Four evening lectures by reknowned figures in the field will be organized
during ESSLLI 2004.
First Week: 9 - 13th of August, 2004
Date: Tuesday, August 10th
Speaker: Vladimir Lifschitz
Title: What Is Answer Set Programming?
Abstract: Answer Set Programming (ASP) is a new form of declarative programming,
oriented towards difficult combinatorial search problems. It has been
applied, for instance, to plan generation and product configuration
problems in Artificial Intelligence and to graph-theoretic problems
arising in VLSI design and in historical linguistics. ASP helps
organizers of computer science conferences assign submissions to referees
in accordance with their preferences. Syntactically, ASP programs look
like Prolog programs, but the computational mechanisms used in ASP are
different: they are based on the ideas that have led to the development
of fast satisfiability solvers for propositional logic.
Date: Thursday, August 12th
Title: FoLLI General Meeting.
Agenda: To be announced.
Speaker: Karen Spärck Jones
Title: Language and information processing: numbers that count
Abstract: In early research on automated language and information processing
(LIP), statistical approaches were advocated both for theoretical
and for practical reasons. But though some innovative research was
done, these approaches fell into disfavour except in the area of
text retrieval and, later, speech recognition. In the last decade,
however, statistical approaches have come into their own and are
playing an important, even central, role in LIP. The lecture will
review the development of these ideas and methods, consider their
current contribution to LIP, and comment on the general lessons
for LIP that have emerged from this research.
Material: Slides References
Second Week: 16 - 20th of August, 2004
Date: Thursday, August 17th
Speaker: Elisabeth André
Title: Enhancing Embodied Conversational Agents with Social Intelligence
Abstract: The last decade has seen a general trend in Human Computer Interaction
to emulate certain aspects of human-human communication. Computers are
ever less viewed as tools and ever more as partners or assistants to
whom tasks may be delegated. In order to build dialogue systems that are
able to communicate with the user in a more natural manner, the
consideration of social aspects is inevitable. One aspect of social
interaction is the use of politeness strategies as they are described in
detail in Brown and Levinson's (1987) seminal work. Previous work has
concentrated for the most part on the linguistic aspects of politeness
strategies. But behaviours of politeness are inherently multimodal. For
instance, friendly facial expressions may help to mitigate face threats
evoked by criticism. In my talk, I will report on both verbal and
nonverbal aspects of social communication and describe our approach to
the development of computer-based embodied conversational agents that
are able to vary their politeness behaviours based upon the emotional
state of synthetic and human dialogue partners.
Date: Thursday, August 19th
Speaker: Gérard Huet
Title: Splitting the Entropy Gordian Knot
Abstract: A natural language analyser must fight the entropy of the
language combinatorics in order not to over-generate too much in its syntactic layers. A
divide and conquer strategy is on the one hand to store a maximum of information in the
lexicon, by lexicalizing the grammar, and by processing local feature constraints,
and on the other hand to build a stochastic analyser, able to predict dislocations and
to catch long distance dependencies. This general partition of information suggests
two structures for treebank corpuses, one for lexicon acquisition, the other one for
stochastic grammar training. It is argued that such general principles are useful
for designing linguistic resources interoperable between computational platforms.
Further details will be announced here shortly.
© 2003, 2004 LORIA, Carlos Areces.