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TOG
2002
116views more  TOG 2002»
15 years 6 months ago
Linear combination of transformations
Geometric transformations are most commonly represented as square matrices in computer graphics. Following simple geometric arguments we derive a natural and geometrically meaning...
Marc Alexa
CDC
2010
IEEE
196views Control Systems» more  CDC 2010»
15 years 1 months ago
Convergence and convergence rate of stochastic gradient search in the case of multiple and non-isolated extrema
The asymptotic behavior of stochastic gradient algorithms is studied. Relying on some results of differential geometry (Lojasiewicz gradient inequality), the almost sure pointconve...
Vladislav B. Tadic
SPAA
1996
ACM
15 years 10 months ago
BSP vs LogP
A quantitative comparison of the BSP and LogP models of parallel computation is developed. We concentrate on a variant of LogP that disallows the so-called stalling behavior, alth...
Gianfranco Bilardi, Kieran T. Herley, Andrea Pietr...
VLDB
1994
ACM
115views Database» more  VLDB 1994»
15 years 10 months ago
Database Graph Views: A Practical Model to Manage Persistent Graphs
Advanced technical applications like routing systems or electrical network managementsystems introduce the need for complex manipulations of large size graphs. Efficiently support...
Alejandro Gutiérrez, Philippe Pucheral, Her...
SIAMSC
2008
191views more  SIAMSC 2008»
15 years 6 months ago
ORBIT: Optimization by Radial Basis Function Interpolation in Trust-Regions
Abstract. We present a new derivative-free algorithm, ORBIT, for unconstrained local optimization of computationally expensive functions. A trust-region framework using interpolati...
Stefan M. Wild, Rommel G. Regis, Christine A. Shoe...