All issues
- 2024 Vol. 16
- 2023 Vol. 15
- 2022 Vol. 14
- 2021 Vol. 13
- 2020 Vol. 12
- 2019 Vol. 11
- 2018 Vol. 10
- 2017 Vol. 9
- 2016 Vol. 8
- 2015 Vol. 7
- 2014 Vol. 6
- 2013 Vol. 5
- 2012 Vol. 4
- 2011 Vol. 3
- 2010 Vol. 2
- 2009 Vol. 1
-
The tests for checking of the parallel organization in logical calculation which are based on the algebra and the automats
Computer Research and Modeling, 2017, v. 9, no. 4, pp. 621-638Views (last year): 14. Citations: 1 (RSCI).We build new tests which permit to increase the human capacity for the information processing by the parallel execution of the several logic operations of prescribed type. For checking of the causes of the capacity increasing we develop the check tests on the same logic operations class in which the parallel organization of the calculations is low-effectively. We use the apparatus of the universal algebra and automat theory. This article is the extension of the cycle of the work, which investigates the human capacity for the parallel calculations. The general publications on this theme content in the references. The tasks in the described tests may to define in the form of the calculation of the result in the sequence of the same type operations from some algebra. If this operation is associative then the parallel calculation is effectively by successful grouping of process. In Theory of operations that is the using the simultaneous work several processors. Each processor transforms in the time unit the certain known number of the elements of the input date or the intermediate results (the processor productivity). Now it is not known what kind elements of date are using by the brain for the logical or mathematical calculation, and how many elements are treating in the time units. Therefore the test contains the sequence of the presentations of the tasks with different numbers of logical operations in the fixed alphabet. That is the measure of the complexity for the task. The analysis of the depending of the time for the task solution from the complexity gives the possible to estimate the processor productivity and the form of the calculate organization. For the sequence calculations only one processor is working, and the time of solution is a line function of complexity. If the new processors begin to work in parallel when the complexities of the task increase than the depending of the solution time from complexity is represented by the curve which is convex at the bottom. For the detection of situation when the man increases the speed of the single processor under the condition of the increasing complexity we use the task series with similar operations but in the no associate algebra. In such tasks the parallel calculation is little affectivity in the sense of the increasing efficiency by the increasing the number of processors. That is the check set of the tests. In article we consider still one class of the tests, which are based on the calculation of the trajectory of the formal automat state if the input sequence is determined. We investigate the special class of automats (relay) for which the construction affect on the affectivity of the parallel calculations of the final automat state. For all tests we estimate the affectivity of the parallel calculation. This article do not contained the experiment results.
-
Research of possibility for man the parallel information handling in task series with increase complexity
Computer Research and Modeling, 2013, v. 5, no. 5, pp. 845-861Views (last year): 1. Citations: 4 (RSCI).We schedule the computer technology for present the engineer psychology tests which reveal probationer men which may hasten the logic task solution by simultaneous execution several standard logic operations. These tests based on the theory of two logic task kinds: in first kind the parallel logic is effectively, and in second kind it is not effectively. The realize experiment confirms the capability parallel logic for impotent part of people. The vital speedup execution of logic operations is very uncommon in simultaneous logic. The efficacy of methodic is confirmed.
-
Comparative analysis of human adaptation to the growth of visual information in the tasks of recognizing formal symbols and meaningful images
Computer Research and Modeling, 2021, v. 13, no. 3, pp. 571-586We describe an engineering-psychological experiment that continues the study of ways to adapt a person to the increasing complexity of logical problems by presenting a series of problems of increasing complexity, which is determined by the volume of initial data. Tasks require calculations in an associative or non-associative system of operations. By the nature of the change in the time of solving the problem, depending on the number of necessary operations, we can conclude that a purely sequential method of solving problems or connecting additional brain resources to the solution in parallel mode. In a previously published experimental work, a person in the process of solving an associative problem recognized color images with meaningful images. In the new study, a similar problem is solved for abstract monochrome geometric shapes. Analysis of the result showed that for the second case, the probability of the subject switching to a parallel method of processing visual information is significantly reduced. The research method is based on presenting a person with two types of tasks. One type of problem contains associative calculations and allows a parallel solution algorithm. Another type of problem is the control one, which contains problems in which calculations are not associative and parallel algorithms are ineffective. The task of recognizing and searching for a given object is associative. A parallel strategy significantly speeds up the solution with relatively small additional resources. As a control series of problems (to separate parallel work from the acceleration of a sequential algorithm), we use, as in the previous experiment, a non-associative comparison problem in cyclic arithmetic, presented in the visual form of the game “rock, paper, scissors”. In this problem, the parallel algorithm requires a large number of processors with a small efficiency coefficient. Therefore, the transition of a person to a parallel algorithm for solving this problem is almost impossible, and the acceleration of processing input information is possible only by increasing the speed. Comparing the dependence of the solution time on the volume of source data for two types of problems allows us to identify four types of strategies for adapting to the increasing complexity of the problem: uniform sequential, accelerated sequential, parallel computing (where possible), or undefined (for this method) strategy. The Reducing of the number of subjects, who switch to a parallel strategy when encoding input information with formal images, shows the effectiveness of codes that cause subject associations. They increase the speed of human perception and processing of information. The article contains a preliminary mathematical model that explains this phenomenon. It is based on the appearance of a second set of initial data, which occurs in a person as a result of recognizing the depicted objects.
