中文摘要：

事件挖掘就是从大量的、不完全的、人们事先不知道的,但同时又是潜在有用的信息中提取有用信息并概括为事件的过程。由于事件挖掘相对于话题检测与跟踪、信息检索、信息抽取等自然语言处理具备许多共性,并且具备预测事件发展的优越性,因此逐渐成为当前事件识别领域的研究热点。本文介绍事件挖掘相关研究的历史发展与应用背景,全新定义事件挖掘的概念与任务,并详细介绍事件挖掘任务相关的各种关键算法,尤其是语义链算法。指出事件挖掘的重要意义及其未来的发展趋势。

英文摘要：

Event detection is the course of extracting useful information from a large amount of incomplete,unknown in advance,but potentially useful information,it is summarized into event.Since the event detection has many common attributes to topic detection and tracking,information retrieval,information extraction and other natural language processing,and has the superiority of predicting the development of event,it gradually becomes a research hotspot of current event identifying.This paper introduces the research background,task definition and related algorithms of the event detection,especially the lexical semantic chaining＇s correlation algorithm.After analyzing the research situation of current event detection field,points out the trend of development in future.