OcrV1, Main, Exploration, bibRecord, 000093

Probability Models for Open Set Recognition.

Identifieur interne : 000093 ( Main/Exploration ); précédent : 000092; suivant : 000094

Probability Models for Open Set Recognition.

Auteurs : Walter J. Scheirer ; Lalit P. Jain ; Terrance E. Boult

Source :

IEEE transactions on pattern analysis and machine intelligence [ 1939-3539 ] ; 2014.

RBID : pubmed:26353070

Abstract

Real-world tasks in computer vision often touch upon open set recognition: multi-class recognition with incomplete knowledge of the world and many unknown inputs. Recent work on this problem has proposed a model incorporating an open space risk term to account for the space beyond the reasonable support of known classes. This paper extends the general idea of open space risk limiting classification to accommodate non-linear classifiers in a multiclass setting. We introduce a new open set recognition model called compact abating probability (CAP), where the probability of class membership decreases in value (abates) as points move from known data toward open space. We show that CAP models improve open set recognition for multiple algorithms. Leveraging the CAP formulation, we go on to describe the novel Weibull-calibrated SVM (W-SVM) algorithm, which combines the useful properties of statistical extreme value theory for score calibration with one-class and binary support vector machines. Our experiments show that the W-SVM is significantly better for open set object detection and OCR problems when compared to the state-of-the-art for the same tasks.

DOI: 10.1109/TPAMI.2014.2321392
PubMed: 26353070

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en">Real-world tasks in computer vision often touch upon open set recognition: multi-class recognition with incomplete knowledge of the world and many unknown inputs. Recent work on this problem has proposed a model incorporating an open space risk term to account for the space beyond the reasonable support of known classes. This paper extends the general idea of open space risk limiting classification to accommodate non-linear classifiers in a multiclass setting. We introduce a new open set recognition model called compact abating probability (CAP), where the probability of class membership decreases in value (abates) as points move from known data toward open space. We show that CAP models improve open set recognition for multiple algorithms. Leveraging the CAP formulation, we go on to describe the novel Weibull-calibrated SVM (W-SVM) algorithm, which combines the useful properties of statistical extreme value theory for score calibration with one-class and binary support vector machines. Our experiments show that the W-SVM is significantly better for open set object detection and OCR problems when compared to the state-of-the-art for the same tasks.</div>
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Probability Models for Open Set Recognition.

Probability Models for Open Set Recognition.

Source :

Abstract

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Le document en format XML

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