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COMBINATORICS
2002
84views more  COMBINATORICS 2002»
13 years 7 months ago
Compositions of Random Functions on a Finite Set
If we compose sufficiently many random functions on a finite set, then the composite function will be constant. We determine the number of compositions that are needed, on average...
Avinash Dalal, Eric Schmutz
NA
2007
84views more  NA 2007»
13 years 7 months ago
A generalization of Euler's constant
: The purpose of this paper is to evaluate the limit γ(a) of the sequence 1 a + 1 a + 1 + · · · + 1 a + n − 1 − ln a + n − 1 a n∈N , where a ∈ (0, +∞). We give some...
Alina Sîntamarian
IJON
2007
102views more  IJON 2007»
13 years 7 months ago
Methodology for long-term prediction of time series
In this paper, a global methodology for the long-term prediction of time series is proposed. This methodology combines direct prediction strategy and sophisticated input selection...
Antti Sorjamaa, Jin Hao, Nima Reyhani, Yongnan Ji,...
JCO
2010
97views more  JCO 2010»
13 years 6 months ago
Subhypergraph counts in extremal and random hypergraphs and the fractional q-independence
We study the extremal parameter N(n, m, H) which is the largest number of copies of a hypergraph H that can be formed of at most n vertices and m edges. Generalizing previous work...
Andrzej Dudek, Joanna Polcyn, Andrzej Rucinski
VLDB
2006
ACM
171views Database» more  VLDB 2006»
14 years 7 months ago
Grid-partition index: a hybrid method for nearest-neighbor queries in wireless location-based services
Abstract Traditional nearest-neighbor (NN) search is based on two basic indexing approaches: object-based indexing and solution-based indexing. The former is constructed based on t...
Baihua Zheng, Jianliang Xu, Wang-Chien Lee, Dik Lu...