MODELS OF A QUANTITATIVE SCALE FOR EVALUATING SEMANTIC INFORMATION

2020 ◽  
Vol 2020 (2) ◽  
pp. 24-32
Author(s):  
Pyotr Shalimov
Keyword(s):  
Mathematical Modeling ◽  
Comparative Analysis ◽  
Software Package ◽  
Semantic Information ◽  
Information Environment ◽  
Computational Experiments ◽  
Simulation Studies ◽  
Evaluation Mode

The problem of mathematical modeling of semantic information is analyzed. A model of the information environment as a carrier of semantic information is developed. The procedure for evaluating semantic information in the simulation of functioning in the accumulation and evaluation mode is presented. A software package for creating an information environment and conducting simulation studies has been developed. We consider the setting of computational experiments in the comparative analysis of the amount of semantic information of a text resource. The most current applications of the model are shown.

MULTI-HOP WIRELESS NETWORKS AUTOMATED SIMULATION

2017 ◽  
Vol 13 (3) ◽  
pp. 68-78
Author(s):  
A. A. Pavlov ◽  
I. O. Datyev ◽  
M. G. Shishaev
Keyword(s):  
Wireless Networks ◽  
Comparative Analysis ◽  
Simulation Model ◽  
Conceptual Model ◽  
Software Package ◽  
Software Tools ◽  
Specialized Software ◽  
Automated Simulation ◽  
Network Simulators ◽  
Modern Experience

Simulation is the main way for testing technologies in the field of multi-hop wireless networks (MWN). Creating a simulation model MWN - a time-consuming task associated with the use of specialized software tools, called network simulators. In this paper, the modern experience of modeling MWN and the main problems are formulated. One of the main problem is the comparative analysis' impossibility of the experiments results conducted by various researchers. This is due to the reasons associated with the models used for testing, the planning an imitation experiment and the principal differences in the network simulators. To solve this problem, authors propose a generalized conceptual model of MWN simulation and a specialized software package that automates the execution of experiment series in a heterogeneous modeling environment.

scholarly journals Different algorithms, different models

2021 ◽  
Author(s):  
Martyna Daria Swiatczak
Keyword(s):  
Comparative Analysis ◽  
Real World ◽  
Qualitative Comparative Analysis ◽  
Comparative Methods ◽  
Data Sets ◽  
Simulation Studies ◽  
Threshold Values ◽  
Real World Data ◽  
Software Packages ◽  
Methodological Approaches

AbstractThis study assesses the extent to which the two main Configurational Comparative Methods (CCMs), i.e. Qualitative Comparative Analysis (QCA) and Coincidence Analysis (CNA), produce different models. It further explains how this non-identity is due to the different algorithms upon which both methods are based, namely QCA’s Quine–McCluskey algorithm and the CNA algorithm. I offer an overview of the fundamental differences between QCA and CNA and demonstrate both underlying algorithms on three data sets of ascending proximity to real-world data. Subsequent simulation studies in scenarios of varying sample sizes and degrees of noise in the data show high overall ratios of non-identity between the QCA parsimonious solution and the CNA atomic solution for varying analytical choices, i.e. different consistency and coverage threshold values and ways to derive QCA’s parsimonious solution. Clarity on the contrasts between the two methods is supposed to enable scholars to make more informed decisions on their methodological approaches, enhance their understanding of what is happening behind the results generated by the software packages, and better navigate the interpretation of results. Clarity on the non-identity between the underlying algorithms and their consequences for the results is supposed to provide a basis for a methodological discussion about which method and which variants thereof are more successful in deriving which search target.

COMPARATIVE ANALYSIS OF ATTITUDES TOWARDS ENVIRONMENTAL ISSUES

2020 ◽  
Author(s):  
M.V. Yadrovskaya ◽  
◽  
N.A. Kalyuzhny
Keyword(s):  
Mathematical Modeling ◽  
Comparative Analysis ◽  
Statistical Modeling ◽  
Information Technologies ◽  
Environmental Issues ◽  
Internet Technologies ◽  
Rostov Region ◽  
Initial Stage ◽  
Don River ◽  
Graphical Presentation

The work was carried out within the framework of the initial stage of the master's research related to the application of mathematical modeling and information technologies to the study of environmental problems of water bodies. The work presents the results of statistical modeling associated with the processing of data from two surveys: residents of the Rostov region and foreign residents. Based on the results of surveys carried out using Internet technologies, the authors make some conclusions about the attitude of residents to the problems under consideration. The proposed results are accompanied by graphical presentation in the form of diagrams, which greatly simplifies understanding. The results also make it possible to justify the next stage of the scientific research - modeling plastic in the Don River.

