Extraction and semantic computing of Chinese textual time information

In order to resolve a series of problems including representation,extraction and temporal semantic computation of Chinese text temporal information,a temporal information processing system which can be applicable to various natural languages processing mission is proposed.After analysing Chinese sentences temporal elements and component of temporal phrase,adopting a concept of temporal expression,the phrase expressing temporal information were separated into several sub-constituents which have unitary semantic and can be identified easily.On this basis,the methods of extracting,comprehending and semantic computation of temporal information based on the rule were studied.