نتایج جستجو برای: lower level problem
تعداد نتایج: 2413633 فیلتر نتایج به سال:
The buffer allocation problem is an NP-hard combinatorial optimization problem, and it is an important design problem in manufacturing systems. The research proposed in this paper concerns a product line consisting of n unreliable machines with n − 1 buffers and a preventive maintenance policy. The focus of the research is to obtain a better trade-off between the buffer level ...
deposite the different criticisms on contrastive analysis it has been proved that the results of it(when processed)can be usuful in a tefl environment,specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims. the consonants,vowels,stress and intonation of the twolanguages are described by the same model-ta...
cognitive studies of translation process have recently been awarded a great deal of attention. there exists a psychological angle to almost all translation activities. the present study, thus, deals with analysing the relationships between iranian prospective translators tolerance for ambiguity (ta) and their willingness to translate (wtt). the research was conducted as a mixed methods study, d...
The Bandwidth Problem seeks for a simultaneous permutation of the rows and columns adjacency matrix graph such that all nonzero entries are as close possible to main diagonal. This work focuses on investigating novel approaches obtain lower bounds bandwidth problem. In particular, we use vertex partitions bound graph. Our approach contains prior bounding special cases. By varying sizes partitio...
in this paper we present the problem of designing a three level hub center network. in our network, the top level consists of a complete network where a direct link is between all central hubs. the second and third levels consist of star networks that connect the hubs to central hubs and the demand nodes to hubs and thus to central hubs, respectively. we model this problem in an incomplete net...
The cognitive theory of emotions maintains that emotions necessarily involve cognition, and typically considers emotions as judgment in higher forms (or, in the form of complex appraisal judgments). It is especially in the form of thoughts, beliefs, conceptualization and propositional attitudes. Such a theory is challenged by somatic theory, which conversely regards emotions as non-cognitive, b...
The bilevel programming (BP) problem is a hierarchical optimization problem where a subset of the variables is constrained to be a solution of a given optimization problem pa-rameterized by the remaining variables. The BP problem is a multilevel programming problem with two levels. The hierarchical optimization sctructure appears naturally in many applications when lower level actions depend on...
Lower bounds for the condition numbers of the preconditioned systems are obtained for two-level additive Schwarz preconditioners for both second order and fourth order problems. They show that the known upper bounds are sharp in the case of a small overlap.
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