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GIS
1999
ACM
15 years 11 months ago
Improved Bulk-Loading Algorithms for Quadtrees
Spatial indexes, such as the PMR quadtree, are important in spatial databases for efficient execution of queries involving spatial constraints, especially when the queries involv...
Gísli R. Hjaltason, Hanan Samet
OOPSLA
1999
Springer
15 years 11 months ago
Removing Unnecessary Synchronization in Java
Java programs perform many synchronization operations on data structures. Some of these synchronizations are unnecessary; in particular, if an object is reachable only by a single ...
Jeff Bogda, Urs Hölzle
AUSAI
1998
Springer
15 years 11 months ago
The Problem of Missing Values in Decision Tree Grafting
Decision tree grafting adds nodes to inferred decision trees. Previous research has demonstrated that appropriate grafting techniques can improve predictive accuracy across a wide ...
Geoffrey I. Webb
177
Voted
CARDIS
1998
Springer
109views Hardware» more  CARDIS 1998»
15 years 11 months ago
The Vault, an Architecture for Smartcards to Gain Infinite Memory
Smartcard chips vendors have always done their best to embed more memory inside cards. These efforts are driven to allow their customers smartcard manufacturers - to mask more soft...
Patrick Biget
VISUALIZATION
1997
IEEE
15 years 11 months ago
The motion map: efficient computation of steady flow animations
This paper presents a new approach for animating 2D steady flow fields. It is based on an original data structure called the Motion Map. The Motion Map contains not only a dense...
Bruno Jobard, Wilfrid Lefer