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1000 tulosta hakusanalla Mikhail Gorbachev

Comparative Analysis of Deterministic and Nondeterministic Decision Trees

Comparative Analysis of Deterministic and Nondeterministic Decision Trees

Mikhail Moshkov

Springer Nature Switzerland AG
2020
sidottu
This book compares four parameters of problems in arbitrary information systems: complexity of problem representation and complexity of deterministic, nondeterministic, and strongly nondeterministic decision trees for problem solving. Deterministic decision trees are widely used as classifiers, as a means of knowledge representation, and as algorithms. Nondeterministic (strongly nondeterministic) decision trees can be interpreted as systems of true decision rules that cover all objects (objects from one decision class). This book develops tools for the study of decision trees, including bounds on complexity and algorithms for construction of decision trees for decision tables with many-valued decisions. It considers two approaches to the investigation of decision trees for problems in information systems: local, when decision trees can use only attributes from the problem representation; and global, when decision trees can use arbitrary attributes from the information system. For both approaches, it describes all possible types of relationships among the four parameters considered and discusses the algorithmic problems related to decision tree optimization. The results presented are useful for researchers who apply decision trees and rules to algorithm design and to data analysis, especially those working in rough set theory, test theory and logical analysis of data. This book can also be used as the basis for graduate courses.
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Comparative Analysis of Deterministic and Nondeterministic Decision Trees

Comparative Analysis of Deterministic and Nondeterministic Decision Trees

Mikhail Moshkov

Springer Nature Switzerland AG
2021
nidottu
This book compares four parameters of problems in arbitrary information systems: complexity of problem representation and complexity of deterministic, nondeterministic, and strongly nondeterministic decision trees for problem solving. Deterministic decision trees are widely used as classifiers, as a means of knowledge representation, and as algorithms. Nondeterministic (strongly nondeterministic) decision trees can be interpreted as systems of true decision rules that cover all objects (objects from one decision class). This book develops tools for the study of decision trees, including bounds on complexity and algorithms for construction of decision trees for decision tables with many-valued decisions. It considers two approaches to the investigation of decision trees for problems in information systems: local, when decision trees can use only attributes from the problem representation; and global, when decision trees can use arbitrary attributes from the information system. For both approaches, it describes all possible types of relationships among the four parameters considered and discusses the algorithmic problems related to decision tree optimization. The results presented are useful for researchers who apply decision trees and rules to algorithm design and to data analysis, especially those working in rough set theory, test theory and logical analysis of data. This book can also be used as the basis for graduate courses.
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Will We Ever Have a Quantum Computer?

Will We Ever Have a Quantum Computer?

Mikhail I. Dyakonov

Springer Nature Switzerland AG
2020
nidottu
This book addresses a broad community of physicists, engineers, computer scientists and industry professionals, as well as the general public, who are aware of the unprecedented media hype surrounding the supposedly imminent new era of quantum computing. The central argument of this book is that the feasibility of quantum computing in the physical world is extremely doubtful. The hypothetical quantum computer is not simply a quantum variant of the conventional digital computer, but rather a quantum extension of a classical analog computer operating with continuous parameters. In order to have a useful machine, the number of continuous parameters to control would have to be of such an astronomically large magnitude as to render the endeavor virtually infeasible. This viewpoint is based on the author’s expert understanding of the gargantuan challenges that would have to be overcome to ever make quantum computing a reality. Knowledge of secondary-school-level physics and math will be sufficient for understanding most of the text.
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Methodology of Complex Activity

Methodology of Complex Activity

Mikhail V. Belov; Dmitry A. Novikov

Springer Nature Switzerland AG
2020
sidottu
This book develops and describes a general methodology that can be applied to any complex human activity (activity with a non-trivial, multi-level internal structure).The structural components of complex activities are considered, and their logical, cause-and-effect, and process structures are functionally described. Considerable attention is paid to organization and management, uncertainties, and the lifecycles of activities, as well as the actors, subject matter, resources, knowledge, and methods involved. Several typical examples are used throughout the text to illustrate the implementation of common approaches involving the functioning of work groups, organizational units, projects, and organizations in general: a retail bank, an aircraft manufacturer, a fire department, and a nuclear power plant. In addition, the book employs a system of connected technical models, in order to ensure that the results are of practical applicability for both experts on the ground and scholars engaged in research on the general principles of how activities (practical, scientific, etc.) are organized or on the management of socio-technical systems.
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Methodology of Complex Activity

