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AINA
2007
IEEE
15 years 6 months ago
A Distributed and Dynamic Data Gathering Protocol for Sensor Networks
In this paper we propose a distributed, self organizing, robust and energy efficient data gathering algorithm for sensor networks operating in environments where all the sensor n...
Hüseyin Özgür Tan, Ibrahim Korpeogl...
COMGEO
2007
ACM
14 years 12 months ago
Graph drawings with few slopes
The slope-number of a graph G is the minimum number of distinct edge slopes in a straight-line drawing of G in the plane. We prove that for Δ 5 and all large n, there is a Δ-reg...
Vida Dujmovic, Matthew Suderman, David R. Wood
COMPGEOM
2010
ACM
15 years 5 months ago
Finding shortest non-trivial cycles in directed graphs on surfaces
Let D be a weighted directed graph cellularly embedded in a surface of genus g, orientable or not, possibly with boundary. We describe algorithms to compute a shortest non-contrac...
Sergio Cabello, Éric Colin de Verdiè...
COMGEO
2007
ACM
14 years 12 months ago
An intersection-sensitive algorithm for snap rounding
Snap rounding is a method for converting arbitrary-precision arrangements of segments into fixed-precision representation. We present an algorithm for snap rounding with running ...
Mark de Berg, Dan Halperin, Mark H. Overmars
CLUSTER
2002
IEEE
15 years 4 months ago
Mixed Mode Matrix Multiplication
In modern clustering environments where the memory hierarchy has many layers (distributed memory, shared memory layer, cache,  ¡ ¢  ), an important question is how to fully u...
Meng-Shiou Wu, Srinivas Aluru, Ricky A. Kendall