Name
Title | ||
|---|---|---|
Using the K Nearest Neighbor Method and BM25 in the Patent Document Categorization Subtask at NTCIR-5 |
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. |
Year | Venue | Field |
|---|---|---|
2005 | NTCIR | Document classification,k-nearest neighbors algorithm,Categorization,Information retrieval,Computer science,CONTEST |
DocType | Citations | PageRank |
Conference | 1 | 0.41 |
References | Authors | |
5 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Masaki Murat | 1 | 28 | 4.85 |
| Toshiyuki Kanamaru | 2 | 4 | 1.21 |
| Tamotsu Shirado | 3 | 14 | 5.55 |
| Hitoshi Isahara | 4 | 2 | 5.53 |