304 search results - page 13 / 61 » Selectivity Estimation of Window Queries |
DEXAW
2007
IEEE
13 years 11 months ago
2007
IEEE
The problem of efficiently evaluating XPath and XQuery queries has become increasingly significant since more and more XML data is stored in its native form. We propose a novel op...
EDBT
2009
ACM
14 years 10 days ago
2009
ACM
The concept of time-constrained SQL queries was introduced to address the problem of long-running SQL queries. A key approach adopted for supporting time-constrained SQL queries i...
PODC
2006
ACM
14 years 1 months ago
2006
ACM
We study the problem of maintaining sketches of recent elements of a data stream. Motivated by applications involving network data, we consider streams that are asynchronous, in w...
BMCBI
2008
2008
WSPMaker: a web tool for calculating selection pressure in proteins and domains using window-sliding
13 years 7 months ago
Background: In the study of adaptive evolution, it is important to detect the protein coding sites where natural selection is acting. In general, the ratio of the rate of non-syno...
JOT
2010
13 years 6 months ago
2010
This paper is part 5 in a series of papers about the Discrete Fourier Transform (DFT) and the Inverse Discrete Fourier Transform (IDFT). The focus of this paper is on the spectrog...