نتایج جستجو برای: fuzzy variational problems

تعداد نتایج: 689020  

Journal: :Interfaces and Free Boundaries 2008

2010
Fang Li Michael K. Ng Robert J. Plemmons Sudhakar Prasad Qiang Zhang

An important aspect of spectral image analysis is identification of materials present in the object or scene being imaged. Enabling technologies include image enhancement, segmentation and spectral trace recovery. Since multi-spectral or hyperspectral imagery is generally low resolution, it is possible for pixels in the image to contain several materials. Also, noise and blur can present signif...

Journal: :Journal of Mathematical Analysis and Applications 1968

Journal: :Advances in Nonlinear Analysis 2012

Journal: :The Journal of Geometric Analysis 2020

Journal: :Communications in Mathematical Physics 2011

Journal: :Annales de l'Institut Henri Poincaré C, Analyse non linéaire 1989

2015
Guo-Yong Wang Bing-Lei Guan

We consider the problem of nonlinear filtering under the circumstance of unknown covariance statistic of the measurement noise. A novel adaptive unscented Kalman filter (UKF) integrating variational Bayesian methods and fuzzy logic techniques is proposed in this paper. It is called fuzzy adaptive variational Bayesian UKF (FAVBUKF). Firstly, the sufficient statistics of the measurement noise var...

Journal: :J. Applied Mathematics 2013
João de Deus Mendes da Silva Jefferson Cruz dos Santos Leite Rodney Carlos Bassanezi Moiseis dos Santos Cecconello

P-fuzzy dynamical systems are variational systems whose dynamic is obtained by means of a Mamdani type fuzzy rule-based system. In this paper, particularly, we are going to approach the 1-dimensional p-fuzzy dynamical systems and will present theorems that establish conditions of existence and uniqueness of stationary points. Besides the obtained analytical results, we will present examples tha...

A. Tari,

F. Shakeri and M. Dehghan in [13] presented the variational iteration method for solving the model describing biological species living together. Here we suggest the differential transform (DT) method for finding the numerical solution of this problem. To this end, we give some preliminary results of the DT and by proving some theorems, we show that the DT method can be easily applied to mentio...

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