LINGUIST List 13.472

Wed Feb 20 2002

Calls: Hybrid Logics, Lang Retrieval & Filtering

Editor for this issue: Renee Galvis <reneelinguistlist.org>

Directory

1. Methods for Modalities, Second Calll for Papers HyLoLICS
2. clou, Workshop call for papers: deadline extension

 HyLoLICS 

 4th WORKSHOP ON HYBRID LOGICS

 LICS 2002 Affiliated Workshop
 >>> JULY 25, 2002 <<<
 Copenhagen, Denmark

 SECOND CALL FOR PAPERS


 THEME:

 Hybrid logic is a branch of modal logic in which it is possible to
 directly refer to worlds/times/states or whatever the elements of the
 (Kripke) model are meant to represent. Although they date back to the
 late 1960s, and have been sporadically investigated ever since, it is
 only in the 1990s that work on them really got into its stride.

 It is easy to justify interest in hybrid logic on applied grounds,
 with the usefulness of the additional expressive power. For example,
 when reasoning about time one often wants to build up a series of
 assertions about what happens at a particular instant, and standard
 modal formalisms do not allow this. What is less obvious is that the
 route hybrid logic takes to overcome this problem (the basic
 mechanism being to add nominals --- atomic symbols true at a unique
 point --- together with extra modalities to exploit them) often
 actually improves the behavior of the underlying modal formalism. For
 example, it becomes far simpler to formulate modal tableau and
 resolution in hybrid logic, and completeness and interpolation
 results can be proved of a generality that is simply not available in
 modal logic. That is, hybridization --- adding nominals and related
 apparatus --- seems a fairly reliable way of curing many known
 weaknesses in modal logic. For more general background on hybrid
 logic, and many of the key papers, see the Hybrid Logics homepage:

 http://www.hylo.net

 HyLoLICS is likely to be relevant to a wide range of people,
 including those interested in description logic, feature logic,
 applied modal logics, temporal logic, and labelled deduction.
 Moreover, if you have an interest in the work of the late Arthur
 Prior, note that this workshop is devoted to exploring ideas he first
 introduced 30 years ago --- it will be an ideal opportunity to see
 how his ideas have been developed in the intervening period.

 In this workshop we hope to bring together researchers from all the
 different fields just mentioned (and hopefully some others) in an
 attempt to explore what they all have (and do not have) in common. If
 you're unsure whether your work is of relevance to the workshop,
 please check out the Hybrid Logics homepage. And do not hesitate to
 contact the workshop organisers for more information. We'd be
 delighted to tell you more. Contact details are give below.

 INVITED TALKS

 We are very pleased to announce that Professors Moshe Vardi and
 Melvin Fitting have accepted to be invited speakers at HyLoLICS.
 Program and titles of the talks will be released in following announcement,
 but we are already looking forward to hear about their perspective on Hybrid 
 Logics.

 SUBMISSIONS:

 We invite the contribution of research papers to the workshop. Please
 send electronically an extended abstract of up to 10 A4 size pages,
 in PostScript format to: carlosscience.uva.nl BEFORE the 26st of
 APRIL, 2002. Please note that all workshop contributors are required
 by the LICS organizers to register for FLoC 2002. 

 IMPORTANT DATES:

 Deadline for Submissions: April 26th, 2002
 Notification of Acceptance: May 24th, 2002
 Deadline for Final Versions: June 25th, 2002

 CONTACT DETAILS:

 Please visit http://www.hylo.net for further information.

 Send all correspondence regarding the workshop to the organizers:

 Carlos Areces
 e-mail: carlosscience.uva.nl
 http://www.illc.uva.nl/~carlos

 Patrick Blackburn
 e-mail: patrickaplog.org
 http://www.loria.fr/~blackbur

 Maarten Marx 
 e-mail: marxscience.uva.nl
 http://www.illc.uva.nl/~marx

 Ulrike Sattler
 e-mail: sattlercs.rwth-aachen.de
 http://www-lti.informatik.rwth-aachen.de/ti/uli-en.html

 Last call for papers
 Deadline extension : March 6th, 2002


 Using Semantics for Information Retrieval and Filtering

 State of the Art and Future Research



 Las Palmas, Canary Islands - Spain
 2nd of June 2002


 Held in conjunction with the

Third International Conference on Language Resources and Evaluation

 (LREC 2002)






The goal of this full day workshop is to bring together researchers in
the domain of information retrieval, and in particular, researchers
concerned by the utility of enhancing queries with semantic
information gleaned from languages resources and processes.



Workshop scope and aims
- ---------------------

Several experiments have been carried out in the last 15 years
investigating the use of various resources and techniques (e.g.,
thesauri, synonyms, word sense disambiguation, etc.) to help refine or
enhance queries. However, the conclusions drawn on the basis of these
experiments vary widely. Results of some studies have led to the
conclusion that semantic information serves no purpose and even
degrades results, while others have concluded that the use of semantic
information drawn from external resources significantly increases the
performance of retrieval software. At this point, several question
arise:

 - Why do these conclusions vary so widely?
 - Is the divergence a result of differences in methodology?
 - Is the divergence a result of a difference in resources? What
 are the most suitable resources? Do results using manually
 constructed resources differ in significant ways from results
 using automatically extracted information?
 - What is the contribution of specialized resources?
 - Are present frameworks for evaluation (e.g., TREC) appropriate
 for evaluation of results?.

