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» A Framework for Automating Physical Database Design
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SIGMOD
2002
ACM
246views Database» more  SIGMOD 2002»
14 years 7 months ago
Hierarchical subspace sampling: a unified framework for high dimensional data reduction, selectivity estimation and nearest neig
With the increased abilities for automated data collection made possible by modern technology, the typical sizes of data collections have continued to grow in recent years. In suc...
Charu C. Aggarwal
GIS
2006
ACM
14 years 8 months ago
Query optimizer for spatial join operations
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...
Cirano Iochpe, João Luiz Dihl Comba, Miguel...
VLDB
2002
ACM
193views Database» more  VLDB 2002»
13 years 7 months ago
REFEREE: An Open Framework for Practical Testing of Recommender Systems using ResearchIndex
Automated recommendation (e.g., personalized product recommendation on an ecommerce web site) is an increasingly valuable service associated with many databases--typically online ...
Dan Cosley, Steve Lawrence, David M. Pennock
SC
2009
ACM
14 years 2 days ago
Plasma fusion code coupling using scalable I/O services and scientific workflows
In order to understand the complex physics of mother nature, physicist often use many approximations to understand one area of physics and then write a simulation to reduce these ...
Norbert Podhorszki, Scott Klasky, Qing Liu, Cipria...
GIS
2008
ACM
14 years 8 months ago
A location aware role and attribute based access control system
In this paper, we follow the role-based access control (RBAC) approach and extend it to provide for the dynamic association of roles with users. In our framework, privileges assoc...
Isabel F. Cruz, Rigel Gjomemo, Benjamin Lin, Mirko...