Reactive Control of Dynamic Progressive Processing
نویسندگان
چکیده
Shlomo Zilberstein Computer Science Department University of Massachusetts Amherst, MA 01003 U.S.A. [email protected] Abdel-Illah Mouaddib CRIL-IUT de Lens-Universit e d'Artois Rue de l'universit e, S. P. 16 62307 Lens Cedex France [email protected] Abstract Progressive processing is a model of computation that allows a system to tradeo computational resources against the quality of results. This paper generalizes the existing model to make it suitable for dynamic composition of information retrieval techniques. The new framework addresses e ectively the uncertainty associated with the duration and output quality of each component. We show how to construct an optimal meta-level controller for a single task based on solving a corresponding Markov decision problem, and how to extend the solution to the case of multiple and dynamic tasks using the notion of an opportunity cost.
منابع مشابه
Reactive Control of Dynamic Progressive Processing
(a) Identify & add statistical pairs (b) Identify & add noun phrases (c) Identify LCA concepts
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