Detailed Information on Publication Record
2010
Speeding Up Latent Semantic Analysis: A Streamed Distributed Algorithm for SVD Updates
ŘEHŮŘEK, RadimBasic information
Original name
Speeding Up Latent Semantic Analysis: A Streamed Distributed Algorithm for SVD Updates
Authors
ŘEHŮŘEK, Radim (203 Czech Republic, guarantor, belonging to the institution)
Edition
Portugal, Proceedings of the 3rd International Conference on Agents and Artificial Intelligence (ICAART), p. 446-451, 6 pp. 2010
Publisher
INSTICC Press
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10000 1. Natural Sciences
Country of publisher
Italy
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/00216224:14330/10:00047038
Organization unit
Faculty of Informatics
ISBN
978-989-8425-40-9
Keywords in English
svd lda lsi
Tags
International impact, Reviewed
Změněno: 28/2/2011 05:41, RNDr. Radim Řehůřek, Ph.D.
Abstract
V originále
The purpose of Latent Semantic Analysis (LSA) is to find hidden (latent) structure in a collection of texts represented in the Vector Space Model. LSA was introduced in~\cite{deerwester1990indexing} and has since become a standard tool in the field of Natural Language Processing and Information Retrieval. At the heart of LSA lies the \emph{Singular Value Decomposition} algorithm, which makes LSA (sometimes also called Latent Semantic Indexing, or LSI) really just another member of the broad family of applications that make use of SVD's robust and mathematically well-founded approximation capabilities, from Image Processing; or Signal Processing, where SVD is commonly used to separate signal from noise. SVD is also used in solving shift-invariant differential equations, in Geophysics, in Antenna Array Processing, \ldots}. In this way, although we will discuss our results in the perspective and terminology of LSA and Natural Language Processing, our results are in fact applicable to a wide range of problems and domains across much of the field of Computer Science.
Links
LC536, research and development project |
|