND;VALUE=DATE-TIME:20070328T103000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-47@cern.ch DESCRIPTION:Speakers: QUAYLE\, William (Wisconsin/Atlas)\nThe MadTools/Sta tTools package provides a unified interface for several methods to perform single-channel and multiple-channel confidence level calculations. We br iefly review the general structure of the code and the algorithms already implemented\, and we discuss efforts presently underway to incorporate fit -based confidence level calculations.\n\nhttp://indico.cern.ch/contributio nDisplay.py?contribId=47&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=47&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:The CMS AOD model DTSTART;VALUE=DATE-TIME:20070328T140000Z DTEND;VALUE=DATE-TIME:20070328T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-45@cern.ch DESCRIPTION:Speakers: LISTA\, Luca (INFN Napoli/CMS)\nCMS experiment uses ROOT as storage technology for all its data formats. Interactive access i s foreseen both in bare-ROOT mode and with loading of data formats shared libraries. The extensibility and modularity of CMS data formats and the n ative interactive capabilities make CMS event data model a suitable medium for data analysis from batch processing to interactive plots.\n\nhttp://i ndico.cern.ch/contributionDisplay.py?contribId=45&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=45&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:The ALICE Online Data Quality Monitoring Framework DTSTART;VALUE=DATE-TIME:20070327T072000Z DTEND;VALUE=DATE-TIME:20070327T074000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-28@cern.ch DESCRIPTION:Speakers: ROUKOUTAKIS\, Filimon (CERN/Alice)\nALICE is one of the experiments under installation at CERN Large Hadron Collider\, dedicat ed to the study of Heavy-Ion Collisions. The final ALICE Data acquisition system has been installed and is being used for the testing and commission ing of detectors. The Online Data Quality monitoring is an important part of the DAQ software framework (DATE). In this presentation we overview the implementation and usage experience of the interactive tool MOOD used for the commissioning period of ALICE and we present an architectural preview of the upcoming Data Quality Monitoring framework\, a distributed applica tion aimed to collect\, analyze\, visualize and store monitoring data in a large\, experiment wide scale.\n\nhttp://indico.cern.ch/contributionDispl ay.py?contribId=28&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=28&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:GENDARC\, the Geel Neutron physics data acquisition DTSTART;VALUE=DATE-TIME:20070327T074000Z DTEND;VALUE=DATE-TIME:20070327T080000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-29@cern.ch DESCRIPTION:Speakers: FABRY\, Imrich (GEEL)\nGENDARC\, the Geel Neutron ph ysics data acquisition\, analysis and run control program\, based on the o bject-oriented framework ROOT\, has been started in the EC-JRC-Institute o f Reference Materials and Measurements in Geel\, Belgium. On the one hand\ , the program improves existing data acquisition\, monitoring and data ana lysis capabilities with respect to existing analogue electronics used in n uclear measurements. On the other hand\, it is extended to use new digital hardware in the form of Waveform Digitizers for measuring physical quanti ties with digital signal processing (DSP) methods to reconstruct and analy se them. At the same time it allows the re-use of existing analysis proced ures already used in publications due to a specially created C++ -software interface.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=29&c onfId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=29&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Roofit: status and plans DTSTART;VALUE=DATE-TIME:20070328T120000Z DTEND;VALUE=DATE-TIME:20070328T123000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-40@cern.ch DESCRIPTION:Speakers: VERKERKE\, Wouter (NIKHEF/Atlas)\nThe RooFit package is an advanced data modeling language for the ROOT environment. It repres ents modeling concepts such as observables\, parameters and probability de nsity functions as C++ objects and provides operator objects for addition\ , multiplication\, convolution etc to to build data models of arbitrary co mplexity. In my presentation I will focus on a number of recent redesign a ctivities that include new project management tools that incorporate past user experience from BaBar on building complex analyses. These new tools also provide the interface for the high-level statistical analysis packag e RooStats that is currently being designed.\n\nhttp://indico.cern.ch/cont ributionDisplay.py?contribId=40&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=40&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:RooStats: A high-level statistical framework based on RooFit DTSTART;VALUE=DATE-TIME:20070328T123000Z DTEND;VALUE=DATE-TIME:20070328T130000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-41@cern.ch DESCRIPTION:Speakers: CRANMER\, Kyle (BNL/Atlas)\nThe LHC has enormous dis covery potential and poses many new statistical challenges. We will revie w the requirements for statistical toolkit for the LHC experiments\, inclu ding the ability to combine the results of multiple measurements\, incorpo rate systematic uncertainty\, and facilitate the technical aspects of shar ing code. In recent years\, several statistical methods have been propose d to incorporate systematic uncertainty ranging from Bayesian\, to fully F requentist\, to hybrid techniques. It will be shown that these various me thods can have quite different properties\, which makes it imperative that the toolkit allows for one to simultaneously evaluate the same problem wi th multiple techniques. With these considerations in mind\, we set out to develop a statistical toolkit for ROOT. The RooFit package has a large u ser community and an abstract PDF class that can support both Bayesian and Frequentist interpretations\; thus\, we decided to base the statistical t oolkit on the existing RooFit components and call the package RooStats. F inally\, we will give some examples and outline our plans for further deve lopment.