Bridging the LAPPS Grid and CLARIN

Bridging the LAPPS Grid and CLARIN Erhard Hinrichs*, Nancy Ide**, James Pustejovsky†, Jan Hajiˇc‡, Marie Hinrichs*, Mohammad Fazleh Elahi*, Keith Suderman**, Marc Verhagen†, Kyeongmin Rim†, Pavel Straˇn´ak‡, Jozef Miˇsutka‡ *University of T¨ubingen, **Vassar College, †Brandeis University, ‡Charles University {erhard.hinrichs, marie.hinrichs, mohammad-fazleh.elahi}@uni-tuebingen.de, {ide, suderman}@cs.vassar.edu, {jamesp, marc}@cs.brandeis.edu, krim@brandeis.edu,{hajic, stranak, misutka}@ufal.mff.cuni.cz Abstract The LAPPS-CLARIN project is creating a “trust network” between the Language Applications (LAPPS) Grid and the WebLicht work- flow engine hosted by the CLARIN-D Center in T¨ubingen. The project also includes integration of NLP services available from the LINDAT/CLARIN Center in Prague. The goal is to allow users on one side of the bridge to gain appropriately authenticated access to the other and enable seamless communication among tools and resources in both frameworks. The resulting “meta-framework” provides users across the globe with access to an unprecedented array of language processing facilities that cover multiple languages, tasks, and applications, all of which are fully interoperable. Keywords: Language Applications Grid, WebLicht, Text Corpus Format (TCF), LAPPS Grid Interchange Format (LIF), CoNLL-U, Web Service Exchange Vocabulary, syntactic interoperability, semantic interoperability, user identification and authentication 1. Introduction The Andrew K. Mellon Foundation has funded a project to create a “trust network” between the Language Applica- tions (LAPPS) Grid (?), a major framework for composing pipelines of natural language processing (NLP) tools, and the WebLicht workflow engine (?) hosted by the CLARIN- D Center in T¨ubingen. The project also includes integra- tion of NLP services available from the LINDAT/CLARIN Center in Prague1. The goal is to allow users on one side of the bridge to gain appropriately authenticated access to the other and enable seamless communication among tools and resources in both frameworks. The resulting “meta- framework” provides users across the globe with access to an unprecedented array of language processing facilities that cover multiple languages, tasks, and applications, all of which are fully interoperable. The LAPPS Grid/CLARIN Mellon project involves two major tasks: (1) establishing a joint single sign-on user au- thentication and authorization mechanism; and (2) enabling seamless interoperability at both the syntactic and seman- tic levels among tools available from both the LAPPS Grid and WebLicht, so that users can mix and match these tools regardless of provenance and without concern for differing I/O requirements. In this paper we describe the work re- quired to accomplish these tasks. 2. Overview In the LAPPS Grid, language resources and NLP tools are made available as web services through the Galaxy work- flow engine and interface (?), as well as programmatic ac- cess through the LAPPS Grid application programming in- terface (API)2. LAPPS Grid tools consume and produce data in the LAPPS Interchange Format (LIF) (?), a JSON- LD-based format designed to serve as an internal inter- change format for linguistically annotated data. Semantic interoperability among services is accomplished via URI 1 https://lindat.mff.cuni.cz/en 2 http://wiki.lappsgrid.org/Developing.html references to the LAPPS Grid Web Service Exchange Vo- cabulary (WSEV) (?). NLP tools are accessed as web ser- vices that deliver metadata about the content at a standard- ized URI …

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