Methodology of Complex Activity

Mikhail V. Belov; Dmitry A. Novikov

Springer Nature Switzerland AG
2021
nidottu
This book develops and describes a general methodology that can be applied to any complex human activity (activity with a non-trivial, multi-level internal structure).The structural components of complex activities are considered, and their logical, cause-and-effect, and process structures are functionally described. Considerable attention is paid to organization and management, uncertainties, and the lifecycles of activities, as well as the actors, subject matter, resources, knowledge, and methods involved. Several typical examples are used throughout the text to illustrate the implementation of common approaches involving the functioning of work groups, organizational units, projects, and organizations in general: a retail bank, an aircraft manufacturer, a fire department, and a nuclear power plant. In addition, the book employs a system of connected technical models, in order to ensure that the results are of practical applicability for both experts on the ground and scholars engaged in research on the general principles of how activities (practical, scientific, etc.) are organized or on the management of socio-technical systems.
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Ferroalloys

Ferroalloys

Mikhail Gasik; Viktor Dashevskii; Aitber Bizhanov

Springer Nature Switzerland AG
2020
sidottu
This book outlines the physical and chemical foundations of high-temperature processes for producing silicon, manganese and chromium ferroalloys, alloys of molybdenum, vanadium, titanium, alkaline earth and rare earth metals, niobium, zirconium, aluminum, boron, nickel, cobalt, phosphorus, selenium and tellurium, iron-carbon alloys by carbon, silicone and aluminothermic methods. The chapters introduce the industrial production technologies of these groups of ferroalloys, the characteristics of charge materials, and the technological parameters of the melting processes. A description of ferroalloy furnaces is given in detail. Topics such as waste recycling, fines agglomeration technologies, and environmental issues are considered.
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Ferroalloys

Ferroalloys

Mikhail Gasik; Viktor Dashevskii; Aitber Bizhanov

Springer Nature Switzerland AG
2021
nidottu
This book outlines the physical and chemical foundations of high-temperature processes for producing silicon, manganese and chromium ferroalloys, alloys of molybdenum, vanadium, titanium, alkaline earth and rare earth metals, niobium, zirconium, aluminum, boron, nickel, cobalt, phosphorus, selenium and tellurium, iron-carbon alloys by carbon, silicone and aluminothermic methods. The chapters introduce the industrial production technologies of these groups of ferroalloys, the characteristics of charge materials, and the technological parameters of the melting processes. A description of ferroalloy furnaces is given in detail. Topics such as waste recycling, fines agglomeration technologies, and environmental issues are considered.
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Combined Vibrator-Slot Structures: Theory and Applications

Combined Vibrator-Slot Structures: Theory and Applications

Mikhail V. Nesterenko; Victor A. Katrich; Yuriy M. Penkin; Sergey L. Berdnik; Oleksandr M. Dumin

Springer Nature Switzerland AG
2020
sidottu
The book presents solutions to a complex of internal and external problems of electromagnetics associated with the development of theory, construction of mathematical models and the development of rigorous methods for calculating the electrodynamic characteristics of combined vibrator-slot structures. The solutions of problems for determining the characteristics of impedance vibrator and slot radiators with arbitrary geometric and electrophysical parameters presented in the monograph were obtained within the framework of the unified methodological approach to construct asymptotic solutions of integral equations on currents and their systems. This approach made it possible to study a number of new combined vibrator-slot structures. The research results reveal the possibilities of using such structures as basic elements in the creation of modern antenna-waveguide devices operating in the ranges from meter to millimeter wavelengths, with new technical characteristics and functional purpose. The book is intended for senior and postgraduate students and researchers working in the fields of radiophysics, radio engineering and antenna-feeder design.The book covers the following topics:• excitation of electromagnetic waves in volumes with coordinate boundaries;• general issues of the theory of thin impedance vibrators and narrow slots in a spatial-frequency representation;• solution of current equations for isolated vibrator and slot scatterers;• combined radiating vibrator-slot structures in rectangular waveguide;• T-junctions of rectangular waveguides with vibrator-slot structures in coupling areas;• waveguide radiation of the combined vibrator-slot structures;• combined vibrator-slot structures located on a perfectly conducting sphere;• combined vibrator-slot Radiators in antenna arrays;• ultrawideband vibrator-slot structures;
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Combined Vibrator-Slot Structures: Theory and Applications

