Constructing a lexicon of action
Takenobu Tokunaga, Manabu Okumura, Suguru Saito, Hozumi Tanaka · 2002
This paper describes a Japanese speech dialogue system that enables a user to interact with agents in a virtual world and proposes a design framework for building a lexicon of action.This lexicon is used to realize the behavior of the agents in response to the user's commands.The lexicon has two levels -a macro and micro level.The system uses the macro-level lexicon, which is similar to a conventional plan library, to translate the user's goal to a sequence of basic movements.This process is the same as conventional planning with symbol manipulation.The micro-level lexicon is used to translate the basic movements into animation, which is represented by a sequence of avatar postures.We discuss how to define a set of basic movements and how to make these basic movements reusable.