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» The Structure of Factor Oracles
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PODS
2005
ACM
151views Database» more  PODS 2005»
16 years 2 months ago
Estimating arbitrary subset sums with few probes
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
Noga Alon, Nick G. Duffield, Carsten Lund, Mikkel ...
EDBT
2006
ACM
191views Database» more  EDBT 2006»
16 years 2 months ago
Distributed Spatial Clustering in Sensor Networks
Abstract. Sensor networks monitor physical phenomena over large geographic regions. Scientists can gain valuable insight into these phenomena, if they understand the underlying dat...
Anand Meka, Ambuj K. Singh
ICFP
2008
ACM
16 years 1 months ago
Efficient nondestructive equality checking for trees and graphs
The Revised6 Report on Scheme requires its generic equivalence predicate, equal?, to terminate even on cyclic inputs. While the terminating equal? can be implemented via a DFA-equ...
Michael D. Adams, R. Kent Dybvig
ICFP
2005
ACM
16 years 1 months ago
Type inference, principal typings, and let-polymorphism for first-class mixin modules
module is a programming abstraction that simultaneously generalizes -abstractions, records, and mutually recursive definitions. Although various mixin module type systems have bee...
Henning Makholm, J. B. Wells
MOBIHOC
2008
ACM
16 years 1 months ago
Using persistent homology to recover spatial information from encounter traces
In order to better understand human and animal mobility and its potential effects on Mobile Ad-Hoc networks and Delay-Tolerant Networks, many researchers have conducted experiment...
Brenton D. Walker