242 search results - page 7 / 49 » Approximate substring selectivity estimation |
SIGMOD
1994
ACM
13 years 11 months ago
1994
ACM
In this paper, we propose a novel approach for estimating the record selectivities of database queries. The real attribute value distribution is adaptively approximated by a curve...
SIGMOD
1998
ACM
13 years 11 months ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
GLOBECOM
2008
IEEE
14 years 1 months ago
2008
IEEE
— In this paper, we propose a low-complexity iterative joint channel estimation, detection and decoding technique for doubly selective channels. The key is a segment-by-segment f...
ICANN
2005
Springer
14 years 26 days ago
2005
Springer
This paper presents a new method for the selection of the two hyperparameters of Least Squares Support Vector Machine (LS-SVM) approximators with Gaussian Kernels. The two hyperpar...
NIPS
2007
13 years 8 months ago
2007
The peristimulus time histogram (PSTH) and its more continuous cousin, the spike density function (SDF) are staples in the analytic toolkit of neurophysiologists. The former is us...