who I am

Christina Katsini

User Experience Researcher

Hello! I am a User Experience Researcher and Designer at Human Opsis and a collaborating researcher at Industrial Systems Institute (Athena Research Center). My current research focuses on investigating the effects of human factors and design characteristics of graphical user authentication schemes on password strength through monitoring user's visual behaviour during password creation. My recent research also focuses on the cybersecurity aspect of interactive systems in Internet-of-Vehicles (IoV) environments.

Experience

Work experience

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Collaborating Researcher

2020 - present / Industrial Systems Institute (Athena RC)

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UX Researcher and Designer

2014 - present / Human Opsis

UX Researcher and Designer

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IT and Customer Support

2017 / Library & Information Center, University of Patras

IT and Customer Support

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Collaborating Researcher

2016 / University of Patras

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UX Consultant

2013 - 2014 / Nomensa

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User Experience (UX) Designer

2012 - 2013 / Schumacher Institute

National/EU projects

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BLUEfasma

2022 - present / University of Patras / EU funded under Interreg MED programme

BLUEfasma integrates and implements Circular Economy (CE) principles in the key blue growth sector of fishing/aquaculture; to benefit Mediterranean insular, island and coastal areas in a novel, innovative way. Its overall objective is to empower the innovation capacity of SMEs, maritime clusters/networks, Public Authorities to boost blue CE growth in insular, island and coastal areas.

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nIoVe

2020 - 2022 / Industrial Systems Institute (Athena RC) / EU funded under Horizon 2020

nIoVe project is making a step-change in Europe in bringing down the number of fatalities, reducing harmful emissions from transport work and reducing congestion within urban environments. The aim of nIoVe is to detect cyber-attacks in realtime while simultaneously preventing them. Regarding the automotive market, nIoVe purpose to uptake the innovative cybersecurity solutions for the protection of all CAVs and infrastructure in the IoV network against complex cyber-attacks.

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CR-PLAY

2016 / University of Patras / EU funded under FP7-ICT

Capture Reconstruct Play - is a name that combines the core elements of the CR-Play project. The key idea is to create content (semi-)automatically, simply by using photographs or video, building on the emerging image based technology. Game developers will be able to capture and reconstruct houses, buildings, trees, cars and other real life elements by first simply taking a few sequences of photos and videos which will then be processed by the semi-automatic software created in the project. In CR-PLAY, we will expand and adapt technologies based on Image Based Modelling and Rendering (IBR) and Video Based Modelling and Rendering (VBR) which will serve as backbone technologies for the project.

Teaching Experience

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Teaching/Laboratory Assistant

2016 - 2020 / University of Patras

Teaching/Laboratory assistant for the undergraduate units 'Human Computer Interaction', 'Web Programming', and 'Introduction to Electical and Computer Engineering' and the postgraduate unit 'Cognitive Ergonomics' of Electrical and Computer Engineering Department of University of Patras.

Education

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MSc in Human-Computer Interaction

2011 - 2012 / University of Bath

Thesis: 'Study of human behavior in collaborative document triage' supervised by Prof. Stephen J. Payne and Dr Claire Willis

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Integrated Master (MEng) in Electrical and Computer Engineering

2003 - 2011 / University of Patras

Thesis: 'Study of the interaction with laptops with the use of stylus' supervised by Prof. Nikolaos Avouris and Irene-Angelica Chounta.

More info about me

Scientific community service

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Organizing Committees
  • EyeSec 2021 (co-located with ACM ETRA 2021)
  • EyeSec 2020 (co-located with ACM ETRA 2020)
  • Smart society and economy: Goals and perspectives in Western Greece (2019)

Program Committees
  • ACM ETRA 2019
  • OzCHI 2019

Conference Reviewing
  • ACM CHI '18, '19
  • ACM CHI PLAY '18
  • ACM CSCW '18
  • ACM ETRA '18, '19
  • ACM IDC '19
  • ACM MobileHCI '17
  • COGAIN '18

Journal Reviewing
  • Computers & Security (Elsevier)
  • Journal of Network and Computer Applications (Elsevier)
  • Human-centric Computing and Information Sciences (Springer)

Other

I'm a member of the Usability Observatory Greece (2016 - present), a partnership between academic and research teams for improving digital services of the public sector of Greece. I'm a member of the Standing Committee of New Technologies, New Materials, and Technological Education (2017 - present) of Technical Chamber of Greece / Regional Department of Western Greece.

