Welcome to

Prof. Vakali Athena's personal website

" I’m privileged by a profession which constantly evolves and opens research and innovation horizons. Being a professor at a Greek University has given me valuable knowledge and skills. Working with a vibrant worldwide network of colleagues, researchers and entrepreneurs offers strong empowering and serendipitous experiences. My vision is to encourage and motivate our bright young researchers to progress and excel with open minds and high ethical standards for establishing social good and sustainable Data Science and ICT solutions. "

" My vision is to encourage and motivate our bright young researchers to progress and excel with open minds and high ethical standards for establishing social good and sustainable Data Science and ICT solutions. "

About

About Me

Full Professor, Vice Chair (2017-2020), Faculty member, Informatics Department, Aristotle University of Thessaloniki, Greece
Leader of the Data and Web Science Research Lab - Datalab

  • Name: Athena Vakali
  • Office Address: Eth. Antistasis 16, Kalamaria, Thessaloniki
  • Email: avakali@csd.auth.gr
  • Phone: +30 2310998415
  • Skype: avakali

Education & Training

1993-1997

PhD degree in Informatics

School of Informatics, Aristotle University of Thessaloniki, Greece

Excellence Degree, grade 10 in 1-10 scale

1986-1988

MSc degree in Computer Science

Computer Science Dept., Purdue University, USA

Fulbright scholarship for USA studies

1981-1985

BSc degree in Mathematics

Dept. of Mathematics, Aristotle University of Thessaloniki, Greece

Excellence Degree, grade 8,85 in 1-10 scale

Work Experience

1997-today

Full Professor, Faculty Member

School of Informatics, Aristotle University of Thessaloniki, Greece

Leader of the Data and Web Science Research Lab - Datalab
Vice Chair (2017-2020)

1993-1997

IT Technical Administrator Staff

School of Informatics, Aristotle University of Thessaloniki, Greece
1990-1993

Computing Division Director

Research Programs Office, Aristotle University of Thessaloniki, Greece
1988-1990

Educator in Computing and Mathematics

American College Anatolia, Thessaloniki, Greece
1986-1988

Teaching & Research Assistant

Computer Science Dept., Purdue University, USA

During MSc studies

Research Focus

Prof. Vakali research efforts focus on Data Science disciplines with emphasis on Big Data analytics and Data technologies. Her research work spans from foundational principles (with algorithms and feature engineering approaches) to design and implementations of actual technologies, tools, and systems implemented in various domains. At her core research work, prof Vakali explores the : (i) dynamics and trends which drive online Web content and usage evolution; (ii) modelling and management of big data entities; (iii) knowledge extraction by appropriate graph mining and AI inspired techniques; and (iv) study of emerging data technologies from cloud to the edge, and their extend to decentralized (blockchain) frameworks. Her research work has valuable contributions to multiple domains since her research work is extensively validated by robust experimentation in social networks, health, energy, creative platforms, and smart cities. Under her lead, the Datalab research team is intensively involved in research and innovation actions with a focus on the next main topics:

  • Evolving big data analytics with various methodologies (community detection, graph mining, incremental clustering, data mining, machine learning, etc.) on multiple (Web logs, social networks, reviews, etc.) datasets targeting opinions, topics, emotions and latent knowledge detection from big data sources;
  • Social media and networks modelling and mining with usage and content summarization methodologies for topics and events detection in various contexts (geo-location, time, sentiment, etc). Emphasis on social networks trends and phenomena, such as social media fraud, and behavioural patterns revealing;
  • Smart cities and IoT data integration and summarization with focus on smart city data threads management and detection of communities, trends, events, and sentiment on geo-located data and on distributed smart city infrastructures;
  • Cloud to the edge and fog evolving data streams analytics with efforts on the design and implementation of cloud to the edge frameworks for health, wellbeing, energy, and social networks domains at which decentralized technologies are also explored and validated;
  • Social and sustainable innovation, creative and cultural platforms designs and implementations via data driven technologies which establish methods, tools and frameworks at which content and usage are reflected and analysed under ethical and protected data regulations and norms.

International Presence

Strong research collaborations and synergies capacity gained by more than 25 years of a strong academic career. Research and implementation projects skills gained by the coordination of many EU and national research programmes. Prof. Vakali has a very strong network due to both her academia research work (more than 200 co-authors in her published work) and to her multiple research and innovation projects coordination (more than 25 EU and national projects). Moreover, she has taken sabbatical leaves to Australia (University of South New Whales and University of Melbourne, 2006-2007), USA (Purdue University, 1999-2000) and short visits under bilateral projects to many Universities worldwide : Dept. of Computer Science and Engineering Jiao Tong, Shanghai University, China; Dept. of Computer Science of Boston University, USA; University of Magdeburg, Germany; Polytechnic University of Madrid, Spain; University of Claude Bernard Lyon, France; Charles University, Praha, Czech Republic, Zayed University, Dubai; University of Sabanci, Turkey; University of Chile, Chile; etc.

