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SIGMOD
2000
ACM
141views Database» more  SIGMOD 2000»
15 years 10 months ago
Counting, Enumerating, and Sampling of Execution Plans in a Cost-Based Query Optimizer
Testing an SQL database system by running large sets of deterministic or stochastic SQL statements is common practice in commercial database development. However, code defects oft...
Florian Waas, César A. Galindo-Legaria
MSS
1993
IEEE
62views Hardware» more  MSS 1993»
15 years 10 months ago
Striped Tape Arrays
A growing number of applications require high capacity, high throughput tertiary storage systems 1 2 . We are investigating how data striping ideas apply to arrays of magnetic tap...
Ann L. Drapeau, Randy H. Katz
ICDCS
1995
IEEE
15 years 10 months ago
A Competitive Analysis for Retransmission Timeout
Protocols that provide reliable communicationon top of a network that can lose packets rely on periodically retransmitting packets. The choice of retransmission timeout critically...
Shlomi Dolev, Michael Kate, Jennifer L. Welch
IJCAI
2007
15 years 7 months ago
Computation of Initial Modes for K-modes Clustering Algorithm Using Evidence Accumulation
Clustering accuracy of partitional clustering algorithm for categorical data primarily depends upon the choice of initial data points (modes) to instigate the clustering process. ...
Shehroz S. Khan, Shri Kant
AIPS
2009
15 years 7 months ago
Enhancing the Context-Enhanced Additive Heuristic with Precedence Constraints
Recently, Helmert and Geffner proposed the context-enhanced additive heuristic, where fact costs are evaluated relative to context states that arise from achieving first a pivot c...
Dunbo Cai, Jörg Hoffmann, Malte Helmert