Professional societes

Awards and other happy moments

Awards

Award: Mindspace Challenge (2017) - Top 3

Mindspace Challenge (2017) - Top 3

Our team Moment Biokinetics (N. Michalopoulos, G. Raptis, C. Katsini, M. Mamalakis and Dr T. Chrysikos) placed in the top-3 and qualified for the National Finals. The primary goal of our team is to improve human motion and athletic performance via personalized recommendations.
Award: Falling Walls Lab Greece (2016) - 1st place

Falling Walls Lab Greece (2016) - 1st place

Our team (Dr. T. Chrysikos, I. Zisi, Prof. S. Kotsopoulos, C. Katsini, and G. Raptis) won the 1st prize in the Falling Walls Lab Greece in 2016 and qualified for the International Falling Walls Lab Final in Berlin (Germany). Our project titled 'Breaking the Wall of Pancreas E-Health Diagnostics'.
Award: Falling Walls Lab Greece (2016) - 2nd place

Falling Walls Lab Greece (2016) - 2nd place

Our team (N. Michalopoulos, G. Raptis, C. Katsini, and Dr. T. Chrysikos) won the 2nd prize in the Falling Walls Lab Greece in 2016 and qualified for the International Falling Walls Lab Final in Berlin (Germany). Our project titled 'Breaking the Wall of Kinetic Dysfunction'.

Paper awards

Award: CHI '20 - Honorable mention

CHI '20 - Honorable mention

Our paper 'The Role of Eye Gaze in Security and Privacy Applications: Survey and Future HCI Research Directions' received honorable mention in ACM CHI 2020. Check the paper here.
Award: UMUAI James Chen Award 2019

UMUAI James Chen Award 2019

Our paper 'A cognition-centered personalization-framework for cultural-heritage content' received the UMUAI James Chen Award for the best paper of 2019. Check the paper here.

Publications and Works

Conferences

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FoRePlan: Supporting Digital Forensics Readiness Planning for Internet of Vehicles

C Katsini, GE Raptis, C Alexakos, D Serpanos

In 25th Pan-Hellenic Conference on Informatics (PCI '21). Pages 369-374. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3503823.3503891

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Towards Automated Matching of Cyber Threat Intelligence Reports based on Cluster Analysis in an Internet-of-Vehicles Environment

GE Raptis, C Katsini, C Alexakos

In 2021 IEEE International Conference on Cyber Security and Resilience (CSR). Pages 366-371. DOI: 10.1109/CSR51186.2021.9527983

Presented in IEEE International Conference on Cyber Security and Resilience / Workshop on Actionable Cyber Threat Intelligence (ACTI) / Virtual Event (originally Rhodes, Greece) / July 28, 2021

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Introducing Privacy Preservation in Personalized Cultural Heritage Applications

G Kavvetsos, C Katsini, GE Raptis

In Adjunct Proceedings of the 29th ACM Conference on User Modeling, Adaptation and Personalization (UMAP '21). Pages 194-198. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3450614.3463388

Presented in the 12th Workshop on Personalized Access to Cultural Heritage (PATCH), co-located with 2021 ACM User Modeling, Adaptation and Personalization (UMAP 2021) / Virtual Event (originally Utrecht, the Netherlands) / June 21, 2021.