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=41&conf Id=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=41&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Registration DTSTART;VALUE=DATE-TIME:20070326T060000Z DTEND;VALUE=DATE-TIME:20070326T070000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-5@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=5&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=5&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:CINT and Reflex merge DTSTART;VALUE=DATE-TIME:20070326T073000Z DTEND;VALUE=DATE-TIME:20070326T080000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-7@cern.ch DESCRIPTION:Speakers: NAUMANN\, Axel (CERN/SFT)\nThe internals of the CINT interpreter is currently restructured. The (C array) way it stores its in formation about available types\, functions\, and members is replaced by a C++ library called Reflex. We present the benefits for speed\, usability\ , and maintenance\, the current implementation\, and the planned schedule for making this new version of CINT the default.\n\nWe also present our pl anned changes for the next 18 months: removal of function wrappers\, persi stency of the dictionary in ROOT files\, and on-the-fly dictionary generat ion. All of this will considerably improve the ease of use\, library sizes \, and compile time.\n\nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=7&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=7&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:ROOT: Development status and the roadmap DTSTART;VALUE=DATE-TIME:20070326T070000Z DTEND;VALUE=DATE-TIME:20070326T073000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-6@cern.ch DESCRIPTION:Speakers: BRUN\, Rene (CERN/SFT)\nThe major developments since the previous workshop will be summarized and the current development road map will be presented.\n\nhttp://indico.cern.ch/contributionDisplay.py?con tribId=6&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=6&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Infrastructure changes DTSTART;VALUE=DATE-TIME:20070326T082000Z DTEND;VALUE=DATE-TIME:20070326T084000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-9@cern.ch DESCRIPTION:Speakers: RADEMAKERS\, Fons (CERN/SFT)\nReview of what has cha nged in the ROOT infrastructure since the last workshop. Topics that will be covered include the plugin manager\, rootmap files\, library organizati on\, new plugins\, new platforms\, optimizations\, code management and bui ld system improvements\, packaging\, etc.\n\nhttp://indico.cern.ch/contrib utionDisplay.py?contribId=9&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=9&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Break & Posters DTSTART;VALUE=DATE-TIME:20070326T080000Z DTEND;VALUE=DATE-TIME:20070326T082000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-8@cern.ch DESCRIPTION:Speakers: \nSeveral posters will be presented in the coffee br eak room\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=8&confI d=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=8&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Usage of ROOT geometry with GEANT4 DTSTART;VALUE=DATE-TIME:20070328T080000Z DTEND;VALUE=DATE-TIME:20070328T083000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-35@cern.ch DESCRIPTION:Speakers: GHEATA\, Andrei (CERN/Alice)\nA new interface G4ROOT was recently introduced in ROOT. This allows running GEANT4-based simulat ions using TGeo geometry and navigation. The presentation will cover the i nterface usage and recent results in the context of ALICE GEANT4 simulatio n framework.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=35& confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=35&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:FairRoot\, Simulation and analysis framework DTSTART;VALUE=DATE-TIME:20070328T072000Z DTEND;VALUE=DATE-TIME:20070328T074000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-39@cern.ch DESCRIPTION:Speakers: BERTINI\, Denis (GSI)\nThe CbmRoot framework\, origi nally developed for the CBM collaboration is now used by other FAIR experi ments at the GSI. The framework is now renamed to FairRoot. The status and usage of this VMC based framework will be presented.\n\nhttp://indico.cer n.ch/contributionDisplay.py?contribId=39&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=39&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Improvements in the Reference Manual and the THtml doc generator DTSTART;VALUE=DATE-TIME:20070326T093000Z DTEND;VALUE=DATE-TIME:20070326T095000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-12@cern.ch DESCRIPTION:Speakers: NAUMANN\, Axel (CERN/SFT)\nROOT's documentation syst em has been renovated a bit. We will show what the new ingredients are\, h ow they work\, and how you can document your own libraries with THtml\, in cluding customized layout\, module documentation\, and cross-library refer encing. We will also present some of THtml's tools that can help write bet ter code.