Konstantinos Tarabanis

ORCID: 0000-0002-4663-2113
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About
Contact & Profiles
Research Areas
  • Service-Oriented Architecture and Web Services
  • E-Government and Public Services
  • Semantic Web and Ontologies
  • Business Process Modeling and Analysis
  • Data Quality and Management
  • Information Technology Governance and Strategy
  • Social Media and Politics
  • Robotics and Sensor-Based Localization
  • Advanced Database Systems and Queries
  • Image Processing Techniques and Applications
  • Advanced Vision and Imaging
  • Service and Product Innovation
  • Online and Blended Learning
  • Data Mining Algorithms and Applications
  • Privacy, Security, and Data Protection
  • Biomedical Text Mining and Ontologies
  • Internet Traffic Analysis and Secure E-voting
  • Online Learning and Analytics
  • Geographic Information Systems Studies
  • Access Control and Trust
  • E-Learning and Knowledge Management
  • ICT Impact and Policies
  • Smart Cities and Technologies
  • Smart Agriculture and AI
  • Innovative Approaches in Technology and Social Development

University of Macedonia
2015-2024

Centre for Research and Technology Hellas
2013-2023

Information Technologies Institute
2006-2023

University of Western Macedonia
2015

Institute of Informatics and Telematics
2013

IBM (United States)
1994-2003

Columbia University
1986-2002

IBM Research - Thomas J. Watson Research Center
1992-2002

A survey of research in the area vision sensor planning is presented. The problem can be summarized as follows: given information about environment well task that system to accomplish, develop strategies automatically determine parameter values achieve this with a certain degree satisfaction. With such strategies, parameters selected and purposefully changed order effectively perform at hand. focus here on for robustly detecting object features. For task, camera illumination position,...

10.1109/70.345940 article EN IEEE Transactions on Robotics and Automation 1995-01-01

Abstract Purpose The purpose of this paper is to consolidate existing knowledge and provide a deeper understanding the use social media (SM) data for predictions in various areas, such as disease outbreaks, product sales, stock market volatility elections outcome predictions. Design/methodology/approach scientific literature was systematically reviewed identify relevant empirical studies. These studies were analysed synthesized form proposed conceptual framework, which thereafter applied...

10.1108/intr-06-2012-0114 article EN Internet Research 2013-10-08

An increasing number of governments worldwide understand the importance electronic participation (eParticipation) i.e. use information and communication technologies (ICTs) to more actively engage citizens in democratic processes. As a result, eParticipation projects relevant tools is rapidly growing. This makes need for recording reviewing such both timely critical. In this paper we present framework assessing tools. The proposed based on distinguishing between areas ICT support these...

10.1109/hicss.2007.13 article EN 2007-01-01

Open government data (OGD) refers to making public sector information freely available in open formats and ways that enable access facilitate exploitation. Lately, a large number of OGD initiatives launched worldwide aiming implement one-stop portals acting as single points governmental data. At the same time, so-called linked technologies emerged at publishing structured on web such way enables semantically enriching data, uniform linking In this paper, we first propose classification...

10.1504/ijwet.2011.040725 article EN International Journal of Web Engineering and Technology 2011-01-01

The MVP (machine vision planner) model-based sensor planning system for robotic is presented. automatically synthesizes desirable camera views of a scene based on geometric models the environment, optical sensors, and task to be achieved. generic feature detectability has been chosen since it applicable many robot-controlled systems. For such task, features interest in environment are required simultaneously visible, inside field view, focus, magnified as required. In this paper, we present...

10.1109/70.345939 article EN IEEE Transactions on Robotics and Automation 1995-01-01

Cloud computing is a promising IT paradigm which enables the Internet's evolution into global market of collaborating services. semantic interoperability plays key role in making this reality. Towards direction, comprehensive and systematic survey efforts by standardization groups, industry research community carried out. The main objective to derive an initial set requirements be supported existing as well next generation systems. Ôhe motivates encourages adopt common framework with core...

10.1109/cloudcom.2011.116 article EN 2011-11-01

This paper presents methods to compute the locus of all viewpoints from which features on known polyhedral objects can be viewed in their entirety without being occluded by anything environment. Convex and concave polyhedra with or holes viewing model perspective projection are employed this work. Initially, properties occlusion-free loci determined. Based these properties, two construct together complexity analysis presented. In first method, a boundary representation is obtained. second...

10.1109/34.485556 article EN IEEE Transactions on Pattern Analysis and Machine Intelligence 1996-03-01

This paper dealt with the topic of E-government and E-participation aiming to provide technologies tools for more efficient public administration systems participatory decision processes. Public administrations are considered heaviest service industry worldwide. During last decades, governments all over world have undertaken huge investments in information communication (ICT), but they still far from satisfying their constituents, as usually operate inefficiently ineffectively. research aims...

10.1109/mis.2009.103 article EN IEEE Intelligent Systems 2009-09-01

This paper focuses on the emerging problem of semantic interoperability between heterogeneous cooperating Cloud platforms. We try to pave way towards a Reference Architecture for Semantically Interoperable Clouds (RASIC). To this end, three fundamental and complementary computing paradigms, namely computing, Service Oriented Architectures (SOA) lightweight semantics are used as main building blocks. The open, generic introduces scalable, reusable transferable approach facilitating design,...

10.1109/cloudcom.2010.38 article EN 2010-11-01

Traffic forecasting has been an important area of research for several decades, with significant implications urban traffic planning, management, and control. In recent years, deep-learning models, such as graph neural networks (GNN), have shown great promise in due to their ability capture complex spatio–temporal dependencies within networks. Additionally, public authorities around the world started providing real-time data open-government (OGD). This large volume dynamic high-value can...

10.3390/info14040228 article EN cc-by Information 2023-04-07

The verticillium fungus has become a widespread threat to olive fields around the world in recent years. accurate and early detection of disease at scale could support solving problem. In this paper, we use YOLO version 5 model detect trees using aerial RGB imagery captured by unmanned vehicles. aim our paper is compare different architectures evaluate their performance on task. are evaluated two input sizes each through most widely used metrics for object classification tasks (precision,...

10.3390/a16070343 article EN cc-by Algorithms 2023-07-17

A method is presented to determine viewpoints for a robotic vision system which object features of interest will simultaneously by visible, inside the field-of-view, in-focus, and magnified as required. technique that poses problem in an optimization setting order satisfy all requirements with margin presented. The formulation results are shown, well experimental robot positioned its lens set according this method. Camera views taken from computed verify feature detectability satisfied.<...

10.1109/robot.1991.131556 article EN 2002-12-10

Many engineering and scientific problems require the filling of a two‐dimensional region with scan lines finite width. The number contiguous line segments required for depends on direction used scanning. When cost operation increases segments, as is case in numerically controlled machining, layered fabrication computer graphics applications, then it desirable to select that minimizes this number. In paper we provide method efficiently computing such an optimal when be filled bounded by...

10.1108/13552540110410431 article EN Rapid Prototyping Journal 2001-12-01

Purpose In this paper, the aim is to develop a framework for evaluating web sites of public authorities. The proposed consists four axes: two assessing general characteristics and content (namely e‐content); specific functionalities addressing their governmental character e‐services e‐participation). Design/methodology/approach gradually built through critical analysis relevant domains, site evaluation e‐government. methodology used in case study includes construction an appropriate...

10.1108/00012530810908229 article EN Aslib Proceedings 2008-09-19
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