Abstract:Metaphor is pervasive in human language and must be treated for natural language understanding. Firstly, this paper discusses the nature of metaphor and the manifestation of metaphorical expressions in language. Then the automatic metaphor processing is divided into three subtasksmetaphor recognition, metaphor understanding and metaphor generation. This paper makes an extensive survey of researches on the automatic metaphor processing over the last three decades, emphasizing achievements in recent years. Researches on metaphor knowledge bases are also introduced, which are indispensable for metaphor processing. The applications of metaphor processing to natural language processing tasks are also discussed. Finally, this paper puts forward some suggestions for the future researches on the automatic Chinese metaphor processing. Key words atrificial intelligence; machine translation; automatic metaphor processing; natural language processing; machine learning; knowledge acquisition
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