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2 2012

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The branch and bound algorithm improvement in divisible load scheduling with result collection on heterogeneous systems by new heuristic function

Fard F. N., Mohammadi S., Parvizi P.

Journal of Automation Mobile Robotics and Intelligent Systems

2012

Vol. 6, No. 3

47-50

In this paper we propose a new heuristic function for branch and bound algorithm. By this function we can increase the efficiency of branch and bound algorithm. Divisible loads represent computations which can be arbitrarily divided into parts and performed independently parallel. The scheduling problem consists in distributing the load in a heterogeneous system taking into account communication and computation times, so that the whole processing time is as short as possible. Since our scheduling problem is computationally hard, we propose a branch & bound algorithm. By simulating and comparing results it is observed which this result produces better answers than other methods, it means that branch and bound algorithm have less total average of relative error percentage in the variety Heuristic functions.

Intelligent BRT in Tehran

Parvizi P., Mohammadi S., Fard F. N.

Journal of Automation Mobile Robotics and Intelligent Systems

2012

Vol. 6, No. 1

49-52

An intelligent BRT system is necessary when communities looking for new ways to use high capacity rapid transit at a reduced cost. This paper will describe the intelligent control system that works with Datacenter. With the help of GPS system, the data center can monitor the situation of each bus and bus station. Through RFID technology, bus station and traffic light can transfer data with bus and by Wimax communication technology all of parts can talk together; data center learns all information about the location of bus, the arrival of bus in each station and the number of passengers in station and bus. Finally, the paper presents the case study of those theories in Tehran BRT.