نتایج جستجو برای: uncertain process

تعداد نتایج: 1363861  

Journal: :Entropy 2014
Weiyuan Ma Changpin Li Yujiang Wu Yongqing Wu

In this paper, the parameters identification and synchronization problem of fractional-order neural networks with time delays are investigated. Based on some analytical techniques and an adaptive control method, a simple adaptive synchronization controller and parameter update laws are designed to synchronize two uncertain complex networks with time delays. Besides, the system parameters in the...

2002
Evguenia Altareva

Applying various data mining techniques to the task of integrating heterogeneous databases into one system leads to the necessity of dealing with uncertain information. The problem of integration is not trivial due to a number of unavoidable conflicts and contradictions. It becomes even more complex, when the initial information is uncertain. We classify three types of uncertainty associated wi...

2013
Florent Di Meglio Delphine Bresch-Pietri Ulf Jakob F. Aarsnes

We present an adaptive observer design for a first-order hyperbolic system of Partial Differential Equations with uncertain boundary parameters. The design relies on boundary measurements only, and is based on a backstepping approach. Using a Gradient Descent technique, we prove exponential convergence of the distributed system and estimation of the parameter. This method is applied to the esti...

2001
R. Nikoukhah S. L. Campbell F. Delebecque

An auxiliary signal is an input signal that enhances the identifiability of a model based on input-output observations. Assuming that the normal and the failed behaviors of a process can be modeled by two linear uncertain systems, failure detectability can be seen as a multi-model identification problem. In this paper, we extend previous results on auxiliary signal design for multi-model identi...

1994
Ee-Peng Lim Jaideep Srivastava Shashi Shekhar

Resolving domain incompatibility among independently developed databases often involves uncertain information. DeMichiel 5] showed that uncertain information can be generated by the mapping of connicting attributes to a common domain, based on some domain knowledge. In this paper, we show that uncertain information can also arise when the database integration process requires information not di...

2015
Yufu Ning Xiao Wang Xiumei Chen

Uncertain delay differential equation (UDDE) is a type of differential equations driven by Liu process. It has been proved that uncertain delay differential equation has a unique solution in the finite domain, under the conditions that the coefficients are global Lipschitz continuous. This paper will extend this existence and uniqueness theorem from finite domain to infinite domain under the lo...

2014
Zhanli Wang Yanjuan Hu Yao Wang Chao Dong Zaixiang Pang

In the process of turning, pointing at the uncertain phenomenon of cutting which is caused by the disturbance of random factors, for determining the uncertain scope of cutting force, the integrated symmetric fuzzy number and the finite element method (FEM) are used in the prediction of cutting force. The method used symmetric fuzzy number to establish fuzzy function between cutting force and th...

Journal: :Int. J. Approx. Reasoning 1988
Max Henrion

Bayes belief networks and influence diagrams are tools for constructing coherent probabilistic representations of uncertain expert opinion. The construction of such a network with about 30 nodes is used to illustrate a variety of techniques which can facilitate the process of structuring and quantifying uncertain relationships. These include some generalizations of the "noisy OR gate" concept. ...

Journal: :Information 2017
Yue Wang Xin Jin Lei Xie Yanhui Zhang Shan Lu

Handling uncertainty in an appropriate manner during the real operation of a cyber-physical system (CPS) is critical. Uncertain production scheduling as a part of CPS uncertainty issues should attract more attention. In this paper, a Mixed Integer Nonlinear Programming (MINLP) uncertain model for batch process is formulated based on a unit-specific event-based continuous-time modeling method. U...

Journal: :پژوهش های علوم تاریخی 0
حامد سروری دانشجوی دکتری تخصصی تاریخ اسلام دانشگاه تهران رسول جعفریان استاد گروه تاریخ دانشگاه تهران

despite the serious confrontation of iranian seminaries and religious communities against a flood of western modernistic ideas and institutions, the modernistic tendencies increased in qom seminary, during the leadership of ayatollah boroujerdi. modernists often sought reforms in organization, educational programs and propagation system of seminaries and offered various reform projects to ayato...

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