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=12&con fId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=12&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:From ROOT to BOOT\, from BOOT to ROOT DTSTART;VALUE=DATE-TIME:20070326T084000Z DTEND;VALUE=DATE-TIME:20070326T092500Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-11@cern.ch DESCRIPTION:Speakers: BRUN\, Rene (CERN/SFT)\nThe ROOT system is currently undergoing an important evolution. The aim is to provide a very small ker nel\, called BOOT\, easy to install on all systems and very stable. Using the BOOT executable module\, all the other ROOT libraries (and later on us ers and experiments code) will be automatically imported via the web from central source repositories. This should greatly facilitate the installati on of the system on a new computer and provide automatic updates too. The following 3 phases of the project have been defined:\n\n-Phase 1: Restruct uring of the CORE ROOT framework such that only a small subset will be req uired to start a running ROOT application (including user libraries). This phase is well advanced and will be presented in details. Thanks to this f irst phase\, the virtual address space required by the interactive version has been reduced by a factor 2.\n\n-Phase 2: Instead of generating (via r ootcint) the code for the dictionaries that can represent a substantial fr action of the total code to be compiled and linked\, the dictionary inform ation will be written to small ROOT files stored together with the shared libraries. In particular the CINT interface stubs to call compiled code wi ll be replaced by generic inline calls. The dictionaries will be loaded fr om the ROOT files only when really necessary. This will also minimize the amount of information to be stored in memory and it will decrease substant ially the size of the shared libraries\, in particular in case of template d classes.\n\n-Phase 3: Autoloading of the code on demand from a central s ource repository and online compilation of the code with local storage(cac he) of the compiled code. This will facilitate considerably the installati on of new versions. This feature will become important in the future when the percentage of code really used in a running application will be a very small subset of the total code in the source repository (or currently sha red libraries). I will discuss the implications of this Phase when conside ring the C++ language evolution or interface with other languages.\n\nhttp ://indico.cern.ch/contributionDisplay.py?contribId=11&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=11&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Web based HEP Analysis powered by Ajax DTSTART;VALUE=DATE-TIME:20070326T120000Z DTEND;VALUE=DATE-TIME:20070326T123000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-10@cern.ch DESCRIPTION:Speakers: SARKAR\, Subir (INFN/CMS)\nAjax is a web development technique that empowers web pages with the richness and interactivity usu ally found in desktop applications\, thus significantly enhancing the user experience. In this talk we shall outline the Ajax processing model and p resent an online analysis tool based on a simple pattern where the present ation layer is an intuitive User Interface and the server side is a CGI pr ogram that uses Root for the analysis.\n\nhttp://indico.cern.ch/contributi onDisplay.py?contribId=10&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=10&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Math Libs developments and restructure DTSTART;VALUE=DATE-TIME:20070326T123000Z DTEND;VALUE=DATE-TIME:20070326T130000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-13@cern.ch DESCRIPTION:Speakers: MONETA\, Lorenzo (CERN/SFT)\nAn overview of the rece nt developments\, compared to the last workshop\, of the ROOT Math librari es will be presented. The functionality and the design of the new Math pac kages will be described in detail together with the planned improvements and re-structuring of the previously existing ROOT classes to use the new mathematical algorithms.\n\nhttp://indico.cern.ch/contributionDisplay.py? contribId=13&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=13&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Break DTSTART;VALUE=DATE-TIME:20070328T083000Z DTEND;VALUE=DATE-TIME:20070328T090000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-38@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=38&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=38&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:News in ROOT I/O DTSTART;VALUE=DATE-TIME:20070326T130000Z DTEND;VALUE=DATE-TIME:20070326T133000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-15@cern.ch DESCRIPTION:Speakers: CANAL\, Philippe (FNAL/CD)\nFor the last several mon ths the main focus of development in the ROOT I/O package has been consoli dation. In addition to reducing the coupling with the core module and be coming its owns library (libRIO) (See separate talk on the restructuration of the ROOT libraries)\, the I/O package has been enhanced in the area o f XML and SQL support\, thread safetly\, schema evolution and TTreeFormul a\, and many other areas. We will also review a few new utilities\, incl uding a generic mechanism for object references and a faster implementatio n of TTree cloning.