نتایج جستجو برای: forward modelling

تعداد نتایج: 278437  

2009
Ruzairi Abdul Rahim Leong Lai Chen Chan Kok San Mohd Hafiz Fazalul Rahiman Pang Jon Fea

This paper explains in detail the solution to the forward and inverse problem faced in this research. In the forward problem section, the projection geometry and the sensor modelling are discussed. The dimensions, distributions and arrangements of the optical fibre sensors are determined based on the real hardware constructed and these are explained in the projection geometry section. The gener...

Journal: :Physics in medicine and biology 2002
K Jerbi J C Mosher S Baillet R M Leahy

Magnetoencephalography (MEG) is a non-invasive functional imaging modality based on the measurement of the external magnetic field produced by neural current sources within the brain. The reconstruction of the underlying sources is a severely ill-posed inverse problem typically tackled using either low-dimensional parametric source models, such as an equivalent current dipole (ECD), or high-dim...

2010
Ole E. Barndorff-Nielsen Fred Espen Benth Almut E. D. Veraart

This paper proposes a new modelling framework for electricity forward markets based on so– called ambit fields. The new model can capture many of the stylised facts observed in energy markets and is highly analytically tractable. We give a detailed account on the probabilistic properties of the new type of model, and we discuss martingale conditions, option pricing and change of measure within ...

2002
Nicolas Audet Pirja Heiskanen Jussi Keppo Iivo Vehviläinen

This paper considers the modelling of electricity forward curve dynamics with parameterized volatility and correlation structures. We estimate the model parameters by using the Nordic market’s price data and show how the model can be implemented into everyday industry practice.

2007
S. Mackie P. Francis

Cloud detection always relies on some knowledge of how clear and cloudy observations will differ. In a full Bayesian determination of the probability that an infrared image pixel contains cloud, an estimate of the brightness temperature distribution for clear and cloudy cases is required. A method for estimating this distribution for cloudy atmospheric states through exploitation of the knowled...

2009
Sheng CHEN

The objective of modelling from data is not that the model simply fits the training data well. Rather, the goodness of a model is characterized by its generalization capability, interpretability and ease for knowledge extraction. All these desired properties depend crucially on the ability to construct appropriate parsimonious models by the modelling process, and a basic principle in practical ...

2009
Sheng CHEN

The objective of modelling from data is not that the model simply fits the training data well. Rather, the goodness of a model is characterized by its generalization capability, interpretability and ease for knowledge extraction. All these desired properties depend crucially on the ability to construct appropriate parsimonious models by the modelling process, and a basic principle in practical ...

Journal: :Geological Survey of Denmark and Greenland (GEUS) Bulletin 2005

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