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Found 6278 publications

VR as a Medium of Communication: From Memory Palaces to Comprehensive Memory Management

Peter Galambos None Csapó Ildiko Horvath Péter Baranyi

Publication Name: 9th IEEE International Conference on Cognitive Infocommunications Coginfocom 2018 Proceedings

Publication Date: 2018-07-02

Volume: Unknown

Issue: Unknown

Page Range: 389-394

Description:

This paper investigates the unique potential of VR environments to serve as a comprehensive tool for communication and memory management. The paper uncovers intricate - and in some sense holistic - links between certain kinds of VR spaces and existing frameworks for the design and analysis of conceptual mappings, and shows how VR spaces can do more than just provide appealing visual experiences, by capturing the psychology of how new memories are formed. The paper provides multiple examples from the MaxWhere VR platform to support its main arguments, and concludes with a discussion on what these arguments, if accepted as correct, will mean for AI-enhanced CogInfoCom systems in the future.

Open Access: Yes

DOI: 10.1109/CogInfoCom.2018.8639896

Auditory and Haptic Solutions for Access and Feedback in Internet of Digital Reality Applications

None Csapó György Wersényi

Publication Name: 2022 IEEE 2nd Conference on Information Technology and Data Science Citds 2022 Proceedings

Publication Date: 2022-01-01

Volume: Unknown

Issue: Unknown

Page Range: 319-323

Description:

The concept of Internet of Digital Reality (IoD) was introduced as the next level organization of cognitive entities following the concept of the Internet of Things (IoT) and Internet of Everything (IoE). As virtual-immersive environments are a fundamental component of IoD which allow human and non-human entities to interact in real time, the ability a wide range of communication modalities is crucial. This paper briefly presents the concept of IoD together with an overview of various I/O solutions for human users, with a focus on research directions and (re)emerging technologies in the near future.

Open Access: Yes

DOI: 10.1109/CITDS54976.2022.9914161

Ownership and control in the bus industry: The case of Hungary

John D. Nelson Wafaa Saleh István Prileszky

Publication Name: Journal of Transport Geography

Publication Date: 1997-01-01

Volume: 5

Issue: 2

Page Range: 137-146

Description:

In Hungary, the impending expiry of existing operating licences for both urban and interurban bus services is leading to considerable pressure for change in the current system of ownership and control. Furthermore, the transport sector in Hungary faces several endemic problems. Consequently, this paper analyses the experience of the public transport sector in Hungary with respect to the current situation noting changes after 1990. At the national level, reference is made to both road-based transport (including car ownership and use) and (briefly) to railways. The situation in Budapest is then considered in detail. Next, the structure of the public transport sector in Hungary is discussed both before and after 1990 when the move towards a free market economy received new impetus. The paper examines, as a case-study, the recent experience of private bus operators in Hungary. Finally, drawing on experience elsewhere with possible models for privatization and deregulation in the case of bus operations, suggestions are offered on lessons to be learned by the governments of countries in Central and Eastern Europe as they assess the possibilities for alternative methods of ownership and control. © 1997 Elsevier Science Ltd.

Open Access: Yes

DOI: 10.1016/s0966-6923(97)84102-6

Proposal of a graph-based motion planner architecture

Áron Ballagi Csaba Hajdu

Publication Name: 11th IEEE International Conference on Cognitive Infocommunications Coginfocom 2020 Proceedings

Publication Date: 2020-09-23

Volume: Unknown

Issue: Unknown

Page Range: 393-398

Description:

Motion planning is a critical task in robots and autonomous vehicles. This task is typically complex in computation and structure. Current frameworks are difficult to extend and supervise. This article presents a new architectural proposal of motion planning software, which can be used by mobile robots and autonomous vehicles. Defining aspects have been inspired by the foundations of Cognitive Infocommunications (CogInfoCom) to construct a highly interactive system aiming intuitive human-computer collaboration. The structure is based on a graph-based approach which is suitable in a distributed setting. This formalization provides a graphical behavior description, an intuitive way for human actors to interact with the system. The behavior of each acting component is based on a hybrid-system formalism which can further serve as a basis to model human behavior.

Open Access: Yes

DOI: 10.1109/CogInfoCom50765.2020.9237891

Visual Inspection in Transport Using Autonomous Robots

Aleksandar Miltenović Szabolcs Fischer Milan Banić Marko Perić

Publication Name: Lecture Notes in Networks and Systems

Publication Date: 2025-01-01

Volume: 1258 LNNS

Issue: Unknown

Page Range: 132-143

Description:

The development of new technologies, which include advanced sensors and the application of artificial intelligence, has led to the moment that some operations done by workers can be changed in the maintenance domain. Visual inspection is one of the operations that will be changed in the future. Today, there are various legal regulations regarding the maintenance and control of vehicles in the transport sector, which cause additional costs for operators. There is a need to reduce those costs by integrating autonomous robots for the visual inspection of various vehicles. In addition to reduced costs, the benefits are reflected in improved human safety, greater efficiency, and reduced errors during the visual controls. This paper explores various applications of autonomous robots in various transport domains, including rail systems, road and bridge networks, aerospace, and maritime industries. It also shows a real example of visual control of locomotive undercarriage in railways.

