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XIMEP
2004
ACM
88views Database» more  XIMEP 2004»
15 years 12 months ago
XQuery Processing in Natix with an Emphasis on Join Ordering
We give an overview on how XQuery processing works in our native XML database system Natix. After a brief description of the query compiler we focus on the aspect of join ordering...
Norman May, Sven Helmer, Carl-Christian Kanne, Gui...
AIS
2004
Springer
15 years 12 months ago
Using Cell-DEVS for Modeling Complex Cell Spaces
Cell-DEVS is an extension to the DEVS formalism that allows the definition of cellular models. CD++ is a modeling and simulation tool that implements DEVS and Cell-DEVS formalisms....
Javier Ameghino, Gabriel A. Wainer
AUSAI
2004
Springer
15 years 12 months ago
Using Machine Learning Techniques to Combine Forecasting Methods
We present here an original work that uses machine learning techniques to combine time series forecasts. In this proposal, a machine learning technique uses features of the series ...
Ricardo Bastos Cavalcante Prudêncio, Teresa ...
CASDMKM
2004
Springer
157views Data Mining» more  CASDMKM 2004»
15 years 12 months ago
A Novel Hybrid AI System Framework for Crude Oil Price Forecasting
In this study, a novel hybrid AI system framework is developed by means of a systematic integration of artificial neural networks (ANN) and rulebased expert system (RES) with web-b...
Shouyang Wang, Lean Yu, Kin Keung Lai
CDB
2004
Springer
169views Database» more  CDB 2004»
15 years 12 months ago
Semantic Optimization of Preference Queries
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). We present here a nu...
Jan Chomicki