Mohamed Qasem

Mohamed Qasem
Public Authority for Applied Education and Training | PAAET · College of Technological Studies

Ph.D.

About

9
Publications
673
Reads
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120
Citations
Additional affiliations
January 1996 - present
Public Authority for Applied Education and Training
Position
  • Professor (Assistant)

Publications

Publications (9)
Article
In this paper, an improved algorithm based on Pattern Search method (PS) to solve the Dynamic Economic Dispatch is proposed. The algorithm maintains the essential unit ramp rate constraint, along with all other necessary constraints, not only for the time horizon of operation (24 h), but it preserves these constraints through the transaction period...
Article
Full-text available
A new algorithm for solving maximum satisfiability (MAX-SAT) problems is introduced which clusters good solutions, and restarts the search from the closest feasible solution to the centroid of each cluster. This is shown to be highly efficient for finding good solutions of large MAX-SAT problems. We argue that this success is due to the population...
Thesis
Full-text available
In this thesis, we introduce a novel approach to solving MAX-SAT problems. This algorithm clusters good solutions, and restarts the search from the closest feasible configuration to the centroid of each cluster. We call this method Clustered-Landscape Guided Hopping (CLGH). In addition, where clustering does not provide an advantage due to the non-...
Conference Paper
Full-text available
In a recent paper an algorithm for solving MAX-SAT was proposed which worked by clustering good solutions and restarting the search from the closest feasible solutions. This was shown to be an extremely effective search strategy, substantially out-performing traditional optimisation techniques. In this paper we extend those ideas to a second classi...
Conference Paper
Full-text available
Hill-climbing has been shown to be more effective than ex- haustive search in solving satisfiability problems.Also, it has been used either by itself or in combination with other meth- ods to solve the most difficult region of SAT, the phase tran- sition. We show that hill-climbing also finds SAT problems difficult around the phase transition. It t...
Conference Paper
Full-text available
Adaptive variable structure control (VSC) of a class of nonlinear dynamic systems with backlash hysteresis affecting the input is considered in this paper. Utilizing the solution properties of the nonlinear differential equation that models backlash hysteresis, a robust adaptive VSC controller is developed and used to achieve global asymptotic trac...
Article
In many image analysis problems it is possible to take advantage of the structural relationships between various parts of the objects being imaged in order to index the images of the objects. For example, many satellites consists of a main body and outlying sub-components. Thus, in many circumstances satellites can be indexed in a model database by...
Article
A major problem associated with vector quantization is the complexity of exhaustive codebook search. This problem has hindered the use of this powerful technique for lossy image compression. An exhaustive codebook search requires that an input vector be compared against each code vector in the codebook in order to find the code vector that yields t...
Article
Thesis (M.S.)--Ohio State University, 2000. Includes bibliographical references (leaves 47-48). Advisor: Stanley Ahalt, Dept. of Electrical Engineering.

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