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http://hdl.handle.net/2445/53584
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DC Field | Value | Language |
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dc.contributor.author | Casale, Pierluigi | - |
dc.contributor.author | Pujol Vila, Oriol | - |
dc.contributor.author | Radeva, Petia | - |
dc.date.accessioned | 2014-04-24T08:52:02Z | - |
dc.date.available | 2014-04-24T08:52:02Z | - |
dc.date.issued | 2014-02 | - |
dc.identifier.issn | 0031-3203 | - |
dc.identifier.uri | http://hdl.handle.net/2445/53584 | - |
dc.description.abstract | In this work, a new one-class classification ensemble strategy called approximate polytope ensemble is presented. The main contribution of the paper is threefold. First, the geometrical concept of convex hull is used to define the boundary of the target class defining the problem. Expansions and contractions of this geometrical structure are introduced in order to avoid over-fitting. Second, the decision whether a point belongs to the convex hull model in high dimensional spaces is approximated by means of random projections and an ensemble decision process. Finally, a tiling strategy is proposed in order to model non-convex structures. Experimental results show that the proposed strategy is significantly better than state of the art one-class classification methods on over 200 datasets. | - |
dc.format.extent | 11 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier Ltd | - |
dc.relation.isformatof | Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.patcog.2013.08.007 | - |
dc.relation.ispartof | Pattern Recognition, 2014, vol. 47, num. 2, p. 854-864 | - |
dc.relation.uri | http://dx.doi.org/10.1016/j.patcog.2013.08.007 | - |
dc.rights | (c) Elsevier Ltd, 2014 | - |
dc.source | Articles publicats en revistes (Matemàtiques i Informàtica) | - |
dc.subject.classification | Algorismes computacionals | - |
dc.subject.classification | Processament digital d'imatges | - |
dc.subject.classification | Geometria convexa | - |
dc.subject.other | Computer algorithms | - |
dc.subject.other | Digital image processing | - |
dc.subject.other | Convex geometry | - |
dc.title | Approximate polytope ensemble for one-class classification | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 638858 | - |
dc.date.updated | 2014-04-24T08:52:03Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/264738/EU//ICARENET | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Matemàtiques i Informàtica) Publicacions de projectes de recerca finançats per la UE |
Files in This Item:
File | Description | Size | Format | |
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638858.pdf | 1.25 MB | Adobe PDF | View/Open |
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