\n\nhttp://indico.cern.ch/contributionDisplay.py?contri bId=15&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=15&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Break & Posters DTSTART;VALUE=DATE-TIME:20070326T133000Z DTEND;VALUE=DATE-TIME:20070326T140000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-14@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=14&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=14&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Status of SQL and XML I/O in ROOT DTSTART;VALUE=DATE-TIME:20070326T150000Z DTEND;VALUE=DATE-TIME:20070326T153000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-17@cern.ch DESCRIPTION:Speakers: LINEV\, Sergey (GSI)\nNew developments since last RO OT workshop will be presented. Main topics will be:\n\n * new ODBC driv er\, improvements in MySQL and Oracle plugins\;\n * new TSQLStatement c lass for work with prepared SQL statements and native data types\;\n * new TSQLFile class for storage of ROOT objects in SQL data bases\;\n * support of custom streamers and subdirectories in XML/SQL files\;\n * i mprovements in XML I/O\;\n * practical examples of XML and SQL I/O usag e.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=17&confId=133 56 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=17&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Recent Improvements in the ROOT Tree cache. DTSTART;VALUE=DATE-TIME:20070326T143000Z DTEND;VALUE=DATE-TIME:20070326T150000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-16@cern.ch DESCRIPTION:Speakers: FRANCO\, Leandro (CERN/SFT)\nInteractive analysis of remote data is always limited by the quality of the network\, where the m ain parameters are bandwidth and latency. The former is not usually a prob lem but the latter will always be proportional to the distance between the client and server. The only way to deal with this issue is by minimizing the number of transactions between both sites\, which is usually done by p redicting future requests and transferring them as whole. We will show how we implemented this technique in the new ROOT's cache and how well it wor ks in different conditions.\n\nAnother big improvement for the cache is th e ability to unzip its content in parallel (by using an additional core). This is a direct consequence of the new cache since we need to predict the data that is going to be transfered and unzipped. In the talk\, we will g ive an estimate of the gain we obtain with such algorithm.\n\nhttp://indic o.cern.ch/contributionDisplay.py?contribId=16&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=16&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:User Interface developments in ROOT DTSTART;VALUE=DATE-TIME:20070327T123000Z DTEND;VALUE=DATE-TIME:20070327T130000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-19@cern.ch DESCRIPTION:Speakers: ANTCHEVA\, Ilka (CERN/SFT)\nPresentation about the p rogress made in User Interface developments in ROOT since the last ROOT wo rkshop: \n - New GUI widgets \n - Fit panel \n - Graphics editor improv ements \n - New object editors \n - GUI builder development\n\nhttp://in dico.cern.ch/contributionDisplay.py?contribId=19&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=19&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:The Castor2/xrootd integration -- the details DTSTART;VALUE=DATE-TIME:20070327T140000Z DTEND;VALUE=DATE-TIME:20070327T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-31@cern.ch DESCRIPTION:Speakers: HANUSHEVSKY\, Andy (SLAC)\nScalla\, Structured Clust er Architecture for Low Latency Access\, is widely used to provide data fo r High Energy Physics anlysis. It packages together xrootd and olbd server s to provide a highly scalable online storage system with very low system overhead. While used mainly for the BaBar experiment\, it is quickly gaini ng acceptance in other experiments such as Alice\, GLAST\, and STAR.\n\nTh e Scalla system currently interfaces with HPSS\, RALMSS\, and CLEO/Store i n order to make large stores of archived data transparently available. Two new additions have recently decome available: DPM from G-Lite and Castor. This talk will present detailed information on how the Castor integration was accomplished\, including the high and low points of that integration. \n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=31&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=31&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Break & Posters DTSTART;VALUE=DATE-TIME:20070327T133000Z DTEND;VALUE=DATE-TIME:20070327T140000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-30@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=30&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=30&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:OpRelease\, a framework for event simulation and analysis in OPERA DTSTART;VALUE=DATE-TIME:20070328T070000Z DTEND;VALUE=DATE-TIME:20070328T072000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-36@cern.ch DESCRIPTION:Speakers: MAROTTA\, Alberto (INFN/Opera)\nSince few years\, in the OPERA Collaboration\, a new software framework (OpRelease) has been r ealized. It consists of a set of packages and sub-packages integrated by u sing the CMT tool and fully interfaced to the OPERA ROOT persistent data m odel (OpRData) through an Input/Output standard package called OpIO.