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» Logical operations and Kolmogorov complexity
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PODS
2008
ACM
141views Database» more  PODS 2008»
14 years 8 months ago
On the complexity of deriving schema mappings from database instances
We introduce a theoretical framework for discovering relationships between two database instances over distinct and unknown schemata. This framework is grounded in the context of ...
Pierre Senellart, Georg Gottlob
ISCAS
2006
IEEE
70views Hardware» more  ISCAS 2006»
14 years 2 months ago
Quadrature mismatch shaping with a complex, tree structured DAC
— Quadrature Σ∆ ADCs require a feedback path for both the I and the Q part of the complex feedback signal. If two separated multibit feedback DACs are used, mismatch among the...
Stijn Reekmans, Jeroen De Maeyer, Pieter Rombouts,...
KI
1998
Springer
14 years 27 days ago
GOLEX - Bridging the Gap between Logic (GOLOG) and a Real Robot
The control of mobile robots acting autonomously in the real world is one of the long-term goals of the field of artificial intelligence. So far the field lacks methods bridging th...
Dirk Hähnel, Wolfram Burgard, Gerhard Lakemey...
BIRTHDAY
2009
Springer
14 years 3 months ago
Foundations of Temporal Conceptual Data Models
Abstract. This chapter considers the different temporal constructs appeared in the literature of temporal conceptual models (timestamping and evolution constraints), and it provid...
Alessandro Artale, Enrico Franconi
AI
2005
Springer
13 years 8 months ago
Knowledge updates: Semantics and complexity issues
We consider the problem of how an agent's knowledge can be updated. We propose a formal method of knowledge update on the basis of the semantics of modal logic S5. In our met...
Chitta Baral, Yan Zhang