Scientific & Other Activities

Chairing & Keynote Speaches

  • Program Chair (WI 2019), IEEE/WIC/ACM International Conference on Web Intelligence 2019
  • General Chair of the 1st EAI International Conference on Future Internet (FI) Infrastructures and Enablers, (FINE 2016)
  • General Chair of the 5th International Conference on Model & Data Engineering (MEDI 2015)
  • Program Chair of the EU Network of Excellence 2nd Internet Science Conference (EINS 2015)
  • Workshops co-chair of the 24th International World Wide Web Conference (WWW 2015), the 16th, 17th, and 18th East-European Conference on Advances in Databases and Information Systems (ADBIS 2013, 2014, 2015), the 5th IEEE International Workshop on Content Delivery Networks (CDN 2010) in conjunction with CCGrid 2010
  • Program Chair of the 15th International Conference on Web Information System Engineering (WISE 2014), Thessaloniki, Greece, Oct 2014
  • Keynote and invited speaker at several International Conferences and events such as : the Marie Sklodowska Curie ETN training event on Journalism, Crowdsourcing & Data Exploration techniques for Citizens’ Awareness and Empowerment (2020), the IEEE/CAS School on “Building blocks for the Internet of Things” (2017), the DINO Research Group Lecture Series at Paris Descartes University, Paris (2016), the Zayed University MSc Programme Lecture series, Dubai (2016), the 4th International Conference on Web Intelligence, Mining and Semantics (WIMS 2014), the 18th East-European Conference on Advances in Databases and Information Systems (ADBIS 2014), the 8th Summer School on Applications of IoT and Wireless and Sensor Networks (Senzations 2013), as well as at the 16th International Database Engineering & Applications Symposium (IDEAS 2012)

