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I. Horvath

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18 records found

Seeing the Past, Planning the Future

Proudly Celebrating 25 Years of Assisting the Convergence of Process Sciences and Design Science

Review - I. Horvath, Thomas T.H. Wan, Jingwei Huang, Eric Coatanea, Julia M. Rayz, Yong Zeng, Kyoung Yun Kim

This Extended Editorial has been compiled by the members of the Editorial Board to celebrate the 25th anniversary of the establishment of the Journal of Integrated Design and Process Science, which operates as the Transactions of the Society for Process and Design Science. The pa ...

Designing next-generation cyber-physical systems

Why is it an issue?

Journal article - I. Horvath

Cyber-physical systems (CPSs) are seen as one of the tangible results of the convergence of advanced information technology, nanotechnology, biotechnology, cognitive science, and social science in addition to conventional systems science, engineering, and technologies. Designing ...

The effects of time pressure on driver performance and physiological activity

A driving simulator study

Journal article - E. Rendon Velez, P.M. van Leeuwen, R. Happee, I. Horvath, Wilhelm Frederik van der Vegte, J.C.F. de Winter

Speeding because of time pressure is a leading contributor to traffic accidents. Previous research indicates that people respond to time pressure through increased physiological activity and by adapting their task strategy in order to mitigate task demands. In the present driving ...

The epsilon-knowledge

An emerging complement of Machlup's types of disciplinary knowledge

Journal article - I. Horvath

Machlup used the words alpha, beta, and gamma to identify humanities, science, and social science as three distinct fields of academic learning and knowing, in addition to general knowledge. Gilles and Paquet identified a fourth type of disciplinary knowledge and labeled it as de ...

Framing Supradisciplinary Research for Intellectualized Cyber-Physical Systems

An Unfinished Story

Review - I. Horvath

Conceptualization and design of intellectualized, socialized, and personalized cyber-physical systems (CPSs) need integration of existing knowledge across the involved disciplines, as well as exploration and synthesis of novel knowledge beyond disciplinary boundaries. The latter needs a combined use of interdisciplinary, multidisciplinary, and transdisciplinary research. Supradisciplinary research has emerged as a new doctrine of combining these research approaches from epistemological, methodological, and procedural perspectives. However, no methodology can be found in the literature that could facilitate the practical execution of supradisciplinary research programs. This position paper proposes a conceptual framework that can be used as a blueprint for operationalization of such undertakings. The framework rests on six generic pillars: (i) problematics, (ii) infrastructure, (iii) method, (iv) stakeholders, (v) operations, and (vi) knowledge. It specifies the major concerns that have to be taken into consideration in a systematic manner in developing executional scenarios for supradisciplinary research. The framework facilitates (i) management of research organization tasks, (ii) joint formation of shared research infrastructure, (ii) setting up concrete research program, (iii) academic partnering and public stakeholder involvement, (iv) process flow management and capacity/competence allocation, (v) a holistic knowledge synthesis, assessment, and consolidation, and (vi) development of tools supporting the preparation and execution of large-scale supradisciplinary research. In its current form, it does not cover the specific societal and personal issues of a successful organization of the inquiry at individual researchers, research teams, and research community levels. A community-based follow-up research may focus on the practical application and testing of the framework in concrete cases-a task that an individual researcher cannot address.@en

Sympérasmology

A proposal for the theory of synthetic system knowledge

Journal article - I. Horvath

Owing to the results of research in system science, artificial intelligence, and cognitive engineering, engineered systems are becoming more and more powered by knowledge. Complementing common-sense andscientific knowledge,systemknowledge is maturingintoa crucial productive asset ...

Personalized Messaging Based on Dynamic Context Assessment

Application in An Informing Cyber-Physical System

Journal article - Y. Li, I. Horvath, Z. Rusak

Hazard-intense applications of cyber-physical systems (CPSs), such as the evacuation of a building on fire, require personalized informing on the basis of a real-time assessment of dynamic context. In this paper, a context-dependent message construction mechanism (CD-MCM) is proposed with the objectives (i) to inform people about the emergence and development of a situation unsafe for them, and (ii) to instruct them what they have to do according to an adaptively computed action plan. To achieve this, the concepts of 'situation' and 'impact indicator' have been introduced in order to facilitate the computation of personalized action plans and to send messages about the level of danger and the requested actions. In both activities, the inferred implications of situations are used as the basis of informing the involved people. The messages are adapted to actual situations. In addition, the concept of 'relevance indicator' was utilized to assess the significance of the standing situations for the concerned people in a quasi-real-time manner. The level of danger was evaluated for each person by totaling the values of the situation-related relevance indicators. This was also used to select the proper message templates from the predefined alternatives in the process of message construction. The personalized messages were generated based on the chosen message template and the various message components describing concerned situations or providing instructions. The CD-MCM was validated in a simulated indoor fire evacuation guiding application. In the practical evaluation of the quality of the generated messages, a sample of test people was involved. The results of the evaluation show that the messages generated by the proposed CD-MCM lead to more effective messaging about the personal context and the expected actions than the messages constructed by using static context information only. The reason is that the proposed template-based message construction mechanism facilitates the appropriateness as well as the articulation of the contents of context-sensitive personalized messages.@en

The state of framework development for implementing reasoning mechanisms in smart cyber-physical systems

A literature review

Review - S. Tepjit, I. Horvath, Z. Rusak

Smart CPSs (S-CPSs) have been evolving beyond what was identified by the traditional definitions of CPSs. The objective of our research is to investigate the concepts and implementations of reasoning processes for S-CPSs, and more specifically, the frameworks proposed for the fuz ...

