1890 search results - page 51 / 378 » Querying Big Data by Accessing Small Data |
SDMW
2007
Springer
15 years 5 months ago
2007
Springer
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...
WWW
2001
ACM
15 years 11 months ago
2001
ACM
A wealth of information is available on the Web. But often, such data are hidden behind form interfaces which allow only a restrictive set of queries over the underlying databases...
111
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SDMW
2009
Springer
15 years 5 months ago
2009
Springer
In this paper we investigate the feasibility and efficiency of mapping XML data and access control policies onto relational and native XML databases for storage and querying. We de...
116
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EDBTW
2006
Springer
15 years 2 months ago
2006
Springer
Several query languages have been proposed for managing data streams in modern monitoring applications. Continuous queries expressed in these languages usually employ windowing con...
ACL
2009
14 years 8 months ago
2009
In this paper, we introduce a multilingual access and retrieval system with enhanced query translation and multilingual document retrieval, by mining bilingual terminologies and a...