中文文本时间信息获取及语义计算  

Extraction and semantic computing of Chinese textual time information

作　　者：徐永东[1] 徐志明[1] 王晓龙[1] 刘远超[1] 

机构地区：[1]哈尔滨工业大学计算机科学与技术学院,哈尔滨150001

出　　处：《哈尔滨工业大学学报》2007年第3期438-442,共5页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(60373100)

摘　　要：为了解决中文文本中时间信息的形式表达、抽取及时间语义计算等一系列问题,提出了一种可以适用于多种自然语言处理任务的时间信息处理系统,通过对汉语句子时间要素的分析以及时间词语构成形式的研究,采用一种时间表达式的概念,将承载时间信息的短语按照功能的不同分解成若干容易识别,语义单一的“小”的成分,并在此基础上给出基于规则的时间信息抽取、理解及时间语义的计算方法.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.

关 键 词：时间表达式 时间信息抽取 时间语义计算 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]