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FOCS
2006
IEEE
15 years 11 months ago
Heat Flow and a Faster Algorithm to Compute the Surface Area of a Convex Body
We draw on the observation that the amount of heat diffusing outside of a heated body in a short period of time is proportional to its surface area, to design a simple algorithm f...
Mikhail Belkin, Hariharan Narayanan, Partha Niyogi
TALG
2010
101views more  TALG 2010»
15 years 3 months ago
Reasoning about online algorithms with weighted automata
We describe an automata-theoretic approach for the competitive analysis of online algorithms. Our approach is based on weighted automata, which assign to each input word a cost in...
Benjamin Aminof, Orna Kupferman, Robby Lampert
PG
2007
IEEE
15 years 11 months ago
Papercraft Models using Generalized Cylinders
We introduce an algorithm for approximating a 2manifold 3D mesh by a set of developable surfaces. Each developable surface is a generalized cylinder represented as a strip of tria...
Fady Massarwi, Craig Gotsman, Gershon Elber
SIGMOD
2004
ACM
199views Database» more  SIGMOD 2004»
16 years 5 months ago
Approximate XML Query Answers
The rapid adoption of XML as the standard for data representation and exchange foreshadows a massive increase in the amounts of XML data collected, maintained, and queried over th...
Neoklis Polyzotis, Minos N. Garofalakis, Yannis E....
SMA
2009
ACM
130views Solid Modeling» more  SMA 2009»
15 years 11 months ago
A symbolic-numerical envelope algorithm using quadratic MOS patches
In this paper, we describe an algorithm for generating an exact rational envelope of a two-parameter family of spheres given by a quadratic patch in R3,1 , which is considered as ...
Bohumír Bastl, Jirí Kosinka, Mirosla...