scholarly journals COMPARATIVE ANALYSIS OF COMPACT METHODS REPRESENTATIONS OF GRAPHIC INFORMATION

2021 ◽  
Vol 1 (37) ◽  
pp. 130-143
Author(s):  
O. Gertsiy
Keyword(s):  
Comparative Analysis ◽  
Communication Systems ◽  
Video Data ◽  
Transport Infrastructure ◽  
Practical Significance ◽  
Jpeg 2000 ◽  
Advantages And Disadvantages ◽  
Graphic Information ◽  
The Cost ◽  
And Storage

The main characteristics of graphic information compression methods with losses and without losses (RLE, LZW, Huffman's method, DEFLATE, JBIG, JPEG, JPEG 2000, Lossless JPEG, fractal and Wawelet) are analyzed in the article. Effective transmission and storage of images in railway communication systems is an important task now. Because large images require large storage resources. This task has become very important in recent years, as the problems of information transmission by telecommunication channels of the transport infrastructure have become urgent. There is also a great need for video conferencing, where the task is to effectively compress video data - because the greater the amount of data, the greater the cost of transmitting information, respectively. Therefore, the use of image compression methods that reduce the file size is the solution to this task. The study highlights the advantages and disadvantages of compression methods. The comparative analysis the basic possibilities of compression methods of graphic information is carried out. The relevance lies in the efficient transfer and storage of graphical information, as big data requires large resources for storage. The practical significance lies in solving the problem of effectively reducing the data size by applying known compression methods.

Security Enhancement of Peer-to-Peer Session Initiation

2012 ◽  
pp. 281-308
Author(s):  
Xianghan Zheng ◽  
Vladimir Oleshchuk
Keyword(s):  
Communication System ◽  
Communication Systems ◽  
Hash Table ◽  
Peer To Peer ◽  
Distributed Hash Table ◽  
Peer Communication ◽  
Security Issues ◽  
Security Enhancement ◽  
Advantages And Disadvantages ◽  
The Cost

Today, Peer-to-Peer SIP based communication systems have attracted much attention from both the academia and industry. The decentralized nature of P2P might provide the distributed peer-to-peer communication system without help of the traditional SIP server. However, the decentralization features come to the cost of the reduced manageability and create new concerns. Until now, the main focus of research was on the availability of the network and systems, while few attempts are put on protecting privacy. In this chapter, we investigate on P2PSIP security issues and introduce two enhancement solutions: central based security and distributed trust security, both of which have their own advantages and disadvantages. After that, we study appropriate combination of these two approaches to get optimized protection. Our design is independent of the DHT (Distributed Hash Table) overlay technology. We take the Chord overlay as the example, and then, analyze the system in several aspects: security & privacy, number-of the hops, message flows, etc.

Block-Based Motion Estimation

2021 ◽  
pp. 651-676
Author(s):  
Shaifali Madan Arora ◽  
Kavita Khanna
Keyword(s):  
Video Coding ◽  
Resource Utilization ◽  
Video Compression ◽  
Visual Information ◽  
Video Data ◽  
Technological Evolution ◽  
High Bandwidth ◽  
Block Based ◽  
The Cost ◽  
And Storage

Recent years have witnessed a great technological evolution in video display and capturing technologies leading to the development of new standards of video coding including MPEG-X, H.26X and HEVC. The cost of computations, storage and high bandwidth requirements makes a video data expensive in terms of transmission and storage. This makes video compression absolutely necessary prior to its transmission in order to accommodate for different transmission media's capabilities. Digital video compression technologies therefore have become an important part of the way we create, present, communicate and use visual information. The main aim behind a video compression system is to eliminate the redundancies from a raw video signal. The tradeoff involved in the process of video compression is between the speed, quality and resource utilization. The current chapter explores the techniques, challenges, issues and problems in video compression in detail along with the major advancements in the field.

scholarly journals Dynamic Picking and Storage Optimization of Robotic Picking Systems

2021 ◽  
Author(s):  
Cheng Chi ◽  
Shasha Wu ◽  
Delong Xia ◽  
Yaohua Wu
Keyword(s):  
Practical Significance ◽  
Storage Allocation ◽  
Allocation Model ◽  
Dynamic Storage Allocation ◽  
System A ◽  
Additional Equipment ◽  
Picking Systems ◽  
Dynamic Storage ◽  
The Cost ◽  
And Storage

Abstract With the development of e-commerce and the improvement of logistics requirements, more and more ‘parts-to-picker’ picking systems begin to replace the inefficient ‘picker-to-parts’ picking systems in various scenarios. As the mainstream ‘parts-to-picker’ system, the robotic mobile fulfillment system has been attracting much attention in recent years. In addition to the customer's changing requirements, the rapid response of the picking system to the order is particularly important. In the above context, to seek a breakthrough in the picking system's picking efficiency without increasing the cost of additional equipment, the storage allocation of the pods becomes very important. This article focuses on the dynamic storage allocation of robotic mobile fulfillment system, which has positive theoretical and practical significance. By analyzing the pod storage process of the robotic mobile fulfillment system, a dynamic pod storage allocation model suitable for the robotic mobile fulfillment system is established with the goal of minimizing the pod handling distance. Two dynamic pod storage allocation strategies are proposed for the system. By simulating the picking systems of different scales, the effectiveness of the dynamic storage allocation strategy is verified, which has a certain reference to the operation of the robotic mobile fulfillment system in practice.