Combining unmergeables

A methodological framework for axiomatic fusion of qualitative design theories

Journal article - I. Horvath

The proposed methodological framework concerns axiomatic theory fusion (ATF) of non-additive engineering design theories. ATF includes seven steps: (i) semantic discretization of the composite theories, (ii) deriving epistemological entities by logical/semantic analysis, (iii) es ...

A Review of the Principles of Designing Smart Cyber-Physical Systems for Run-Time Adaptation

Learned Lessons and Open Issues

Journal article - Jože Tavčar, I. Horvath

Smart cyber-physical systems (S-CPSs) are complex engineered systems empowered by cyber-physical computing and equipped with the capability of reasoning, learning, adapting, and evolving. As an outcome of data-driven dynamic computing, reasoning capabilities, and the run-time obt ...

The epsilon-knowledge:

An emerging complement of Machlup’s types of disciplinary knowledge

Journal article - I. Horvath

Machlup, F. used the words alpha, beta, and gamma to identify humanities, science, and social science as three distinct fields of academic learning and knowing, in addition to general knowledge. Gilles, W. and Paquet, G. identified a fourth type of disciplinary knowledge and labe ...

Designing Cyber-Physical Systems for Runtime Self-Adaptation

Knowing More about What We Miss...

Review - I. Horvath, Jože Tavčar

Cyber-physical systems (CPSs) represent practical examples of the integration of bits and atoms in human and social contexts and contribute to the integration of neurons and genes into system implementation. Many experts believe that a deeper theoretical understanding of system a ...

Procedural abduction as enabler of smart operation of cyber-physical systems

Theoretical foundations

Conference paper - I. Horvath

Some sort of `intellectual' mechanisms are needed for second generation cyber-physical systems (CPSs) to be self-aware and self-adaptive. This paper (i) proposes procedural abduction (PA) as one possible mechanism for enabling smart reasoning, (ii) introduces the fundamental conc ...

Order beyond chaos

Introducing the notion of generation to characterize the continuously evolving implementations of cyber-physical systems

Conference paper - I. Horvath, Z. Rusak, Y. Li

Authors belonging to different institutions (‘schools’) of cyber-physical systems (CPSs) research and development report on largely different objectives, underpin their work with different theories and methodologies, and target characteristics which can actually better characteri ...

Order beyond chaos

Introducing the notion of generation to characterize the continuously evolving implementations of cyber-physical systems

Conference paper - I. Horvath, Z. Rusak, Y. Li

Compositional engineering frameworks for development of smart cyber-physical systems

A critical survey of the current state of progression

Conference paper - I. Horvath, S. Tepjit, Z. Rusak

Various system-engineering frameworks (SEFs) have been developed for composable systems, whose overall operation is the sum of the operations of their components. However, smart cyber-physical systems (S-CPSs) are compositional in nature. Their reasoning capability and system kno ...

Inventive Approaches to Competitive Systems Engineering

Is There Anything New Under the Sun?

Review - I. Horvath

The special issue of the Journal of Integrated Design and Process Science (JIDPS) discusses inventive approaches to competitive systems engineering, including any new developments in the area. It focuses on how inventiveness can be achieved in such a conventional domain as genera ...

Fundamentals and contributions to validation of constructive computational methodologies

A focused survey

Journal article - Y. Li, I. Horvath

Computational mechanisms (complex structures of functionally connected algorithms) are developed very frequently by both the academia and the industry for specific applications, but the transferability to other applications is seldom addressed and systematically tested. This rais ...

Contributed

2 records found

Professional neck massage device in everyday surroundings

A solution applying principles of Cyber-Physical Systems

Master thesis - J. Bai, I. Horvath, A. Kooijman

Office workers who hold a static posture during prolonged computer work have the highest incidence of neck disorders. Clinical massage, as one of the main treatment methods, has been proved to be effective by many studies. The proposed idea is to record what the therapist did in ...

System-level feature-based modeling of cyber-physical systems

A theoretical framework and methodological fundamentals

Doctoral thesis - S. Pourtalebi Hendehkhaleh

Cyber-physical systems are complex trans-disciplinary systems. Designing this kind of systems requires cooperation of several groups of experts with various backgrounds such as mechatronics and robotics, software engineering, data management, knowledge engineering, system on a chip, embedded systems, humans and systems interaction, and social and cognitive engineering. Design of a new CPS is typically initiated by system designers, who focus on system-level architecting and functional design (pre-embodiment design), and completed by embodiment/detail designers (who focus on components and their interoperation). Although there are numerous software tools to assist designers in detail design, it is hard to find dedicated tools that can sufficiently support CPS designers in pre-embodiment design phase. The tools available for this purpose are mostly based on logical, analytical, and mathematical modeling. They usually apply various levels of abstraction and simplification in modeling. As a result, many important chunks of information about attributes and parameterization of components are ignored or lost in system-level conceptualization. To overcome this problem, we introduced the framework and computational methodology of a system-level feature-based modeling, which can be used as a basis for developing next-generation CPSs modeling tools. As an general underpinning, we have developed the mereo-operandi theory (MOT), which combines several classic theories in a uniform body and captures information about architectural and operational relations in a system in an integral manner. As a complementary to MOT, the theory of system manifestation features (SMFs) has been proposed that introduced the methodological fundamentals. SMFs have been defined as multi-stage, knowledge-intensive, compound modeling entities. The developed knowledge frames have been implemented as relational tables of the modeling warehouses. The computational procedures required for modeling of CPSs have also been elaborated. For validation, the developed modeling framework was benchmarked against multiple available modeling tools. It has been concluded that SMFs-based modeling offers many new opportunities for compositional modeling of CPSs. Some of the novelties are: (i) imposing strictly physical view, (ii) concurrent modeling of architecture and operation aspects, (iii) uniform information structure for all kinds of components, and (iv) benefiting from active ontologies.@en