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AMAI
2007
Springer
15 years 7 months ago
Distance semantics for database repair
Abstract In many scenarios, a database instance violates a given set of integrity constraints. In such cases, it is often required to repair the database, that is, to restore its c...
Ofer Arieli, Marc Denecker, Maurice Bruynooghe
COMCOM
2008
99views more  COMCOM 2008»
15 years 7 months ago
Performance implications of fluctuating server capacity
In this paper, we consider a variant of an M/M/c/c loss system with fluctuating server capacity. Given a set of primary inputs, such as arrival rate, service rate, and capacity fl...
Jingxiang Luo, Carey L. Williamson
CORR
2008
Springer
84views Education» more  CORR 2008»
15 years 7 months ago
Message-Passing Decoding of Lattices Using Gaussian Mixtures
A belief-propagation decoder for low-density lattice codes, which represents messages explicitly as a mixture of Gaussians functions, is given. In order to prevent the mixture elem...
Brian M. Kurkoski, Justin Dauwels
152
Voted
DAM
2008
123views more  DAM 2008»
15 years 7 months ago
Ultrametrics, Banach's fixed point theorem and the Riordan group
We interpret the reciprocation process in K[[x]] as a fixed point problem related to contractive functions for certain adequate ultrametric spaces. This allows us to give a dynamic...
Ana Luzón, Manuel A. Morón
CSDA
2007
131views more  CSDA 2007»
15 years 7 months ago
Bivariate density estimation using BV regularisation
In this paper we study the problem of bivariate density estimation. The aim is to find a density function with the smallest number of local extreme values which is adequate with ...
Andreas Obereder, Otmar Scherzer, Arne Kovac