Document similarity search based on manifold-ranking of TextTiles | |
Wan, Xiaojun ; Yang, Jianwu ; Xiao, Jianguo | |
2006 | |
英文摘要 | Document similarity search aims to find documents similar to a query document in a text corpus and return a ranked list of similar documents. Most existing approaches to document similarity search compute similarity scores between the query and the documents based on a retrieval function (e.g. Cosine) and then rank the documents by their similarity scores. In this paper, we proposed a novel retrieval approach based on manifold-ranking of TextTiles to re-rank the initially retrieved documents. The proposed approach can make full use of the intrinsic global manifold structure for the TextTiles of the documents in the re-ranking process. Experimental results demonstrate that the proposed approach can significantly improve the retrieval performances based on different retrieval functions. TextTile is validated to be a better unit than the whole document in the manifold-ranking process. ? Springer-Verlag Berlin Heidelberg 2006.; EI; 0 |
语种 | 英语 |
内容类型 | 其他 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/321480] ![]() |
专题 | 计算机科学技术研究所 |
推荐引用方式 GB/T 7714 | Wan, Xiaojun,Yang, Jianwu,Xiao, Jianguo. Document similarity search based on manifold-ranking of TextTiles. 2006-01-01. |
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