Open Access: Yes

DOI: 10.1007/978-3-031-81799-1_13

Considering energy in the simulation of manufacturing systems

Sigrid Wenzel János Jósvai Johannes Stoldt Tobias Uhlig Andreas Schlegel Tim Peter

Publication Name: Proceedings Winter Simulation Conference

Publication Date: 2018-07-02

Volume: 2018-December

Issue: Unknown

Page Range: 3275-3286

Description:

In recent years, environmental aspects became one of the key interests in manufacturing. Accordingly, simulation studies had to include factors like energy or emissions. This paper aims to provide a comprehensive introduction to the state of the art in modeling of energy and emissions in simulation of manufacturing systems. We review existing literature to develop a landscape of common approaches and best practices. Typical goals and objectives of the reviewed simulation projects are summarized. Furthermore, we will evaluate the structure and life cycle phases of the examined manufacturing systems and look into the requirements and implementation of respective simulation studies. Finally, we will discuss open questions and future trends in this field of research.

Open Access: Yes

DOI: 10.1109/WSC.2018.8632238

Probabilistic Topology Optimization Framework for Geometrically Nonlinear Structures Considering Load Position Uncertainty and Imperfections

Oveys Ghodousian Hamed Fathnejat Majid Movahedi Rad Muayad Habashneh

Publication Name: Mathematics

Publication Date: 2024-12-01

Volume: 12

Issue: 23

Page Range: Unknown

Description:

In this manuscript, a novel approach to topology optimization is proposed which integrates considerations of uncertain load positions, thereby enhancing the reliability-based design within the context of structural engineering. Extending the conventional framework to encompass imperfect geometrically nonlinear analyses, this research discovers the intricate interplay between nonlinearity and uncertainty, shedding light on their combined effects on probabilistic analysis. A key innovation lies in treating load position as a stochastic variable, augmenting the existing parameters, such as volume fraction, material properties, and geometric imperfections, to capture the full spectrum of variability inherent in real-world conditions. To address these uncertainties, normal distributions are adopted for all relevant parameters, leveraging their computational efficacy, simplicity, and ease of implementation, which are particularly crucial in the context of complex optimization algorithms and extensive analyses. The proposed methodology undergoes rigorous validation against benchmark problems, ensuring its efficacy and reliability. Through a series of structural examples, including U-shaped plates, 3D L-shaped beams, and steel I-beams, the implications of considering imperfect geometrically nonlinear analyses within the framework of reliability-based topology optimization are explored, with a specific focus on the probabilistic aspect of load position uncertainty. The findings highlight the significant influence of probabilistic design methodologies on topology optimization, with the defined constraints serving as crucial conditions that govern the optimal topologies and their corresponding stress distributions.

Open Access: Yes

DOI: 10.3390/math12233686

Object-oriented database schema analysis and inheritance processing: A graph-theoretic approach

M. Missikoff A. Formica H. D. Groger

Publication Name: Data and Knowledge Engineering

Publication Date: 1997-01-01

Volume: 24

Issue: 2

Page Range: 157-181

Description:

In this paper we address the inheritance process in the context of strongly typed Object-oriented database (OODB) systems, allowing multiple inheritance and overriding. For such powerful systems, it is important to analyse the inheritance hierarchy to identify a number of significant properties. The first, schema consistency, is connected to the inheritance conflicts. In the presence of an unsolvable inheritance conflict there is a contradiction in the schema. The second property is related to the termination of the inheritance process. We expect that all the subtypes in the schema, if consistent, can be rewritten in expanded form, after inheritance, in a finite time. Schemas that guarantee these two formal properties will be referred to as correct schemas. In the paper a graph-theoretic method is provided, aimed at supporting the designer in checking the correctness and deriving the expanded form of a schema. Furthermore, from the analysis of the complexity of the inheritance process, a third formal property has been defined, concerning the degree of compactness achievable in a schema, by using inheritance hierarchies. In particular, a class of schemas has been defined, referred to as logarithmic schemas, whose expanded forms, after inheritance, become exponential in the size of the original schemas.

Open Access: Yes

DOI: 10.1016/S0169-023X(97)00018-9

Environmental management model: an analysis on the relations of the components of environmental management

M. Bulla

Publication Name: Proceedings of the 1st International Conference on Environmental Engineering Education and Training Eeet 96

Publication Date: 1996-01-01

Volume: Unknown

Issue: Unknown

Page Range: 151-159

Description:

The theme of the essay: The presentation of an environmental analysis model Aim and utility: environmental condition varieties as well as effects on people; economic and social activities behind the effects and their influence on changing environmental policy regulations; establish a conceptual organization which can support the analysis of interactions.

Open Access: Yes

DOI: DOI not available