2867 search results - page 19 / 574 » Effectiveness of Index Expressions |
GLOBECOM
2007
IEEE
15 years 6 months ago
2007
IEEE
— In this paper, we study the effect of delayed and limited feedback of beamformer codebook index on the error rate of transmit beamforming (BF) over Rayleigh fading channels. Cl...
SIGMOD
2003
ACM
15 years 12 months ago
2003
ACM
Decision-support applications generate queries with complex predicates. We show how the factorization of complex query expressions exposes significant opportunities for exploiting...
ENTCS
2002
14 years 11 months ago
2002
Classically, any absolute continuous real function is of bounded variation and hence can always be expressed as a difference of two increasing continuous functions (socalled Jorda...
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ICDE
2006
IEEE
16 years 1 months ago
2006
IEEE
In this paper, we present the ArchIS system that achieves full-functionality transaction-time databases without requiring temporal extensions in XML or database standards. ArchIS&...
WAIM
2007
Springer
15 years 6 months ago
2007
Springer
Abstract. The heterogeneity nature of XML data creates the need for approximate query answering. In this paper, we present an XML system that cooperates with users to provide user-...