| Presentation | 2001/11/9 Collaborative Filtering Based on Correlation between Items Kohei INOUE, Kiichi URAHAMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In collaborative filtering, it is necessary to respond to user request for recommendation in real time. Method based on correlation between users is often employed for estimating preference values of items. However, it becomes difficult to respond in real time in propotion to the number of persons in database because the computational cost of online prcessing is high. In this paper, we present a method for estimating preference values on the basis of correlation between items. Correlation coefficient is slightly modified to reduce the bias of preference value by persons. It is experimentally shown that the present method estimates the preference values more accurately and faster than the previous method. A method is also presented for selecting optimal items to request users to input their preference. It is verified that the accuracy of estimation by the method is higher than that by the previous one. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | collaborative filtering / online estimation / correlation between items / presentation of optimal items |
| Paper # | NC 2001-65 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 2001/11/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Collaborative Filtering Based on Correlation between Items |
| Sub Title (in English) | |
| Keyword(1) | collaborative filtering |
| Keyword(2) | online estimation |
| Keyword(3) | correlation between items |
| Keyword(4) | presentation of optimal items |
| 1st Author's Name | Kohei INOUE |
| 1st Author's Affiliation | Faculty of Visual Communication Design, Kyushu Institute of Design() |
| 2nd Author's Name | Kiichi URAHAMA |
| 2nd Author's Affiliation | Faculty of Visual Communication Design, Kyushu Institute of Design |
| Date | 2001/11/9 |
| Paper # | NC 2001-65 |
| Volume (vol) | vol.101 |
| Number (no) | 432 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |