Browsing by Subject "Research Subject Categories::TECHNOLOGY::Information technology"

Now showing items 1-20 of 22

  • A Decentralized Voting Mechanism: Engaging ERC-20 token holders in decision-making 

    Christodoulou, Panayiotis; Christodoulou, Klitos (IEEE, 2020-07-20)
    This paper presents a Blockchain-based voting mechanism that has the potential to disrupt current voting systems and fuel the development of decentralized governance. More specifically, the paper presents a study on the ...

  • A distributed, plug-n-play algorithm formulti-robot applications with a priorinon-computable objective functions 

    Kapoutsis, Athanasios Ch.; Chatzichristofis, Savvas A.; Kosmatopoulos, Elias B. (Sage, 2019-05)
    This paper presents a distributed algorithm applicable to a wide range of practical multi-robot applications. In such multi-robot applications, the user-defined objectives of the mission can be cast as a general optimization ...

  • Double Mobile sinks Architecture for WSN Data Gathering and Critical Events Detection 

    Khalifeh, Ala’; Abed, Husam; Darabkh, Khalid A.; Chatzichristofis, Savvas A.; Zinonos, Zinon (IEEE, 2020-06-17)
    Data gathering and critical events detection are two essential functionalities for Wireless Sensor Network (WSN). In this paper, we propose double mobile sinks network architecture, where two mobile sink nodes visit the ...

  • "Educational Robotics: Platforms, Competitions and Expected Learning Outcomes" 

    Evripidou, S.; Georgiou, K.; Doitsidis, L.; Amanatiadis, A. A.; Zinonos, Zinon; Chatzichristofis, Savvas A. (IEEE, 2020-12-04)
    Motivated by the recent explosion of interest around Educational Robotics (ER), this paper attempts to re-approach this area by suggesting new ways of thinking and exploring the related concepts. The contribution of the ...

  • FCTH: Fuzzy color and texture histogram. A low level feature for accurate image retrieval 

    Chatzichristofis, Savvas A.; Boutalis, Yiannis (IEEE (Institute of Electrical and Electronics Engineers , United States), 2008)
    This paper deals with the extraction of a new low level feature that combines, in one histogram, color and texture information. This feature is named FCTH - Fuzzy Color and Texture Histogram - and results from the combination ...

  • A fuzzy rule based control system for fast line following robots. 

    Eleftheriou, G.; Doitsidis, L.; Zinonos, Zinon; Chatzichristofis, Savvas A. (IEEE, 2020-06-17)
    This paper focuses on the optimization of the line-tracking and following control technique used in high speed autonomous movable IoT devices such as line-following robotic vehicles. A fusion of a new pro-active / feed-forward ...

  • Handwritting: keyword spotting The Query by Example (QbE) case 

    Barlas, Georgios; Zagoris, Konstantinos; Pratikakis, Ioannis (Nova Science Publishers, Inc, 2017-07-21)
    The traditional approach in document indexing usually involves an Optical Character Recognition (OCR) step. Although OCR performs well in modern printed documents and documents of high quality printing, in the ...

  • Health Information Exchange with Blockchain amid Covid-19-like Pandemics 

    Christodoulou, Klitos; Christodoulou, Panayiotis; Zinonos, Zinon; Carayiannis, Elias G.; Chatzichristofis, Savvas A. (ΙΕΕΕ, 2020-06-17)
    The COVID-19 pandemic is stress-testing existing health information exchange systems. There exists an increasing demand for sharing patient information and efficiently responding to patient medial data requests. Current ...

  • Hybrid scheme for fast and accurate image retrieval based on color descriptors 

    Chatzichristofis, Savvas A.; Boutalis, Yiannis (ACTA Press, Canada, 2007)
    This paper proposes a new image retrieval system, thatuses only color features and it's based on a hybrid scheme which combines crisp and fuzzy techniques, in order to retrieve color based similar images. The system ...

  • “IoT Device Firmware Update over LoRa: The Blockchain Solution” 

    Anastasiou, A.; Christodoulou, Panayiotis; Christodoulou, Klitos; Vassiliou, V.; Zinonos, Zinon (IEEE, 2020-06-17)
    More and more Internet of Things (IoT) devicesare deployed around the world, due to the convenience andextra functionality they enable. This growth, while great forthe industry as a whole, has ...