\n\nTh e OpRelease framework is based on a modular architecture of Object Oriente d packages\, so that the development of each package can be performed inde pendently of the others and all the improvements can be easily. The softwa re chain takes into account of event simulation (OpSim)\, digitization (Op Digit) and reconstruction (OpRec)\n\nA software model of the OPERA detecto r geometry (OpGeom) has been realized by using ROOT-VMC\, in such a way th e geometry is independent from the choice between GEANT3\, GEANT4 and FLUK A. Last but not least\, the use of the ROOT/TGeomManager class and its ass ociated objects offer the chance to transfer the OPERA detector geometry d escription implemented at any step of the analysis chain.\n\nhttp://indico .cern.ch/contributionDisplay.py?contribId=36&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=36&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:The LHCb Online Data Quality Monitoring Framework DTSTART;VALUE=DATE-TIME:20070327T070000Z DTEND;VALUE=DATE-TIME:20070327T072000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-53@cern.ch DESCRIPTION:Speakers: SOMOGYI\, Peter (CERN/LHCb)\nLHCb is one of the four major experiments under completion at the Large Hadron Collider (LHC). Th e expected data rate at the LHC is so high\, that the majority of events w ill be rejected by the trigger system. Thus the monitoring of the trigger performance and the quality of the data in general is of crucial importanc e. To this end a Data Quality Monitoring project was setup. One part of th is project is the presentation tool for Histograms: the "Histogram Present er"\, which is developed as part of a "Histogramming Framework".\nThe Hist ogram Presenter is one of the main instruments to understand the quality o f the experimental data. The Presenter is fully integrated within the Expe riment's Control System. It allows the visualisation\, in a coherent and u nderstandable manner\, of several thousand histograms and counters as well as displaying warning or alarm messages generated by automatic analysis t ools.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=53&confId= 13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=53&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:xrootd performance improvement DTSTART;VALUE=DATE-TIME:20070326T153000Z DTEND;VALUE=DATE-TIME:20070326T160000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-52@cern.ch DESCRIPTION:Speakers: FURANO\, Fabrizio (INFN/Babar)\nThe aspects related to the performance of the data transfer with an xrootd/Scalla file server cluster has been under constant focus since a while.\nThis presentation gi ves an overview of the new techniques that are exploited in the xrootd cli ent side to enhance its performance in the situations where the network la tency is high. Since the xrootd/Scalla system is not aimed only at moving files\, but gives a way to directly access remote information where it res ides\, the main effort has been given to techniques able to\nenhance the d ata transfer throughput and overlap the access latency and chunk transfer time with the processing phases of the application which needs the data.\n In this talk we shortly describe how multistreamed and asynchronous data t ransfer techniques can be used by data analysis applications or frameworks in a very transparent way.\n\nhttp://indico.cern.ch/contributionDisplay.p y?contribId=52&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=52&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:PROOF: status and perspectives DTSTART;VALUE=DATE-TIME:20070327T150000Z DTEND;VALUE=DATE-TIME:20070327T153000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-33@cern.ch DESCRIPTION:Speakers: GANIS\, Gerardo (CERN/SFT)\nThe goal of PROOF (Paral lel ROOt Facility) is to enable the interactive analysis of distributed da ta sets in a transparent way. PROOF represents an alternative to a batch-o riented usage of a distributed computing system. The system is being succe ssfully used by the PHOBOS experiment since a few years.\n\nIn view of the startup of the LHC analysis PROOF underwent several developments and impr ovements mainly with the purpose to adapt it to the large multi-user analy sis environments found at LHC. The ALICE collaboration has pioneered test- stressing of the system using the first CAF (Central Analysis Facility)\, composed by 40 machines located at CERN. The test-CAF represents a realist ic environment for LHC analysis\, with a non-negligible amount of local di sk space managed by the XROOTD daemon populated with dedicated upload faci lities (e.g. on-demand stage-in from the CASTOR system).\n\nThe ALICE test s have brought in several new developments\, among which:\n\n * augment ation and fine-tuning of package management and environment setting facili ties\;\n * a new "packetizer" (the system element responsible for work distribution) optimizing the load balancing algorithm at the level of a si ngle query\; the new packetizer minimizes network transfers\, reducing hot spots in accessing a specific data server and avoiding in this way bottle neck effects at the end of jobs. A new dynamic way of calculating packet s izes as a time quantum has also been introduced.