基于语义的英文短语检索与搭配推荐及其在辅助ESL学术写作中的应用

发布时间：2018-02-02 02:35

本文关键词： ESL写作语义查询表达搭配语料库社交网络慕课人机交互　出处：《计算机学报》2016年04期 　论文类型：期刊论文

【摘要】：学术英文写作对于母语非英语的(English as a Second Language,ESL)学者而言是一项挑战.现有的ESL写作辅助系统均基于连续单词(n-gram)在语料库中出现的频率来构建,而忽略了语义信息对于ESL写作的作用.文中提出基于语义的写作辅助方法,支持按照词性、搭配类型和概念扩展等语义条件来检索短语和自动推荐搭配.此外,为了方便英语知识有限的ESL学者利用语义条件进行检索,文中还设计了易于理解的短语检索界面.该界面提供包含语义修饰符的查询表达式,并可根据用户输入的部分查询表达式在线提示和补全.最后,为验证语义方法的有效性,文中实现并部署了ESLWriter系统.用户实验表明,ESLWriter可以有效地推荐搭配并提供短语检索结果,其查询界面直观易用;ESL学者通过混合使用自动搭配推荐功能和短语检索功能,写作质量和写作信心得到有效提高.这些结果证明了语义信息在ESL写作辅助中的重要作用.
[Abstract]:Academic English writing in English as a Second Language for non-native English speakers. The existing ESL writing aid systems are based on the frequency of continuous word n-grams appearing in the corpus. The semantic information is neglected in ESL writing. In this paper, a semantic based approach is proposed to support the writing according to the part of speech. Semantic conditions such as collocation types and conceptual extensions are used to retrieve phrases and automatically recommend collocations. In addition, ESL scholars with limited English knowledge can use semantic conditions to retrieve them. An easy to understand phrase retrieval interface is also designed. The interface provides query expressions that contain semantic modifiers and can be prompted and completed online according to some query expressions entered by the user. In order to verify the validity of the semantic method, a ESLWriter system is implemented and deployed. User experiments show that ESL Writer can effectively recommend collocations and provide phrase retrieval results. Its query interface is intuitionistic and easy to use; ESL scholars improve their writing quality and writing confidence by combining the functions of automatic collocation recommendation and phrase retrieval. These results prove that semantic information plays an important role in ESL writing assistance.
【作者单位】：清华大学计算机科学与技术系;青海大学计算机技术与应用系;
【分类号】：TP391.3
【正文快照】： 人机交互.E-mail:yeshuangzhu@gmail.com.喻纯,男,1984年生,博士,中国计算机学会(CCF)学生会员,主要研究方向为图形用户界面、交互式桌面等.史元春,女,1967年生,博士,教授,博士生导师,中国计算机学会(CCF)常务理事、高级会员,主要研究领域为人机交互、多媒体、普适计算等.1引

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