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» Structure in the Space of Value Functions
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SSDBM
2003
IEEE
95views Database» more  SSDBM 2003»
15 years 11 months ago
A Quad-Tree Based Multiresolution Approach for Two-dimensional Summary Data
In many application contexts, like statistical databases, scientific databases, query optimizers, OLAP, and so on, data are often summarized into synopses of aggregate values. Su...
Francesco Buccafurri, Filippo Furfaro, Domenico Sa...
VISUALIZATION
1999
IEEE
15 years 10 months ago
Hue-Balls and Lit-Tensors for Direct Volume Rendering of Diffusion Tensor Fields
With the development of magnetic resonance imaging techniques for acquiring diffusion tensor data from biological tissue, visualization of tensor data has become a new research fo...
Gordon L. Kindlmann, David M. Weinstein
ICSE
1999
IEEE-ACM
15 years 10 months ago
Generalizing Perspective-Based Inspection to Handle Object-Oriented Development Artifacts
The value of software inspection for uncovering defects early in the development lifecycle has been well documented. Of the various types of inspection methods published to date, ...
Oliver Laitenberger, Colin Atkinson
VLDB
1994
ACM
129views Database» more  VLDB 1994»
15 years 10 months ago
Hilbert R-tree: An Improved R-tree using Fractals
We propose a new R-tree structure that outperforms all the older ones. The heart of the idea is to facilitate the deferred splitting approach in R-trees. This is done by proposing...
Ibrahim Kamel, Christos Faloutsos
PODC
2010
ACM
15 years 9 months ago
A modular approach to shared-memory consensus, with applications to the probabilistic-write model
We define two new classes of shared-memory objects: ratifiers, which detect agreement, and conciliators, which ensure agreement with some probability. We show that consensus can...
James Aspnes