NLP Tools（自然语言处理工具）

Maxent Mature Java package for training and using maximum entropy models. OpenNLP CCG Library A collection of natural language processing components and tools which provide support for parsing and realization with Combinatory Categorial Grammar (CCG). This project is an off-shoot of Grok. OpenNLP Tools A collection of natural language processing tools which use theMaxent package to resolve ambiguity. The package include a sentence detector, tokenizer, pos-tagger, shallow and full syntactic parser, and named-entity detector. WordFreak Java-based linguistic annotation tool.

AGTK A suite of software components for building tools for annotating linguistic signals, time-series data which documents any kind of linguistic behavior (e.g. audio, video). The internal data structures are based on annotation graphs. Arithmetic Coding A java package Arithmetic Coding and PPM (adaptive variable-length > n-gram language models for compression) ComLinToo A set of Perl tools for computational linguistics (esp. corpus handling and (permutation) statistics). Attribute-Logic Engine (ALE) A freeware logic programming and grammar parsing and generation system EDG A Lisp system for developing and displaying HPSG Ellogon An LGPL component-based natural language engineering platform written in C, C++, Java, Tcl, Perl, and Python Emdros A text database engine for analyzed or annotated text. FreeLing An open source suite of language analyzers. Heart of Gold XML-based middleware for integrating deep (HPSG parsing) and shallow NLP components. Leo A project to provide an architecture for defining XML specifications of grammars for different natural language parsing systems and tools for converting grammars automatically between those systems LKB The LKB system is a grammar and lexicon development environment for use with constraint-based linguistic formalisms. Mallet A Machine Learning for Language Toolkit written in Java MinorThird A collection of Java classes for storing text, annotating text, and learning to extract entities and categorize text. Ngram Statistics Package Allows for the counting and measuring of Ngrams in text. NLTK A Python package intended to simplify the task of programming natural language systems. nlpFarm A collection of NLP libraries, tools and demo applications. Current focus is mainly on parsing and dialogue systems. SenseRelate Implements a word sense disambiguation algorithm using WordNet::Similarity Tiger API Library which allows java programmers to easily access the structure of any corpus given as a tiger-xml file. Web as Corpus Toolkit A collection of programs that can be used to create a (large) text corpus from a list of URLs. Weka A collection of machine learning algorithms for data mining tasks. Weta The Waikato Environment for Text Analysis WordNet::Similarity Provides measures of semantic relatedness using WordNet.