  • Known Unknowns in an Era of Technological and ViralDisruptions—Implications for Theory,Policy, and Practice 

    Carayannis, Elias G.; Christodoulou, Klitos; Christodoulou, Panayiotis; Chatzichristofis, Savvas A.; Zinonos, Zinon (Springer Verlag, 2021-02-10)
    Technology is composed of the words “Techne” and “Logos” that refer to the artistic/ creative and the logical/scientific aspects of its dualism. And so inherent this Promethean concept lie the concepts of the Schumpeterian ...

  • Linear-testable and C-testable Nx~x Ny~ modified Booth multipliers 

    Gizopoulos, Dimitris; Paschalis, A.; Nikolos, D. (Institution of Engineering and Technology (IET), 1996)
    The testability of modified Booth multipliers is examined with respect to the cell fault model, an implementation-independent fault model. This is especially useful in design environments where the cell realisations are ...

  • ParkChain: An IoT Parking Service Based on Blockchain 

    Zinonos, Zinon; Christodoulou, Panayiotis; Andreou, Andreas; Chatzichristofis, Savvas A. (IEEE, 2019-08-19)
    The IoT ecosystem is evolving quickly, developing several applications in different sectors. The majority of these applications use centralized infrastructures something that poses several challenges especially related to ...

  • Pay-as-you-go data integration for linked data: opportunities, challenges and architectures 

    Christodoulou, Klitos; Paton, Norman W.; Fernandes, Alvaro A.A.; Parsia, Bijan; Hedeler, Cornelia (ACM Digital Library, 2012)
    Linked Data (LD) provides principles for publishing data that underpin the development of an emerging web of data. LD follows the web in providing low barriers to entry: publishers can make their data available using a ...

  • Randomblocks: A transparent, verifiable blockchain-based system for random numbers 

    Christodoulou, Klitos; Chatzichristofis, Savvas A.; Sirakoulis, Georgios Ch.; Christodoulou, Panayiotis (Old City Publishing, Inc, 2019)
    Games-of-chance require high-levels of trust between participants that is often uncertain and difficult to enforce. The unique characteristics introduced by the blockchain technology can be leveraged to inform a verifiable ...

  • A Smart Product Co-design and Monitoring Framework Via Gamification and Complex Event Processing 

    Loizou, Spyros; Elgammal, Ammal; Kumara, Indika; Christodoulou, Panayiotis; Papazoglou, Mike P.; Andreou, Andreas (ICEIS, 2019)
    In the traditional software development cycle, requirements gathering is considered the most critical phase. Getting the requirements right early has become a dogma in software engineering because the correction of erroneous ...

  • Social Robots in Special Education: Creating Dynamic Interactions for Optimal Experience 

    Amanatiadis, A.; Kaburlasos, Vasileios G.; Dardani, Christina; Chatzichristofis, Savvas A.; Mitropoulos, Athanasios (IEEE, 2020-04-02)
    Recent research has proved the positive therapeutic impacts of robot interaction with children diagnosed with the autism spectrum condition. Until now, most of the evaluated treatment methods apply one-to-one sessions ...

  • Structure inference for linked data sources using clustering 

    Christodoulou, Klitos; Paton, Norman W.; Fernandes, Alvaro A.A. (ACM Digital Library, 2013)
    Linked Data (LD) is supplementing the World Wide Web of documents with a Web of data. This is becoming apparent from the number of LD repositories available as part of the Linked Open Data (LOD) cloud. At the instance-level, ...

  • Studying Affective Tutoring Systems for Mathematical Concepts 

    Mastrodimos, Dimitrios; Chatzichristofis, Savvas A. (Sage, 2019-07-02)
    Students face difficulties in learning mathematical processes. As a result, they have negative emotions toward mathematics. The use of technology is employed to change the student’s attitude toward mathematics. Some ...

  • Towards a Parallel Inference Hnchine: the APIH project 

    Vlahavas, J.; Pombortsis, A.; Stamatis, D. (Microprocessing and Microprogmmmlng, 1990-08)
    This paper gives an overview of the APIM (Aristotle Parallel Inference Machine) research project, which aims to the design of a new multiprocessor architecture for the parallel execution of logic programs. The APIM system ...