نتایج جستجو برای: hybrid simulated annealing

تعداد نتایج: 333300  

2006
Dipti Patra

─ In this article a novel parallel hybrid algorithm is proposed for image restoration. The Image restoration problem is formulated as a Maximum a Posteriori (MAP) estimation problem. The noise free image is modeled as Markov Random Field Model. The MAP estimates are obtained by the proposed hybrid Tabu algorithms. The performance of the algorithm is enhanced by parallelizing the proposed hybrid...

Journal: :J. Global Optimization 2000
Sanguthevar Rajasekaran

Simulated Annealing is a family of randomized algorithms used to solve many combinatorial optimization problems. In practice they have been applied to solve some presumably hard (e.g., NP-complete) problems. The level of performance obtained has been promising [5, 2, 6, 14]. The success of this heuristic technique has motivated analysis of this algorithm from a theoretical point of view. In par...

2011
Sei Suzuki

We study errors of quantum annealing and simulated annealing to highlight better performance of quantum annealing over simulated annealing. Quantum annealing and simulated annealing perform optimization through a quantum adiabatic evolution and a quasi-static evolution respectively. In both methods, dynamics across a phase transition plays a crucial role. The Kibble-Zurek mechanism is known as ...

Journal: :تحقیقات مالی 0
سعید قدوسی کارشناس‎ارشد مدیریت مالی، دانشگاه تهران، تهران، ایران رضا تهرانی دانشیار مدیریت مالی، دانشکدۀ مدیریت دانشگاه تهران، تهران، ایران مهدی بشیری دانشیار مهندسی صنایع، دانشکدۀ فنی دانشگاه شاهد، تهران، ایران

the markowitz issue of optimization can’t be solved by precise mathematical methods such as second order schematization, when real world condition and limitations are considered. on the other hand, most managers prefer to manage a small portfolio of available assets in place of a huge portfolio. it can be analogized to cardinal constrains, that is, constrains related to minimum and maximum curr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران 1378

پس از پدید آمدن شبکه های بهم پیوسته و بخصوص شبکه های منطقه ای، نوع جدیدی از پایداری مورد توجه قرار گرفت که به دینامیک سیستم و فرکانس های طبیعی آن مربوط می شود و پایداری دینامیکی نام دارد. پدیده های تشدید زیر سنکرون و نوسانات فرکانس پایین از مظاهر این نوع پایداری هستند که در این پایان نامه نوسانات فرکانس پایین حاصل از مودهای الکترومکانیکی ضعیف سیستم مورد بررسی قرار گرفته است . ابتدا بحثی کلی روی...

Journal: :Advances in Engineering Software 2012
F. Musharavati A. S. M. Hamouda

Capabilities of enhanced simulated-annealing-based algorithms in solving process planning problems in reconfigurable manufacturing are investigated. The algorithms are enhanced by combining variants of the simulated annealing technique with other algorithm concepts such as (i) knowledge exploitation and (ii) parallelism. Four configurations of simulated annealing algorithms are devised and enga...

2000
Dongkyung Nam Cheol Hoon Park

As multiobjective optimization problems have many solutions, evolutionary algorithms have been widely used for complex multiobjective problems instead of simulated annealing. However, simulated annealing also has favorable characteristics in the multimodal search. We developed several simulated annealing schemes for the multiobjective optimization based on this fact. Simulated annealing and evo...

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