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Analyzing Scanpaths From A Field Dependence-Independence Perspective When Playing A Visual Search Game

GE Raptis, C Katsini

In ACM Symposium on Eye Tracking Research and Applications (ETRA '21 Short Papers). Article 37. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3448018.3459655

Presented in 2nd Eye Tracking in Games and Play (PLEY) Workshop, co-located with 2021 ACM Symposium on Eye Tracking Research and Applications (ETRA) / Virtual Event (originally Stuttgart, Germany) / May 27, 2021.

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Eye-GUAna: Higher Gaze-Based Entropy and Increased Password Space in Graphical User Authentication Through Gamification

C Katsini, GE Raptis, AJ Cen, NA Gamagedara Arachchilage, LE Nacke

In ACM Symposium on Eye Tracking Research and Applications (ETRA '21 Short Papers). Article 22. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3448018.3458615

Presented in the 2021 Workshop on Eye-Gaze for Security Applications (EyeSec), co-located with 2021 ACM Symposium on Eye Tracking Research and Applications (ETRA) / Virtual Event (originally Stuttgart, Germany) / May 27, 2021.

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Better, Funner, Stronger: A Gameful Approach to Nudge People into Making Less Predictable Graphical Password Choices

GE Raptis, C Katsini, AJ Cen, NA Gamagedara Arachchilage, LE Nacke

In Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems (CHI '21). Article 112. Pages 112:1-112:18. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3411764.3445658

Presented in 2021 CHI Conference on Human Factors in Computing Systems (CHI 2021) / Online Virtual Conference (originally Yokohama, Japan) / May 8 - 13, 2021.

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The Role of Eye Gaze in Security and Privacy Applications: Survey and Future HCI Research Directions

C Katsini, Y Abdrabou, GE Raptis, M Khamis, F Alt

In Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems (CHI '20). Pages 1–21. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3313831.3376840

Presented in 2020 CHI Conference on Human Factors in Computing Systems (CHI 2020) / Honolulu, HI, USA / April 25 - 30, 2020.
CHI 2020 Honorable Mention

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Do Cognitive Styles Influence Collective Sensemaking in Distributed Multiplayer Games?

SA Alharthi, GE Raptis, C Katsini, I Dolgov, LE Nacke, ZO Toups

In Proceedings of the 2019 Collective Intelligence Conference (CI '19). Association for Computing Machinery (ACM), New York, NY, USA.

Presented in 2019 ACM Conference on Collective Intelligence (CI '19) / Carnegie Mellon University, Pittsburgh, USA / June 13-14, 2019.

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UltraSonic Watch: Seamless Two-Factor Authentication through Ultrasound

D Zarafeta, C Katsini, GE Raptis, N Avouris

In Extended Abstracts of the 2019 CHI Conference on Human Factors in Computing Systems (CHI EA '19). Pages 1–6. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3290607.3313093

Presented in Conference on Human Factors in Computing Systems (CHI '19) / Glasgow, Scotland UK / May 4-9, 2019.

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Using Video-Based Technology in Powerlifting Sport to Support Referees' Decision Making

N Michalopoulos, C Katsini, GE Raptis

In Extended Abstracts of the 2019 CHI Conference on Human Factors in Computing Systems (CHI EA '19). Pages 1–6. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3290607.3312991

Presented in Conference on Human Factors in Computing Systems (CHI '19) / Glasgow, Scotland UK / May 4-9, 2019.

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Studying Human-Computer Interaction for Social Good: The Case of Digital Government Evaluation and Re-Design Project

N Avouris, C Sintoris, C Katsini

In Proceedings of the 22nd Pan-Hellenic Conference on Informatics (PCI '18). Pages 230-235. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3291533.3291541

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Toward Understanding the Effects of Cognitive Styles on Collaboration in Multiplayer Games

SA Alharthi, GE Raptis, C Katsini, I Dolgov, LE Nacke, ZO Toups

In Companion of the 2018 ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW '18). Pages 169-172. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3272973.3274047

Presented in 2018 ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW '18) / Jersey City, NJ, USA / November 3-7, 2018.

