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» Optimizing Query Processing for the Hidden Web
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77
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WWW
2004
ACM
15 years 10 months ago
Index structures and algorithms for querying distributed RDF repositories
A technical infrastructure for storing, querying and managing RDF data is a key element in the current semantic web development. Systems like Jena, Sesame or the ICS-FORTH RDF Sui...
Heiner Stuckenschmidt, Richard Vdovjak, Geert-Jan ...
90
Voted
ACL
2009
14 years 7 months ago
Query Segmentation Based on Eigenspace Similarity
Query segmentation is essential to query processing. It aims to tokenize query words into several semantic segments and help the search engine to improve the precision of retrieva...
Chao Zhang, Nan Sun, Xia Hu, Tingzhu Huang, Tat-Se...
SIGMOD
2006
ACM
232views Database» more  SIGMOD 2006»
15 years 9 months ago
To search or to crawl?: towards a query optimizer for text-centric tasks
Text is ubiquitous and, not surprisingly, many important applications rely on textual data for a variety of tasks. As a notable example, information extraction applications derive...
Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay ...
AAAI
2008
14 years 11 months ago
Extracting Relevant Snippets for Web Navigation
Search engines present fix-length passages from documents ranked by relevance against the query. In this paper, we present and compare novel, language-model based methods for extr...
Qing Li, K. Selçuk Candan, Qi Yan
87
Voted
WWW
2005
ACM
15 years 10 months ago
Executing incoherency bounded continuous queries at web data aggregators
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
Rajeev Gupta, Ashish Puri, Krithi Ramamritham