Paper: Problem Localization Strategies For Pramatics Processing In Natural-Language Front Ends

ACL ID P84-1030
Title Problem Localization Strategies For Pramatics Processing In Natural-Language Front Ends
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 1984
Authors

Problem localization Is the identification of the most slgnlflcant failures in the AND-OR tree resulting from an unsuocass/ul attempt to achieve a goal, for instance, In planning, backward-chnining inference, or top-down parnin~ We examine beurls- tics and strategies for problem localization in the context of using a planner to check for pragmatic failures in natural language input to computer sys- tems, such as a cooperative natural language interface to Unix ••. Our heuristics call for selecting the most hopeful branch at ORs, but the most problematic one at ANDs. Surprise scores and speclal-purpose rules are the maln strategies sug- gested to determine this. I PRAGMATIC OVERSHOOT AND PRCBLEM LOCALIZATION Even if the syntactic and semantic content of a request is correct, so that a n...