Books, Proceedings, Special Issues

Guest-editor or co-chair in the following Journals and Conferences (Workshops):
  • Payam M. Barnaghi, Georg Gottlob, Yannis Manolopoulos, Theodoros Tzouramanis, Athena Vakali: IEEE/WIC/ACM International Conference on Web Intelligence (WI 2019), Thessaloniki, Greece, October 2019, ACM 2019
  • Payam M. Barnaghi, Georg Gottlob, Dimitrios Katsaros, Yannis Manolopoulos, Rahul Pandey, Theodoros Tzouramanis, Athena Vakali, 2019 IEEE/WIC/ACM International Conference on Web Intelligence, WI 2019, Thessaloniki, Greece, October 14-17, 2019 - Companion Volume
  • Nick Bassiliades, Mirjana Ivanovic, Margita Kon-Popovska, Yannis Manolopoulos, Themis Palpanas, Goce Trajcevski, Athena Vakali: New Trends in Database and Information Systems II - Selected papers of the 18th East European Conference on Advances in Databases and Information Systems and Associated Satellite Events, ADBIS 2014 Ohrid, Macedonia, September 7-10, 2014 Proceedings II. Advances in Intelligent Systems and Computing 312, Springer 2015
  • Thanassis Tiropanis, Athena Vakali, Laura Sartori, Pete Burnap: Internet Science - Second International Conference, INSCI 2015, Brussels, Belgium, May 27-29, 2015, Proceedings. Lecture Notes in Computer Science 9089, Springer 2015
  • Boualem Benatallah, Azer Bestavros, Barbara Catania, Armin Haller, Yannis Manolopoulos, Athena Vakali, Yanchun Zhang: Web Information Systems Engineering - WISE 2014 Workshops - 15th International Workshops IWCSN 2014, Org2 2014, PCS 2014, and QUAT 2014, Thessaloniki, Greece, October 2014, Revised Selected Papers. Lecture Notes in Computer Science 9051, Springer 2015
  • Barbara Catania, Tania Cerquitelli, Silvia Chiusano, Giovanna Guerrini, Mirko Kämpf, Alfons Kemper, Boris Novikov, Themis Palpanas, Jaroslav Pokorný, Athena Vakali: New Trends in Databases and Information Systems, 17th East European Conference on Advances in Databases and Information Systems, ADBIS 2013, Genoa, Italy, 2013. Proceedings II. Advances in Intelligent Systems and Computing 241, Springer 2014
  • Boualem Benatallah, Azer Bestavros, Yannis Manolopoulos, Athena Vakali, Yanchun Zhang: Web Information Systems Engineering - WISE 2014 - 15th International Conference, Thessaloniki, Greece, October 12-14, 2014, Proceedings, Parts I and II. Lecture Notes in Computer Science 8786, Springer 2014
  • Abdelkader Hameurlain, Josef Küng, Roland R. Wagner, Barbara Catania, Giovanna Guerrini, Themis Palpanas, Jaroslav Pokorný, Athena Vakali: Transactions on Large-Scale Data- and Knowledge-Centered Systems XV - Selected Papers from ADBIS 2013 Satellite Events. Lecture Notes in Computer Science 8920, Springer 2014
  • Athena Vakali and Leonidas Anthopoulos Workshop on “Modelling, Mining, Managing smart city data flows”, 3M4city 2014, 4th International Conference on Web Intelligence, Mining and Semantics (WIMS 2014)
  • Hakim Hacid , Shengbo Guo, Athena Vakali, Workshop on “Mining Social Networks Dynamics” at the 2013 WWW Conference, Rio de Janeiro, Brazil, May 2013
  • Athena Vakali and Hakim Hacid, Workshop on “Social Web Analytics for Trend Detection”, at the 13th International Conference on Web Information System Engineering (WISE 2012), Paphos, Cyprus, 2012
  • Jaroslav Pokorny, Athena Vakali and Vaclav Snasel, Workshop on “Social Data Processing”, at the 16th East-European Conference on Advances in Databases and Information Systems, September 2012
Books (edited and chapters), Encyclopedia Articles & Special Issues (co-edited):
  • Athena Vakali and Vaia Moustaka : City dynamics tracking based on citizens data and sensing analytics. Smart Cities in the Post-algorithmic Era. Edward Elgar, USA, 2019
  • Athena Vakali: “Access Control Policy Languages”. Encyclopedia of Database Systems (2nd ed.) 2018
  • Athena Vakali: Security Services. Encyclopedia of Database Systems (2nd ed.) 2018
  • Athena Vakali: Evolving Social Graph Clustering. Encyclopedia of Social Network Analysis and Mining. 2nd Ed. 2018
  • Athena Vakali: Flickr and Twitter Data Analysis. Encyclopedia of Social Network Analysis and Mining. 2nd Ed. 2018
  • Lara Srivastava and Athena Vakali. 2012. Towards a narrative-aware design framework for smart urban environments. The Future Internet, F. Alvarez et al. (Eds.), Lecture Notes in Computer Science. Vol. 7281. Springer
  • Athena Vakali, Lakhmi C. Jain: New Directions in Web Data Management 1. Studies in Computational Intelligence 331, Springer, 2011
  • Sivasubramanian, D. Katsaros, G. Pallis, A. Vakali. IEEE Network, special issue on "Cloud Computing", 2011
  • Spiros Nikolopoulos, Eirini Giannakidou, Ioannis Kompatsiaris, Ioannis Patras, Athena Vakali: Combining Multi-modal Features for Social Media Analysis. Social Media Modeling and Computing 2011: 71-96
  • Symeon Papadopoulos, Athena Vakali, Yiannis Kompatsiaris: Community Detection in Collaborative Tagging Systems. Community-Built Databases 2011: 107-131
  • Athena Vakali: Innovations and Trends in Web Data Management. New Directions in Web Data Management 1 2011: 1-18
  • Maria Giatsoglou, Symeon Papadopoulos, Athena Vakali: Massive Graph Management for the Web and Web 2.0. New Directions in Web Data Management 1 2011: 19-58
  • Spiros Nikolopoulos, Elisavet Chatzilari, Eirini Giannakidou, Symeon Papadopoulos, Ioannis Kompatsiaris, Athena Vakali: Leveraging Massive User Contributions for Knowledge Extraction. Next Generation Data Technologies for Collective Computational Intelligence 2011: 415-443
  • Giancarlo Fortino, Carlo Mastroianni, Al-Mukaddim Khan Pathan, Athena Vakali: Proceedings of the 4th Workshop on the Use of P2P, GRID and Agents for the Development of Content Networks, UPGRADE-CN'09, held with 18th International Symposium on High-Performance Distributed Computing, ACM 2009
  • M. D. Dikaiakos, D. Katsaros, G. Pallis, A. Vakali. IEEE Internet Computing special issue (Sep. 2009) on Cloud Computing
  • Buyya, R., Pathan, Α., Vakali, A. (eds.): “Content Delivery Networks: Principles and Paradigms”, Springer Verlag, LNCS Vol.XVI, 2008
  • Vakali, Athena, and Pallis George (editors) : Web Data Management Practices: Emerging Techniques and Technologies: Emerging Techniques and Technologies. IGI Global, 2006
  • George Pallis, Konstantina Stoupa, Athena Vakali: Storage and Access Control Issues for XML Documents. Encyclopedia of Information Science and Technology (V) 2005: 2616-2621

