NLTK-Lite version 0.9 has been released -- http://nltk.org/index.php
NLTK -- the Natural Language Toolkit -- is a suite of open source Python modules, data and documentation for research and development in natural language processing. NLTK contains code supporting dozens of NLP tasks, along with 30 popular corpora and extensive documentation including a 360-page online book. Distributions for Windows, Mac OSX and Linux are available. The toolkit has been used in 50+ university courses in over 15 countries, and is in the top 0.1% of SourceForge projects (32,000 downloads in the past 12 months). Contents: NLTK consists of over 50k lines of Python code and 480Mb of data: Corpora: Treebanks (English, Chinese, Dutch, Catalan, Spanish, Portuguese); POS-tagged corpora including the Brown Corpus; text corpora; PP attachment, named entity, WSD, TIMIT sample, Chat-80 database, WordNet, CMU Pronunciation Dictionary. Tokenizers: whitespace, newline, blankline, word, wordpunct, treebank, regexp, Punkt sentence segmenter Stemmers: Porter, Lancaster, regexp Taggers: regexp, n-gram, backoff, Brill, HMM Parsers: recursive descent, shift-reduce, chunk, chart, feature-based, probabilistic, ... Semantic interpretation: untyped lambda calculus, first-order models, parser interface Wordnet: wordnet interface, lexical relations, similarity Classifiers: decision tree, maximum entropy, naive Bayes, Weka interface Clusterers: expectation maximization, agglomerative, k-means Evaluation: accuracy, precision, recall, F-measure, windowdiff Estimation: uniform, maximum likelihood, Lidstone, Laplace, expected likelihood, heldout, cross-validation, Good-Turing, Witten-Bell Miscellaneous: feature detection, unification, chatbots, many utilities Changes: Version 0.9 is substantially revised and expanded from version 0.8. The entire toolkit can be accessed via a single import statement "import nltk", and there is a more convenient naming scheme. Calling deprecated functions generates messages that help programmers update their code. The corpus, tagger, and classifier modules have been redesigned. All functionality of the old NLTK 1.4.3 is now covered by NLTK-Lite 0.9. The book has been revised and expanded. A new data package incorporates the existing corpus collection and contains new sections for pre-specified grammars and pre-computed models. Several new corpora have been added, including treebanks for Portuguese, Spanish, Catalan and Dutch. A Macintosh distribution is provided. For full details of the changes, please see: http://nltk.svn.sourceforge.net/viewvc/*checkout*/nltk/trunk/nltk/ChangeLog _______________________________________________ Edu-sig mailing list Edu-sig@python.org http://mail.python.org/mailman/listinfo/edu-sig