Combined Vibrator-Slot Structures: Theory and Applications

Mikhail V. Nesterenko; Victor A. Katrich; Yuriy M. Penkin; Sergey L. Berdnik; Oleksandr M. Dumin

Springer Nature Switzerland AG
2021
nidottu
The book presents solutions to a complex of internal and external problems of electromagnetics associated with the development of theory, construction of mathematical models and the development of rigorous methods for calculating the electrodynamic characteristics of combined vibrator-slot structures. The solutions of problems for determining the characteristics of impedance vibrator and slot radiators with arbitrary geometric and electrophysical parameters presented in the monograph were obtained within the framework of the unified methodological approach to construct asymptotic solutions of integral equations on currents and their systems. This approach made it possible to study a number of new combined vibrator-slot structures. The research results reveal the possibilities of using such structures as basic elements in the creation of modern antenna-waveguide devices operating in the ranges from meter to millimeter wavelengths, with new technical characteristics and functional purpose. The book is intended for senior and postgraduate students and researchers working in the fields of radiophysics, radio engineering and antenna-feeder design.The book covers the following topics:• excitation of electromagnetic waves in volumes with coordinate boundaries;• general issues of the theory of thin impedance vibrators and narrow slots in a spatial-frequency representation;• solution of current equations for isolated vibrator and slot scatterers;• combined radiating vibrator-slot structures in rectangular waveguide;• T-junctions of rectangular waveguides with vibrator-slot structures in coupling areas;• waveguide radiation of the combined vibrator-slot structures;• combined vibrator-slot structures located on a perfectly conducting sphere;• combined vibrator-slot Radiators in antenna arrays;• ultrawideband vibrator-slot structures;
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Technical Means for Underwater Archaeology

Technical Means for Underwater Archaeology

Mikhail Klyuev; Anatoly Schreider; Igor Rakitin

Springer International Publishing AG
2023
sidottu
The book discusses various aspects of the technical support of underwater archaeological research in marine and freshwater areas. This book considers the relevance, specificity, and artifacts of underwater archaeological research, stating the factors of flooding of archaeological artifacts. The authors describe the basic equipment for underwater work, as well as the equipment for remote study of the bottom and underwater archaeological research. This book presents the usage of instrumentation in underwater archaeology. Case studies included in this book correspond to the flooded ancient Greek cities of Fanagoria and Patraeus in the Taman Bay of the Black Sea, flooded Neolithic settlements on Lake Sennitsa in the Pskov region of Russia, sunken ships in the north of the Black Sea and sunken liner “Titanic” in the Atlantic Ocean. The book is intended for students, graduate students and archaeologists who are interested in the specifics of underwater archaeological research and are planning to conduct it.
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Technical Means for Underwater Archaeology

Technical Means for Underwater Archaeology

Mikhail Klyuev; Anatoly Schreider; Igor Rakitin

Springer International Publishing AG
2024
nidottu
The book discusses various aspects of the technical support of underwater archaeological research in marine and freshwater areas. This book considers the relevance, specificity, and artifacts of underwater archaeological research, stating the factors of flooding of archaeological artifacts. The authors describe the basic equipment for underwater work, as well as the equipment for remote study of the bottom and underwater archaeological research. This book presents the usage of instrumentation in underwater archaeology. Case studies included in this book correspond to the flooded ancient Greek cities of Fanagoria and Patraeus in the Taman Bay of the Black Sea, flooded Neolithic settlements on Lake Sennitsa in the Pskov region of Russia, sunken ships in the north of the Black Sea and sunken liner “Titanic” in the Atlantic Ocean. The book is intended for students, graduate students and archaeologists who are interested in the specifics of underwater archaeological research and are planning to conduct it.
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Shelf Fluvial Paleo Structures: Seabed Seismic Acoustic View

Shelf Fluvial Paleo Structures: Seabed Seismic Acoustic View

Mikhail Klyuev; Anatoly Schreider; Alexey Zverev

Springer International Publishing AG
2023
sidottu
The book considers the riverine paleo structures of the coastal marine zone from the point of view of marine bottom seismic acoustics. The authors describe the mechanisms of the origin and features of riverine paleo structures in the coastal marine area. The methods applied for this kind of research have been developed and explained comprehensively, including geomorphology and interpretation of seismic acoustic facies. Besides, the authors also propose a classification of morphological features, signs and technology of recognition, as well as methods for mapping of coastal river facies supported by an extensive list of literary sources is given. The book will be of interest to marine geophysicists, marine geologists, and those interested in new methods to approach marine problems worldwide.
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Shelf Fluvial Paleo Structures: Seabed Seismic Acoustic View

