710 search results - page 49 / 142 » Efficiency of Nested Relational Document Database Systems |
134
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CCS
2008
ACM
15 years 3 months ago
2008
ACM
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
101
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VLDB
1990
ACM
15 years 5 months ago
1990
ACM
This paper studies a number of hash-based join algorithms for general purpose multiprocessor computers with shared memory where the amount of memory allocated to the join operatio...
100
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INFSOF
2006
15 years 1 months ago
2006
Providing efficient access to XML documents becomes crucial in XML database systems. More and more concurrency control protocols for XML database systems were proposed in the past...
130
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KES
2006
Springer
15 years 1 months ago
2006
Springer
Named entities (e.g., "Kofi Annan", "Coca-Cola", "Second World War") are ubiquitous in web pages and other types of document and often provide a simpl...
106
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MTA
2006
15 years 1 months ago
2006
While multimedia documents are sequentially presented to users, an information filtering (IF) system is useful to achieve a good retrieval performance in terms of both quality and ...