Computation on Sentence Semantic Distance for Novelty Detection
文献类型：期刊论文
| 作者 | Hua-Ping Zhang; Bing Wang; Shuo Bai; Jian Sun |
| 刊名 | Journal of Computer Science and Technology
 |
| 出版日期 | 2005 |
| 卷号 | 20期号:3页码:331-337 |
| 关键词 | Novelty Detection Sentence Semantic Distance Categorization Machine Translation Chinese Chinese Sign Language Rule |
| 英文摘要 | Novelty detection is to retrieve new information andfilter redundancy from given sentences that are relevant to a specifictopic. In TREC2003, the authors tried an approach to novelty detectionwith semantic distance computation. The motivation is to expand asentence by introducing semantic information. Computation on semanticdistance between sentences incorporates WordNet with statisticalinformation. The novelty detection is treated as a binaryclassification problem: new sentence or not. The feature vector, usedin the vector space model for classification, consists of variousfactors, including the semantic distance from the sentence to the topicand the distance from the sentence to the previous relevant contextoccurring before it. New sentences are then detected with Winnow andsupport vector machine classifiers, respectively. Several experimentsare conducted to survey the relationship between different factors andperformance. It is proved that semantic computation is promising innovelty detection. The ratio of new sentence size to relevant size isfurther studied given different relevant document sizes. It isfound that the ratio reduced with a certain speed (about 0.86). Thenanother group of experiments is performed supervised with the ratio.It is demonstrated that the ratio is helpful to improve the noveltydetection performance. |
| 语种 | 英语 |
| 公开日期 | 2010-11-03 |
| 源URL | [http://ictir.ict.ac.cn/handle/311040/826]  |
| 专题 | 中国科学院计算技术研究所期刊论文_2005年英文 |
| 推荐引用方式 GB/T 7714 | Hua-Ping Zhang,Bing Wang,Shuo Bai,et al. Computation on Sentence Semantic Distance for Novelty Detection[J]. Journal of Computer Science and Technology,2005,20(3):331-337. |
| APA | Hua-Ping Zhang,Bing Wang,Shuo Bai,&Jian Sun.(2005).Computation on Sentence Semantic Distance for Novelty Detection.Journal of Computer Science and Technology,20(3),331-337. |
| MLA | Hua-Ping Zhang,et al."Computation on Sentence Semantic Distance for Novelty Detection".Journal of Computer Science and Technology 20.3(2005):331-337. |
入库方式： OAI收割
来源：计算技术研究所
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