maxent: Low-memory Multinomial Logistic Regression with Support for Text Classification

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maxent is an R package with tools for low-memory multinomial logistic regression, also known as maximum entropy. The focus of this maximum entropy classifier is to minimize memory consumption on very large datasets, particularly sparse document-term matrices represented by the tm package. The classifier is based on an efficient C++ implementation written by Dr. Yoshimasa Tsuruoka.

Author
Timothy P. Jurka, Yoshimasa Tsuruoka
Date of publication
2013-11-14 18:03:19
Maintainer
Timothy P. Jurka <tpjurka@ucdavis.edu>
License
GPL-3
Version
1.3.3.1

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Man pages

as.compressed.matrix
converts a tm DocumentTermMatrix or TermDocumentMatrix into a...
load.model
loads a maximum entropy model from a file.
maxent
trains a maximum entropy model given a training matrix and a...
maxent-class
an S4 class containing the trained maximum entropy model.
maxent-package
Low-memory Multinomial Logistic Regression with Support for...
NYTimes
a sample dataset containing labeled headlines from The New...
predict.maxent
predicts the expected label of a document given a trained...
save.model
saves a maximum entropy model to a file.
tune.maxent
fits a maximum entropy model given a training matrix and a...
USCongress
a sample dataset containing labeled bills from the United...

Files in this package

maxent
maxent/src
maxent/src/Makevars
maxent/src/owlqn.cpp
maxent/src/mathvec.h
maxent/src/maxent.h
maxent/src/sgd.cpp
maxent/src/rmaxent.cpp
maxent/src/lbfgs.cpp
maxent/src/Makevars.win
maxent/src/maxent.cpp
maxent/src/lbfgs.h
maxent/NAMESPACE
maxent/data
maxent/data/datalist
maxent/data/USCongress.csv.gz
maxent/data/NYTimes.csv.gz
maxent/R
maxent/R/load.model.R
maxent/R/maxent.R
maxent/R/tune.maxent.R
maxent/R/predict.maxent.R
maxent/R/save.model.R
maxent/R/as.compressed.matrix.R
maxent/R/zzz.R
maxent/MD5
maxent/DESCRIPTION
maxent/ChangeLog
maxent/man
maxent/man/save.model.Rd
maxent/man/as.compressed.matrix.Rd
maxent/man/tune.maxent.Rd
maxent/man/predict.maxent.Rd
maxent/man/maxent.Rd
maxent/man/maxent-class.Rd
maxent/man/USCongress.Rd
maxent/man/maxent-package.Rd
maxent/man/NYTimes.Rd
maxent/man/load.model.Rd