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2020 – today

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2024
[j13]
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Charalampos Alexopoulos, Stuti Saxena, Marijn Janssen, Nina Rizun, Martin Lnenicka, Ricardo Matheus:
Why do Open Government Data initiatives fail in developing countries? A root cause analysis of the most prevalent barriers and problems. Electron. J. Inf. Syst. Dev. Ctries. 90(2) (2024)
[j12]
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Fredrick Ishengoma, Deo Shao, Raphael Gouvêa da Silva, Guilherme Costa Wiedenhöft, Ricardo Matheus, Charalampos Alexopoulos, Nina Rizun, Stuti Saxena:
Identification of Public Service Logic (PSL) and Public Service Motivation (PSM) elements in Open Government Data (OGD) initiatives. Electron. J. Inf. Syst. Dev. Ctries. 90(3) (2024)
[j11]
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Fredrick Ishengoma, Deo Shao, Raphael Gouvêa da Silva, Guilherme Costa Wiedenhöft, Charalampos Alexopoulos, Nina Rizun, Stuti Saxena:
Value co-creation (VCC) and value co-destruction (VCD) via open government data (OGD): Empirical case of Tanzania. Electron. J. Inf. Syst. Dev. Ctries. 90(4) (2024)
[j10]
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  - journals/iswa/AhmedAPP24
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Umair Ahmed, Charalampos Alexopoulos, Marco Piangerelli, Andrea Polini:
BRYT: Automated keyword extraction for open datasets. Intell. Syst. Appl. 23: 200421 (2024)
[j9]
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Abiola Paterne Chokki, Charalampos Alexopoulos, Ricardo Matheus, Stuti Saxena, Benoît Frénay, Benoît Vanderose:
Do open government data (OGD) portals show signs of knowledge management (KM) practices?: an empirical investigation. Technol. Anal. Strateg. Manag. 36(12): 4829-4844 (2024)
[j8]
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Nina Rizun, Charalampos Alexopoulos, Stuti Saxena, Fernando Kleiman, Ricardo Matheus:
Do personality traits influence the user's behavioral intention to adopt and use Open Government Data (OGD)? An empirical investigation. Telematics Informatics 87: 102073 (2024)
[c60]
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  - conf/dgo/MaratsiAACP24
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Maria Ioanna Maratsi, Umair Ahmed, Charalampos Alexopoulos, Yannis Charalabidis, Andrea Polini:
Towards Cross-Domain Linking of Data: A Semantic Mapping of Cultural Heritage Ontologies. DG.O 2024: 165-176
[c59]
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  - conf/dgo/KhairovaRACLR24
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Nina Khairova, Nina Rizun, Charalampos Alexopoulos, Magdalena Ciesielska, Arsenii Lukashevskyi, Ivan Redozub:
Understanding the Ukrainian Migrants Challenges in the EU: A Topic Modeling Approach. DG.O 2024: 196-205
[c58]
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Nina Rizun, Halina Ryzhkova, Irena Pawlyszyn, Charalampos Alexopoulos:
Employment of University Graduates in the Era of Digitalization and Artificial Intelligence: Challenges and Prospects. DG.O 2024: 1037-1039
2023
[j7]
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  - journals/ejisdc/WiedenhoftMSA23
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Guilherme Costa Wiedenhöft, Ricardo Matheus, Stuti Saxena, Charalampos Alexopoulos:
Barriers towards Open Government Data Value Co-Creation: An empirical investigation. Electron. J. Inf. Syst. Dev. Ctries. 89(5) (2023)
[j6]
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Guilherme Costa Wiedenhöft, Charalampos Alexopoulos, Stuti Saxena, Nina Rizun, Ricardo Matheus:
Assessing the failure of Open Government Data initiatives in Brazil. Electron. J. Inf. Syst. Dev. Ctries. 89(6) (2023)
[j5]
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  - journals/ijmso/MaratsiLAC23
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Maria Ioanna Maratsi, Zoi Lachana, Charalampos Alexopoulos, Yannis Charalabidis:
A functional and semantic analysis of artifact representation schemata in folklore museum websites. Int. J. Metadata Semant. Ontologies 16(2): 105-117 (2023)
[c57]
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Maria Ioanna Maratsi, Mohsan Ali, Charalampos Alexopoulos, Stuti Saxena, Nina Rizun, Yannis Charalabidis:
Analyzing Open Government High Value Datasets: Availability, Publishers' Contribution and Technical Specifications. BIR 2023: 291-310
[c56]
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  - conf/bir/PapageorgiouLPR23
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Georgios Papageorgiou, Euripidis N. Loukis, Georgios Pappas, Nina Rizun, Stuti Saxena, Yannis Charalabidis, Charalampos Alexopoulos:
Open Government Data in Educational Programs Curriculum: Current State and Prospects. BIR 2023: 311-326
[c55]
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Charalampos Alexopoulos, Stuti Saxena:
Moderating effects of gender, perceived importance and usage experience towards Open Government Data (OGD) adoption and usage. DG.O 2023: 205-213
[c54]
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  - conf/dgo/RizunASKM23
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Nina Rizun, Charalampos Alexopoulos, Stuti Saxena, Fernando Kleiman, Ricardo Matheus:
How do personality traits influence Open Government Data (OGD) adoption and usage? Investigating the indirect and moderating effects. DG.O 2023: 458-467
[c53]
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  - conf/dgo/NikiforovaARC23
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Anastasija Nikiforova, Charalampos Alexopoulos, Nina Rizun, Magdalena Ciesielska:
Identification of High-Value Dataset determinants: is there a silver bullet for efficient sustainability-oriented data-driven development? DG.O 2023: 676-678
[c52]
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  - conf/egov/LoukisSRMAA23
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Euripides N. Loukis, Stuti Saxena, Nina Rizun, Maria Ioanna Maratsi, Mohsan Ali, Charalampos Alexopoulos:
ChatGPT Application vis-a-vis Open Government Data (OGD): Capabilities, Public Values, Issues and a Research Agenda. EGOV 2023: 95-110
[c51]
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  - conf/egov/MaratsiCA23
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Maria Ioanna Maratsi, Yannis Charalabidis, Charalampos Alexopoulos:
A Categorization of Cross-Domain Semantic Interoperability Challenges for Open (Government) Data (short paper). EGOV-CeDEM-ePart-* 2023
[c50]
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  - conf/egov/NikiforovaRCAM23
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Anastasija Nikiforova, Nina Rizun, Magdalena Ciesielska, Charalampos Alexopoulos, Andrea Miletic:
Towards High-Value Datasets Determination for Data-Driven Development: A Systematic Literature Review. EGOV 2023: 211-229
[c49]
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  - conf/emcis/BourasDKKGKCLAP23
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Christos Bouras, Damianos Diasakos, Chrysostomos-Athanasios Katsigiannis, Vasileios Kokkinos, Apostolos Gkamas, Nikos I. Karacapilidis, Yannis Charalabidis, Zoi Lachana, Charalampos Alexopoulos, Theodoros Papadopoulos, Georgios Karamanolis, Michail Psalidas:
A Chatbot Generator for Improved Digital Governance. EMCIS (1) 2023: 123-134
[c48]
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  - conf/emcis/MaratsiAC23
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Maria Ioanna Maratsi, Charalampos Alexopoulos, Yannis Charalabidis:
A Structured Analysis of Domain-Specific Linked Open Vocabularies (LOV): Indicators for Interoperability and Reusability. EMCIS (1) 2023: 135-152
[c47]
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  - conf/emcis/CharalabidisAAP23
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Yannis Charalabidis, Thanos Anagnou, Charalampos Alexopoulos, Theodoros Papadopoulos, Zoi Lachana, Christos Bouras, Nikos I. Karacapilidis, Vasileios Kokkinos, Apostolos Gkamas:
Chatbot Technology Assessment: 40 Cases from Greece. EMCIS (1) 2023: 167-181
[c46]
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  - conf/i3e/PapageorgiouMAWLRCS23
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Georgios Papageorgiou, Ricardo Matheus, Charalampos Alexopoulos, Guilherme Wiedenhöft, Euripides N. Loukis, Nina Rizun, Yannis Charalabidis, Stuti Saxena:
Benchmarking Open Government Data (OGD) Curriculum in Universities. I3E 2023: 127-138
[c45]
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  - conf/i3e/MatheusNRASWS23
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Ricardo Matheus, Naveen Naval, Nina Rizun, Charalampos Alexopoulos, Raphael Gouvêa da Silva, Guilherme Wiedenhöft, Stuti Saxena:
What's in a Brand? Place Branding and Migration in Smart Cities. I3E 2023: 349-359
[c44]
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  - conf/icegov/LoutsarisAMC23
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Michalis Avgerinos Loutsaris, Charalampos Alexopoulos, Maria Ioanna Maratsi, Yannis Charalabidis:
Semantic Interoperability for Legal Information: Mapping the European Legislation Identifier (ELI) and Akoma Ntoso (AKN) Ontologies. ICEGOV 2023: 41-53
[c43]
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  - conf/icegov/CharalabidisLAL23
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Yannis Charalabidis, Zoi Lachana, Charalampos Alexopoulos, Michalis Avgerinos Loutsaris:
An algorithmic method for business process reengineering and service automation in the public sector. ICEGOV 2023: 119-126
[c42]
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  - conf/icegov/SWLAREM23
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Stuti Saxena, Guilherme Wiedenhöft, Edimara M. Luciano, Charalampos Alexopoulos, Nina Rizun, Euripides N. Loukis, Ricardo Matheus:
Information scent and open government data (OGD) engagement: research agenda. ICEGOV 2023: 235-241
[c41]
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  - conf/pci/MaratsiAC23
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Maria Ioanna Maratsi, Charalampos Alexopoulos, Yannis Charalabidis:
Team Radiant or Dire? Comparing the SVM and k-NN Classifiers upon a DotA2 Matches Dataset. PCI 2023: 48-52
[i1]
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  - journals/corr/abs-2305-10234
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Anastasija Nikiforova, Nina Rizun, Magdalena Ciesielska, Charalampos Alexopoulos, Andrea Miletic:
Towards High-Value Datasets determination for data-driven development: a systematic literature review. CoRR abs/2305.10234 (2023)
2022
[j4]
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  - journals/giq/VirkarATN22
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Shefali Virkar, Charalampos Alexopoulos, Sofia Tsekeridou, Anna-Sophie Novak:
A user-centred analysis of decision support requirements in legal informatics. Gov. Inf. Q. 39(3): 101713 (2022)
[c40]
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  - conf/emcis/AliZACE22
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Mohsan Ali, Ioannis Zlatinis, Charalampos Alexopoulos, Yannis Charalabidis, Loukis Euripides:
A Comprehensive Framework for Measuring Governments' Digital Initiatives Including Open Data. EMCIS 2022: 223-241
[c39]
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  - conf/emcis/HrustekMA22
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Larisa Hrustek, Renata Mekovec, Charalampos Alexopoulos:
Concept for an Open Data Ecosystem to Build a Powerful Data Environment. EMCIS 2022: 251-263
[c38]
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  - conf/icegov/MaratsiPAC22
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Maria Ioanna Maratsi, Oliver Popov, Charalampos Alexopoulos, Yannis Charalabidis:
Ethical and Legal Aspects of Digital Forensics Algorithms: The Case of Digital Evidence Acquisition. ICEGOV 2022: 32-40
[c37]
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  - conf/icegov/AliAC22
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Mohsan Ali, Charalampos Alexopoulos, Yannis Charalabidis:
A comprehensive review of open data platforms, prevalent technologies, and functionalities. ICEGOV 2022: 203-214
[c36]
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  - conf/icegov/KevicAD22
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Karlo Kevic, Charalampos Alexopoulos, Ana Kuvezdic Divjak:
Assessing Information and System Quality of Open Government Data Portals in Croatia. ICEGOV 2022: 316-324
[c35]
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  - conf/pci/AliMEAC22
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Mohsan Ali, Maria Ioanna Maratsi, Loukis Euripides, Charalampos Alexopoulos, Yannis Charalabidis:
Analysis of Reviews on Greek Municipalities to Improve Public Service Delivery and Citizen Satisfaction: A Tool for Co-creation and Co-design. PCI 2022: 296-303
[c34]
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Mohsan Ali, Ali Muhammad, Muhammad Asad, Makhdoom Sajawal, Charalampos Alexopoulos, Yannis Charalabidis:
Towards Perso-Arabic Urdu Language Hate Detection Using Machine Learning: A Comparative Study Based on a Large Dataset and Time-Complexity. PCI 2022: 317-321
2021
[c33]
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Michalis Avgerinos Loutsaris, Zoi Lachana, Charalampos Alexopoulos, Yannis Charalabidis:
Legal Text Processing: Combing two legal ontological approaches through text mining. DG.O 2021: 522-532
[c32]
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Nina Rizun, Magdalena Ciesielska, Gabriela Viale Pereira, Charalampos Harris Alexopoulos:
Mapping negative unintended consequences of disruptive technologies use in smart cities. ECIS 2021
[c31]
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  - conf/emcis/AlexopoulosKPC21
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Charalampos Alexopoulos, Panagiotis Keramidis, Gabriela Viale Pereira, Yannis Charalabidis:
Towards Smart Cities 4.0: Digital Participation in Smart Cities Solutions and the Use of Disruptive Technologies. EMCIS 2021: 258-273
[c30]