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CHISTA: Cultural Heritage Information Storage and reTrieval Application

GE Raptis, C Katsini, T Chrysikos

In Digital Heritage. Progress in Cultural Heritage: Documentation, Preservation, and Protection. Pages 163-170. Springer International Publishing, Cham, Germany. DOI: 10.1007/978-3-030-01765-1_19

Presented in 7th International Conference on Digital Heritage (EuroMed 2018) / Nicosia, Cyprus / October 29 - November 3, 2018.

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Towards Gaze-Based Quantification of the Security of Graphical Authentication Schemes

C Katsini, GE Raptis, C Fidas, N Avouris

In Proceedings of the 2018 ACM Symposium on Eye Tracking Research & Applications (ETRA '18). Article 17. Pages 17:1-17:5. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3204493.3204589

Presented in 2018 ACM Symposium on Eye Tracking Research & Applications / Warsaw, Poland / June 14 - 17, 2018.

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Visualization of Cultural-Heritage Content based on Individual Cognitive Differences

GE Raptis, C Katsini, CA Fidas, NM Avouris

In Proceedings of the AVI-CH 2018 Workshop on Advanced Visual Interfaces for Cultural Heritage (AVI-CH 2018), Volume: 2091. Pages 74-81. CEUR Workshop Proceedings, Aachen, Germany.

Presented in AVI-CH 2018 Workshop on Advanced Visual Interfaces for Cultural Heritage / Castiglione della Pescaia, Grosseto, Italy / May 29 - Jun 1, 2018.

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Does Image Grid Visualization Affect Password Strength and Creation Time in Graphical Authentication?

C Katsini, GE Raptis, C Fidas, N Avouris

In Proceedings of the 2018 International Conference on Advanced Visual Interfaces (AVI '18). Article 33. Pages 33:1-33:5. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3206505.3206546

Presented in 2018 International Conference on Advanced Visual Interfaces / Castiglione della Pescaia, Grosseto, Italy / May 29 - Jun 1, 2018.

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Influences of Human Cognition and Visual Behavior on Password Strength during Picture Password Composition

C Katsini, C Fidas, GE Raptis, M Belk, G Samaras, N Avouris

In Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems (CHI '18). Pages 1-14. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3173574.3173661

Presented in 2018 CHI Conference on Human Factors in Computing Systems (CHI 2018) / Montreal QC, Canada / April 21 - 26, 2018.

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Towards a Cognition-Centered Personalization Framework for Cultural-Heritage Content

GE Raptis, CA Fidas, C Katsini, NM Avouris

In Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems (CHI EA '18). Pages 1-6. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3170427.3190613

Presented in 2018 CHI Conference on Human Factors in Computing Systems (CHI 2018) / Montreal QC, Canada / April 21 - 26, 2018.

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Eye Gaze-Driven Prediction of Cognitive Differences during Graphical Password Composition

C Katsini, C Fidas, GE Raptis, M Belk, G Samaras, N Avouris

In Proceedings of 23rd International Conference on Intelligent User Interfaces (IUI '18). Pages 147-152. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3172944.3172996

Presented in 23rd International Conference on Intelligent User Interfaces / Tokyo, Japan / March 07 - 11, 2018 .

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Design, Development, and Evaluation of a Natural Controller used for Interaction with Cultural Artefacts in a Virtual-Reality Environment

P Gkikopoulos, GE Raptis, C Katsini, C Fidas, N Avouris

In Proceedings of the 2nd Pan-Hellenic Conference on Digital Cultural Heritage (Euromed 2017). Pages 545-553. Perrevia Net, Volos, Greece.

Presented in 2nd Pan-Hellenic Conference on Digital Cultural Heritage (EuroMed 2017) / Volos, Greece / December 1-3, 2017.

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Monitoring, Tracking, and Recording Pancreas-Related Health Issues in Real Time

T Chrysikos, I Zisi, C Katsini, GE Raptis, S Kotsopoulos

Journal of Physics: Conference Series, Volume: 931. Pages 012016:1-012016:5. IOP Publishing, Bristol, UK. DOI: 10.1088/1742-6596/931/1/012016

Presented in International Conference on Bio-Medical Instrumentation and related Engineering and Physical Sciences (BIOMEP '17) / Athens, Greece / October 12-13, 2017.

