1203 search results - page 22 / 241 » Performance Evaluation of Spatio-temporal Selectivity Estima... |
GLOBECOM
2009
IEEE
15 years 2 months ago
2009
IEEE
We study the impact of the shape of optical filters on the bit error rate (BER) of a multi-channel spectrum-sliced wavelength division multiplexed (SS-WDM) system, incorporating no...
APCSAC
2000
IEEE
15 years 2 months ago
2000
IEEE
Hardware square-root units require large numbers of gates even for iterative implementations. In this paper, we present four low-cost high-performance fullypipelined n-select impl...
192
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ICDE
2004
IEEE
15 years 11 months ago
2004
IEEE
Twig queries represent the building blocks of declarative query languages over XML data. A twig query describes a complex traversal of the document graph and generates a set of el...
182
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SIGMOD
2006
ACM
15 years 10 months ago
2006
ACM
This paper introduces the Tuple Graph (TuG) synopses, a new class of data summaries that enable accurate selectivity estimates for complex relational queries. The proposed summari...
ICIP
2003
IEEE
16 years 2 min ago
2003
IEEE
In this paper, we evaluate and investigate two main types of relevance feedback algorithms; the Euclidean and the correlation?based approaches. In the first case, we examine heuri...