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FSKD
2006
Springer
203views Fuzzy Logic» more  FSKD 2006»
15 years 5 months ago
An Interval Semi-absolute Deviation Model For Portfolio Selection
Interval number is a kind of special fuzzy number and the interval approach is a good method to deal with some uncertainty. The semi-absolute deviation risk function is extended to...
Yong Fang, Shouyang Wang
FLOPS
2008
Springer
15 years 3 months ago
On-Demand Refinement of Dependent Types
Dependent types are useful for statically checking detailed specifications of programs and detecting pattern match or array bounds errors. We propose a novel approach to applicatio...
Hiroshi Unno, Naoki Kobayashi
ESANN
2007
15 years 3 months ago
Markovian blind separation of non-stationary temporally correlated sources
In a previous work, we developed a quasi-efficient maximum likelihood approach for blindly separating stationary, temporally correlated sources modeled by Markov processes. In this...
Rima Guidara, Shahram Hosseini, Yannick Deville
ICMLA
2008
15 years 3 months ago
A Bayesian Approach to Switching Linear Gaussian State-Space Models for Unsupervised Time-Series Segmentation
Time-series segmentation in the fully unsupervised scenario in which the number of segment-types is a priori unknown is a fundamental problem in many applications. We propose a Ba...
Silvia Chiappa
SEBD
2007
114views Database» more  SEBD 2007»
15 years 3 months ago
A New Type of Metadata for Querying Data Integration Systems
Research on data integration has provided languages and systems able to guarantee an integrated intensional representation of a given set of data sources. A significant limitation...
Sonia Bergamaschi, Francesco Guerra, Mirko Orsini,...