Analyisis of Search Engines' Trustworthiness
| Project/Area Number |
21300038
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Media informatics/Database
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| Research Institution | Waseda University |
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Principal Investigator |
YAMANA Hayato 早稲田大学, 理工学術院, 教授 (40230502)
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUYAMA Yasuo (60125804)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| 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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| Keywords | 検索エンジン / 信頼性 / 情報検索 / ヒット数 / 信憑性 / ランキング / 検索結果数 / データマイニング |
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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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Report
(4 results)
Research Products
(44 results)