Committees & Memberships

  • Associate Member at the EU European Big Data Value Strategic Research Innovation Association -BDVA, (since 2015)
  • National Representative at the EU Open and Agile Smart Cities Council - OASC, (since 2016)
  • Member at the GRNET – National Infrastructures for Research and Technology Executive Management Board (2019-2020)
  • Expert member at the Next Generation Internet (NGI) European initiative for a Human Internet that respects the fundamental values of privacy, participation and diversity (views)
  • Founding Member of the Greek Chapter of the ACM-W (ACM's Council on Women in Computing), active member (since 2018)
  • Member of the ACM/IEEE/WIC Web Intelligence Technical Committee (WI -TC) and WI Conference Steering Committee (since 2019)
  • Active evaluator and Reviewer in multiple EU H2020, FP7, and International projects (since 2010)
  • Active member in ACM, IEEE/IEEE CS Societies
  • Chairing and member at several Committees of the Aristotle University (AUTH) and its School of Informatics (eg Faculty of Science Library and Information Centre, AUTH IT Center Steering Committee, AUTH Research Programmes Assembly member; AUTH Day Care Unit; School of Informatics website and dissemination/MSc program chairing/Staff selection Committees etc)
  • Appointed as member in the Future Internet Assembly Steering Committee (2012-14) for her achievements in Future Internet and Networking (FIA Committee had 10 members from both academia and the industry and have shown European excellence)
  • Supervisor in 10 completed PhD theses in the area of Data Science and Web data analytics since 2005, and currently supervising 7 PhD candidates and 10 MSc theses
  • PC member to many International Conferences, Workshops, Tutorials, etc (she has been a PC member at more than 90 International Conferences and Workshops since 2005)
  • Organized and presented tutorials about “Sentiment analysis and Fraud detection” (DINO, WIMS), “Detecting, Understanding and Exploiting Web communities” at the 18th International World Wide Web Conference, a tutorial about "Clustering on the Web: Theory and Practices" at the ADBIS Conference,, and a tutorial on “Learning from Evolving Data” at the ECML/PKDD Conference
  • Member of the editorial board of “Web Intelligence Journal”, the "Computers & Electrical Engineering" Journal (Elsevier) since 2007 the International Journal of Grid and High Performance Computing (IGI publishing) and the Web Intelligence Journal, since 2009
  • Member of numerous election boards, advisory and steering Committees for faculty positions at Computer Science and Engineering Schools nationally and abroad

Awards & Excellence recognition

since 2020

MSc Scholarship programme assigned for supervision

DEEPMIND and MSc on Data and Web Science (DWS) MSc Scholarship programme, Aristotle University of Thessaloniki, Greece

In recognition to Prof. A. Vakali's research work and her strong mentorship impact on DWS MSc students

2020

Excellence Award 2020

Aristotle University of Thessaloniki, Greece

For Prof. A. Vakali's outstanding performance in terms of research projects funding excellence and her capacity to attract research and innovation funds from EU and national sources

2020

1st place in the Best Paper Awards

10th International Conference on Web Intelligence, Mining and Semantics, organized by the Association for Computing Machinery

The paper "TRIAGE: Temporal Twitter attribute graph patterns”, co-authored by Ilias Dimitriadis, Marinos Poiitis, Christos Faloutsos and Athena Vakali

2020

1st place in the Best Paper Awards

12th International Conference on Management of Digital EcoSystems, organized by the Association for Computing Machinery

The paper "Bot-Detective: An explainable Twitter bot detection service with crowdsourcing functionalities", co-authored by Maria Kouvela, Ilias Dimitriadis and Athena Vakali

2019

Marie Skłodowska Curie Scholarship for advanced research visit in UK

under the premises of LStech under the ENCASE project, Milton Keynes, UK
2018

Faculty Scholarship

for participating at the Grace Hopper Celebration for Women Technology pioneers 2018, Houston, USA
2011

Best Demo award

International Conference on Multimedia Retrieval 2011, organized by the American company of Computer Machines at Trento, Italy

The paper “ClustΤour: City Exploration by use of Spatio-temporal Analysis and Clustering of User Contributed Photos”, co-authored by S. Papadopoulos, C. Zigolis, S. Kapiris, I. Kompatsiaris and A. Vakali

2010

Best paper award

International Journal of Data Warehousing and Mining

The paper entitled "The Dynamics of Content Popularity in Social Media" co-authored by S. Papadopoulos, A. Vakali and I. Kompatsiaris

2010

Best paper award

International Journal of Web Information Systems

The paper entitled "A New Approach to Web Users Clustering and Validation: a Divergence-based Scheme", co-authored by V. Koutsonikola, S. Petridou, A. Vakali and G. Papadimitriou

2009

ranked at top (#32) accessed articles by IEEE for Sept. 2009, 1st for IEEE Internet Computing for Sept. 2009

IEEE Organization

The paper M. Dikaiakos,G. Pallis, D. Katsaros, P. Mehra, Hewlett-Packard Labs, A. Vakali, “Cloud Computing”, September/October 2009 (Vol. 13, No. 5) pp. 10-13

