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H.: Using the k nearest neighbor method and bm25 in the patent document categorization subtask at ntcir-5 (2005)
| Venue: | In: Proc. of NTCIR-5 Workshop Meeting |
| Citations: | 1 - 0 self |
BibTeX
@INPROCEEDINGS{Murata05h.:using,
author = {Masaki Murata and Toshiyuki Kanamaru and Tamotsu Shirado and Hitoshi Isahara},
title = {H.: Using the k nearest neighbor method and bm25 in the patent document categorization subtask at ntcir-5},
booktitle = {In: Proc. of NTCIR-5 Workshop Meeting},
year = {2005}
}
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Abstract
Patent processing is extremely important for indus-try, business, and law. We participated in the F-term categorization subtask at NTCIR-5, in which, we clas-sified patent documents into their F-terms using the k-nearest neighbor method. For document classifica-tion, F-term categories are both very precise and use-ful. We entered five systems in the F-term categoriza-tion subtask. They obtained the best f-measures of all 18 participating systems. This confirmed the effective-ness of our method. After the contest, we performed the experiments again during the theme categoriza-tion subtask, even though we did not officially enter. The results showed that our system obtained higher f-measures than the highest obtained by the other sys-tems performing the subtask. This also confirmed the effectiveness of our method.
