作者: Zhixu Li , Shuo Shang , Qing Xie , Xiangliang Zhang
DOI: 10.1007/978-3-319-05813-9_29
关键词:
摘要: Web-based Data Imputation enables the completion of incomplete data sets by retrieving absent field values from Web. In particular, complete fields can be used as keywords in imputation queries for fields. However, due to ambiguity these and complexity on Web, different may retrieve answers same value. To decide most probable right answer each filed value, existing method issues quite a few available then vote deciding answer. As result, we have issue large number filling all an set, which brings overhead. this paper, work reducing cost two aspects: First, propose query execution scheme secure value issuing possible. Second, recognize prune that probably will fail return any priori. Our extensive experimental evaluation shows our proposed techniques substantially reduce without hurting its high accuracy.