Classes of objects that form the information system structure for monitoring the water environment hydrophysical fields have been developed. Class descriptions include object parameters that affect ...the composition and operation of the system, and methods that define actions with class instances. Additional control classes are proposed for describing the interaction of objects and simulating the sensing process.
This paper proposes a strategy that allows a researcher to choose the most effective method of data analysis according to a given set of criteria. The strategy is based on the Analytic Hierarchy ...Process, which is a system procedure for hierarchical representation of elements that determine the essence of the problem. An example of applying the strategy using four quality criteria and six cluster analysis methods as research alternatives is given.
This article is based on the researches, those aim is to solve an interdisciplinary fundamental scientific problem - the study of big data analysis technologies for developing scenarios of ...communication mechanisms formation for working with Internet communities in order to reintegrate a post-conflict society, for example, Ukraine. The strategy is based on the method of classification of VK user communities relying on keywords.
This paper provides a detailed overview of existing solutions in the sphere of remote technologies that allow one to train a domain IT-expert in working with databases. As the main tool of the ...electronic educational course on this topic, the authors justify the development of an electronic module integrated into the LMS Moodle, which would simulate an interface similar to a console MySQL client with a connection to a real MySQL server. Such an electronic element will allow students to improve the skills of forming SQL queries directly from the electronic course, and the teacher to control the learning process automatically and with minimal labor costs.
The article proposed and reviewed a 3D model of the utility matrix, showing its analysis and proposing a generalized algorithm for solving a multi-critical decision-making problem under conditions of ...uncertainty based on this model. The essence of the technique is that the matrix-cube is divided into sections parallel to any axis (the axis of alternative solutions, the axis of undefined external situations, or the axis of criteria) and as a result we get several two-dimensional utility matrices to which we can apply any of the standard methods for solving decision-making' problems. The application of the described method to finding the optimal solution in the conditions of uncertainty is shown by example.
The paper examines the development of an object model that maps the structure of an information measurement system for water environment research and the process of information evolution from a ...physical measured quantity to a data file. The presented object instance action and behavior models allow to describe the operation of the system by object-oriented design tools.
The article discusses the problem automating the construction of schedules for cement production. The necessity using a computer system for planning the loading of technological equipment is ...substantiated in order to develop the optimal use of available resources for the timely and high-quality execution production tasks. The essence of the problem is shown, which is to allocate resources (cement mills and produced brands of cement) the production system for a given target plan so as to exclude deviations the real plan from the target, as well as to reduce the number of mill switchings to a minimum. The formalization the task planning the loading the mills is carried out and those essential parameters of the process are given, which are selected as the initial data for solving the task planning the operation of grinding mills. The solution to the problem constructing schedules for the operation of cement mills is based on the use of a genetic algorithm, for which an implementation sequence is proposed. The results solving the problem are also presented, which confirm the correctness the chosen method and its implementation.
The article discusses the issue optimization of the equipment loading schedules for automated technological complexes using genetic programming. Criteria for evaluating the effectiveness of the ...resulting schedule are determined. A two-level chromosome is proposed, containing information on the size the batch each type of detail and the sequence of their launch into production. A modification of the two-point crossing-over and the mutation operator has been developed, in which values are exchanged between two randomly selected chromosome elements. When a conflict occurs in the repeatability of string elements, a chain transformations is built based on the known chromosome regions, which give a one-to-one mapping. An object-oriented model of the work of automated technological complexes is used as a fitness function. The proposed modified genetic algorithm makes it possible to obtain suboptimal schedules of the complex operation within an acceptable time date.
In paper object model of distributed corporate information system is developed in the form of interacting models of its typical components, which takes into account replication and distribution of ...data between nodes of computer network, characteristics of hardware and makes it possible to simulating DCIS of any structure. A new modification of the genetic algorithm for the DCIS optimization problem has been developed, in which combined multichromosomes have been used to represent the placement of database tables, applications and parameters of servers, network devices and communication channels, genetic operators of recombination, crossover and mutation have been developed. To optimize the DCIS functioning, together with a modified genetic algorithm, the object model is used, that calculates the fitness-function, forming the optimal configuration of DCIS data distribution and hardware parameters in real time for the performance criterion formulated as the minimization of the system response time. A serial scheme of implementation of the genetic algorithm was developed, which includes full or partial optimization of DCIS in accordance with the requirements. The approach proposed allows obtaining suboptimal solution to the DCIS optimization problem with deviation from the global optimum of no more than 5%.
This article presents testing results for the model of organizational and technological processes in a flexible production system using the instrumental capabilities of ant algorithms for operational ...production scheduling. As a result of computer experiments, we have determined that implementing the proposed model allows for increasing the average load coefficient for flexible production modules that results into transport unload, thereby solving the problem of equipment idle time. Also, based on the testing data of the proposed model using the ant colonies method applied during machining tools, such as solids of revolution, for a set production plan, the possibility of reducing the number of flexible manufacturing modules at a production site without reduction of output was considered.
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