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Effects of Human Cognitive Differences on Interaction and Visual Behavior in Graphical User Authentication

M Belk, C Fidas, C Katsini, N Avouris, G Samaras

In Human-Computer Interaction - INTERACT 2017. Pages 287-296. Springer International Publishing, Cham, Germany. DOI: 10.1007/978-3-319-67687-6_19

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Effects of Image-Based Rendering and Reconstruction on Game Developers Efficiency, Game Performance, and Gaming Experience

GE Raptis, C Katsini, C Fidas, N Avouris

In Human-Computer Interaction - INTERACT 2017. Pages 87-96. Springer International Publishing, Cham, Germany. DOI: 10.1007/978-3-319-67684-5_6

Presented in IFIP Conference on Human-Computer Interaction (INTERACT 2017) / Mumbai, India / September 25-29, 2017.

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Using Eye Gaze Data and Visual Activities to Infer Human Cognitive Styles: Method and Feasibility Studies

GE Raptis, C Katsini, M Belk, C Fidas, G Samaras, N Avouris

In Proceedings of the 25th Conference on User Modeling, Adaptation and Personalization (UMAP '17). Pages 164-173. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3079628.3079690

Presented in 25th Conference on User Modeling, Adaptation and Personalization (UMAP '17) / Bratislava, Slovakia / July 9-12, 2017.

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Influences of Users' Cognitive Strategies on Graphical Password Composition

C Katsini, C Fidas, M Belk, N Avouris, G Samaras

In Proceedings of the 2017 CHI Conference Extended Abstracts on Human Factors in Computing Systems (CHI EA '17). Pages 2698-2705. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3027063.3053217

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Sweet-Spotting Security and Usability for Intelligent Graphical Authentication Mechanisms

M Belk, A Pamboris, C Fidas, C Katsini, N Avouris, G Samaras

In Proceedings of the International Conference on Web Intelligence (WI '17). Pages 252-259. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3106426.3106488

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WHEAMO: A Wireless Health Platform for Monitoring Pancreas-Related Diseases

T Chrysikos, I Zisi, C Katsini, GE Raptis, S Kotsopoulos

In Proceedings of the 7th Pan-Hellenic Conference on Biomedical Technology (ELEVIT 2017). Article 11. Pages 45. ELEVIT (Hellenic Biomedical Engineering Society), Athens, Greece.

Presented in 7th Pan-Hellenic Conference on Biomedical Technology (ELEVIT 2017) / Athens, Greece / April 7, 2017.

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Security and Usability in Knowledge-Based User Authentication: A Review

C Katsini, M Belk, C Fidas, N Avouris, G Samaras

In Proceedings of the 20th Pan-Hellenic Conference on Informatics (PCI '16). Article 63. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3003733.3003764

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A Personalised Monitoring and Recommendation Framework for Kinetic Dysfunctions: The Trendelenburg Gait

N Michalopoulos, GE Raptis, C Katsini, T Chrysikos, M Mamalakis, A Vigotsky

In Proceedings of the 20th Pan-Hellenic Conference on Informatics (PCI '16). Article 8. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3003733.3003786

Presented in 20th Pan-Hellenic Conference on Informatics (PCI '16) / Patras, Greece / November 10-12, 2016.

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Usability Engineering Practices in Software Development Organizations: The Greek and the Italian Case Study

C Katsini, N Avouris, R Lanzilotti

In Proceedings of the International Working Conference on Advanced Visual Interfaces (AVI '16). Pages 322-323. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/2909132.2926085

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Design of a Mobile Computing System to Obtain Information From Cultural Heritage Sites

GE Raptis, C Katsini, T Chrysikos

In Proceedings of the 1st Pan-Hellenic Conference on Digital Cultural Heritage (Euromed 2015). Pages 371-378. Perrevia Net / Palmos Print, Volos, Greece.

