WP11 Multilingual semantic wiki - M9

Summary of progress

Three lines of work were followed: developing a multilingual ACE grammar (ACE-in-GF), extending the AceWiki system based on the GF technology (currently referred to as AceWiki-GF) and extending the Attempto reasoner RACE.

In collaboration with UGOT (John J. Camilleri) a GF-based multilingual grammar for ACE was developed. This grammar has the following properties:

• it covers the AceWiki subset of ACE, but is easily extendable towards full ACE
• it is available in 10 languages (in addition to ACE), but is easily extendable to other languages given that they are available in the GF resource grammar library
• its performance is similar to existing ACE parsers
• it is directly usable in AceWiki-GF

This resource is fully presented in Deliverable D11.1.

AceWiki-GF was further developed by adding preliminary support for multiple grammars, multiple articles, ambiguity management, and grammar editing. A large number of AceWiki-GF demo wikis have been made publicly readable/editable on the Attempto website. Most of these wikis are based on grammars developed in MOLTO and in previous GF-related projects. Some of the simpler grammars can also be edited. The current work on AceWiki-GF and its underlying ideas were published at CNL 2012 and presented as both a talk and a demo.

The Attempto reasoner RACE is currently extended to handle arithmetic, linear equations and text problems. This work – not being part of the actual MOLTO tasks – aims at providing AceWiki-GF with an alternative reasoning capability that covers the complete first-order subset of ACE. The current, still incomplete, version of RACE was demonstrated at CNL 2012.

Organization of meetings and conferences:

• 7-9 March the 4th MOLTO project meeting was organized by Norbert E. Fuchs at the University of Zurich
• 29-31 August the 3rd Workshop of Controlled Natural Language (CNL 2012) was organized by Tobias Kuhn and Norbert E. Fuchs at the University of Zurich

Highlights

• Multilingual GF-based ACE grammar (ACE-in-GF)
• A demonstration version of AceWiki-GF is publicly available
• RACE extensions
• CNL 2012

Links to online resources

• CNL 2012 workshop: http://attempto.ifi.uzh.ch/site/cnl2012/
• ACE-in-GF project website: https://github.com/Attempto/ACE-in-GF
• AceWiki-GF demo wikis: http://attempto.ifi.uzh.ch/acewiki-gf/
• AceWiki-GF source code: https://github.com/AceWiki/AceWiki/tree/gfservice
• RACE web-interface: http://attempto.ifi.uzh.ch/site/tools/

Deviations from Annex I

A small deviation is expected for the deliverables of this workpackage to allow time for Tobias Kuhn's contributions, who is a leading developer of AceWiki currently on a researcher's visit abroad. The revised schedule is as follows:

• D11.2 planned for M33 (end November 2012) is postponed to M34 (end December 2012)
• D11.3 planned for M37 (end March 2013) is postponed to M38 (end April 2013).