parisa mousavi; Alireza Salehan; Reza Yousefi Zenouza
Abstract
Over the last years, extensive research has been done in the field of blockchain technology and there are a growing number of areas to which blockchain is being applied, creating broad knowledge in this field. Classifying the subfields and identifying new topics and research trends in the area of blockchain ...
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Over the last years, extensive research has been done in the field of blockchain technology and there are a growing number of areas to which blockchain is being applied, creating broad knowledge in this field. Classifying the subfields and identifying new topics and research trends in the area of blockchain would be of significant help to researchers. The present study aims to review and categorize studies on blockchain technology, identify subfields, and achieve a coherent view of its research process. using bibliometric analyses. The data used in this research has been collected from 423 articles in the Scopus database. Then, the bibliographic coupling analysis and keyword co-occurrence have been performed.According to the findings of this study, researches on blockchain technology are divided into 5 clusters: 1. Computer systems, 2. Financial sciences, 3. Smart contracts, 4. Data management and authentication, and 5. Electronic cash. In recent years, topics such as machine learning, trust, deep learning, risk assessment, edge computing, Ethereum, and consensus have drawn the attention of the research community. This research provides a comprehensive classification of the main concepts and topics discussed in blockchain-related research, designated to help researchers in this field choose a line of research.
Mohammad Lagzian; parisa mousavi
Abstract
Information security is an extremely important aspect of information systems. A lot of research has been done in the field of technological security of information, but with the development of security needs, attention has been paid to the role of management in information security. Economic valuation ...
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Information security is an extremely important aspect of information systems. A lot of research has been done in the field of technological security of information, but with the development of security needs, attention has been paid to the role of management in information security. Economic valuation of investment in the information security of organizations is one of the issues of management in this field. In this research, to examine the issue of evaluating investment in information security and finding suitable methods for it, a systematic review of the approaches in information security investment has been done. Other goals of this study are to study the evolution of approaches used in the years 2006 to 2017. In order to carry out this systematic review of all studies in the field of information security investment using the research keywords, extracted Springer, IEEE-Explore, Web of Science, Science Direct databases, ultimately 146 articles related to This topic have been investigated. The research findings identified eight main approaches (game theory, risk-based approach, decision support systems, Utility maximization, rate of return on investment, Net Present Value, expected utility theory, real options theory). According to the results of this research there has been more interested in using game theory in recent years.
