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Erschienen in:
2010 | OriginalPaper | Buchkapitel
Efficient Interactive Smart Keyword Search
verfasst von : Shijun Li, Wei Yu, Xiaoyan Gu, Huifu Jiang, Chuanyun Fang
Erschienen in: Web Information Systems Engineering – WISE 2010
Verlag: Springer Berlin Heidelberg
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Traditional information systems usually return few answers if a user submits an incomplete query. Users often feel “left in the dark” when they have limited knowledge about the underlying data. They have to use a try-and-see approach to modify queries and find answers. In this paper we propose a novel approach to keyword search which can provide predicted keywords when a user submits a few characters of the underlying data in order. We study research challenges in this framework for large amounts of data. Since each keystroke of the user could invoke a query on the backend, we need efficient algorithms to process each query within milliseconds. We develop an incremental-search algorithm using previously computed and cached results in order to achieve an interactive speed. Some experiments have been conducted to prove the practicality of this new computing paradigm.