Physical layer authentication using ensemble learning technique in wireless communications

Cyber-physical wireless systems have surfaced as an important data communication and networking research area. It is an emerging discipline that allows effective monitoring and efficient real-time communication between the cyber and physical worlds by embedding computer software and integrating communication and networking technologies. Due to their high reliability, sensitivity and connectivity, their security requirements are more comparable to the Internet as they are prone to various security threats such as eavesdropping, spoofing, botnets, man-in-the-middle attack, denial of service (DoS) and distributed denial of service (DDoS) and impersonation. Existing methods use physical layer authentication (PLA), the most promising solution to detect cyber-attacks. Still, the cyber-physical systems (CPS) have relatively large computational requirements and require more communication resources, thus making it impossible to achieve a low latency target. These methods perform well but only in stationary scenarios. We have extracted the relevant features from the channel matrices using discrete wavelet transformation to improve the computational time required for data processing by considering mobile scenarios. The features are fed to ensemble learning algorithms, such as AdaBoost, LogitBoost and Gentle Boost, to classify data. The authentication of the received signal is considered a binary classification problem. The transmitted data is labeled as legitimate information, and spoofing data is illegitimate information. Therefore, this paper proposes a threshold-free PLA approach that uses machine learning algorithms to protect critical data from spoofing attacks. It detects the malicious data packets in stationary scenarios and detects them with high accuracy when receivers are mobile. The proposed model achieves better performance than the existing approaches in terms of accuracy and computational time by decreasing the processing time

Semantic discovery and reuse of business process patterns

Patterns currently play an important role in modern information systems (IS) development and their use has mainly been restricted to the design and implementation phases of the development lifecycle. Given the increasing significance of business modelling in IS development, patterns have the potential of providing a viable solution for promoting reusability of recurrent generalized models in the very early stages of development. As a statement of research-in-progress this paper focuses on business process patterns and proposes an initial methodological framework for the discovery and reuse of business process patterns within the IS development lifecycle. The framework borrows ideas from the domain engineering literature and proposes the use of semantics to drive both the discovery of patterns as well as their reuse

Focus: Implementing participation - Advancement of social services in analog and digital spaces

Digitale Informations- und Kommunikationstechnologien gewinnen als fester Bestandteil zunehmend Bedeutung in den alltäglichen Lebenswelten einer wachsenden Zahl von Menschen. Ihre Entwicklung und selbstverständliche Nutzung schreiten in einem immer rasanteren Tempo voran; die vielfältigen Anwendungsmöglichkeiten adressieren längst alle Lebensbereiche. Während der Digitalisierung von Kommunikationsprozessen zuweilen demokratisierende Kräfte zugesprochen werden, scheint eine kritische Reflexion möglicher Potentiale und Auswirkungen digitaler Informations- und Kommunikationstechnologien auf Teilhabedynamiken in unterschiedlichen Lebensbereichen dringend erforderlich. Die Autorinnen und Autoren möchten mit dieser SI:SO-Schwerpunktausgabe einen Beitrag zu einer kritischen Reflexion digitaler Innovationen und ihrer Auswirkungen auf die zukünftige Gestaltung sozialer Dienste leisten. Mit der zweisprachigen Ausgabe ist zudem die Hoffnung verbunden, diesen Beitrag auch einem europäischen und weltweiten Publikum zugänglich zu machen.Digital information and communications technologies are becoming an increasingly important part in everyday life of a growing number of people. Their development and natural use are progressing even faster with a wide range of possible applications addressing all areas of life. While the digitization of communication processes is sometimes said to have democratizing forces, critical reflection on the potential and impact of digital information and communication technologies on participation dynamics in different areas of life seems urgently needed. The Authors would like to contribute to a critical reflection on digital innovations and their impact on the future design of social services. The bilingual edition further aims to make this contribution accessible to a European and global audience

Reform of the public healthcare system in Ukraine: problems and perspectives

1. The development of a public health system in Ukraine is possible only through the implementation and adoption of the relevant Law, as well as the introduction of the basic approach Health in All Policies. 2. It is necessary to prepare a comparable to Health in All Policies National Plan for the Development of Staffing System of the Public Health Care Sector for interdisciplinary and cross-sectoral purposes and for determining the real and possible needs of specialists of different qualifications and educational levels. 3. It is compulsory to learn from valuable European and international experience; then develop and approve educational programs and standards in the sector of public health in order to provide three education levels bachelor's (first cycle), master's (second cycle) and doctoral (third cycle) and continuous professional development. 4. It is essential to introduce Amendments to the National Classifier of Ukraine DK 003: 2010 Occupational Classification in the Public Health sector

The design of trust, past and present: A dialogue between ‘design for trust’ in contemporary design practice and the fire insurance industry in England 1680–1914

What does trust look like? How can it be designed? These are questions that today’s designers face, particularly in the digital world. This thesis lends these challenges a historical context. To do so, it examines the print culture of the fire insurance industry in England in three historical periods. It argues that print was the tangible material that was designed to build trust for this intangible industry. Scholarship has identified the relationship between print culture, trust and credibility. My contribution is to make a detailed analysis of how one financial service made its commercial print effective, and how this can be attributed to design. In this thesis, past and present work in dialogue. Part I reviews the ways in which contemporary design practice has engaged with the concept of trust, in four case studies: Airbnb, Projects by If, a publication by the UCL Urban Laboratory and a project by Service Design students at the Royal College of Art. This survey informs my approach to the historical material. Part II analyses the printed and part-printed documents produced by the Insurance Office (Nicholas Barbon’s Fire Office) between 1680 and 1700, the Sun Fire Office between c. 1800 and c. 1820, and the Sun Insurance Office between c. 1894 and 1914. This part shows how these graphic objects elicited trust. The printed page communicated qualities such as security and afforded the format of the fire policy. It also shaped the work of the people involved in these companies – directors, agents and firemen. The final part of the thesis shows how news print assisted the fire insurance industry in the building and maintaining of trust, at the same time as being a channel which on occasion challenged this message. A multitude of printed matter was designed to dispel the uncertainty upon which fire insurance rested. But the same channels made fraud and distrust both possible and visible. By studying the graphic objects of fire insurance in dialogue with contemporary design issues, I test the philosophical and sociological discussions of trust against the material approach of designers. This thesis deepens the study of ephemera and everyday graphic design. It expands the boundaries of design in Britain since 1680, and builds a bridge to practice today