Zobrazeno 1 - 10
of 102
pro vyhledávání: '"O. Hoyer"'
Publikováno v:
Oxford Bulletin of Economics and Statistics. 75:705-730
Structural vector-autoregressive models are potentially very useful tools for guiding both macro- and microeconomic policy. In this study, we present a recently developed method for estimating such models, which uses non-normality to recover the caus
Publikováno v:
Neurocomputing. 72:2024-2027
Many methods have been proposed for discovery of causal relations among observed variables. But one often wants to discover causal relations among latent factors rather than observed variables. Some methods have been proposed to estimate linear acycl
Publikováno v:
International Journal of Approximate Reasoning. 49(2):362-378
The task of estimating causal effects from non-experimental data is notoriously difficult and unreliable. Nevertheless, precisely such estimates are commonly required in many fields including economics and social science, where controlled experiments
Publikováno v:
IEEE Transactions on Pattern Analysis and Machine Intelligence. 29:896-900
Recently, a number of empirical studies have compared the performance of PCA and ICA as feature extraction methods in appearance-based object recognition systems, with mixed and seemingly contradictory results. In this paper, we briefly describe the
Publikováno v:
Computational Statistics & Data Analysis. 50:3278-3293
The application of independent component analysis to discovery of a causal ordering between observed variables is studied. Path analysis is a widely-used method for causal analysis. It is of confirmatory nature and can provide statistical tests for a
Autor:
Patrik O. Hoyer
Publikováno v:
Neurocomputing. :547-552
An important approach in visual neuroscience considers how the processing of the early visual system is dependent on the statistics of the natural environment. A particularly influential model in this respect has been sparse coding. In this paper we
Autor:
Patrik O. Hoyer, Aapo Hyvärinen
Publikováno v:
Neurocomputing. :459-466
An important approach in visual neuroscience considers how the function of the early visual system relates to the statistics of its natural input. Previous work has shown how the classical receptive fields and the organization (topography) of the pri
Publikováno v:
Water Supply. 2:63-69
The new plant for the treatment of water from the Wahnbach-reservoir went into operation at Siegburg, Germany in 2001. It will have a capacity of 3,600 to 4,800 m3/h and is intended for drinking water supply of the Bonn region. The relatively simple
Publikováno v:
Encyclopedia of Computational Neuroscience
In ordinary independent component analysis, the components are assumed to be completely independent, and they do not necessarily have any meaningful order relationships. In practice, however, the estimated “independent” components are often not a
Publikováno v:
Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz. 44:377-381
Die seuchenhygienischen Anforderungen an das Trinkwasser leiten sich aus den Beobachtungen von Praxiszwischenfallen ab. Eine der bekanntesten und auch heute noch uneingeschrankt gultigen Anforderungen zur Bereitstellung eines seuchenhygienisch unbede