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Journal ArticleDOI

Methods of combining multiple classifiers and their applications to handwriting recognition

Lei Xu, +2 more
- Vol. 22, Iss: 3, pp 418-435
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TLDR
On applying these methods to combine several classifiers for recognizing totally unconstrained handwritten numerals, the experimental results show that the performance of individual classifiers can be improved significantly.
Abstract
Possible solutions to the problem of combining classifiers can be divided into three categories according to the levels of information available from the various classifiers. Four approaches based on different methodologies are proposed for solving this problem. One is suitable for combining individual classifiers such as Bayesian, k-nearest-neighbor, and various distance classifiers. The other three could be used for combining any kind of individual classifiers. On applying these methods to combine several classifiers for recognizing totally unconstrained handwritten numerals, the experimental results show that the performance of individual classifiers can be improved significantly. For example, on the US zipcode database, 98.9% recognition with 0.90% substitution and 0.2% rejection can be obtained, as well as high reliability with 95% recognition, 0% substitution, and 5% rejection. >

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Citations
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Book ChapterDOI

An ensemble approach for data fusion with learn

TL;DR: This paper presents Learn++ as an addition to the new breed of classifier fusion algorithms, along with preliminary results obtained on two real-world data fusion applications.
Proceedings ArticleDOI

Off-line handwritten Chinese character recognition based on crossing line feature

TL;DR: A new method to extract crossing line features for off-line handwritten Chinese character recognition is proposed, in which the input pattern is nonlinearly normalized in order to compensate for shape variations.
Journal ArticleDOI

Flexible nonlinear contextual classification

TL;DR: The framework integrates classical and recent models for image classification, ranging from a multivariate Gaussian classifier, to MLP neural nets, classification trees and recent regression models based on general additive models, and combines them with a Markov random field for spatial context.
Journal ArticleDOI

Automatic Detection of Expanding H I Shells in the Canadian Galactic Plane Survey Data

TL;DR: In this paper, an automatic detector for H I shells is presented, based on the more stable dynamical characteristics of expanding bubbles with radii <40 pc, which can be used to identify the dynamical signature of an expanding bubble in the velocity spectra of 21 cm data.
DissertationDOI

Multiple classifier systems incorporating uncertainty

TL;DR: The inclusion of uncertain class information into multi classifier systems (MCS) is the central theme in this thesis and formal uncertainty theories are assessed regarding their aptitude to support the core flavours of uncertainty in MCS: vagueness, imprecision, and certainty.
References
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Book

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TL;DR: Probabilistic Reasoning in Intelligent Systems as mentioned in this paper is a complete and accessible account of the theoretical foundations and computational methods that underlie plausible reasoning under uncertainty, and provides a coherent explication of probability as a language for reasoning with partial belief.
Book

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Journal ArticleDOI

Statistical and structural approaches to texture

TL;DR: This survey reviews the image processing literature on the various approaches and models investigators have used for texture, including statistical approaches of autocorrelation function, optical transforms, digital transforms, textural edgeness, structural element, gray tone cooccurrence, run lengths, and autoregressive models.
Journal ArticleDOI

An introduction to hidden Markov models

TL;DR: The purpose of this tutorial paper is to give an introduction to the theory of Markov models, and to illustrate how they have been applied to problems in speech recognition.