Sciweavers

4047 search results - page 602 / 810
» Some Properties and Some Problems on Set Functors
Sort
View
STOC
2004
ACM
129views Algorithms» more  STOC 2004»
16 years 6 months ago
Sorting and searching in the presence of memory faults (without redundancy)
We investigate the design of algorithms resilient to memory faults, i.e., algorithms that, despite the corruption of some memory values during their execution, are able to produce...
Irene Finocchi, Giuseppe F. Italiano
STOC
2001
ACM
111views Algorithms» more  STOC 2001»
16 years 6 months ago
Optimal outlier removal in high-dimensional
We study the problem of finding an outlier-free subset of a set of points (or a probability distribution) in n-dimensional Euclidean space. As in [BFKV 99], a point x is defined t...
John Dunagan, Santosh Vempala
PODS
2002
ACM
138views Database» more  PODS 2002»
16 years 6 months ago
Fast Algorithms For Hierarchical Range Histogram Construction
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
Sudipto Guha, Nick Koudas, Divesh Srivastava
PODS
2005
ACM
104views Database» more  PODS 2005»
16 years 6 months ago
Views and queries: determinacy and rewriting
We investigate the question of whether a query can be answered using a set V of views. We first define the problem in information-theoretic terms: we say that V determines if V pr...
Luc Segoufin, Victor Vianu
SAC
2009
ACM
16 years 1 months ago
Exploiting weak dependencies in tree-based search
In this work, our objective is to heuristically discover a simplified form of functional dependencies between variables called weak dependencies. Once discovered, these relations...
Alejandro Arbelaez, Youssef Hamadi