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SECOND CALL FOR PAPERS
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ACL Workshop ExProM 2012 Extra-propositional aspects of meaning
in computational linguistics

Organised by the University of Antwerp and Saarland University
Colocated with ACL 2012

July 2012, Jeju Island, Korea

http://www.clips.ua.ac.be/exprom2012

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Papers are invited for the one-day workshop to be held in Jeju
Island, Korea, in July 2012 (12, 13, or 14 - to be determined).

Until recently, research in Natural Language Processing (NLP) has
focused predominantly on propositional aspects of meaning. For
example, semantic role labeling, question answering or text
mining tasks aim at extracting information of the type "who does
what, when and where". However, understanding language involves
also processing Extra-Propositional Aspects of Meaning (EPAM),
such as factuality, uncertainty, or subjectivity, since the same
propositional meaning can be presented in a diversity of
statements. While some work on phenomena like subjectivity has
been carried out in the context of sentiment processing, other
phenomena like the detection of sarcasm have received less
attention.

By proposing this workshop we aim at bringing together scientists
working on EPAM from any area related to computational language
learning and processing. By EPAM we understand aspects of meaning
that cannot be captured with a propositional representation such
as the output of semantic role labelers.

For instance, the meaning of the sentence in Example (1) can be
represented with the proposition ADD(earthquake,further threats
to the global economy), whereas representing the meaning of the
sentences in Example (2) requires additional mechanisms, despite
the fact that all sentences share a propositional meaning.

(1)    The earthquake adds further threats to the global economy.

(2)    Does the earthquake add further threats to the global
       economy? The earthquake adds further threats to the global
       economy, doesn't it? The earthquake does not add further
       threats to the global economy. The earthquake will never
       add further threats to the global economy. The earthquake
       will probably add further threats to the global economy.
       Who could (possibly) think the earthquake adds further
       threats to the global economy? The earthquake might have
       added further threats to the global economy. The last
       analysis shows that the earthquake will add further
       threats to the global economy. It is expected that the
       earthquake will add further threats to the global economy.
       It has been denied that the earthquake adds further
       threats to the global economy.

Some of the sentences above could also be combined in a paragraph
such as (3), which shows that the same event can be presented
from different perspectives, at different points in time and with
different extra-propositional meanings.

(3) The main question 6 months ago was whether the earthquake
    would add further threats to the global economy. Some days
    after the earthquake the authorities were convinced that it
    would be possible to minimize the impact of the earthquake.
    Most economists didn't share this view and predicted a high
    economic impact of the earthquake. However, a recent study
    about the earthquake's effect has shown that, although the
    earthquake might have added further threats to the global
    economy, its negative impact can be controlled by applying
    the right measures.

While the area of EPAM comprises a broad range of phenomena, this
workshop will focus mainly on the aspects related to modality
understood in a general sense (modalities, hedging, certainty,
factuality), negation, attitude, and irony/sarcasm. Since many of
these phenomena cannot be adequately modeled without taking
(discourse) context into account, the workshop also touches on
discourse phenomena in so far as they relate to
extra-propositional aspects of meaning.

The workshop is a follow-up to Negation and Speculation in
Natural Language Processing (NeSp-NLP 2010) held in Uppsala,
Sweden, in July 2010.

SCOPE AND TOPICS

In particular, the workshop will address the following topics,
although it will be open to other related topics:

- Negation
- Modality
- Hedging
- Factuality
- Certainty
- Subjectivity, attitude
- Evidentiality
- Irony, sarcasm
- Modeling and annotating extra-propositional aspects of meaning
- Scope resolution
- Detection of non-factual information
- Changes of the factual status of events within a text/message
  and within collections of texts/messages
- Discourse phenomena related to extra-propositional aspects of
  meaning
- The impact of extra-propositional aspects of meaning in NLP
  tasks: sentiment analysis, text mining, textual entailment,
  information extraction, machine translation, paraphrasing
- Implicit expression of extra-propositional meaning
- Multimodal expression of extra-propositional meaning
- Author profiling based on extra-propositional aspects of
  meaning
- Extra-propositional aspects of meaning across domains and
  genres

SUBMISSIONS

Authors are invited to submit full papers on original,
unpublished work in the topic area of this workshop. All
submissions must conform to the official ACL 2012 style
guidelines and should not exceed 8 pages. Formatting instructions
and the ACL 2012 Style Files can be found at
http://www.acl2012.org/call/sub01.asp .

The reviewing of the papers will be blind and the papers should
not include the authors' names and affiliations. Each submission
will be reviewed by at least three members of the program
committee. Accepted papers will be published in the workshop
proceedings.

Papers should be submitted no later than March 18, 2012, via the
following submission site:

https://www.softconf.com/acl2012/exprom-2012

IMPORTANT DATES

March 18, 2012 - Submission deadline April 15, 2012 -
Notification of acceptance April 30, 2012 - Camera-ready papers
due July 12, 13, or 14, 2012 - Workshop

ORGANISATION

Roser Morante, CLiPS-LTG, University of Antwerp Caroline
Sporleder, MMCI / Computational Linguistics and Phonetics,
Saarland University

PROGRAM COMMITTEE

Johan Bos - University of Groningen Gosse Bouma - University of
Groningen Walter Daelemans - University of Antwerp Roxana Girju -
University of Illinois at Urbana-Champaign Iris Hendrickx -
University of Lisbon Halil Kilicoglu - Concordia University Maria
Liakata - University of Wales Katja Markert - University of Leeds
Erwin Marsi - Norwegian University of Science and Technology
David Martinez - NICTA and University of Melbourne Malvina Nissim
- University of Bologna Sebastian Pado - University of Heidelberg
Sampo Pyysalo - NaCTeM and University of Manchester Owen Rambow -
Columbia University Paolo Rosso - Universidad Polit?cnica de
Valencia Josef Ruppenhofer - Saarland University Roser Sauri -
Barcelona Media Innovation Center Carlo Strapparava - Fondazione
Bruno Kessler György Szarvas - TU Darmstadt Erik Velldal -
University of Oslo Annita de Waard - Elsevier Labs Bonnie Webber
- University of Edinburgh Michael Wiegand - Saarland University

--
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Caroline Sporleder Cluster of Excellence MMCI / Computational
Linguistics Saarland University csporled_(at)_coli.uni-sb.de
http://www.coli.uni-saarland.de/~csporled
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