Teaching

Teaching

Undergraduate Courses and BSc Theses

  • Operating Systems
    5th semester of Informatics undergraduate course program
    School of Informatics, Aristotle University (since 1997)
  • Web Information Systems
    6th semester of Informatics undergraduate course program
    School of Informatics, Aristotle University (since 2003)
  • Distributed Operating Systems
    6th semester of Informatics undergraduate course program
    School of Informatics, Aristotle University (1997-2019)
  • Internet Technologies, Services and Applications
    6th semester of Informatics undergraduate course program
    School of Informatics, Aristotle University (1997-2002)
  • Supervised more than 100 diploma theses
    School of Informatics, Aristotle University (since 1997)

Graduate Courses

  • Social Networks analysis
    1st semester of "Data and Web Science" MSc course program
    School of Informatics, Aristotle University (since 2015)
  • Web Data Mining
    2nd semester of "Data and Web Science" (earlier "Information and Communication Technology Systems") MSc course program
    School of Informatics, Aristotle University (since 2004)
  • Decentralized technologies
    2nd semester of "Data and Web Science" MSc course program
    School of Informatics, Aristotle University (since 2018)
  • Social networks technology for marketing
    2nd semester of "Management and Information Systems" Joint MSc course program
    School of Informatics, Aristotle University (since 2018)
  • Web Information frameworks
    2nd semester of "Informatics and Management" Joint MSc course program
    School of Informatics, Aristotle University (2003-2018)
  • Web Information Systems
    1st semester of "Information and Communication Technology Systems" MSc course program
    School of Science & Technology, International Hellenic University (2010-2014)
  • Advances in Software Engineering
    2nd year of Information Systems MSc course program
    Hellenic Open University (2005-2014)
  • Supervised more than 60 MSc level diploma thesis
    Aristotle University, Hellenic International University & Hellenic Open University
  • Supervised 10 completed PhD dissertations
    Mostly in the topics of Web Information Systems and Data Analytics
    Most of former PhD students are already faculty members or advanced experts in national and worldwide Universities, Research Centres and Companies
  • Currently (2020-2021) in collaboration with 5 post-doc level researchers and supervising 7 PhD students and 12 MSc students' theses

Research Projects

Research Projects

Some of Prof. Vakali Athena's recent Research Projects.
Role : coordinator, scientific and research supervision, design and implementation of Data Science tasks, sustain projects collaboration networks

CLINAPP

Clinapp : An advanced AI-based patient appointment scheduler for smart management of patients and medical data

GR Research-Create-Innovate Action
2020-2023

For more information please visit Datalab's Research Projects area.

Publications

Publications

In summary, prof. Vakali has (co-)authored 5 books and more than 15 book chapters in edited books from Springer and IGI, and more than 60 papers in refereed journals most of them at high quality journals, such as ACM Transactions on the Web, ACM Computing Surveys, ACM Transactions on Modeling and Computer Simulation, IEEE Transactions on Knowledge and Data Engineering, IEEE Internet Computing, IEEE System Man & Cybernetics, World Wide Web Journal, etc. More than 100 papers in International conferences and editor (PC co-chair) at more than 15 prestigious International Conferences (eg IEEE/WIC/ACM International Conference on Web Intelligence, WI 2019, Web Information Systems Engineering - WISE 2014 , etc) . Her proceedings publications place emphasis on Web data and analytics technologies, Social networks, and data science topics such as the Web Intelligence (ACM/WI), Web Information Systems Engineering (WISE), the ACM Hypertext Conference, the Social Networks and Social Media Mining on the Web in conjunction with DASFAA, the Conference for Data Warehousing and Knowledge Discovery (DaWaK), the ACM Conference on Recommender systems (RecSys), etc. Professor Vakali has a wide and strong co-authorship network with 217 unique co-authors (according to DBLP co-authors index) who originate from worldwide research affiliations.
Her publications have attracted 7970 citations, with h-index 37 and i10-index 99, according to Google Scholar (November 2020).

Publications quality: Prof. Vakali has published more than 60 papers in scientific journals with peer-reviewing process. According to the latest Journal Citation Reports (ISI 2020), most of her published journals have impact factor higher than two and some of her papers are in prestigious journals (such as ACM Computing Surveys, ACM Transactions of the Web, IEEE Internet Computing, Experts Systems with Applications, etc). Moreover, a significant number of more than 100 papers in international conferences have very competitive acceptance rate lower than 25% such as: WebSci Conf, ACM HyperText (HT), WWW Companion, ACM Web Intelligence (WI), WISE, International Conference on Web and Social Media (ICWSM), etc. Finally, six of her papers received the best paper award in International Conferences and journals.

