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» Bagging with Adaptive Costs
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AGILEDC
2005
IEEE
14 years 1 months ago
Costs of Compliance: Agile in an Inelastic Organization
Doing agile development in a relatively inelastic environment, where policies and procedures are virtually unchangeable, creates an impedance mismatch between the agile team and i...
John J. Cunningham
CDC
2010
IEEE
111views Control Systems» more  CDC 2010»
13 years 2 months ago
Retrospective cost adaptive control for nonminimum-phase discrete-time systems, part 1: The ideal controller and error system
We present a direct adaptive controller for discrete-time (and thus sampled-data) systems that are possibly nonminimum phase. The adaptive control algorithm requires limited model ...
Jesse B. Hoagg, Dennis S. Bernstein
EDBT
2010
ACM
151views Database» more  EDBT 2010»
14 years 23 days ago
Warm cache costing: a feedback optimization technique for buffer pool aware costing
Most modern RDBMS depend on the query processing optimizer’s cost model to choose the best execution plan for a given query. Since the physical IO (PIO) is a costly operation to...
H. S. Ramanujam, Edwin Seputis
ICDE
2007
IEEE
98views Database» more  ICDE 2007»
14 years 1 months ago
Towards Adaptive Costing of Database Access Methods
Most database query optimizers use cost models to identify good query execution plans. Inaccuracies in the cost models can cause query optimizers to select poor plans. In this pap...
Ye Qin, Kenneth Salem, Anil K. Goel
MIDDLEWARE
2009
Springer
14 years 2 months ago
A Cost-Sensitive Adaptation Engine for Server Consolidation of Multitier Applications
Abstract. Virtualization-based server consolidation is an important technique for cost and energy reductions in data center environments and a key enabler of cloud computing. Howev...
Gueyoung Jung, Kaustubh R. Joshi, Matti A. Hiltune...