排序方式： 共有245条查询结果，搜索用时 31 毫秒
11.
We present new methods of query expansion using terms that form lexical cohesive links between the contexts of distinct query terms in documents (i.e., words surrounding the query terms in text). The link-forming terms (link-terms) and short snippets of text surrounding them are evaluated in both interactive and automatic query expansion (QE). We explore the effectiveness of snippets in providing context in interactive query expansion, compare query expansion from snippets vs. whole documents, and query expansion following snippet selection vs. full document relevance judgements. The evaluation, conducted on the HARD track data of TREC 2005, suggests that there are considerable advantages in using link-terms and their surrounding short text snippets in QE compared to terms selected from full-texts of documents. 相似文献
12.
Niall Rooney David Patterson Mykola Galushka Vladimir Dobrynin 《Information processing & management》2006
Contextual document clustering is a novel approach which uses information theoretic measures to cluster semantically related documents bound together by an implicit set of concepts or themes of narrow specificity. It facilitates cluster-based retrieval by assessing the similarity between a query and the cluster themes’ probability distribution. In this paper, we assess a relevance feedback mechanism, based on query refinement, that modifies the query’s probability distribution using a small number of documents that have been judged relevant to the query. We demonstrate that by providing only one relevance judgment, a performance improvement of 33% was obtained. 相似文献
13.
基于LOD的关联参考服务构建研究 总被引：1，自引：0，他引：1
分析总结基于关联开放数据(LOD)构建关联参考服务的关键技术和方法,包括关联模型、关联数据获取、实体数据融汇。介绍关联参考服务相关的典型应用,并提出关联参考服务应用面临的关键问题。 相似文献
14.
成颖 《现代图书情报技术》2011,(9):46-53
基于相关性判据研究成果、学术信息检索系统特征调研成果、信息系统成功模型(ISSM)以及TEDS模型构建面向相关性判据的学术信息检索系统成功模型,对模型中的关系进行简要分析,并提出研究假设。 相似文献
15.
As an effective technique for improving retrieval effectiveness, relevance feedback (RF) has been widely studied in both monolingual and translingual information retrieval (TLIR). The studies of RF in TLIR have been focused on query expansion (QE), in which queries are reformulated before and/or after they are translated. However, RF in TLIR actually not only can help select better query terms, but also can enhance query translation by adjusting translation probabilities and even resolving some out-of-vocabulary terms. In this paper, we propose a novel relevance feedback method called translation enhancement (TE), which uses the extracted translation relationships from relevant documents to revise the translation probabilities of query terms and to identify extra available translation alternatives so that the translated queries are more tuned to the current search. We studied TE using pseudo-relevance feedback (PRF) and interactive relevance feedback (IRF). Our results show that TE can significantly improve TLIR with both types of relevance feedback methods, and that the improvement is comparable to that of query expansion. More importantly, the effects of translation enhancement and query expansion are complementary. Their integration can produce further improvement, and makes TLIR more robust for a variety of queries. 相似文献
16.
王小济 《齐齐哈尔师范高等专科学校学报》2014,(2):80-82
根据关联理论,产品说明翻译是动态的明示---推理过程,建立最佳关联是译者追求的目标。产品说明翻译效度受认知语境的影响,但取决于相关因素的趋同度。提高产品说明翻译应遵循3C原则,力求从信息、语言、文化三个方面寻求最佳关联。 相似文献
17.
从关联理论的角度看,翻译本质上也是一种交际行为。译者的责任是努力做到使原文作者的意图与译文读者的企盼相吻合,力争实现最佳关联。可是,在翻译实践中往往会存在些许翻译交际失败的情况。文章认为在翻译过程中,由于交际环境发生巨大变化而引起的关联性缺失是导致翻译交际失败的原因,具体表现在信息意图与交际意图的分离、语境假设的耗损与取消和语境含意的流失三个方面。选用《雾都孤儿》的荣如德译本和何文安译本作为研究对象,探讨在翻译的过程中应该如何重构关联,使交际在跨语言跨文化环境中得以顺利进行。 相似文献
18.
刘明志 《玉溪师范学院学报》2005,21(7):60-63
Sperber&Wilson的关联理论将交际看作一种认知活动,试图从人的认知特点和过程出发,揭示交际规律。关联理论使跨文化交际中的语用会话含意推导摆脱了Grice合作原则的束缚,也从认知的角度探讨了礼貌现象,为跨文化交际中话语的理解提供了新的理论依据,有助于解释跨文化语言交际活动中出现的语用失误与交际失败现象。 相似文献
19.
赵红 《黄冈职业技术学院学报》2010,12(4):85-88
品格证据是英美法系中证据规则颇令人费解的难题之一,英美证据立法确立了品格证据不具有相关性的一般规则,但在特殊情况下又对其加以保留。在我国,品格证据这一名词尚未进入法条,但司法实践中却偶有涉及。但无论是中国法系,还是英美法系,都将其纳入量刑考虑的因素。品格证据在量刑中始终大有作为。 相似文献
20.
刘吉俊 《思茅师范高等专科学校学报》2010,26(2):82-86
幽默在日常生活中起着非同小可的作用,调剂情绪,使交际达到更好的效果。语用学中的关联理论在20世纪80年代以来被研究者应用到语言学的各个领域中,并取得了丰硕的成果。同时,语言学界对幽默现象的兴趣日渐浓厚。将关联理论和幽默结合起来,通过列举相关例子,用关联理论的基本观点和要旨从话语的最大关联和最佳关联,明示一推理交际和认知语境三个方面对校园幽默进行解析。 相似文献