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» Query Performance Prediction: Evaluation Contrasted with Eff...
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SIGMOD
2007
ACM
229views Database» more  SIGMOD 2007»
15 years 10 months ago
Spark: top-k keyword query in relational databases
With the increasing amount of text data stored in relational databases, there is a demand for RDBMS to support keyword queries over text data. As a search result is often assemble...
Yi Luo, Xuemin Lin, Wei Wang 0011, Xiaofang Zhou
JCDL
2005
ACM
161views Education» more  JCDL 2005»
15 years 3 months ago
Downloading textual hidden web content through keyword queries
An ever-increasing amount of information on the Web today is available only through search interfaces: the users have to type in a set of keywords in a search form in order to acc...
Alexandros Ntoulas, Petros Zerfos, Junghoo Cho
CIKM
2008
Springer
14 years 11 months ago
Active relevance feedback for difficult queries
Relevance feedback has been demonstrated to be an effective strategy for improving retrieval accuracy. The existing relevance feedback algorithms based on language models and vect...
Zuobing Xu, Ram Akella
SIGIR
2003
ACM
15 years 3 months ago
Automatic ranking of retrieval systems in imperfect environments
The empirical investigation of the effectiveness of information retrieval (IR) systems requires a test collection, a set of query topics, and a set of relevance judgments made by ...
Rabia Nuray, Fazli Can
ICIP
2004
IEEE
15 years 11 months ago
Segmentation-driven perceptual quality metrics
We present a full-reference and a no-reference perceptual video quality metric that incorporate both low-level and high-level aspects of vision. Low-level aspects include color pe...
Andrea Cavallaro, Stefan Winkler