What is in question is not the retrieval of an absolute, fixed or "true" meaning that can be read off and checked for accuracy, or some timeless relation of the text to the world.
问题不在于检索那些能够读出且能检验正误的绝对的、固定的或“真实的”意思，也不在于找出文本与世界的某些永恒联系。
Information retrieval: search algorithms, information extraction, question answering, cross-lingual retrieval and multimedia retrieval.
信息获取：搜索算法、信息抽取、自动应答、跨语言获取、多媒体获取。
Question Answering (QA) is the next generation of search engine which is related to natural language processing, information retrieval and etc.
自动问答系统是集自然语言处理技术和信息检索技术于一身的新一代智能搜索引擎。
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