查明用戶主題熟悉度對網絡查詢重構行為的影響,可以為網絡個性化服務提供依據。通過問卷調查獲取用戶熟悉度數據,通過屏幕錄像軟件記錄網絡查詢重構行為數據,采用統計學方法分析用戶主題熟悉度對網絡查詢重構行為的影響,研究結果顯示,高熟悉度用戶在查詢重構時更偏向于使用增詞重構,重構類型中詳細化應用最多,低熟悉度用戶則使用更多的是減詞重構,一般化為最常見的重構類型,高熟悉度用戶重構時間更長,關鍵詞變化數也更多,低熟悉度用戶則會保存更多的頁面。

Finding out the influence of users’ topic familiarity on the query reformulation behaviors on the Web can provide the basis for personalized service. The data of users’ topic familiarity are obtained through the questionnaires,and users’ query reformulation behaviors are recorded by the screen recording software. The data are analyzed by statistical analysis method. The results show that the users with higher topic familiarity are more inclined to add items to reformulate and specify their queries,while the users with lower topic familiarity are more likely to reduce items to reformulate and generalize their queries. In addition,the higher topic familiarity users spend more time on the reformulation and adjust keywords,while lower familiarity users save more pages.