| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
This research developed a novel document retrieval technique based on co-citation networks that were improved by word-based linkages. Specifically, this research proposed two ideas: 'satellite documents' and 'rough co-citation' as keys to effectively enlarge co-citation networks. Results of the information retrieval experiments showed that the proposed retrieval methods, which used co-citation networks enlarged by these ideas, outperformed a baseline retrieval method using original co-citation networks.
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