DELPH-IN Overview
The DELPH-IN Consortium is a collaboration among computational linguists from research sites world-wide working on ‘deep’ linguistic processing of human language. The goal is the combination of linguistic and statistical processing methods for getting at the meaning of texts and utterances. The partners have adopted Head-Driven Phrase Structure Grammar (HPSG) and Minimal Recursion Semantics (MRS), two advanced models of formal linguistic analysis. They have also committed themselves to a shared format for grammatical representation and to a rigid scheme of evaluation, as well as to the general use of open-source licensing and transparency.
DELPH-IN is a long-standing collaboration over many years involving researchers from the following institutions, among others:
Bulgarian Academy of Science (Bulgaria), Linguistic Modeling Department
University of Cambridge (UK), Department of Computer Science and Technology
DFKI Saarbrücken GmbH (Germany), Language Technology Lab (co-founder)
Kyung Hee University (Korea), http://web.khu.ac.kr/~english School of English
Melbourne University (Australia), Language Technology Group
NTT Communication Science Laboratories (Japan), http://www.kecl.ntt.co.jp/icl/lirg/index.html Linguistic Intelligence Research Group
Nanyang Technological University (Singapore), Division of Linguistics and Multilingual Studies
Norwegian University of Science and Technology (Norway), Department of Language and Communication Studies
Saarland University (Germany), Department for Computational Linguistics
Stanford University (US), LinGO Laboratory at CSLI (co-founder)
University of Lisbon (Portugal), Natural Language and Speech Group
Universtitat de Barcelona (Spain), Grup de Recerca Interuniversitari en Aplicacions Lingüístiques (GRIAL)
CNRS & Université Paris Diderot (France), Laboratoire de Linguistique Formelle (UMR 7110)
Universtitat Pompeu Fabra (Spain), Institut Universitari de Lingüística Aplicada (IULA)
University of Oslo (Norway), Language Technology Group
University of Washington (US), Computational Linguistics Laboratory
The DELPH-IN collaboration is open to additional partners who share our ambitious goals and commitments and who can dedicate the necessary resources to the common task.
Components and Resources
- Tools and Architectures
LKB: Lexical Knowledge Builder --- Grammar Engineering Environment
[incr tsdb()]: Competence and Performance Profiler
ACE: Answer Constraint Engine, parsing and generation with DELPH-IN grammars
PyDelphin: Python library for working with DELPH-IN representations
LOGON: Information about the LOGON machine translation infrastructure.
Pet: Platform for Experimentation with efficient HPSG processing Techniques
Other tools: Supporting software, addons, peripheral contributions
- Grammars, Frameworks and Treebanks
English Resource Grammar: DELPH-IN's most comprehensive grammar.
Tutorial on using the ERG, presented at NAACL 2016
Documentation of the ERG's semantic representations
Catalogue of Grammars, including broad-coverage grammars for German, Japanese, Norwegian, and Spanish, along with significant grammars for several other languages.
Matrix: Starter-Kit for rapid prototyping of LKB-compatible precision grammars
CLIMB: Tools to support grammar development of LKB-compatible precision grammars
Redwoods: HPSG Treebank Comprised of Analyses from the ERG
MRS: Minimal Recursion Semantics --- Theory and Implementation (including extensions and variants such Robust MRS (RMS), Elementary Dependency Structures (EDS) and Dependency MRS (DMRS))
ErgSemantics: Emerging documentation of MRS as used in the ERG
RmrsDiscussions: Links to discussions related to MRS at various DELPH-IN events
Shared Corpora, Treebanks
MRS Test Suite: Core Test Suite (~100 sentences)
Cathedral and the Bazaar: Parallel Corpus based on an Open Source Essay (~800 sentences)
Grammar discussions: Discussions for grammar developers (analyses, terminology, harmonization, …)
DELPH-IN RFCs (Requests For Comments; formal specifications)
- Applications
About this Site
This is the on-line wiki forum for DELPH-IN software and resources. It serves to enable both developers and users to incrementally create further documentation and up-to-date information on aspects of installation or usage of DELPH-IN technology. Mostly to enforce some discipline among ourselves, these pages require that users are registered to the wiki server in order to obtain write access. Please create a WikiName for yourself, which may require obtaining a ‘textcha’ to protect against wiki spam; once registered at the wiki, to request write access please contact info at delph-in.net. The developers do hope that active DELPH-IN users will contribute to these pages over time.
Archives
Some information from the earlier years of DELPH-IN collaborations is preserved on the following pages, for historical interest:
Links to earlier DELPH-IN-related projects
Earlier overviews of the DELPH-IN consortium
Further Information
There is a collection of DELPH-IN mailings lists to which users can subscribe on-line and browse archives of previous postings through the DELPH-IN mailing list manager. If you click on a list, there is a link to the archive near the top of the page.
There is also an active stack-exchange style forum, using the Discourse platform.