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TCC
2004
Springer
164views Cryptology» more  TCC 2004»
14 years 3 months ago
Hierarchical Threshold Secret Sharing
We consider the problem of threshold secret sharing in groups with hierarchical structure. In such settings, the secret is shared among a group of participants that is partitioned ...
Tamir Tassa
DIALM
2003
ACM
139views Algorithms» more  DIALM 2003»
14 years 3 months ago
dBBlue: low diameter and self-routing bluetooth scatternet
This paper addresses the problem of scatternet formation for singlehop Bluetooth based ad hoc networks, with minimal communication overhead. We adopt the well-known structure de B...
Wen-Zhan Song, Xiang-Yang Li, Yu Wang 0003, Weizha...
STOC
2009
ACM
96views Algorithms» more  STOC 2009»
14 years 10 months ago
MaxMin allocation via degree lower-bounded arborescences
We consider the problem of MaxMin allocation of indivisible goods. There are m items to be distributed among n players. Each player i has a nonnegative valuation pij for an item j...
MohammadHossein Bateni, Moses Charikar, Venkatesan...
STOC
2009
ACM
160views Algorithms» more  STOC 2009»
14 years 10 months ago
CSP gaps and reductions in the lasserre hierarchy
We study integrality gaps for SDP relaxations of constraint satisfaction problems, in the hierarchy of SDPs defined by Lasserre. Schoenebeck [25] recently showed the first integra...
Madhur Tulsiani
SIGMOD
2009
ACM
137views Database» more  SIGMOD 2009»
14 years 10 months ago
Robust and efficient algorithms for rank join evaluation
In the rank join problem we are given a relational join R1 1 R2 and a function that assigns numeric scores to the join tuples, and the goal is to return the tuples with the highes...
Jonathan Finger, Neoklis Polyzotis