[Elsnet-list] 2nd Call for Participation : GEMS, EACL-2009 worshop on semantic spaces

Marco Pennacchiotti pennac at yahoo-inc.com
Tue Mar 3 00:34:13 CET 2009


EACL 2009 Workshop
GEMS : GEometrical Models of Natural Language Semantics

March 31, 2009

Athens, Greece
Megaron Athens International Conference Center Room MC.3

URL : http://art.uniroma2.it/gems/

Distributional models and semantic spaces represent a core topic in 
contemporary computational linguistics for their impact on advanced tasks and 
on other knowledge fields (such as social science and the humanities).

The goal of the GEMS workshop is to further stimulate research on semantic 
spaces  and distributional methods for NLP, by adopting an interdisciplinary 
approach to allow a proper exchange of ideas, results and resources among 
often independent  communities. In particular, the workshop will provide a 
common ground for a fruitful discussion among experts of distributional 
approaches, collocational corpus analysis and machine learning; researchers 
interested in the use of statistical models in NLP applications (e.g. question 
answering, summarization and textual entailment) and in other fields of 
science; and experts in formal computational semantics.

The workshop aims at gathering contemporary contributions to large scale 
problems in meaning representation, acquisition and use, based on 
distributional and vector space models. The workshop aims also to shed new 
light on the use of such  techniques  on complex linguistic tasks, such as 
linguistic knowledge acquisition, semantic role labeling, textual entailment 
recognition, question answering, document understanding/summarization and 
ontology learning.

***** REGISTRATION *****
Register at:

***** PROGRAM *****

8:50 - 9:00 Welcome 

9:00 - 9:50 Invited Talk: 
   Patrick Pantel
   "Lexical Semantics in the Prime Time: Applications to Web Search" 

 -- Session 1 --

    9:50 - 10:15 Marco Baroni and Alessandro Lenci
      One distributional memory, many semantic spaces 

    10:15 - 10:40 Yves Peirsman and Dirk Speelman
      Word Space Models of Lexical Variation 

10:40 - 11:00 Coffe break 

 -- Session 2 --

    11:00 - 11:25 Klaus Rothenhausler and Hinrich Schuetze
      Unsupervised Classification with Dependency Based Word Spaces 

    11:25 - 11:50 Lidan Zhang and Kwok-Ping Chan 
      A Study of Convolution Tree Kernel with Local Alignment  

    11:50 - 12:15 Amaç Herdagdelen and Marco Baroni 
      BagPack: A general framework to represent semantic relations  

    12:15 - 12:45 SHORT PRESENTATIONS : 
      Fridolin Wild, Bernhard Hoisl and Gaston Burek 
        Positioning for Conceptual Development using Latent Semantic Analysis
      Ruslan Mitkov, Le An Ha, Andrea Varga and Luz Rello 
        Semantic similarity: which is the best method to compute it? 
        Extrinsic evaluation based on the choice of distractors in 
        multiple-choice tests

12:45 - 13:45 Lunch break 

 -- Session 3 --

    13:45 - 14:10 Katrin Erk and Sebastian Pado 
      Paraphrase assessment in structured vector space: Exploring 
	  parameters and datasets
	14:10 - 14:35 Francesca Fallucchi and Fabio Massimo Zanzotto 
      SVD Feature Selection for Probabilistic Taxonomy Learning  
	14:35 - 15:00 Andreas Vlachos, Anna Korhonen and Zoubin Ghahramani 
      Unsupervised and Constrained Dirichlet Process Mixture Models for Verb 
	15:00 - 15:25 Tim Van de Cruys 
      A Non-negative Tensor Factorization Model for Selectional Preference 
	15:25 - 16:00 SHORT PRESENTATIONS : 
      Beate Dorow, Florian Laws, Lukas Michelbacher, C. Scheible and J. Utt 
        A Graph-Theoretic Algorithm for Automatic Extension of Translation 
      Mona Diab and Madhav Krishna 
        Handling Sparsity for Verb Noun Multi-Word Expression Token 

16:00 - 16:30 Coffe break 

 --Session 4 --

    16:30 - 16:55 Eyal Sagi, Stefan Kaufmann and Brady Clark 
      Semantic Density Analysis: Comparing word meaning across time and 
	  phonetic space  
    16:55 - 17:20 Daoud Clarke 
      Context-theoretic Semantics for Natural Language: an Overview  

17:20 - 17:45 Panel 

17:45 - 18:00 Best Paper


 Roberto Basili, University of Roma Tor Vergata, Italy  
 Marco Pennacchiotti, Saarland University, Germany

Marco Baroni, University of Trento, Italy 
Johan Bos, University of Roma La Sapienza, Italy 
Paul Buitelaar, DFKI, Germany 
John A. Bullinaria, University of Birmingham, UK 
Rodolfo Dal Monte, University of Venice, Italy 
Katrin Erk, University of Texas, US 
Stefan Evert, University of Osnabruck, Germany 
Alfio Massimiliano Gliozzo, Reinvent Technology Inc., Canada 
Jerry Hobbs, University of Southern California, US 
Alessandro Lenci, University of Pisa, Italy 
Jussi Karlgren, Swedish Institute of Computer Science, Sweden 
Will Lowe, University of Nottingham, UK 
Diana McCarthy, University of Sussex, UK 
Alessandro Moschitti, University of Trento, Italy 
Saif Mohammad, University of Maryland, US 
Sebastian Pado, Stanford University, US 
Patrick Pantel, Yahoo! Research, US 
Massimo Poesio, University of Trento, Italy 
Magnus Sahlgren, Swedish institute of Computer Science, Sweden 
Fabrizio Sebastiani, CNR, Italy 
Suzanne Stevenson, University of Toronto, Canada 
Sabine Schulte imWalde, University of Stuttgart, Germany 
Peter D. Turney, National Research Council Canada, Canada 
Dominic Widdows, Google Research, US 
Yorick Wilks, University of Sheffield, UK 
Fabio Massimo Zanzotto, University of Roma Tor Vergata, Italy


***** CONTACTS *****

Roberto Basili
  Department of Computer Science
  University of Roma Tor Vergata
  basili at info.uniroma2.it

Marco Pennacchiotti
  Yahoo! Inc.
  Santa Clara
  pennac at yahoo-inc.com

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