Block-Based Motion Estimation

2017 ◽  
pp. 51-76
Author(s):  
Shaifali Madan Arora ◽  
Kavita Khanna
Keyword(s):  
Video Coding ◽  
Resource Utilization ◽  
Video Compression ◽  
Visual Information ◽  
Video Data ◽  
Technological Evolution ◽  
High Bandwidth ◽  
Block Based ◽  
The Cost ◽  
And Storage

Recent years have witnessed a great technological evolution in video display and capturing technologies leading to the development of new standards of video coding including MPEG-X, H.26X and HEVC. The cost of computations, storage and high bandwidth requirements makes a video data expensive in terms of transmission and storage. This makes video compression absolutely necessary prior to its transmission in order to accommodate for different transmission media's capabilities. Digital video compression technologies therefore have become an important part of the way we create, present, communicate and use visual information. The main aim behind a video compression system is to eliminate the redundancies from a raw video signal. The tradeoff involved in the process of video compression is between the speed, quality and resource utilization. The current chapter explores the techniques, challenges, issues and problems in video compression in detail along with the major advancements in the field.

A typology of digital platforms of interfirm interaction

2020 ◽  
Vol 19 (7) ◽  
pp. 1231-1248
Author(s):  
E.V. Popov ◽  
V.L. Simonova ◽  
V.V. Grishina
Keyword(s):  
Sustainable Development ◽  
Comparative Analysis ◽  
Practical Significance ◽  
Digital Platforms ◽  
Digital Platform ◽  
Theoretical Significance ◽  
Definition Of ◽  
The Cost ◽  
Theoretical Apparatus

Subject. The article addresses economic interfirm interaction and processes that form digital platforms in the context of sustainable development of the society. Objectives. Our aim is to develop an original typology of digital platforms that provide intercompany interaction. Methods. The study rests on the system comparative analysis of prior research, taking into account our own findings. Results. We expanded the essence and substance of the definition of the digital platform in the field of interfirm interaction, defined new categories of types of digital platforms in the business by the level of integration and knowledge-intensity. We also considered parameters of the cost of implementation and the level of digitalization of interfirm interaction, generated a typology of digital platforms in interfirm interaction. Conclusions. The paper defines aspects of further research aimed at developing a methodology for calculating the digitalization coefficient of intercompany interaction. The theoretical significance of the research is in expanding the theoretical apparatus of digitalization of intercompany interaction. The practical significance of the results is in building a mechanism for evaluating the level of digitalization of intercompany interaction.

scholarly journals Introduction of Weight-In-Motion Control System as the component of the “smart” transport infrastructure

2019 ◽  
Vol 97 ◽  
pp. 01038
Author(s):  
Elena Vasilyeva
Keyword(s):  
Control Systems ◽  
Motion Control ◽  
Traffic Safety ◽  
Freight Transportation ◽  
Transport Infrastructure ◽  
Automated System ◽  
Advantages And Disadvantages ◽  
Regional Budget ◽  
The Cost ◽  
Additional Income

The purpose of the research is to estimate the opportunities of such “smart” technology as the automated systems of Wight-in-Motion control (weight-and-dimensional control in the highways), to promote the improvement of the situation with the freight transportation by motor transport. The methods of weight-and-dimensional monitoring are considered. Advantages and disadvantages of the automated system in comparison with the traditional one are revealed. The conclusion is drawn on the cost recovery and financial expediency of the projects of introduction of Wight-in-Motion control systems. Obtaining such economic, ecological and social results as the reduction of cases of excesses of admissible mass of freight, perfecting the logistic activity in our country, collecting additional income for the regional budget, the decrease in the destroying impact on highways, the decrease in the expenses on their repair as well as providing sources for financing of such repair, the decrease in ecological harm from driving of overweighted vehicles, the increase in traffic safety, the reduction of quantity of accidents and life losses, caused by driving of the overweighted vehicles are proved.

scholarly journals Ensuring information security in corporate communication systems

2021 ◽  
Vol 266 ◽  
pp. 09001
Author(s):  
K.V. Matrokhina ◽  
A.B. Makhovikov ◽  
E.N. Trofimets
Keyword(s):  
Information Security ◽  
Communication Systems ◽  
Information Transfer ◽  
Text Messages ◽  
Corporate Communication ◽  
Practical Significance ◽  
Ip Telephony ◽  
Voice Communication ◽  
Advantages And Disadvantages ◽  
Secure Information

The paper considers a secure information transfer protocol for corporate IP-telephony system. In the article are analized the advantages and disadvantages of the known protocols. A description of the process of establishing a connection, sending text messages and voice communication in the developed protocol is given. Its practical significance and expediency of use are described.