Presented in 1st Pan-Hellenic Conference on Digital Cultural Heritage (EuroMed 2015) / Volos, Greece / September 24-26, 2015.

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VirDO: A Virtual Workspace for Research Documents

GE Raptis, C Katsini, SJ Payne

In Research and Advanced Technology for Digital Libraries. Pages 470-473. Springer, Berlin, Heidelberg. DOI: 10.1007/978-3-642-40501-3_63

Presented in International Conference on Theory and Practice of Digital Libraries (TPDL 2013) / Valetta, Malta / September 22-26, 2013.

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Synergo v.5: A Collaborative Application for Tablets

C Katsini, GE Raptis, IA Chounta

In Proceedings of the 4th Conference of Electrical and Computer Engineering Students (ECESCON '10). Pages 316-317. ECESCON, Patras, Greece.

Presented in 4th Conference of Electrical and Computer Engineering Students (ECESCON '10) / Patras, Greece / November 19-20, 2010.

Journal Articles

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CAVeCTIR: Matching Cyber Threat Intelligence Reports on Connected and Autonomous Vehicles Using Machine Learning

GE Raptis, C Katsini, C Alexakos, A Kalogeras, D Serpanos

Applied Sciences, Volume: 12, Issue: 22. Article 11631. Pages 11631:1-11631:20. MDPI AG. DOI: 10.3390/app122211631

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Digital Forensic Readiness in Internet of Vehicles: The Denial-of-Service on CAN bus Case Study

C Katsini, GE Raptis, K Livitckaia, K Votis, C Alexakos

Annals of Forensic Science and Research, Volume: -, Issue: -. MedDocs Publishers, Reno, Nevada, USA. DOI: -

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Investigating the Effects of Individual Cognitive Styles on Collaborative Gameplay

SA Alharthi, GE Raptis, C Katsini, I Dolgov, LE Nacke, ZO Toups

ACM Transactions on Computer-Human Interaction (TOCHI), Volume: 28, Issue: 4. Association for Computing Machinery (ACM), New York, NY, USA. DOI: 10.1145/3445792

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MuMIA: Multimodal Interactions to Better Understand Art Contexts

GE Raptis, G Kavvetsos, C Katsini

Applied Sciences, Volume: 11, Issue: 6. Article 2695. Pages 2695:1-2695:22. MDPI AG. DOI: 10.3390/app11062695

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Enabling Digital Forensics Readiness for Internet of Vehicles

C Alexakos, C Katsini, K Votis, A Lalas, D Tzovaras, D Serpanos

Transportation Research Procedia, Volume: 52. Pages 339-346. DOI: 10.1016/j.trpro.2021.01.040

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CogniPGA: Longitudinal Evaluation of Picture Gesture Authentication with Cognition-Based Intervention

C Katsini, N Avouris, C Fidas

i-com, Volume: 18, Issue: 3. Pages 237-257. DOI: 10.1515/icom-2019-0011

Part of the Special Issue "Emerging Trends in Usable Security and Privacy"

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A Human-Cognitive Perspective of Users' Password Choices in Recognition-Based Graphical Authentication

C Katsini, C Fidas, M Belk, G Samaras, N Avouris

International Journal of Human–Computer Interaction, Volume: 35, Issue: 19. Pages 1800-1812. Taylor & Francis. DOI: 10.1080/10447318.2019.1574057

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A Cognition-Centered Personalization Framework for Cultural-Heritage Content

GE Raptis, C Fidas, C Katsini, N Avouris

User Modeling and User-Adapted Interaction (UMUAI), Volume: 29, Issue: 1. Pages 9-65. Springer Science and Business Media LLC. DOI: 10.1007/s11257-019-09226-7

UMUAI 2019 James Chen Award for best paper

Contact me

To contact me, drop me an e-mail at me@ckatsini.com.