Shelf Fluvial Paleo Structures: Seabed Seismic Acoustic View

Mikhail Klyuev; Anatoly Schreider; Alexey Zverev

Springer International Publishing AG
2024
nidottu
The book considers the riverine paleo structures of the coastal marine zone from the point of view of marine bottom seismic acoustics. The authors describe the mechanisms of the origin and features of riverine paleo structures in the coastal marine area. The methods applied for this kind of research have been developed and explained comprehensively, including geomorphology and interpretation of seismic acoustic facies. Besides, the authors also propose a classification of morphological features, signs and technology of recognition, as well as methods for mapping of coastal river facies supported by an extensive list of literary sources is given. The book will be of interest to marine geophysicists, marine geologists, and those interested in new methods to approach marine problems worldwide.
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Oblique Derivative Problems for Elliptic Equations in Conical Domains

Oblique Derivative Problems for Elliptic Equations in Conical Domains

Mikhail Borsuk

BIRKHAUSER VERLAG AG
2023
nidottu
The aim of our book is the investigation of the behavior of strong and weak solutions to the regular oblique derivative problems for second order elliptic equations, linear and quasi-linear, in the neighborhood of the boundary singularities. The main goal is to establish the precise exponent of the solution decrease rate and under the best possible conditions. The question on the behavior of solutions of elliptic boundary value problems near boundary singularities is of great importance for its many applications, e.g., in hydrodynamics, aerodynamics, fracture mechanics, in the geodesy etc. Only few works are devoted to the regular oblique derivative problems for second order elliptic equations in non-smooth domains. All results are given with complete proofs. The monograph will be of interest to graduate students and specialists in elliptic boundary value problems and their applications.
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The Steady Navier-Stokes System

The Steady Navier-Stokes System

Mikhail Korobkov; Konstantin Pileckas; Remigio Russo

BIRKHAUSER VERLAG AG
2024
sidottu
This book provides a successful solution to one of the central problems of mathematical fluid mechanics: the Leray’s problem on existence of a solution to the boundary value problem for the stationary Navier—Stokes system in bounded domains under sole condition of zero total flux. This marks the culmination of the authors' work over the past few years on this under-explored topic within the study of the Navier—Stokes equations. This book will be the first major work on the Navier—Stokes equations to explore Leray’s problem in detail. The results are presented with detailed proofs, as are the history of the problem and the previous approaches to finding a solution to it. In addition, for the reader’s convenience and for the self-sufficiency of the text, the foundations of the mathematical theory for incompressible fluid flows described by the steady state Stokes and Navier—Stokes systems are presented. For researchers in this active area, this book will be a valuable resource.
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The Steady Navier-Stokes System

The Steady Navier-Stokes System

Mikhail Korobkov; Konstantin Pileckas; Remigio Russo

BIRKHAUSER VERLAG AG
2025
nidottu
This book provides a successful solution to one of the central problems of mathematical fluid mechanics: the Leray’s problem on existence of a solution to the boundary value problem for the stationary Navier—Stokes system in bounded domains under sole condition of zero total flux. This marks the culmination of the authors' work over the past few years on this under-explored topic within the study of the Navier—Stokes equations. This book will be the first major work on the Navier—Stokes equations to explore Leray’s problem in detail. The results are presented with detailed proofs, as are the history of the problem and the previous approaches to finding a solution to it. In addition, for the reader’s convenience and for the self-sufficiency of the text, the foundations of the mathematical theory for incompressible fluid flows described by the steady state Stokes and Navier—Stokes systems are presented. For researchers in this active area, this book will be a valuable resource.
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Interface Problems for Elliptic Second-Order Equations in Non-Smooth Domains

