AFGL Project: Affix Grammars over a Finite Lattice - A system of public domain software for natural language processing. Includes a formalism for compact grammar description, parser generation system, transduction tool.
Annotate - Tool for semi-automatic graphic annotation of corpora. License, documentation, screenshot. Requires GCC and MySQL, in addition to registration.
ARIES Natural Language Tools - Proprietary tools for the lexical work on the Spanish language. Free demo, documentation.
Cogilex - Company offering expert services and customized tools for natural language processing. Site features demo download of the "QuickTag and QuickParse" utility for Windows, also online tools.
Connexor Parsers - Language parsers and taggers for English, German, French, Spanish, Italian, Dutch, Finnish and Swedish. On-line parser demos and limited documentation available.
GATE: General Architecture for Text Engineering - A computer architecture for a broad range of Natural Language Processing tasks, available under the GNU Public License. Abundant documentation, Java class library, web-based demos.
GroupLens - An experimental collaborative filtering service based on "Better Bit Bureaus" which is itself a collaborative venture between Paul Resnik of the Center for Coordination Science at MIT and Brad Miller and others at the University of Minnesota
KPML Access Page - Graphically based language engineering program, developed for working with large-scale grammars under the Systemic Formal Linguistics framework. Downloadable program images, documentation, resources and source code.
Natural Language Software Registry - A directory of academic, commercial and proprietary software with specifications and licensing terms. From DFKI Saarbrücken.
OpenNLP - Collaborative organization for open source projects related to natural language processing. Lists ongoing projects and documents proposed standard Java and XML APIs.
Senga: Information Retrieval Software - Senga is a development group focused on information retrieval software. The primary purpose of the components distributed on Senga is to build a large scale internet search engine.
TextAI: Text Analysis International - Provides NLP applications based on its proprietary VisualText technology. Product and service information, online software tour, some documentation.
