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Multiple model estimation using SVM-...

Ma, Yunqian.

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Multiple model estimation using SVM-based learning.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Multiple model estimation using SVM-based learning./
作者:	Ma, Yunqian.
面頁冊數:	152 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 5131.
Contained By:	Dissertation Abstracts International64-10B.
標題:	Engineering, Electronics and Electrical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3109360
ISBN:	0496569023

Multiple model estimation using SVM-based learning.
Ma, Yunqian.

Multiple model estimation using SVM-based learning. - 152 p.

Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 5131.

Thesis (Ph.D.)--University of Minnesota, 2003.

Most existing learning algorithms have been developed for standard formulations of the learning problem, such as classification or regression. These standard inductive learning formulations assume that all available (or training) data can be well described by a single statistical model. For example, in classification setting the goal is to estimate a single decision boundary (which may be complex or nonlinear). Likewise, under regression formulation, the goal is to estimate a single target function from finite and noisy data samples. However, there are many applications which naturally lead to learning formulations where the goal is to estimate several models from available (finite) data. For such applications, it may be reasonable to assume that the data is generated by several (unknown) models; however we do not know which model has generated a particular sample. For example, in computer vision, a sequence of video frames may contain several moving objects (with overlapping trajectories), so the problem of multiple motion estimation can be viewed under multiple model estimation framework. For such multiple model estimation problems, the goal of learning is to separate available data into several (disjoint) subsets, and at the same time estimate unknown models corresponding to each subset of data. This project describes several useful multiple model formulations, such as multiple model classification, multiple model regression, and multiple model clustering, and several real-life application settings where multiple model formulation approach can be naturally applied.

ISBN: 0496569023Subjects--Topical Terms:

626636
Engineering, Electronics and Electrical.

Multiple model estimation using SVM-based learning.
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500 $a Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 5131.
500 $a Adviser: Vladimir S. Cherkassky.
502 $a Thesis (Ph.D.)--University of Minnesota, 2003.
520 $a Most existing learning algorithms have been developed for standard formulations of the learning problem, such as classification or regression. These standard inductive learning formulations assume that all available (or training) data can be well described by a single statistical model. For example, in classification setting the goal is to estimate a single decision boundary (which may be complex or nonlinear). Likewise, under regression formulation, the goal is to estimate a single target function from finite and noisy data samples. However, there are many applications which naturally lead to learning formulations where the goal is to estimate several models from available (finite) data. For such applications, it may be reasonable to assume that the data is generated by several (unknown) models; however we do not know which model has generated a particular sample. For example, in computer vision, a sequence of video frames may contain several moving objects (with overlapping trajectories), so the problem of multiple motion estimation can be viewed under multiple model estimation framework. For such multiple model estimation problems, the goal of learning is to separate available data into several (disjoint) subsets, and at the same time estimate unknown models corresponding to each subset of data. This project describes several useful multiple model formulations, such as multiple model classification, multiple model regression, and multiple model clustering, and several real-life application settings where multiple model formulation approach can be naturally applied.
520 $a We also describe a class of constructive learning algorithms for multiple model estimation. The proposed model estimation strategy assumes that the majority of available data is generated by a single model; hence we use robust methodology to estimate this (major) model. We use Support Vector Machine (SVM) based algorithm for robust model estimation. We developed SVM-based algorithms for multiple model regression and multiple model classification. Empirical comparisons performed using several simulated and real-life data sets indicate superior performance of the proposed learning algorithms.
520 $a Finally, this thesis presents new methodology for analytic setting of hyper-parameters for SVM regression. This is important for practical applications of SVM regression in general, and for multiple model regression estimation, in particular.
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