Separating Signal From Background Using Ensembles of Rules

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Machine learning has emerged as a important tool for separating signal events from associated background in high energy particle physics experiments. This paper describes a new machine learning method based on ensembles of rules. Each rule consists of a conjuction of a small number of simple statements (''cuts'') concerning the values of individual input variables. These rule ensembles produce predictive accuracy comparable to the best methods. However their principal advantage lies in interpretation. Because of its simple form, each rule is easy to understand, as is its influence on the predictive model. Similarly, the degree of relevance of each of ... continued below

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10 pages

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Friedman, J.H. & /SLAC /Stanford U., Phys. Dept. December 1, 2006.

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Machine learning has emerged as a important tool for separating signal events from associated background in high energy particle physics experiments. This paper describes a new machine learning method based on ensembles of rules. Each rule consists of a conjuction of a small number of simple statements (''cuts'') concerning the values of individual input variables. These rule ensembles produce predictive accuracy comparable to the best methods. However their principal advantage lies in interpretation. Because of its simple form, each rule is easy to understand, as is its influence on the predictive model. Similarly, the degree of relevance of each of the respective input variables can be assessed. Graphical representations are presented that can be used to ascertain the dependence of the model jointly on the variables used for prediction.

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10 pages

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  • Prepared for PHYSTATO5: Statistical Problems in Particle Physics, Astrophysics and Cosmology, Oxford, England, United Kingdom, 12-15 Sep 2005

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  • Report No.: SLAC-PUB-12247
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 895817
  • Archival Resource Key: ark:/67531/metadc884569

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  • December 1, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 8, 2016, 10:55 p.m.

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Friedman, J.H. & /SLAC /Stanford U., Phys. Dept. Separating Signal From Background Using Ensembles of Rules, article, December 1, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc884569/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.