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JACM
2010
208views more  JACM 2010»
14 years 8 months ago
The nested chinese restaurant process and bayesian nonparametric inference of topic hierarchies
clustering of documents according to sharing of topics at multiple levels of abstraction. Given a corpus of documents, a posterior inference algorithm finds an approximation to a ...
David M. Blei, Thomas L. Griffiths, Michael I. Jor...
WABI
2010
Springer
141views Bioinformatics» more  WABI 2010»
14 years 8 months ago
An Experimental Study of Quartets MaxCut and Other Supertree Methods
Although many supertree methods have been developed in the last few decades, none has been shown to produce more accurate trees than the popular Matrix Representation with Parsimon...
M. Shel Swenson, Rahul Suri, C. Randal Linder, Tan...
AUTOMATICA
2010
106views more  AUTOMATICA 2010»
14 years 8 months ago
Fault detection for discrete event systems using Petri nets with unobservable transitions
In this paper we present an efficient approach for the fault detection of discrete event systems using Petri nets. We assume that some of the transitions of the net are unobservabl...
Maria Paola Cabasino, Alessandro Giua, Carla Seatz...
ISQED
2010
IEEE
137views Hardware» more  ISQED 2010»
14 years 7 months ago
Analysis of power supply induced jitter in actively de-skewed multi-core systems
This paper studies multi-core clock distribution using active deskewing methods. We propose an efficient methodology that uses Verilog-A to model PLLs, clock trees and power suppl...
Derek Chan, Matthew R. Guthaus
CGF
2011
14 years 1 months ago
RTSAH Traversal Order for Occlusion Rays
We accelerate the finding of occluders in tree based acceleration structures, such as a packetized BVH and a single ray kd-tree, by deriving the ray termination surface area heur...
Thiago Ize, Charles D. Hansen