Dong-Yul Ra

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This paper talks about several schemes for improving retrieval effectiveness that can be used in the named page finding tasks of web information retrieval (Overview of the TREC-2002 web track. These methods were applied on top of the basic information retrieval model as additional mechanisms to upgrade the system. Use of the title of web pages was found to(More)
As our first TREC participation, four runs were submitted for the ad hoc task and two runs for the home page finding task in the web track. For the ad hoc task we experimented on the usefulness of anchor texts. However, no significant gain in retrieval effectiveness was observed. The substring relationship between URL's was found to be effective in the home(More)
The HKIB, or Hankookilbo, test collections are two archives of Korean newswire stories manually categorized with semi-hierarchical or hierarchical category taxonomies. The base newswire stories were made available by the Hankook Ilbo (The Korea Daily) for research purposes. At first, Chungnam National University and KISTI collaborated to manually tag 40,075(More)
As a part of work on alignment of the English and Korean parallel corpus, this paper presents a statistical translation model incorporating linguistic knowledge of syntactic and phrasal information for better translations. For this, we propose three models: First, we incorporate syntactic information such as part of speech into the word-based lexical(More)
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