| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2011: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2010: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2009: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
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| Research Abstract |
Nowadays, search engines become indispensable for us to live a life ; however, trustworthiness of search engines are unclear. Especially, the number of search results, i. e., hit-count, usually varies about 100 to 1000 times increase or decrease even if we put them the same query word. In this research, we have made clear the transition characteristics of hit-counts based on 15 months investigation for Google, Yahoo! JAPAN and Bing. Moreover, we have proposed a new method to choose trustworthy hit-counts, which results in 99.5% precision when we compare two hit-counts on the point which query word has larger number of search results.
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