Oesterreichisches Forschungsinstitut fuer Artificial Intelligence (OeFAI) Schottengasse 3, A-1010 Wien Tel.: +43-1-5336112, Fax: +43-1-5320652, Email: sec@ai.univie.ac.at ------------------------------------------------------------------------- VORTRAG ******* Dr.Frederic KAPLAN SONY Computer Science Lab Paris Using Agents Playing Language Games to Understand Spontaneous Lexicon Change ---------------------------------------- We argue that lexicon change can be explained through the stochasticity observed in real-world natural language use. To support this thesis, we model language use through language games played in evolving populations of agents. Obtaining variation is not obvious, because a language com- munity should also have a natural tendency towards coherence, otherwise communication would not be effective. An adequate explanatory model of lexicon change must therefore show (1) how a coherent lexicon may arise in a group of agents, (2) how nevertheless the lexicon may remain intern- ally varied and exhibit constant innovation, (3) how some of this vari- ation may be amplified to become dominant in the population. Zeit: Montag, 20.Juli 1998, 18:30 Uhr Ort: OeFAI, Schottengasse 3, 1010 Wien 1. OESTERREICHISCHES FORSCHUNGSINSTITUT FUER ARTIFICIAL INTELLIGENCE o.Univ.-Prof.Dr.Robert Trappl