Interface Problems for Elliptic Second-Order Equations in Non-Smooth Domains

Mikhail Borsuk

BIRKHAUSER VERLAG AG
2024
nidottu
The goal of this book is to investigate the behavior of weak solutions to the elliptic interface problem in a neighborhood of boundary singularities: angular and conic points or edges. This problem is considered both for linear and quasi-linear equations, which are among the less studied varieties. As a second edition of Transmission Problems for Elliptic Second-Order Equations for Non-Smooth Domains (Birkhäuser, 2010), this volume includes two entirely new chapters: one about the oblique derivative problems for the perturbed p(x)-Laplacian equation in a bounded n-dimensional cone, and another about the existence of bounded weak solutions. Researchers and advanced graduate students will appreciate this compact compilation of new material in the field.
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Vibrator and Slot Antenna Arrays for Modern Applications

Vibrator and Slot Antenna Arrays for Modern Applications

Mikhail V. Nesterenko; Victor A. Katrich; Sergey L. Berdnik; Oleksandr M. Dumin; Anatoliy I. Luchaninov; Dmitriy V. Gretskih

Springer International Publishing AG
2024
sidottu
This book provides solutions to a complex of internal and external problems of electromagnetics associated with the development of theory, construction of mathematical models and the development of rigorous methods for calculating the electrodynamic characteristics of radiating structures and antenna arrays with impedance vibrator and slot elements. The issues related to the impedance synthesis of antenna arrays and analysis of large-aperture rectenna arrays are considered. Solutions to the problems of determining the electrodynamic characteristics of impedance vibrators, slot and multi-element radiators with arbitrary geometric and electrophysical parameters are obtained within the framework of a unified methodological approach to constructing asymptotic solutions of integral equations for currents. This approach made it possible to study a number of new vibrator, slotted, and combined vibrator-slotted structures and their multi-element systems. The original research results reveal the possibilities of using such structures as basic elements for creating modern antenna-waveguide devices operating in the range from meter to millimeter wavelengths which have new technical characteristics and functionalities. This book is intended for senior and postgraduate students and researchers working in the fields of radiophysics, radio engineering and antenna-feeder design. The book covers the following topics: Excitation of Electromagnetic Fields in Electrodynamic Volumes with Coordinate BoundariesGeneral Aspects of the Theory of Thin Impedance Vibrators and Narrow Slots in a Quasi-One-Dimensional ApproximationImpedance Vibrators Antenna ArraysSlotted Waveguide Antenna ArraysCombined Vibrator-Slot Antenna ArraysImpedance Synthesis for Vibrator Antenna ArraysImpedance Synthesis for Slot Antenna ArraysLarge-Aperture Rectenna Arrays of Wireless Power Transmission SystemsUltrawideband Combined Vibrator-Slot Antenna Arrays
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Computation Trees

Computation Trees

Mikhail Moshkov

Springer International Publishing AG
2025
sidottu
This book is devoted to the study of deterministic and nondeterministic computation trees. Computation trees are a natural generalization of decision trees: in addition to the one-place predicate-type operations (attributes) used in decision trees, computation trees can use multi-place predicate and function operations. They arise both where we deal with algorithms for solving problems of combinatorial optimization, computational geometry, etc., and where we solve classification or prediction problems, especially if we use combinations of input variables as attributes. This book mainly studies the complexity of computation trees and also examines related optimization problems. The results discussed in this book may be useful to researchers studying algorithms and using algorithm models similar to computation trees. These results may also be useful to researchers working with decision trees and decision rule systems in data analysis, particularly, in rough set theory, logical analysis of data, and test theory. The book is also used to create graduate courses.
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Tensor Algebra and Tensor Analysis for Engineers

Tensor Algebra and Tensor Analysis for Engineers

Mikhail Itskov

Springer International Publishing AG
2025
sidottu
This is the sixth and revised edition of a well-received textbook that aims at bridging the gap between the engineering course of tensor algebra on the one hand and the mathematical course of classical linear algebra on the other hand. In accordance with the contemporary way of scientific publication, a modern absolute tensor notation is preferred throughout. The book provides a comprehensible exposition of the fundamental mathematical concepts of tensor calculus and enriches the presented material with many illustrative examples. In particular, the book discusses such multi-physical topics of solid mechanics as electro- and magnetoelasticity. In addition, advanced chapters dealing with recent developments in the theory of isotropic and anisotropic tensor functions and their applications to continuum mechanics are included. This new edition also focuses on numerical aspects of tensor calculus and shows how modern methods of machine learning can be applied to the calculation of tensor functions. Hence, these textbook addresses graduate students as well as scientists working in this field and in particular dealing with interdisciplinary problems. In each chapter numerous exercises are included, allowing for self-study and intense practice. Solutions to the exercises are also provided.
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