Authority-based keyword search in databases
Authority-based keyword search in databases
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DOI:
10.1145/1331904.1331905
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发表时间:
2008-03
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影响因子:
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通讯作者:
Vagelis Hristidis;Heasoo Hwang;Y. Papakonstantinou
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文献类型:
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作者:
Vagelis Hristidis;Heasoo Hwang;Y. Papakonstantinou
Our system applies authority-based ranking to keyword search in databases modeled as labeled graphs. Three ranking factors are used: the relevance to the query, the specificity and the importance of the result. All factors are handled using authority-flow techniques that exploit the link-structure of the data graph, in contrast to traditional Information Retrieval. We address the performance challenges in computing the authority flows in databases by using precomputation and exploiting the database schema if present. We conducted user surveys and performance experiments on multiple real and synthetic datasets, to assess the semantic meaningfulness and performance of our system.