An indicative list of publications (last 5 years) is given next.
More info for her publications at:
https://dblp.org/pid/v/AthenaVakali.html
https://scholar.google.gr/citations?user=sq_u8P0AAAAJ&hl=en
https://datalab.csd.auth.gr/publications/

2021 Publications

  • An exploratory approach for urban data visualization and spatial analysis with a game engine
    Multimedia Tools and Applications (2021). Artemis Psaltoglou, Athena Vakali
  • I'm simply the best, better than all the rest: Narcissistic leaders and corporate fundraising success
    Personality and Individual Differences 168 (2021). Dritjon Gruda, Jim McCleskey, Dimitra Karanatsiou and Athena Vakali

2020 Publications

  • Bot-Detective: An explainable Twitter bot detection service with crowdsourcing functionalities
    MEDES 2020. (Best Paper Award) 12th International Conference on Management of Digital EcoSystems, ACM Digital Library 2020. Maria Kouvela, Ilias Dimitriadis and Athena Vakali
  • A Methodology for Runtime Detection and Extraction of Threat Patterns
    SN Comput. Sci. 1(5): 238 (2020). Christos Bellas, Athanasios Naskos, Georgia Kougka, George Vlahavas, Anastasios Gounaris, Athena Vakali, Apostolos Papadopoulos, Evmorfia Biliri, Nefeli Bountouni, Gustavo Gonzalez Granadillo
  • DeCStor: A Framework for Privately and Securely Sharing Files Using a Public Blockchain
    DS 2020: 280-293. Maria Siopi, George Vlahavas, Kostas Karasavvas, Athena Vakali
  • DeTRACT: a decentralized, transparent, immutable and open PKI certificate framework
    International Journal of Information Security, 1-18. T Sermpinis, G Vlahavas, K Karasavvas, A Vakali
  • TRIAGE: Temporal Twitter attribute graph patterns
    WIMS 2020: 44-53. Ilias Dimitriadis, Marinos Poiitis, Christos Faloutsos, Athena Vakali
  • CityDNA Dynamics: A Model for Smart City Maturity and Performance Benchmarking
    WWW (Companion Volume) 2020: 829-833. Vaia Moustaka, Antonis Maitis, Athena Vakali, Leonidas G. Anthopoulos
  • On the Aggression Diffusion Modeling and Minimization in Online Social Networks
    CoRR abs/2005.10646 (2020). Marinos Poiitis, Athena Vakali, Nicolas Kourtellis
  • My tweets bring all the traits to the yard: Predicting personality and relational traits in Online Social Networks
    CoRR abs/2009.10802 (2020). Dimitra Karanatsiou, Pavlos Sermpezis, Jon Gruda, Konstantinos Kafetsios, Ilias Dimitriadis, Athena Vakali
  • I'm simply the best, better than all the rest: Narcissistic leaders and corporate fundraising success
    Personality and Individual Differences 168, 110317. D Gruda, J McCleskey, D Karanatsiou, A Vakali

2019 Publications

  • City dynamics tracking based on citizens’ data and sensing analytics
    Smart Cities in the Post-algorithmic Era. A Vakali, V Moustaka
  • A Systematic Review for Smart City Data Analytics
    ACM Comput. Surv. 51(5): 103:1-103:41 (2019). Vaia Moustaka, Athena Vakali, Leonidas G. Anthopoulos
  • Εnhancing social networking in smart cities: Privacy and security borderlines
    Technological Forecasting and Social Change 142, 285-300. V Moustaka, Z Theodosiou, A Vakali, A Kounoudes, LG Anthopoulos
  • Behind the cues: A benchmarking study for fake news detection
    Expert Syst. Appl. 128: 201-213 (2019). Georgios Gravanis, Athena Vakali, Konstantinos I. Diamantaras, Panagiotis Karadais
  • Introduction to the special issue on social data analytics in medicine and healthcare
    Int. J. Data Sci. Anal. 8(4): 325-326 (2019). Alejandro Rodríguez González, Athena Vakali, Miguel Angel Mayer, Takashi Okumura, Ernestina Menasalvas Ruiz, Myra Spiliopoulou
  • Detecting Cyberbullying and Cyberaggression in Social Media
    ACM Trans. Web 13(3): 17:1-17:51 (2019). Despoina Chatzakou, Ilias Leontiadis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali, Nicolas Kourtellis
  • Software technologies skills: A graph-based study to capture their associations and dynamics
    BCI 2019: 22:1-22:7. Konstantinos Georgiou, Maria Papoutsoglou, Athena Vakali, Lefteris Angelis
  • A crowdsourcing approach to advance collective awareness and social good practices
    WI (Companion) 2019: 200-207. Ilias Dimitriadis, Vasileios G. Psomiadis, Athena Vakali
  • A Unified Deep Learning Architecture for Abuse Detection
    WebSci 2019: 105-114. Antigoni-Maria Founta, Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Athena Vakali, Ilias Leontiadis
  • TOMI: A Framework for Smart Tourism on the Move Innovation
    WWW (Companion Volume) 2019: 123-129. Vaia Moustaka, Athena Vakali, Nikos Zikos, Theoklis Tsirakidis, Leonidas G. Anthopoulos
  • Cloud-based architectures for geo-located blogosphere dynamics detection
    Journal of Smart Cities 2 (1), 28-40. A Vakali, S Antaris, M Giatsoglou

