Metaphor Comprehension Method Based on Relevance Constraints

隐喻理解已成为语言学、认知学、计算机科学等研究的重要课题,也是自然语言处理中不可避免的任务.提出一种基于相关性约束的隐喻理解方法,利用隐含的相关; 角度计算目标域和源域的相关程度.首先,基于词、词的主题及语篇的主题扩展出多层次的语义表示;然后,利用上下文信息的相关关系,构建多层次的相关性模型; ,模型通过多种角度的相关关系将跨层次的语义信息关联起来;接着,采用random; walk的方法,通过迭代计算获得隐含角度的相关关系;最后,选择与目标域具有最大相关度的属性作为隐喻理解的结果.将模型应用到隐喻理解任务中,实验结; 果表明,该方法能够有效地实现隐喻自动理解.Metaphor comprehension has become an important issue of linguistics,; cognitive science and computer science. It is also an unavoidable task; of natural language processing. This paper presents a novel metaphor; comprehension method to make full use of global information based on; relevance constraints. The method uses implied perspective to calculate; the relevance degree between the target and source domains. First,; multi-level semantic representation is obtained based on the semantic; representation of word, topic features of word and topic features of; discourse. Next, the degree of relevance relations is calculated and the; relevance model is generated. Additionally, relevance relations is used; to connect cross-level nodes from different perspectives. Then, using; random walk algorithm, the relevance relations are acquired from latent; perspectives through iterative computations. Finally, the target; attribute that has the maximum relevance degree with the target domain; is selected as the comprehension result. Experimental results show that; the presented method is effective in metaphor comprehension.国家自然科学基

Metaphor Comprehension Based on Contextual Information

隐喻作为自然语言中的一种常见现象，不仅仅是一种修辞手段，更是人类的一种认知方式。现如今，隐喻已经成为语言学、认知学、计算机科学等研究的重要课题。隐喻理解也是自然语言处理中不能避免的任务。 从认知的角度考虑，隐喻的表达遵守“相关”原则，即目标域和源域之间存在某种相关性。相关性是基于认识概念的角度产生的，例如性格、功能、颜色等。如果两个概念在某种角度上产生关联，就认为两者在该角度具有相关性。而隐喻理解就是寻找最佳的相关性的过程。又因为隐喻的开放性和不确定性，人们可能在目标域和源域之间找到多个相关的角度，产生不同的解释。为了避免错误的理解，上下文往往会提供足够的信息。在此基础上，本文提出基于角度的...The metaphor, as a kind of common phenomenon in natural language, is not only a rhetorical, but also a cognitive style of human beings. Nowadays, metaphor has become an important issue of linguistics, cognitive science and computer science. Metaphor comprehension is an unavoidable task of natural language processing. From the point of cognition, the metaphor expression accord with the prin...学位：工学硕士院系专业：信息科学与技术学院_模式识别与智能系统学号：3152013115327