These questions are fundamental not only to research in document
retrieval, but also for information searching, question answering,
filtering, etc. Their importance is even more acute for multilingual
applications, where,for instance, the question of whether to
disambiguate before translating is fundamental.

The goal of this workshop is to bring together researchers in the
domain of document retrieval, and in particular, researchers on both
sides of the question of the utility of enhancing queries with
semantic information gleaned from languages resources and processes.

The workshop will provide a forum for presentation of the different
points of view, followed by a roundtable in which the participants
will assess the state of the art, consider the results of past and
on-going work and the possible reasons for the considerable
differences in their conclusions. Ultimately, they will attempt to
identify future directions for research.

In view of the relevance of Word Sense Disambiguation (WSD) to
information retrieval, a part of the workshop will be dedicated to a
panel on Senseval and WSD evaluation
(http://www.itri.bton.ac.uk/events/senseval/). The purpose of the
panel is to open the discussion on the objectives and principles of
Senseval-3, the next evaluation exercise for WSD systems.

The panel will summarize the methodology and results of Senseval-2 and
consider the current state of WSD. Panelists will speak about the
following topics: Is the Senseval-2 method of evaluation adequate? Are
we building the right kind of lexical resources for real sense
disambiguation systems? Should we (and is it possible to) start an
application-specific evaluation track?



Important dates
- -------------

 - Paper submission deadline: March, 6th 2002
 - Notification of acceptance/rejection: March 27th, 2002
 - Camera ready papers due: April 8th, 2002
 - Workshop: June 2nd, 2002



Topics
- ----

Papers are requested that deal with one or more of the following
topics (this is not an exhaustive list), and which make use of
semantics applied to automatic information management:

 - Query enrichment
 - Semantic disambiguation
 - Thematic clustering
 - Performance comparison according to the resources or techniques
 used
 - Automatic construction of resources from corpora
 - Comparisons of manually and automatically created resources
 - Methodology and resources for evaluation
 - Interlingual document retrieval
 - Structure and quality control of resources
 - Comparison of general resources and specialized resources
 - Use of document structure (XML, RDF, etc.)



Submission Details
- ----------------

Papers should not exceed 7 pages.

Submission must be sent by ELECTRONIC mail to
loupysinequa.com. Please write "LREC2002 workshop paper submission"
in the subject line.

Accepted formats: Postscript (strongly preferred), PDF or RTF. No
information about author(s) should appear in the submission paper.

Please send the following information in a separate file: the title to
be printed in the programme of the Workshop; names and affiliations of
the authors; the full address of the first author (or a contact
person), including phone, fax, email, URL.

Formatting guidelines are provided at
http://www.langnat.com/usirf. The format described here may be
modified for the final version.



Registration
- ----------

The registration fee for the workshop is

 90 Euro if you are attending LREC
 140 Euro if you are NOT attending LREC

The fee includes two coffee breaks and the workshop proceedings.

Participation in the workshop is limited by the venue. Requests for
participation will be processed on a first come first served basis.
Registration is handled by the LREC Secretariat.



Venue
- ---

The workshop will take place at the Palacio de Congreso de Canarias,
where the main LREC Conference will be held. For more information,
please refer to the LREC website :
http://www.lrec-conf.org/lrec2002/index.html



Conference Information
- --------------------

General information on LREC: http://www.lrec-conf.org/lrec2002/index.html

Information on travel, accommodation and general information on Las
Palmas and the Canary Islands can be obtained from:

 Octavio Grondonna Morales
 Viajes El Corte Ingles
 Avda. Juan XXIII, 9
 35004 Las Palmas de Gran Canaria
 Tel: +34 928 292402
 Fax: +34 928 291876
 E-mail: commercial_lpaviajeseci.es



Program Committee
- ---------------

 - Marc El-Beze, Universite d'Avignon et des Pays de Vaucluse, France
 - Christian Fluhr, CEA, France
 - Julio Gonzalo, Universidad Nacional de Educacion a Distancia, Spain
 - Graeme Hirst, University of Toronto, Canada
 - Nancy Ide, Vassar College, USA
 - Adam Kilgarriff, University of Brighton, United Kingdom
 - Claude de Loupy, Sinequa, France
 - Christian Marest, Mediapps, France
 - Patrick Paroubek, LIMSI, France
 - Piek Vossen, Irion Technologies, The Netherlands
 - Phil Edmonds, Sharp Laboratories of Europe LTD, United Kingdom



Contact Person
- ------------

 Claude de Loupy
 Sinequa
 51-59 rue Ledru-Rollin
 94200 Ivry-sur-Seine, France
 Tel: +33 1 49 87 06 00 / Fax: +33 1 49 87 06 01
 email: loupysinequa.com