\n * the integration of the system with a user-scheduling facility with the main purpose of incre asing fairness in the cluster usage and to provide a handle for the implem entation of quota policies.\n\nIn this talk we will describe in detail the status of the new developments and outline the future plans to bring PROO F in production for LHC analysis.\n\nhttp://indico.cern.ch/contributionDis play.py?contribId=33&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=33&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Break DTSTART;VALUE=DATE-TIME:20070328T133000Z DTEND;VALUE=DATE-TIME:20070328T140000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-55@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=55&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=55&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Rediscovering Geane in the VMC as track follower for FairROOT DTSTART;VALUE=DATE-TIME:20070328T074000Z DTEND;VALUE=DATE-TIME:20070328T080000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-37@cern.ch DESCRIPTION:Speakers: FONTANA\, Andrea ()\nGeane is a tool to calculate ex trapolated track parameters and propagated errors through dense materials. It was written in Fortran 15 years ago and still today is successfully us ed by many experiments in connection with Geant3.\n\nThe VMC concept of RO OT is the ideal method to preserve this knowledge and to make it available \, with an updated version\, to ROOT based experiments that can use it in a straighforward way with the ROOT geometry modeler.\n\nThe talk will show how the TGeant3 interface has been extended for the FairROOT framework de veloped at GSI (see talk by M. Al-Turany) to allow the use of Geane in the context of the modern VMC approach. It will also report the experience of the PANDA collaboration regarding its use for the Kalman filter currently in development for the global reconstruction.\n\nhttp://indico.cern.ch/co ntributionDisplay.py?contribId=37&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=37&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:Data access on widely distributed worker nodes with xrootd/SRM DTSTART;VALUE=DATE-TIME:20070327T143000Z DTEND;VALUE=DATE-TIME:20070327T150000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-32@cern.ch DESCRIPTION:Speakers: JAKL\, Pavel (BNL/Star)\nData access on widely distr ibuted worker nodes within ROOT framework Using cheap disks attached to pr ocessing nodes becomes extremely economically beneficial over expensive ce ntralized storage. Nevertheless\, an aggregation of those many distributed storage elements into a single usable pool turned to be problematic. Howe ver\, the ROOT/Xrootd project allows such aggregation with data access opt imization and dynamic population capabilities unique to this package. We w ould like to present a use case of Xrootd in a production environment (RHI C/STAR) data analysis framework its performance monitoring and performance tuning exercise we have applied. We would like to present how\, in produc tion analysis environment\, large amount of widely distributed data is man aged within the ROOT framework using low latency data access software suit e Xrootd/Scalla. The RHIC/STAR use case\, its performance monitoring and p erformance tuning will be explained. Furthermore\, we will present the sta tus of he integration of grid middleware component SRM (Storage resource m anager) in Xrootd for space management. We will give an architectural over view of this solution showing integration of these two technologies as wel l as status of development and testing phase. Our focus would be also orie nted on presenting future plans such as multi-caches support within a one node\, improving access to a mass storage system or interoperability with other SRM-aware tools.\n\nhttp://indico.cern.ch/contributionDisplay.py?con tribId=32&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=32&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:General discussion DTSTART;VALUE=DATE-TIME:20070328T150000Z DTEND;VALUE=DATE-TIME:20070328T160000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-57@cern.ch DESCRIPTION:Speakers: \nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=57&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=57&confId=13356 END:VEVENT BEGIN:VEVENT SUMMARY:TMVA -- Toolkit for Multivariate Data Analysis with ROOT DTSTART;VALUE=DATE-TIME:20070328T093000Z DTEND;VALUE=DATE-TIME:20070328T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T224307Z UID:indico-contribution-13356-50@cern.ch DESCRIPTION:Speakers: VOSS\, Helge (MPI/Heidelberg/Atlas)\nThe use of mach ine learning techniques for the mining of data from high-energy physics ex periments has become more and more popular in recent years. The machine le arning techniques themselves have significantly evolved\, also driven by d evelopments in other areas in and outside science. TMVA is a toolkit (inte grated in ROOT) which implements a large variety of sophisticated multivar iate classification\nalgorithms ranging from rectangular cut optimisation using genetics algorithm and likelihood estimators\, over linear and non-l inear discriminants (neural networks) to more recent developments like boo sted decision\ntrees and rule ensemble fitting. TMVA allows the simultaneo us training\, testing and evaluation of all these classifiers.\n\nhttp://i ndico.cern.ch/contributionDisplay.py?contribId=50&confId=13356 LOCATION: Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=50&confId=13356 END:VEVENT END:VCALENDAR