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This paper analysis the effectiveness of various modifications of the ant colonies method applied to solve the traveling salesman problem. The effectiveness of different algorithms (e. g. the original, elite and rank) was considered in terms of the algorithm convergence speed depending on the number of ants in the colony, the initial stock of pheromone and pheromone evaporation rate. Modification of the ant algorithms, allowing to increase the speed of finding the optimal solution by incorporating the algorithm «Queen» tracking the current state of the solution and the change of the correction algorithm, is proposed.
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This article analyzes the presentation method of the two FIFO-queues in the memory of size m units. It is assumed that on the odd step inserting items into one of the queues while on the even step deleting items from the queues are allowed. Considering the known probability of operations, we solve the problem of shared memory optimal partitioning between queues in the case of consecutive cyclic representation of queues. The optimality criterion is considered as a minimum percentage of lost items at infinite time of the queue.
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The aim of article is to analyze various approaches to definition of interpretability, to form most complete list of criterion of interpretability of fuzzy sets and linguistic scales, and also to give semantic and formal definition of such criterion. The results can be while designing rule bases and data bases of interpretable fuzzy systems.
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It is believed that a business process may be revealed using a bottom-up, but the model obtained in this way overloaded with details, are difficult to understand and often just provide a description of an individual script execution. The methods of model construction process using a top-down, highlighting all of the scripts execution is presenred. The result is a multi-level hierarchical model, suitable for analysis.
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An enterprise location problem solution by means of logistic methods and GIS MapInfo tools is presented. The features of several logistics techniques as well as recommendations on their use in conjunction with the GIS tools were given.
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The article analyzes non-stationary arising in the process of project management at the industrial enterprises and their effect on the project structure. The method which provides accounting of non-stationary in the project temporal-logical model structure is presented. An example of the practical use of this method is given.
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