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GECCO
2009
Springer
121views Optimization» more  GECCO 2009»
15 years 8 months ago
Using memetic algorithms to improve portfolio performance in static and dynamic trading scenarios
The Portfolio Optimization problem consists of the selection of a group of assets to a long-term fund in order to minimize the risk and maximize the return of the investment. This...
Claus de Castro Aranha, Hitoshi Iba
CIKM
2001
Springer
15 years 8 months ago
Index Filtering and View Materialization in ROLAP Environment
Using materialized view to accelerate OLAP queries is one of the most common methods used in ROLAP systems. However, high storage and computation cost make this method very diffic...
Shi Guang Qiu, Tok Wang Ling
ICCBR
2001
Springer
15 years 8 months ago
A Fuzzy-Rough Approach for Case Base Maintenance
Abstract. This paper proposes a fuzzy-rough method of maintaining CaseBased Reasoning (CBR) systems. The methodology is mainly based on the idea that a large case library can be tr...
Guoqing Cao, Simon C. K. Shiu, Xizhao Wang
TOOLS
2000
IEEE
15 years 8 months ago
Design and Implementation of CORBA-Based Subscription Server
The standard CORBA operation invocation model supports synchronous, one-way, and deferred synchronous interactions between clients and servers. However, this model is too restrict...
R. Maheshwari, R. Fatoohi
SSDBM
1999
IEEE
108views Database» more  SSDBM 1999»
15 years 8 months ago
Supporting Imprecision in Multidimensional Databases Using Granularities
On-Line Analytical Processing (OLAP) technologies are being used widely, but the lack of effective means of handling data imprecision, which occurs when exact values are not known...
Torben Bach Pedersen, Christian S. Jensen, Curtis ...