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RT
2000
Springer
15 years 10 months ago
Direct Ray Tracing of Displacement Mapped Triangles
We present an algorithm for ray tracing displacement maps that requires no additional storage over the base model. Displacement maps are rarely used in ray tracing due to the cost...
Brian E. Smits, Peter Shirley, Michael M. Stark
COMPGEOM
1994
ACM
15 years 10 months ago
Spheres, Molecules, and Hidden Surface Removal
We devise techniques to manipulate a collection of loosely interpenetrating spheres in threedimensional space. Our study is motivated by the representation and manipulation of mol...
Dan Halperin, Mark H. Overmars
LREC
2008
117views Education» more  LREC 2008»
15 years 8 months ago
A Suite to Compile and Analyze an LSP Corpus
This paper presents a series of tools for the extraction of specialized corpora from the web and its subsequent analysis mainly with statistical techniques. It is an integrated sy...
Rogelio Nazar, Jorge Vivaldi, Teresa Cabré
ICML
2010
IEEE
15 years 8 months ago
Supervised Aggregation of Classifiers using Artificial Prediction Markets
Prediction markets are used in real life to predict outcomes of interest such as presidential elections. In this work we introduce a mathematical theory for Artificial Prediction ...
Nathan Lay, Adrian Barbu
CLEIEJ
2008
72views more  CLEIEJ 2008»
15 years 7 months ago
Measuring Contribution of HTML Features in Web Document Clustering
Documents in HTML format have many features to analyze, from the terms in special sections to the phrases that appear in the whole document. However, it is important to decide whi...
Esteban Meneses, Oldemar Rodríguez-Rojas