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ISIPTA
2005
IEEE
165views Mathematics» more  ISIPTA 2005»
16 years 10 days ago
Electric Company Portfolio Optimization Under Interval Stochastic Dominance Constraints
This paper addresses the problem of market risk management for a company in the electricity industry. When dealing with corporate volumetric exposure, there is a need for a method...
Daniel Berleant, Mathieu Dancre, Jean-Philippe Arg...
VLDB
2004
ACM
102views Database» more  VLDB 2004»
16 years 3 days ago
PIVOT and UNPIVOT: Optimization and Execution Strategies in an RDBMS
PIVOT and UNPIVOT, two operators on tabular data that exchange rows and columns, enable data transformations useful in data modeling, data analysis, and data presentation. They ca...
Conor Cunningham, Goetz Graefe, César A. Ga...
VLDB
2004
ACM
97views Database» more  VLDB 2004»
16 years 3 days ago
CHICAGO: A Test and Evaluation Environment for Coarse-Grained Optimization
Relational OLAP tools and other database applications generate sequences of SQL statements that are sent to the database server as result of a single information request issued by...
Tobias Kraft, Holger Schwarz
CGI
1999
IEEE
15 years 11 months ago
Evolutionary Optimization of Functionally Defined Shapes: Case Study of Natural Optical Objects
This paper focuses on an approach to modeling shapes through the use of evolutionary optimization or genetic algorithms for functionally represented geometric objects. This repres...
Vladimir V. Savchenko, Alexander A. Pasko
ASPDAC
1999
ACM
60views Hardware» more  ASPDAC 1999»
15 years 11 months ago
Timing Optimization of Logic Network Using Gate Duplication
We present a timing optimization algorithm based on the concept of gate duplication on the technologydecomposed network. We first examine the relationship between gate duplication...
Chun-hong Chen, Chi-Ying Tsui