| Presentation | 2002/7/10 The Verification on the Information Retrieval Accuracy by a Dynamic User's Keyword Definition Method Yukio CHEN, Yuuya MATUMOTO, Machiko UTUMI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Queries used to obtain the same retrieval result may be different if they are created by different users. This difference of queries affects the information retrieval accuracy. In this paper, it is examined that how the difference of queries affects the retrieval accuracy of Latent Semantic Indexing (LSI), a vector information retrieval method. In LSI, queries and retrieval candidates are vectorized. Information retrieval is performed by calculating the resemblance between the vectors of queries and retrieval candidates, and ranking the retrieval candidates based on the calculated result. By using LSI, the deterioration of the retrieval accuracy caused by the semantic ambiguity of keywords is held. In this reason, LSI is noticed for the application to the document retrieval and cross-language information retrieval. In this paper, a dynamic keyword definition method is proposed, which simulates the difference of users. Experiments are carried out by using the proposed method to verify the effect of the difference of queries on the retrieval accuracy of LSI. Based on the experimental results, the change patterns of the retrieval accuracy, which are affected by the difference of queries, are clarified. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | vector retrieval method / LSI / information retrieval / database |
| Paper # | DE2002-15 |
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| Conference Information | |
| Committee | DE |
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| Conference Date | 2002/7/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Data Engineering (DE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The Verification on the Information Retrieval Accuracy by a Dynamic User's Keyword Definition Method |
| Sub Title (in English) | |
| Keyword(1) | vector retrieval method |
| Keyword(2) | LSI |
| Keyword(3) | information retrieval |
| Keyword(4) | database |
| 1st Author's Name | Yukio CHEN |
| 1st Author's Affiliation | Department of Information & Computer Sciences, Kanagawa Institute of Technology() |
| 2nd Author's Name | Yuuya MATUMOTO |
| 2nd Author's Affiliation | Department of Information & Computer Sciences, Kanagawa Institute of Technology |
| 3rd Author's Name | Machiko UTUMI |
| 3rd Author's Affiliation | Department of Information & Computer Sciences, Kanagawa Institute of Technology |
| Date | 2002/7/10 |
| Paper # | DE2002-15 |
| Volume (vol) | vol.102 |
| Number (no) | 207 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |