Research of the Relationship between Users' Interventions and Users' Satisfactions for Recommender Systems
| Project/Area Number |
20700085
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Media informatics/Database
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| Research Institution | Osaka University |
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Principal Investigator |
HIJIKATA Yoshinori Osaka University, 基礎工学研究科, 准教授 (10362641)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | Webサービス / 情報推薦 / 情報フィルタリング / ユーザ関与 / ユーザ満足度 / コンテキスト入力 / コンテンツ属性指定 / ユーザプロファイル編集 / ベイズ推定 / サーバ・クライアント / コンテキスト / 被験者実験 / 発見性 |
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| Research Abstract |
We investigated the relationship between user intervention and user satisfaction for information recommendation. We raised two kinds of hypothesis : (1) User intervention itself improves user satisfaction and (H2) The more the user intervenes to the process of recommendation, the more the user satisfaction improves. We implemented a system in which several kinds of user intervention with different level of user intervention are performed. We conducted a user experiment. Although we could not find that H1 is not supported, we found that H2 is supported. We also propose another type of user intervention. It is the input of usage objectives of the facilities in the real world. We implemented a system that allows user to input their usage objectives using only cursor button. We found that users can make a decision with high confidence using our proposed system with small increment of their burdens.
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Report
(4 results)
Research Products
(20 results)
