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STOC
2007
ACM
83views Algorithms» more  STOC 2007»
15 years 9 months ago
Lattices that admit logarithmic worst-case to average-case connection factors
We demonstrate an average-case problem that is as hard as finding (n)-approximate shortest vectors in certain n-dimensional lattices in the worst case, where (n) = O( log n). The...
Chris Peikert, Alon Rosen
SIGMOD
2008
ACM
203views Database» more  SIGMOD 2008»
15 years 9 months ago
Querying continuous functions in a database system
Many scientific, financial, data mining and sensor network applications need to work with continuous, rather than discrete data e.g., temperature as a function of location, or sto...
Arvind Thiagarajan, Samuel Madden
KES
2008
Springer
14 years 9 months ago
Driven by Compression Progress
I argue that data becomes temporarily interesting by itself to some self-improving, but computationally limited, subjective observer once he learns to predict or compress the data...
Jürgen Schmidhuber
TC
2008
14 years 9 months ago
Cryptanalysis with COPACOBANA
Cryptanalysis of ciphers usually involves massive computations. The security parameters of cryptographic algorithms are commonly chosen so that attacks are infeasible with availabl...
Tim Güneysu, Timo Kasper, Martin Novotn&yacut...
CONCURRENCY
2007
75views more  CONCURRENCY 2007»
14 years 9 months ago
A distributed packed storage for large dense parallel in-core calculations
We propose in this paper a distributed packed storage format that exploits the symmetry or the triangular structure of a dense matrix. This format stores only half of the matrix w...
Marc Baboulin, Luc Giraud, Serge Gratton, Julien L...