- ARIES Natural Language Tools - Proprietary tools for the lexical work on the Spanish language. Free demo, documentation.
- Natural Language Software Registry - A directory of academic, commercial and proprietary software with specifications and licensing terms. From DFKI Saarbrücken.
- Phrasys Natural Language Processing - A variety of services for natural language technology developers, including consultancy, commercial software and freeware. Features a Java component useful for string analysis.
- 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.
- TextAI: Text Analysis International - Provides NLP applications based on its proprietary VisualText technology. Product and service information, online software tour, some 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.
- Thistle - A Java GUI editor for editing tree diagrams (such as those employed in constraint-based grammars), existing in both applet and standalone forms. Sample trees and editors.
- Public Domain Language Engineering Generic Tools - Lecture by Tomaz Erjavec, including text, slides and links. From the 1996 TELRI conference.
- Annotate - Tool for semi-automatic graphic annotation of corpora. License, documentation, screenshot. Requires GCC and MySQL, in addition to registration.
- Morphological and Orthographic Tools for English - UNIX tools for the analysis and synthesis of text, from Sussex's John Carroll. GZIP downloads, descriptions, related publications.
- 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.
- 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
- 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.
- OpenNLP - Collaborative organization for open source projects related to natural language processing. Lists ongoing projects and documents proposed standard Java and XML APIs.
- Smart Tutorial - A tutorial on the SMART IR system from Cornell. Put together by Hans Paijmans with a technical report on the implementation of an earlier version of SMART.
- Connexor Parsers - Language parsers and taggers for English, German, French, Spanish, Italian, Dutch, Finnish and Swedish. On-line parser demos and limited documentation available.
- 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.
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