Automatically assigned DDC number: 006312
Manually assigned DDC number: 006312
Number of references: 4
Title: Discovery of Common Subsequences in Cognitive Evoked Potentials
Author:
Subject: Arthur Flexer Discovery of Common Subsequences in Cognitive Evoked Potentials
Description: . This work is about developing a new method for the analysis of evoked potentials of cognitive activities that combines methods from statistics and sequence alignment to tackle the following two problems: the visualization of high dimensional sequential data and the unsupervised discovery of patterns within this multivariate set of real valued time series data. The sequences of the original high dimensional vectors are transformed to discrete sequences by vector quantization plus Sammon mapping of the codebook. Instead of having to conduct a timeconsuming search for common subsequences in the set of multivariate sequential data a multiple sequence alignment procedure can be applied to the set of one-dimensional discrete symbolic time series. The methods are described in detail and the results are shown to be significantly better than those obtained for two sets of randomized artificial data. 1 Introduction This work is part of the development of a new method for the analysis of evoke...
Contributor: The Pennsylvania State University CiteSeer Archives
Publisher: unknown
Date: 1998-09-28
Pubyear: 1998
Format: ps
Identifier: http://citeseer.ist.psu.edu/150946.html
Source: ftp://ftp.ai.univie.ac.at/papers/oefai-tr-98-07.ps.Z
Language: en
Relation:
Relation:
Relation:
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Rights: unrestricted
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