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COMPGEOM
2011
ACM
12 years 9 months ago
Minors in random and expanding hypergraphs
We introduce a new notion of minors for simplicial complexes (hypergraphs), so-called homological minors. Our motivation is to propose a general approach to attack certain extrema...
Uli Wagner
STOC
1990
ACM
135views Algorithms» more  STOC 1990»
13 years 9 months ago
A Separator Theorem for Graphs with an Excluded Minor and its Applications
ions (Extended Abstract) Noga Alon Paul Seymour Robin Thomas Let G be an n-vertex graph with nonnegative weights whose sum is 1 assigned to its vertices, and with no minor isomorp...
Noga Alon, Paul D. Seymour, Robin Thomas
STOC
2009
ACM
171views Algorithms» more  STOC 2009»
14 years 6 months ago
On the geometry of graphs with a forbidden minor
We study the topological simplification of graphs via random embeddings, leading ultimately to a reduction of the Gupta-Newman-Rabinovich-Sinclair (GNRS) L1 embedding conjecture t...
James R. Lee, Anastasios Sidiropoulos
ICA
2010
Springer
13 years 6 months ago
Adaptive Underdetermined ICA for Handling an Unknown Number of Sources
Independent Component Analysis is the best known method for solving blind source separation problems. In general, the number of sources must be known in advance. In many cases, pre...
Andreas Sandmair, Alam Zaib, Fernando Puente Le&oa...
CRYPTO
2006
Springer
149views Cryptology» more  CRYPTO 2006»
13 years 9 months ago
On Combining Privacy with Guaranteed Output Delivery in Secure Multiparty Computation
In the setting of multiparty computation, a set of parties wish to jointly compute a function of their inputs, while preserving security in the case that some subset of them are co...
Yuval Ishai, Eyal Kushilevitz, Yehuda Lindell, Ere...