What is the
Natural Language Software Registry?


The Natural Language Software Registry (NLSR) is a concise summary of the capabilities and sources of a large amount of natural language processing (NLP) software available to the NLP community. It comprises academic, commercial and proprietary software with specifications and terms on which it can be acquired clearly indicated.

The NLSR proposes a structured listing and descriptions of available NLP products, but does not overtake any distribution facility.

  While the NLSR concentrates on listing NLP software, it does not exclude the listing of Natural Language Resources (NLR), since we would also like to include resources which are strongly related to the processing tools listed in the Registry. But, in general, other institutions or projects (see below) proivide listings of such resources and/or distribute them (see ELRA/ELDA or the Linguistic Data Consortium (LDC), to mention but a few) and are far more competent on this topic as we could ever be. A cooperation here is far more indicated as duplicating entries at distinct sites.
The Fourth Edition of the NLSR

We present here the fourth edition of the NLSR, which offers among others a new functionality: a database has been developed which allows menu-guided standard queries for all the specifications of the products as they are listed in the Registry. So the visitor will have two types of access to the information stored in the NLSR: browsing through the structured list of products (click the item "sections" on the menu bar) or by asking for specific information (click the item "queries").

Another novelty concerns the classification of the products, which in the former editions of the NLSR was no longer representing with accuracy the state of the art of the Human Language Technology (HLT). To establish such a taxonomy is a far from trivial task, and the classification


proposed here will probably not satisfy all the visitors of the NLSR. Our taxonomy is largely based on the book "State of the Art in Language Technology" (ed. by G.B. Varile and A. Zampolli, Linguistica Computazionale, volume XII - XIII; an on-line version of it being available here). The classification can be enriched by the products submitted and/or by comments done by the visitors, who can browse through this taxonomy after selecting "sections" in the menu bar.

The 4th version will also control whether the software listed in the registry is kept up-to-date, thus avoiding the presence of no longer maintained products.

How to submit NLP software to the Registry
Everyone having developed NLP software can (and should) submit it to the NLSR, using the submission form designed for this purpose (click the item "submit" on the menu bar), and so extend the list of available NLP software. Nevertheless, the submitted software will be listed in the NLSR only if an URL is given, which the Registry Team can consult for judging the relevance of the product for the NLS  

Registry. In any case the Registry Team will be in contact with the developers submitting their product.

A facility for updating already listed products will be soon made available. Till then please just send an email to the Registry Team, with the information to be updated.

Other Resources
The original concept of the NLSR is due to Jessie Pinkham. The second edition, supervised by Elizabeth Hinkelman, owed much to the participants of the 1992 survey of natural language processing software, conducted for the German Ministry for Research and Technology (grant ITW 9002 0 to DFKI) by DFKI and directed by Prof. Wolfgang Wahlster. The third and fourth editions have been produced under the direction of Prof Hans Uszkoreit at the Language Technology Lab. of the DFKI. Currently involved researchers and research assistants are Thierry Declerck (contact: registry@dfki.de) and Alexander Werner Jachmann. Thanks to Jasmin Schneider for her help in the design of the Registry Page.  

As stated above, the NLSR is not concerned with the distribution of NLP software. Interesting listings of natural language resources include:

An Initiative of the   ACL hosted at      Contact: registry@dfki.de