-
Development of a hybrid simulation model of the assembly shop
Computer Research and Modeling, 2023, v. 15, no. 5, pp. 1359-1379In the presented work, a hybrid optimal simulation model of an assembly shop in the AnyLogic environment has been developed, which allows you to select the parameters of production systems. To build a hybrid model of the investigative approach, discrete-event modeling and aggressive modeling are combined into a single model with an integrating interaction. Within the framework of this work, a mechanism for the development of a production system consisting of several participants-agents is described. An obvious agent corresponds to a class in which a set of agent parameters is specified. In the simulation model, three main groups of operations performed sequentially were taken into account, and the logic for working with rejected sets was determined. The product assembly process is a process that occurs in a multi-phase open-loop system of redundant service with waiting. There are also signs of a closed system — scrap flows for reprocessing. When creating a distribution system in the segment, it is mandatory to use control over the execution of requests in a FIFO queue. For the functional assessment of the production system, the simulation model includes several functional functions that describe the number of finished products, the average time of preparation of products, the number and percentage of rejects, the simulation result for the study, as well as functional variables in which the calculated utilization factors will be used. A series of modeling experiments were carried out in order to study the behavior of the agents of the system in terms of the overall performance indicators of the production system. During the experiment, it was found that the indicator of the average preparation time of the product is greatly influenced by such parameters as: the average speed of the set of products, the average time to complete operations. At a given limitation interval, we managed to select a set of parameters that managed to achieve the largest possible operation of the assembly line. This experiment implements the basic principle of agent-based modeling — decentralized agents make a personal contribution and affect the operation of the entire simulated system as a whole. As a result of the experiments, thanks to the selection of a large set of parameters, it was possible to achieve high performance indicators of the assembly shop, namely: to increase the productivity indicator by 60%; reduce the average assembly time of products by 38%.
-
Cataloging technology of information fund
Computer Research and Modeling, 2015, v. 7, no. 3, pp. 661-673Views (last year): 3.The article discusses the approach to the improvement of information processing technology on the basis of logical-semantic network (LSN) Question–Answer–Reaction aimed at formation and support of the catalog service providing efficient search of answers to questions.
The basis of such a catalog service are semantic links, reflecting the logic of presentation of the author's thoughts within the framework this publication, theme, subject area. Structuring and support of these links will allow working with a field of meanings, providing new opportunities for the study the corps of digital libraries documents. Cataloging of the information fund includes: formation of lexical dictionary; formation of the classification tree for several bases; information fund classification for question–answer topics; formation of the search queries that are adequate classification trees the question–answer; automated search queries on thematic search engines; analysis of the responses to queries; LSN catalog support during the operational phase (updating and refinement of the catalog). The technology is considered for two situations: 1) information fund has already been formed; 2) information fund is missing, you must create it.
-
Algorithmic construction of explicit numerical schemes and visualization of objects and processes in the computational experiment in fluid mechanics
Computer Research and Modeling, 2015, v. 7, no. 3, pp. 767-774Views (last year): 1.The paper discusses the design and verification stages in the development of complex numerical algorithms to create direct computational experiments in fluid mechanics. The modeling of physical fields and nonstationary processes of continuum mechanics, it is desirable to rely on strict rules of construction the numerical objects and related computational algorithms. Synthesis of adaptive the numerical objects and effective arithmetic- logic operations can serve to optimize the whole computing tasks, provided strict following and compliance with the original of the laws of fluid mechanics. The possibility of using ternary logic enables to resolve some contradictions of functional and declarative programming in the implementation of purely applied problems of mechanics. Similar design decisions lead to new numerical schemes tensor mathematics to help optimize effectiveness and validate correctness the simulation results. The most important consequence is the possibility of using interactive graphical techniques for the visualization of intermediate results of modeling, as well as managed to influence the course of computing experiment under the supervision of engineers aerohydrodynamics– researchers.
Indexed in Scopus
Full-text version of the journal is also available on the web site of the scientific electronic library eLIBRARY.RU
The journal is included in the Russian Science Citation Index
The journal is included in the RSCI
International Interdisciplinary Conference "Mathematics. Computing. Education"