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ISBI
2008
IEEE
14 years 6 months ago
An information-based clustering approach for fMRI activation detection
Most clustering algorithms in fMRI analysis implicitly require some nontrivial assumption on data structure. Due to arbitrary distribution of fMRI time series in the temporal doma...
Lijun Bai, Wei Qin, Jimin Liang, Jie Tian
VISUALIZATION
2005
IEEE
13 years 11 months ago
Rendering Tetrahedral Meshes with Higher-Order Attenuation Functions for Digital Radiograph Reconstruction
This paper presents a novel method for computing simulated x-ray images, or DRRs (digitally reconstructed radiographs), of tetrahedral meshes with higher-order attenuation functio...
Ofri Sadowsky, Jonathan D. Cohen, Russell H. Taylo...
VISUALIZATION
2002
IEEE
13 years 10 months ago
Rendering The First Star In The Universe - A Case Study
For quantitative examination of phenomena that simultaneously occur on very different spatial and temporal scales, adaptive hierarchical schemes are required. A special numerical ...
Ralf Kähler, Donna Cox, Robert Patterson, Stu...
SIGMOD
2004
ACM
144views Database» more  SIGMOD 2004»
14 years 6 months ago
Diamond in the Rough: Finding Hierarchical Heavy Hitters in Multi-Dimensional Data
Data items archived in data warehouses or those that arrive online as streams typically have attributes which take values from multiple hierarchies (e.g., time and geographic loca...
Graham Cormode, Flip Korn, S. Muthukrishnan, Dives...
SMALLTALK
2007
Springer
13 years 12 months ago
Transactional memory for smalltalk
Concurrency control in Smalltalk is based on locks and is therefore notoriously difficult to use. Even though some implementations provide high-level constructs, these add complexi...
Lukas Renggli, Oscar Nierstrasz