scholarly journals RESEARCH OF INFLUENCE OF AIR TEMPERATURE ON THE LEVEL OF NITROGEN OXIDES IN SMOKE GASES OF BOILER PLANTS

2019 ◽  
Vol 9 (4) ◽  
pp. 27-32
Author(s):  
Olga A. BALANDINA ◽  
Svetlana M. PURING
Keyword(s):  
Mathematical Modeling ◽  
Nitric Oxide ◽  
Nitrogen Oxides ◽  
Flue Gas ◽  
Software Package ◽  
Flame Temperature ◽  
Combustion Process ◽  
Flue Gases ◽  
Oxidizing Agent ◽  
Mixture Formation

The analysis of the values of the concentrations of the formed nitrogen oxides and the temperatures of the jet plume under various conditions of mixture formation is carried out. The plots of the distribution of torch temperatures and concentrations of nitric oxide in the calculated area for oxidizer temperatures of 20, 60, 100, 150, and 200 ° C were obtained and analyzed. Mathematical modeling of the gaseous fuel combustion process was carried out using the FlowVision software package. An analysis of the results showed that a decrease in the temperature of the air supplied as an oxidizing agent leads to a significant decrease in the concentration of nitrogen oxides in flue gases, while not significantly affecting the change in the flame temperature. The research results can be used to solve the problems of optimizing boiler plants, in order to reduce harmful flue gas emissions. Further modeling is planned to determine the dependence of the influence of various factors on the degree of formation of nitrogen oxides in the flue gases of boiler plants.

scholarly journals Digital Representations of Mathematical Objects in the Context of Various Forms of Representation of Mathematical Knowledge

2020 ◽  
pp. 58-86
Author(s):  
Semjon F. Adlaj ◽  
◽  
Sergey N. Pozdniakov ◽  
Keyword(s):  
Comparative Analysis ◽  
Digital Media ◽  
Mathematical Knowledge ◽  
Information Environment ◽  
Teaching Mathematics ◽  
Mathematical Concepts ◽  
Mathematical Objects ◽  
Computer Tools ◽  
Digital Representations ◽  
The Impact

This article is devoted to a comparative analysis of the results of the ReMath project (Representing Mathematics with digital media), devoted to the study of digital representations of mathematical concepts. The theoretical provisions and conclusions of this project will be analyzed based on the theory of the information environment [1], developed with the participation of one of the authors of this article. The analysis performed in this work partially coincides with the conclusions of the ReMath project, but uses a different research basis, based mainly on the work of Russian scientists. It is of interest to analyze the work of the ReMath project from the conceptual positions set forth in this monograph and to establish links between concepts and differences in understanding the impact of computer tools (artifacts) on the process of teaching mathematics. At the same time, the authors dispute the interpretation of some issues in Vygotsky’s works by foreign researchers and give their views on the types and functions of digital artifacts in teaching mathematics.

scholarly journals ДОСЛІДЖЕННЯ ЕНЕРГОЕФЕКТИВНОСТІ ОБЛАДНАННЯ ДЛЯ ЗМІШУВАННЯ СИПКИХ МАТЕРІАЛІВ

2019 ◽  
Vol 136 (4) ◽  
pp. 42-48
Author(s):  
О. П. Бурмістенков ◽  
Т. Я. Біла ◽  
В. В. Стаценко
Keyword(s):  
Mathematical Modeling ◽  
Comparative Analysis ◽  
Electric Drive ◽  
Bulk Materials ◽  
Energy Parameters ◽  
Motion Study ◽  
Theoretical Mechanics

The energy parameters determination of bulk materials mixing equipment. Methodology.  The  paper  used  methods  of  mathematical  modeling,  comparative  analysis  and research  of  electric  drive.  The  particles  motion  study  inside  the  mixer  was  performed  on  the  theoretical mechanics laws basis.

Comparative Analysis of Novikov and Involute Gearing in the ANSYS Workbench Software Package

2021 ◽  
pp. 16-21
Author(s):  
S.I. Karatushin ◽  
D.A. Khramova ◽  
N.A. Bildyuk
Keyword(s):  
Heat Treatment ◽  
Comparative Analysis ◽  
Software Package ◽  
Strain State ◽  
Gear Ratio ◽  
Geometric Parameters ◽  
Chemical Heat Treatment ◽  
Chemical Heat ◽  
Additional Hardening ◽  
Ansys Workbench

The paper introduces the results of studying the stress-strain state of the Novikov gearing in comparison with the involute gearing, similar in geometric parameters. In both versions, the wheel and gear are selected in size and gear ratio in accordance with the most common recommendations without additional hardening by chemical heat treatment. The zone of multiple contact of mated profiles is analyzed: changes in the geometry of contacts, pressure in the contact and stresses in various phases of gearing.

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