2018 Publications

  • Large Scale Crowdsourcing and Characterization of Twitter Abusive Behavior
    ICWSM 2018: 491-500. Antigoni-Maria Founta, Constantinos Djouvas, Despoina Chatzakou, Ilias Leontiadis, Jeremy Blackburn, Gianluca Stringhini, Athena Vakali, Michael Sirivianos, Nicolas Kourtellis
  • Demo: Diligent - An OSN Data Integration System Based on Reactive Microservices
    SMARTCOMP 2018: 285-287. Alexandros Tsilingiris, Ilias Dimitriadis, Athena Vakali, Georgios Andreadis
  • Demo: Bostonhood: A Multi-criteria Platform for Ranking City Neighborhoods
    SMARTCOMP 2018: 288-290. Despoina Kazepidou, Maria Rousi, Vasiliki Gkatziaki, Athena Vakali
  • Fake Review Detection via Exploitation of Spam Indicators and Reviewer Behavior Characteristics
    SOFSEM 2018: 581-595. Ioannis Dematis, Eirini D. Karapistoli, Athena Vakali
  • LOCAST: Optimal Location Casting by Crowdsourcing and Open Data Integration
    WI 2018: 407-412. Konstantinos Platis, Ilias Dimitriadis, Athena Vakali
  • Smart Cities at Risk!: Privacy and Security Borderlines from Social Networking in Cities
    WWW (Companion Volume) 2018: 905-910. Vaia Moustaka, Zenonas Theodosiou, Athena Vakali, Anastasis Kounoudes
  • Εnhancing Social Networking in Smart Cities: Privacy and Security Borderlines
    Technological Forecasting & Social Change, Elsevier, 2018. Vaia Moustaka, Zenonas Theodosiou, Athena Vakali, Anastasis Kounoudes, Leonidas G. Anthopoulos
  • Access Control Policy Languages
    Encyclopedia of Database Systems (2nd ed.) 2018. Athena Vakali
  • Security Services
    Encyclopedia of Database Systems (2nd ed.) 2018. Athena Vakali
  • Evolving Social Graph Clustering
    Encyclopedia of Social Network Analysis and Mining. 2nd Ed. 2018. Athena Vakali
  • Flickr and Twitter Data Analysis
    Encyclopedia of Social Network Analysis and Mining. 2nd Ed. 2018. Athena Vakali
  • A Unified Deep Learning Architecture for Abuse Detection
    CoRR abs/1802.00385 (2018). Antigoni-Maria Founta, Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Athena Vakali, Ilias Leontiadis
  • Large Scale Crowdsourcing and Characterization of Twitter Abusive Behavior
    CoRR abs/1802.00393 (2018). Antigoni-Maria Founta, Constantinos Djouvas, Despoina Chatzakou, Ilias Leontiadis, Jeremy Blackburn, Gianluca Stringhini, Athena Vakali, Michael Sirivianos, Nicolas Kourtellis
  • Fake review detection via exploitation of spam indicators and reviewer behavior characteristics
    International Conference on Current Trends in Theory and Practice of Informatics, pp. 581-595. I Dematis, E Karapistoli, A Vakali

2017 Publications

  • Experience of emotion in face to face and computer-mediated social interactions: An event sampling study
    Comput. Hum. Behav. 76: 287-293 (2017). Konstantinos Kafetsios, Despoina Chatzakou, Nikolaos Tsigilis, Athena Vakali
  • Sentiment analysis leveraging emotions and word embeddings
    Expert Syst. Appl. 69: 214-224 (2017). Maria Giatsoglou, Manolis G. Vozalis, Konstantinos I. Diamantaras, Athena Vakali, George Sarigiannidis, Konstantinos Ch. Chatzisavvas
  • Detecting variation of emotions in online activities
    Expert Syst. Appl. 89: 318-332 (2017). Despoina Chatzakou, Athena Vakali, Konstantinos Kafetsios
  • DynamiCITY: Revealing city dynamics from citizens social media broadcasts
    Inf. Syst. 71: 90-102 (2017). Vasiliki Gkatziaki, Maria Giatsoglou, Despoina Chatzakou, Athena Vakali
  • Class-based Prediction Errors to Detect Hate Speech with Out-of-vocabulary Words
    ALW@ACL 2017: 36-40. Joan Serrà, Ilias Leontiadis, Dimitris Spathis, Gianluca Stringhini, Jeremy Blackburn, Athena Vakali
  • Hate is not Binary: Studying Abusive Behavior of #GamerGate on Twitter
    HT 2017: 65-74. Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
  • Mean Birds: Detecting Aggression and Bullying on Twitter
    WebSci 2017: 13-22. Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
  • Detecting Aggressors and Bullies on Twitter
    WWW (Companion Volume) 2017: 767-768. Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali
  • CityDNA: Smart City Dimensions' Correlations for Identifying Urban Profile
    WWW (Companion Volume) 2017: 1167-1172. Vaia Moustaka, Athena Vakali, Leonidas G. Anthopoulos
  • Vol4All: A Volunteering Platform to Drive Innovation and Citizens Empowerment
    WWW (Companion Volume) 2017: 1173-1178. Athena Vakali, Ioannis Dematis, Athanasios Tolikas
  • Measuring #GamerGate: A Tale of Hate, Sexism, and Bullying
    WWW (Companion Volume) 2017: 1285-1290. Despoina Chatzakou, Nicolas Kourtellis, Jeremy Blackburn, Emiliano De Cristofaro, Gianluca Stringhini, Athena Vakali

