Title
Econo-ESA Reduction Scheme and the Impact of its Index Matrix Density.
Abstract
Econo-ESA is an economic scheme of the explicit semantic analysis (ESA). The scheme properly decreases the ESA index matrix dimensions to achieve faster process with similar results. This paper discusses index matrix dimensional reduction schemes of econo-ESA. We did experiments with several schemes: random selection, k-means clustering, norm-based clustering, densest, and sparsest schemes. Each resulted matrix had different element values and density. Our experimental results showed that the random selection scheme, which had the nearest density to the original index matrix, gave the best results. We thus conclude that the index matrix density is an additional feature which has to be considered in econo-ESA.
Year
DOI
Venue
2014
10.1016/j.procs.2014.08.128
Procedia Computer Science
Keywords
DocType
Volume
econo-ESA,matrix density.
Conference
35
ISSN
Citations 
PageRank 
1877-0509
0
0.34
References 
Authors
10
4
Name
Order
Citations
PageRank
Faisal Rahutomo100.34
Yuki Manabe272.52
Teruaki Kitasuka38215.17
Masayoshi Aritsugi410951.51