نتایج جستجو برای: inverse modeling

تعداد نتایج: 475059  

2008
Daniele Marzorati Matteo Matteucci Davide Migliore Domenico G. Sorrenti

The recent literature has shown that it is possible to solve the monocular Simultaneous Localization And Mapping using both undelayed features initialization and an Extedend Kalman Filter. The key concept, to achieve this result, was the introduction of a new parametrization called Unified Inverse Depth that produces measurements equations with a high degree of linearity and allows an efficient...

2004
Bowen Hui

Research in the field of user modeling has aimed to supersede the current “one-size-fits-all” trend in software development that forces users to change their behaviour according to the preprogrammed functions. This paper discusses aspects of user modeling and its relevance to software customization. In particular, we focus on user modeling techniques that utilize probabilistic and decision-theo...

2010
Felix Pasila

Inverse kinematics analysis plays an important role in developing a robot manipulator. But it is not too easy to derive the inverse kinematic equation of a robot manipulator especially robot manipulator which has numerous degree of freedom. This paper describes an application of Artificial Neural Network for modeling the inverse kinematics equation of a robot manipulator. In this case, the robo...

2015
Bo Jiang Chao Ye Jun S. Liu

We study the problem of independence and conditional independence tests between categorical covariates and a continuous response variable, which has an immediate application in genetics. Instead of estimating the conditional distribution of the response given values of covariates, we model the conditional distribution of covariates given the discretized response (aka “slices”). By assigning a p...

2004
D. K. Henze J. H. Seinfeld A. Sandu G. R. Carmichael

[1] The feasibility of inverse modeling a multicomponent, size-resolved aerosol evolving by condensation/evaporation is investigated. The adjoint method is applied to the multicomponent aerosol dynamic equation in a box model (zero-dimensional) framework. Both continuous and discrete formulations of the model (the forward equation) and the adjoint are considered. A test example is studied in wh...

2007
D. M. Tartakovsky A. Guadagnini B. E. Wohlberg

Geostatistics has become a preferred tool for the identification of lithofacies from sparse data, such as measurements of hydraulic conductivity and porosity. Recently we demonstrated that the support vector machine (SVM), a tool from machine learning, can be readily adapted for this task, and offers significant advantages. On the conceptual side, the SVM avoids the use of untestable assumption...

2013
W. Tang D. Cohan L. N. Lamsal X. Xiao

Introduction Conclusions References

Journal: :Chaos 2009
Peter beim Graben Roland Potthast

Inverse problems for dynamical system models of cognitive processes comprise the determination of synaptic weight matrices or kernel functions for neural networks or neural/dynamic field models, respectively. We introduce dynamic cognitive modeling as a three tier top-down approach where cognitive processes are first described as algorithms that operate on complex symbolic data structures. Seco...

1998
Bernard J. Geurts

Approximate higher order polynomial inversion of the top-hat filter is developed with which the turbulent stress tensor in Large-Eddy Simulation can be consistently represented using the filtered field. Generalized (mixed) similarity models are proposed which improved the agreement with the kinetic energy transfer to small scales. These similarity models are analyzed for random periodic signals...

2009
A. Moradi Tehrani E. Slob

We present a fast method for modeling three-dimensional low frequency controlled source electro-magnetic (CSEM) problems. We apply the method to the marine controlled source electromagnetic (MCSEM) exploration situation where conductivity and permittivity are different from the known background medium. For 3D problems fast computational methods are relevant for both forward and inverse modeling...

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