2016 Publications

  • Early malicious activity discovery in microblogs by social bridges detection
    ISSPIT 2016:132-137, Antonia Gogoglou, Zenonas Theodosiou, Tasos Kounoudes, Athena Vakali, Yannis Manolopoulos
  • A multi-layer software architecture framework for adaptive real-time analytics
    IEEE BigData conference, 2016. Athena Vakali, Paschalis Korosoglou, Pavlos Daoglou
  • PerSaDoR: Personalized social document representation for improving web search
    Information Sciences 369:614-633, 2016. Mohamed Reda Bouadjenek, Hakim Hacid, Mokrane Bouzeghoub, Athena Vakali
  • A distributed framework for early trending topics detection on big social networks data threads
    INNS Conference on Big Data, 2016. Athena Vakali, Nikolaos Kitmeridis, Maria Panourgia
  • Smart Cities Tales and Trails
    International Conference on Internet Science, 2016. Athena Vakali, Angeliki Milonaki, Ioannis Gkrosdanis
  • CityPulse: A Platform Prototype for Smart City Social Data Mining
    Journal of the Knowledge Economy, 2016. Maria Giatsoglou, Despoina Chatzakou, Vasiliki Gkatziaki, Athena Vakali, Leonidas Anthopoulos

2015 Publications

  • Multispot: Spotting sentiments with semantic aware multilevel cascaded analysis
    DaWaK, 2015. Despoina Chatzakou, Nikolaos Passalis, Athena Vakali
  • User communities evolution in microblogs: A public awareness barometer for real world events
    WWW 18(5):1269-1299, 2015. Maria Giatsoglou, Despoina Chatzakou, Athena Vakali
  • Harvesting Opinions and Emotions from social media textual resources
    IEEE Internet Computing, 2015. Despoina Chatzakou, Athena Vakali
  • Automated Design in the Cloud
    International Journal of Future Computer and Communication, 2015. Georgios Andreadis, Konstantinos-Dionysios Bouzakis, Athina Vakali, Konstantinos Stamos
  • ND-Sync: Detecting Synchronized Fraud Activities
    PAKDD, 2015. Maria Giatsoglou, Despoina Chatzakou, Neil Shah, Alex Beutel, Christos Faloutsos, Athena Vakali
  • Retweeting activity on Twitter: signs of deception
    PAKDD, 2015. Maria Giatsoglou, Despoina Chatzakou, Neil Shah, Christos Faloutsos, Athena Vakali
  • Exploriometer: Leveraging Personality Traits for Coverage and Diversity Aware Recommendations
    WWW(Companion Volume), 2015. Evangelos Chatzicharalampous, Zigkolis Christos, Athena Vakali
  • Internet Science - Second International Conference, INSCI 2015, Brussels, Belgium, May 27-29, 2015, Proceedings
    Lecture Notes in Computer Science 9089, Springer 2015. Thanassis Tiropanis, Athena Vakali, Laura Sartori, Pete Burnap
  • Web Information Systems Engineering - WISE 2014 Workshops
    Lecture Notes in Computer Science 9051, 2015. Boualem Benatallah, Azer Bestavros, Barbara Catania, Armin Haller, Yannis Manolopoulos, Athena Vakali, Yanchun Zhang
  • Professional profiles and personality traits towards social network team building
    Technical Sciences, 2015. Orestes Evangelinos, Christos Zigkolis, Athena Vakali
  • New Trends in Database and Information Systems II
    Advances in Intelligent Systems and Computing 312, Springer 2015. Nick Bassiliades, Mirjana Ivanovic, Margita Kon-Popovska, Yannis Manolopoulos, Themis Palpanas, Goce Trajcevski, Athena Vakali

Contact

Contact Me

Office Address

Eth. Antistasis 16, Kalamaria, Thessaloniki

Contact Number

+30 2310998415

Email Address

avakali@csd.auth.gr