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WWW
2007
ACM
14 years 8 months ago
First-order focused crawling
This paper reports a new general framework of focused web crawling based on "relational subgroup discovery". Predicates are used explicitly to represent the relevance cl...
Qingyang Xu, Wanli Zuo
DAGSTUHL
2004
13 years 8 months ago
Knowledge-Based Sampling for Subgroup Discovery
Subgroup discovery aims at finding interesting subsets of a classified example set that deviates from the overall distribution. The search is guided by a so-called utility function...
Martin Scholz
JSYML
2010
55views more  JSYML 2010»
13 years 5 months ago
Groups definable in linear o-minimal structures: the non-compact case
Let M = M, +, <, 0, S be a linear o-minimal expansion of an ordered group, and G = G, ⊕, eG an n-dimensional group definable in M. We show that if G is definably connected w...
Pantelis E. Eleftheriou
IJAC
2007
116views more  IJAC 2007»
13 years 7 months ago
On the Complexity of the Whitehead Minimization Problem
The Whitehead minimization problem consists in finding a minimum size element in the automorphic orbit of a word, a cyclic word or a finitely generated subgroup in a finite rank...
Abdó Roig, Enric Ventura, Pascal Weil
PKC
2004
Springer
95views Cryptology» more  PKC 2004»
14 years 21 days ago
A Nonuniform Algorithm for the Hidden Number Problem in Subgroups
Boneh and Venkatesan have proposed a polynomial time algorithm in a non-uniform model for recovering a ”hidden” element α ∈ IFp, where p is prime, from very short strings of...
Igor Shparlinski, Arne Winterhof