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  - conf/epart/AlexopoulosLV21
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Charalampos Alexopoulos, Euripides N. Loukis, Shefali Virkar:
Evaluating Second Generation Cross-Country Open Legal Data Infrastructures Using Value Models. ePart 2021: 180-197
[c29]
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  - conf/icegov/LachanaLAC21
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Zoi Lachana, Michalis Avgerinos Loutsaris, Charalampos Alexopoulos, Yannis Charalabidis:
Clustering legal artifacts using text mining. ICEGOV 2021: 65-70
[c28]
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  - conf/icegov/VirkarLA21
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Shefali Virkar, Euripidis N. Loukis, Charalampos Alexopoulos:
A Methodology for Evaluating Advanced Legal Data Infrastructures. ICEGOV 2021: 80-88
2020
[j3]
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  - journals/ijesma/LachanaLAC20
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Zoi Lachana, Michalis Avgerinos Loutsaris, Charalampos Alexopoulos, Yannis Charalabidis:
Automated Analysis and Interrelation of Legal Elements Based on Text Mining. Int. J. E Serv. Mob. Appl. 12(2): 79-96 (2020)
[c27]
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  - conf/dgo/CharalabidisLAV20
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Yannis Charalabidis, Euripidis N. Loukis, Charalampos Alexopoulos, Nikolaos Vogiatzis, Dimitrios E. Kolokotronis:
Convergence and Divergence Between Municipalities and Citizens about Smart City Actions' Priorities. DG.O 2020: 97-108
[c26]
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  - conf/dgo/RonzhynWPA20
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Alexander Ronzhyn, Maria A. Wimmer, Gabriela Viale Pereira, Charalampos Alexopoulos:
Gamification in Public Service Provisioning: Investigation of Research Needs. DG.O 2020: 294-300
[c25]
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  - conf/egov/LoenenDZTA20
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Bastiaan van Loenen, Frederika Welle Donker, Anneke Zuiderwijk, Drazen Tutic, Charalampos Alexopoulos:
Towards an Open Data Research Ecosystem in Croatia. EGOV-CeDEM-ePart-* 2020: 59-70
[c24]
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  - conf/emcis/SarantisACLL20
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Demetrios Sarantis, Charalampos Alexopoulos, Yannis Charalabidis, Zoi Lachana, Michalis Avgerinos Loutsaris:
Blockchain in Digital Government: Research Needs Identification. EMCIS 2020: 188-204
[c23]
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  - conf/epart/AlexopoulosVLNL20
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Charalampos Alexopoulos, Shefali Virkar, Michalis Avgerinos Loutsaris, Anna-Sophie Novak, Euripidis N. Loukis:
Analysing Legal Information Requirements for Public Policy Making. ePart 2020: 95-108
[c22]
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  - conf/icegov/PakhalovRA20
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Alexander M. Pakhalov, Natalia A. Rozhkova, Charalampos Alexopoulos:
Assessing the quality of e-Government services for entrepreneurship: a comparative study in Russia's regions. ICEGOV 2020: 315-325
[c21]
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Shefali Virkar, Charalampos Alexopoulos, Stefania Stavropoulou, Sofia Tsekeridou, Anna-Sophie Novak:
User-centric decision support system design in legal informatics: a typology of users. ICEGOV 2020: 711-722
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Stefania Stavropoulou, Ilias Romas, Sofia Tsekeridou, Michalis Avgerinos Loutsaris, Thomas J. Lampoltshammer, Lörinc Thurnay, Shefali Virkar, Günther Schefbeck, Nektarios Kyriakou, Zoi Lachana, Charalampos Alexopoulos, Yannis Charalabidis:
Architecting an innovative big open legal data analytics, search and retrieval platform. ICEGOV 2020: 723-730

2010 – 2019

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2019
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Yannis Charalabidis, Euripidis N. Loukis, Charalampos Alexopoulos, Zoi Lachana:
The Three Generations of Electronic Government: From Service Provision to Open Data and to Policy Analytics. EGOV 2019: 3-17
[c18]
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Alexander Ronzhyn, Maria A. Wimmer, Vera Spitzer, Gabriela Viale Pereira, Charalampos Alexopoulos:
Using Disruptive Technologies in Government: Identification of Research and Training Needs. EGOV 2019: 276-287
[c17]
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Charalampos Alexopoulos, Yannis Charalabidis, Aggeliki Androutsopoulou, Michalis Avgerinos Loutsaris, Zoi Lachana:
Benefits and Obstacles of Blockchain Applications in e-Government. HICSS 2019: 1-10
[c16]
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Marijn Janssen, Judie Attard, Charalampos Alexopoulos:
Introduction to the Minitrack on Data-driven Government: Creating value from Big and Open Linked Data. HICSS 2019: 1-2
[c15]
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Charalampos Alexopoulos, Gabriela Viale Pereira, Yannis Charalabidis, Lorenzo Madrid:
A Taxonomy of Smart Cities Initiatives. ICEGOV 2019: 281-290
[c14]
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Charalampos Alexopoulos, Zoi Lachana, Aggeliki Androutsopoulou, Vasiliki Diamantopoulou, Yannis Charalabidis, Michalis Avgerinos Loutsaris:
How Machine Learning is Changing e-Government. ICEGOV 2019: 354-363
[c13]
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Yannis Charalabidis, Michalis Avgerinos Loutsaris, Shefali Virkar, Charalampos Alexopoulos, Anna-Sophie Novak, Zoi Lachana:
Use Case Scenarios on Legal Text Mining. ICEGOV 2019: 364-373
[c12]
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Demetrios Sarantis, Soumaya I. Ben Dhaou, Charalampos Alexopoulos, Alexander Ronzhyn, Gabriela Viale Pereira, Yannis Charalabidis:
The Evolving e-Governance Curriculum: A Worldwide mapping of Education Programs. ICEGOV 2019: 378-386
2018
[c11]
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Gabriela Viale Pereira, Yannis Charalabidis, Charalampos Alexopoulos, Francesco Mureddu, Peter Parycek, Alexander Ronzhyn, Dimitris Sarantis, Leif Skiftenes Flak, Maria A. Wimmer:
Scientific foundations training and entrepreneurship activities in the domain of ICT-enabled governance. DG.O 2018: 98:1-98:2
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Charalampos Alexopoulos, Yannis Charalabidis, Nikolaos Vogiatzis, Dimitrios E. Kolokotronis:
A Taxonomy for Analysing Smart Cities Developments in Greece. ICEGOV 2018: 537-549
[c9]
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Zoi Lachana, Michalis Avgerinos Loutsaris, Charalampos Alexopoulos, Yannis Charalabidis:
"Peri Nomou" System: Automated Codification and Interrelation of Legal Elements Based on Text Mining. MCIS 2018: 10
[c8]
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Euripidis N. Loukis, Spyros Arvanitis, Charalampos Alexopoulos:
A Methodology for Economic Crisis Policy Analytics. MCIS 2018: 42
2017
[c7]
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Charalampos Alexopoulos, Vasiliki Diamantopoulou, Yannis Charalabidis:
Tracking the Evolution of OGD Portals: A Maturity Model. EGOV 2017: 287-300
2016
[j2]
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Charalampos Alexopoulos, Euripidis N. Loukis, Yannis Charalabidis:
A methodology for determining the value generation mechanism and the improvement priorities of open government data systems. Comput. Sci. Inf. Syst. 13(1): 237-258 (2016)
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Yannis Charalabidis, Charalampos Alexopoulos, Euripidis N. Loukis:
A taxonomy of open government data research areas and topics. J. Organ. Comput. Electron. Commer. 26(1-2): 41-63 (2016)
[c6]
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Yannis Charalabidis, Charalampos Alexopoulos, Vasiliki Diamantopoulou, Aggeliki Androutsopoulou:
An Open Data and Open Services Repository for Supporting Citizen-Driven Application Development for Governance. HICSS 2016: 2596-2604
2014
[c5]
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Charalampos Alexopoulos, Anneke Zuiderwijk, Yannis Charalabidis, Euripidis N. Loukis, Marijn Janssen:
Designing a Second Generation of Open Data Platforms: Integrating Open Data and Social Media. EGOV 2014: 230-241
[c4]
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Yannis Charalabidis, Euripidis N. Loukis, Charalampos Alexopoulos:
Evaluating Second Generation Open Government Data Infrastructures Using Value Models. HICSS 2014: 2114-2126
2013
[c3]
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Charalampos Alexopoulos, Lefkothea Spiliotopoulou, Yannis Charalabidis:
Open data movement in Greece: a case study on open government data sources. Panhellenic Conference on Informatics 2013: 279-286
2012
[c2]
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Yannis Charalabidis, Fenareti Lampathaki, Charalampos Alexopoulos, Panagiotis Kokkinakos, Sotirios Koussouris:
A Classification of Future Internet Enterprise Systems Projects. I-ESA 2012: 249-258
[c1]
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Charalampos Alexopoulos, Euripidis N. Loukis, Yannis Charalabidis, I. Tagkopoulos:
A Methodology for Evaluating PSI E-infrastructures Based on Multiple Value Models. Panhellenic Conference on Informatics 2012: 37-43

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