From-below approximations in Boolean matrix factorization: Geometry and new algorithm
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33155571" target="_blank" >RIV/61989592:15310/15:33155571 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S002200001500063X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S002200001500063X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jcss.2015.06.002" target="_blank" >10.1016/j.jcss.2015.06.002</a>
Alternative languages
Result language
angličtina
Original language name
From-below approximations in Boolean matrix factorization: Geometry and new algorithm
Original language description
We present new results on Boolean matrix factorization and a new algorithm based on these results. The results emphasize the significance of factorizations that provide from-below approximations of the input matrix. While the previously proposed algorithms do not consider the possibly different significance of different matrix entries, our results help measure such significance and suggest where to focus when computing factors. An experimental evaluation of the new algorithm on both synthetic and real data demonstrates its good performance in terms of good coverage by the first few factors as well as a small number of factors needed for an almost exact decomposition and indicates that the algorithm outperforms the available ones in these terms. We alsopropose future research topics.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
IN - Informatics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Computer and System Sciences
ISSN
0022-0000
e-ISSN
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Volume of the periodical
81
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
"1678-1697"
UT code for WoS article
000360777200019
EID of the result in the Scopus database
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