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ALGORITHMICA
2006
94views more  ALGORITHMICA 2006»
13 years 5 months ago
Efficient Algorithms for k Maximum Sums
We study the problem of computing the k maximum sum subsequences. Given a sequence of real numbers x1, x2, . . . , xn and an integer parameter k, 1 k 1 2 n(n - 1), the problem in...
Fredrik Bengtsson, Jingsen Chen
ALGORITHMICA
2006
174views more  ALGORITHMICA 2006»
13 years 5 months ago
Profiles of Random Trees: Limit Theorems for Random Recursive Trees and Binary Search Trees
We prove convergence in distribution for the profile (the number of nodes at each level), normalized by its mean, of random recursive trees when the limit ratio of the level and ...
Michael Fuchs, Hsien-Kuei Hwang, Ralph Neininger
ALGORITHMICA
2006
149views more  ALGORITHMICA 2006»
13 years 5 months ago
Partial Lifting and the Elliptic Curve Discrete Logarithm Problem
It has been suggested that a major obstacle in finding an index calculus attack on the elliptic curve discrete logarithm problem lies in the difficulty of lifting points from ellip...
Qi Cheng, Ming-Deh A. Huang
ALGORITHMICA
2006
90views more  ALGORITHMICA 2006»
13 years 5 months ago
Destruction of Very Simple Trees
We consider the total cost of cutting down a random rooted tree chosen from a family of so-called very simple trees (which include ordered trees, d-ary trees, and Cayley trees); th...
James Allen Fill, Nevin Kapur, Alois Panholzer
ALGORITHMICA
2006
109views more  ALGORITHMICA 2006»
13 years 5 months ago
Computing All Immobilizing Grasps of a Simple Polygon with Few Contacts
: We study the output-sensitive computations of all the combinations of the edges and vertices of a simple polygon P that allow a form closure grasp with less than four point conta...
Jae-Sook Cheong, Herman J. Haverkort, A. Frank van...