Parameters Of Technological Processes Reengineering

2020 ◽  
pp. 28-33
Keyword(s):  
Spatial Organization ◽  
Parametric Model ◽  
Practical Significance ◽  
Machine Time ◽  
Time Machine ◽  
Technological Processes ◽  
Technical Capability ◽  
Materials Used ◽  
The Cost ◽  
Qualitative Characteristics

The article is devoted to reengineering of technological processes - a method of their qualitative transformation on an innovative basis, which in turn assumes the availability of tools that make it possible to establish the economic efficiency and technical capability of such transformations of construction production, to identify the effect of their implementation. In this regard, the problem of forming a parametric model of reengineering of construction technological processes, which involves four enlarged groups of indicators that reflect the quantitative and qualitative characteristics of the processes: materials used, working time, machine time, spatial organization, is considered. It is established that parameters can have either an absolute (physical, cost) or relative (point, percentage) expression and also make their own decomposition. The practical significance of the provisions given in the article is determined by the development of methods of technical rationing, which leads to a reduction in the cost and duration of construction.

Agrarian receipts as a tool for the structural transformation of financial and credit relations in the agrarian business of the region

2019 ◽  
pp. 40-53
Author(s):  
Yuliia Nehoda
Keyword(s):  
Comparative Analysis ◽  
Retrospective Analysis ◽  
Structural Transformation ◽  
Pilot Project ◽  
Bank Lending ◽  
Economic Benefits ◽  
Advantages And Disadvantages ◽  
New Instrument ◽  
Agricultural Business ◽  
Business Entities

The subject of the research – is a set of organizational-economic relations arising in the process of structural transformation of financial and credit relations in the agricultural business. The purpose of the article is a retrospective analysis of structural transformations of financial and credit relations in the agricultural business, evaluation of the effectiveness and feasibility of the introduction of agricultural receipts as a new instrument of lending to the agricultural business of the regions. Methodology of work – system-structural and comparative analyzes (to determine the effectiveness of the crediting mechanism according to the agricultural receipts of the farmers of the region); monographic (when studying the problems of the functioning of the mechanism of lending to agrarians by agrarian receipts) economic analysis (when carrying out a comparative analysis of the mechanism of classical bank lending to the agrarian business and the mechanism of lending to agrarians according to agrarian receipts); modeling and forecasting (when determining ways to overcome the existing deficiencies in the mechanism of lending to agrarian business entities of the region according to agrarian receipts). The results of the work – a retrospective analysis of the structural transformation of financial and credit relations in the agricultural business was carried out. The mechanism of crediting agrarians according to agrarian receipts and the scale of its distribution in the agrarian business of the region are considered. A comparative analysis of the mechanism of classical bank lending to the agrarian business and the mechanism of lending to agrarians according to agrarian receipts was carried out. In the framework of the pilot project “Agrarian receipts in Ukraine” of the international financial corporation (IFC) in partnership with the Swiss Confederation in Ukraine, the example of the Poltava region defined the effectiveness of the crediting mechanism according to the agrarian receipts of the agrarians of the region. The advantages and disadvantages of the mechanism of crediting the subjects of the agrarian business on agrarian receipts are noted. The ways to overcome the existing shortcomings of the mechanism of crediting the subjects of the agrarian business of the region according to agricultural receipts are determined. Conclusions – according to the results of the conducted research, the effectiveness of the mechanism of lending to the agricultural business of the regions according to agricultural receipts was proved, its advantages and disadvantages were noted, and attention was also focused. Proposed in Art. 7 of Law No. 5479-VI clearly delineate cases and restrictions on the debtor’s reimbursement of expenses incurred by the lender with the acquisition of the right to grow and harvest the pledged crop of agricultural products, which will ensure the principle of equality of parties on economic benefits and distribution of credit risks according to agricultural receipts.

Developing the adaptive process-based budgeting through TD-ABC and TD-ABB as part of strategic management accounting

2020 ◽  
Vol 23 (10) ◽  
pp. 1182-1194
Author(s):  
A.A. Akhmetzyanov ◽  
A.Yu. Sokolov
Keyword(s):  
Strategic Management ◽  
Cost Allocation ◽  
Management Accounting ◽  
Practical Significance ◽  
Common Time ◽  
Strategic Management Accounting ◽  
Scientific Papers ◽  
The Subject ◽  
The Common ◽  
The Cost

Subject. The article focuses on the advanced time-driven tools for allocating overhead expenses, which are based on process-based budgeting. Objectives. We articulate a technique for cost allocation so as to assess the cost of each process with reference to the common time driver. Methods. The study relies upon methods of systematization, classification, analogy and comparison, and summarizes the scientific literature on the subject. Results. The article presents our own suggestions on implementing TD-ABC and TD-ABB into the strategic management accounting process of developer companies. The principles were proved to help more effectively allocate overhead expenses and assess the capacity load of each process performed by functions, departments and employees. Carrying out a comparative analysis, we found certain reserves for utilizing resources more effectively. Conclusions and Relevance. The findings are of scientific and practical significance and can be used by developer and construction businesses. The conclusions can prove helpful for scientific papers, student books, and further research.

Sign in / Sign up

Export Citation Format

Share Document