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ICDE
1992
IEEE
126views Database» more  ICDE 1992»
14 years 1 months ago
Logical Database Design with Inclusion Dependencies
Contrary to popular belief, relation schemes in good classical normal forms are not necessarily devoid of redundancies. This arises from the fact that classical data dependencies ...
Tok Wang Ling, Cheng Hian Goh
CATS
2006
13 years 11 months ago
On the Logical Implication of Multivalued Dependencies with Null Values
The implication of multivalued dependencies (MVDs) in relational databases has originally been defined in the context of some fixed finite universe (Fagin 1977, Zaniolo 1976). Whi...
Sebastian Link
AAAI
1998
13 years 11 months ago
Two Forms of Dependence in Propositional Logic: Controllability and Definability
We investigate two forms of dependence between variables and/or formulas within a propositional knowledge base: controllability (a set of variables X controls a formula , if there...
Jérôme Lang, Pierre Marquis
CORR
2011
Springer
165views Education» more  CORR 2011»
13 years 4 months ago
From IF to BI: a tale of dependence and separation
We take a fresh look at the logics of informational dependence and independence of Hintikka and Sandu and V¨a¨an¨anen, and their compositional semantics due to Hodges. We show h...
Samson Abramsky, Jouko A. Väänänen
VTC
2006
IEEE
125views Communications» more  VTC 2006»
14 years 3 months ago
On Ordering Optimization for MIMO Systems with Decentralized Receivers
Abstract— This paper addresses Tomlinson-Harashima Precoding (THP) for the downlink of multiuser systems, where the transmitter is equipped with multiple antennas and each decent...
René Habendorf, Gerhard Fettweis