lsa: Latent Semantic Analysis

The basic idea of latent semantic analysis (LSA) is, that text do have a higher order (=latent semantic) structure which, however, is obscured by word usage (e.g. through the use of synonyms or polysemy). By using conceptual indices that are derived statistically via a truncated singular value decomposition (a two-mode factor analysis) over a given document-term matrix, this variability problem can be overcome.

Version:	0.73.4
Depends:	SnowballC
Suggests:	tm
Published:	2026-01-11
DOI:	10.32614/CRAN.package.lsa
Author:	Fridolin Wild [aut, cre]
Maintainer:	Fridolin Wild <wild at brookes.ac.uk>
License:	GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation:	no
Materials:	ChangeLog
In views:	NaturalLanguageProcessing
CRAN checks:	lsa results

Documentation:

Reference manual:

lsa.html , lsa.pdf

Downloads:

Package source:	lsa_0.73.4.tar.gz
Windows binaries:	r-devel: lsa_0.73.4.zip, r-release: lsa_0.73.4.zip, r-oldrel: lsa_0.73.4.zip
macOS binaries:	r-release (arm64): lsa_0.73.4.tgz, r-oldrel (arm64): lsa_0.73.4.tgz, r-release (x86_64): lsa_0.73.4.tgz, r-oldrel (x86_64): lsa_0.73.4.tgz
Old sources:	lsa archive

Reverse dependencies:

Reverse depends:	AurieLSHGaussian, LSAfun
Reverse imports:	conversim, CoreGx, DTWBI, DTWUMI, GeneNMF, IBCF.MTME, MD2sample, OmicsQC, OutSeekR, RESOLVE, SemanticDistance, WordListsAnalytics
Reverse suggests:	quanteda, quanteda.textmodels, Signac

Linking:

Please use the canonical form https://CRAN.R-project.org/package=lsa to link to this page.