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SEMWEB
2009
Springer
16 years 1 months ago
Task Representation and Retrieval in an Ontology-Guided Modelling System
A modelling procedure consists of a sequence of modelling tasks. With the increasing size of models during the development, the relations among modelling objects and their correspo...
Yuan Ren, Jens Lemcke, Andreas Friesen, Tirdad Rah...
EDBT
2010
ACM
392views Database» more  EDBT 2010»
16 years 1 months ago
Position list word aligned hybrid: optimizing space and performance for compressed bitmaps
Compressed bitmap indexes are increasingly used for efficiently querying very large and complex databases. The Word Aligned Hybrid (WAH) bitmap compression scheme is commonly rec...
François Deliège, Torben Bach Peders...
AINA
2008
IEEE
16 years 1 months ago
Performance Optimization of Temporal Reasoning for Grid Workflows Using Relaxed Region Analysis
With quick evolution of grid technologies and increasing complexity of e-Science applications, reasoning temporal properties of grid workflows to ensure reliability and trustworth...
Ke Xu, Junwei Cao, Lianchen Liu, Cheng Wu
CCGRID
2008
IEEE
16 years 1 months ago
An Autonomic Workflow Management System for Global Grids
Workflow Management System is generally utilized to define, manage and execute workflow applications on Grid resources. However, the increasing scale complexity, heterogeneity and...
Mustafizur Rahman 0003, Rajkumar Buyya
CEC
2008
IEEE
16 years 1 months ago
Real-time evolution of an embedded controller for an autonomous helicopter
— In this paper we evolve the parameters of a proportional, integral, and derivative (PID) controller for an unstable, complex and nonlinear system. The individuals of the applie...
Benjamin N. Passow, Mario A. Góngora, S. Co...