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SIGGRAPH
1994
ACM
15 years 3 months ago
A fast shadow algorithm for area light sources using backprojection
The fast identification of shadow regions due to area light sources is necessary for realistic rendering and for discontinuity meshing for global illumination. A new shadow-determ...
George Drettakis, Eugene Fiume
SIGMOD
1994
ACM
91views Database» more  SIGMOD 1994»
15 years 3 months ago
Estimating Page Fetches for Index Scans with Finite LRU Buffers
We describe an algorithm for estimating the number of page fetches for a partial or complete scan of a B-tree index. The algorithm obtains estimates for the number of page fetches ...
Arun N. Swami, K. Bernhard Schiefer
DOOD
1989
Springer
146views Database» more  DOOD 1989»
15 years 3 months ago
The Object-Oriented Database System Manifesto
This paper attempts to de ne an object-oriented database system. It describes the main features and characteristics that a system must have to qualify as an objectoriented databas...
Malcolm P. Atkinson, François Bancilhon, Da...
ESA
2007
Springer
105views Algorithms» more  ESA 2007»
15 years 3 months ago
Finding Mobile Data: Efficiency vs. Location Inaccuracy
A token is hidden in one out of n boxes following some known probability distribution and then all the boxes are locked. The goal of a searcher is to find the token in at most D n...
Amotz Bar-Noy, Joanna Klukowska
CAISE
2006
Springer
15 years 3 months ago
A Tool for Semi-Automated Semantic Schema Mapping: Design and Implementation
Recently, schema mapping has found considerable interest in both research and practice. Determining matching components of database or XML schemas is needed in many applications, e...
Dimitris Manakanatas, Dimitris Plexousakis