Towards a general theory of action and time
Artificial Intelligence
A new algorithm for parsing generalized phrase structure grammar
A new algorithm for parsing generalized phrase structure grammar
A library of generic concepts for composing knowledge bases
Proceedings of the 1st international conference on Knowledge capture
Algorithms for Inverse Reinforcement Learning
ICML '00 Proceedings of the Seventeenth International Conference on Machine Learning
Attempto Controlled English - Not Just Another Logic Specification Language
LOPSTR '98 Proceedings of the 8th International Workshop on Logic Programming Synthesis and Transformation
Talking rabbit: a user evaluation of sentence production
CNL'09 Proceedings of the 2009 conference on Controlled natural language
Naturalness vs. predictability: a key debate in controlled languages
CNL'09 Proceedings of the 2009 conference on Controlled natural language
Fuzzy logic = computing with words
IEEE Transactions on Fuzzy Systems
Hi-index | 0.00 |
We discuss extensions to a controlled natural language allowing spatiotemporal expressions to be interpreted as fuzzy logic functions. The extensions first required new sentence templates. Next, changes to a GPSG parser modified its lexicon, and then extended its parsing and logical form rules to allow user-defined spatial and temporal constraints to be extracted. The sentence templates ground user-defined culturally-specific times and places to boundaries surrounding prototypical ideals. Query points, defined by location and time, are compared to these definitions using Gaussians centered at prototypical 'ideal' times or places. The Gaussians provide soft fall-off at the boundaries. Fuzzy logic operators allow larger expressions to be interpreted, analogous to Boolean combinations of terms. The mathematically-interpreted spatiotemporal terms act as domain features for a machine learning algorithm. They allow easy specification (compared to programming) of basis functions for an inverse reinforcement learning algorithm that detects anomalous vehicle tracks or suspicious agent behavior.