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FOCS
2007
IEEE
14 years 3 months ago
On the Hardness and Smoothed Complexity of Quasi-Concave Minimization
In this paper, we resolve the smoothed and approximative complexity of low-rank quasi-concave minimization, providing both upper and lower bounds. As an upper bound, we provide th...
Jonathan A. Kelner, Evdokia Nikolova
IDEAS
2007
IEEE
128views Database» more  IDEAS 2007»
14 years 3 months ago
Streaming Random Forests
Many recent applications deal with data streams, conceptually endless sequences of data records, often arriving at high flow rates. Standard data-mining techniques typically assu...
Hanady Abdulsalam, David B. Skillicorn, Patrick Ma...
RECOMB
2008
Springer
14 years 9 months ago
Algorithms for Exploring the Space of Gene Tree/Species Tree Reconciliations
We describe algorithms to explore the space of all possible reconciliations between a gene tree and a species tree. We propose an algorithm for generating a random reconciliation, ...
Jean-Philippe Doyon, Cedric Chauve, Sylvie Hamel
VISUALIZATION
1998
IEEE
14 years 28 days ago
Isosurface extraction in time-varying fields using a temporal hierarchical index tree
Many high-performance isosurface extraction algorithms have been proposed in the past several years as a result of intensive research efforts. When applying these algorithms to la...
Han-Wei Shen
GPEM
2000
103views more  GPEM 2000»
13 years 8 months ago
Size Fair and Homologous Tree Crossovers for Tree Genetic Programming
Abstract. Size fair and homologous crossover genetic operators for tree based genetic programming are described and tested. Both produce considerably reduced increases in program s...
William B. Langdon