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AAAI
2012
13 years 9 months ago
Discovering Spammers in Social Networks
As the popularity of the social media increases, as evidenced in Twitter, Facebook and China’s Renren, spamming activities also picked up in numbers and variety. On social netwo...
Yin Zhu, Xiao Wang, ErHeng Zhong, Nathan Nan Liu, ...
APPROX
2005
Springer
79views Algorithms» more  APPROX 2005»
16 years 23 days ago
Reconstructive Dispersers and Hitting Set Generators
Abstract. We give a generic construction of an optimal hitting set generator (HSG) from any good “reconstructive” disperser. Past constructions of optimal HSGs have been based ...
Christopher Umans
DCC
2008
IEEE
16 years 6 months ago
Distorting symmetric designs
A simple replacement approach is used to construct new symmetric and affine designs from projective or affine spaces. This is used to construct symmetric designs with a given autom...
Ulrich Dempwolff, William M. Kantor
DCC
2005
IEEE
16 years 6 months ago
On the Existence of Large Sets of t-designs of Prime Sizes
In this paper, we employ the known recursive construction methods to obtain some new existence results for large sets of t-designs of prime sizes. We also present a new recursive ...
Behruz Tayfeh-Rezaie
CORR
2002
Springer
128views Education» more  CORR 2002»
15 years 7 months ago
The Deductive Database System LDL++
This paper describes the LDL++ system and the research advances that have enabled its design and development. We begin by discussing the new nonmonotonic and nondeterministic cons...
Faiz Arni, KayLiang Ong, Shalom Tsur, Haixun Wang,...