Fuzzy functional dependency (FFD) is a kind of semantic knowledge and can be discovered from a large volume of business data. Sectional FFD and Attribute FFD are discussed so as to reflect semantics of the business world and express useful information that is natural for people to comprehend. The experimental results on an insurance data set show that the proposed method can extract knowledge e...

Background modeling is a key step of background subtraction methods used in the context of static camera. The goal is to obtain a clean background and then detect moving objects by comparing it with the current frame. Mixture of Gaussians Model [1] is the most popular technique and presents some limitations when dynamic changes occur in the scene like camera jitter, illumination changes and mov...

This paper models uctuations in regional disaggregates as a nonstationary, dynamically evolving distribution. Doing so enables study of the dynamics of aggregate uctuations jointly with those of the rich cross-section of regional disaggregates. For the US, the leading state| regardless of which it happens to be|contains strong predictive power for aggregate uctuations. This e ect is di cult to ...

c Deutsches Forschungszentrum f ¨ ur K ¨ unstliche Intelligenz 1997 This work may not be copied or reproduced in whole of part for any commercial purpose. Permission to copy in whole or part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that such copying is by permission of the Deu...

A second problem in analogical reasoning, addressed for instance by Holyoak [7] and Gentner [5], is to choose from a variety of possible analogical mappings. As we shall show, solution-relevant abstractions can be exploited for this task as well. A third non-trivial job in the analogy procedure is to determine the reformulations (adaptations) of problems and solutions. To some extent the proofr...