Sandi Ljubic

Professor
Department of Computer Engineering
Faculty of Engineering
University of Rijeka

Contact:
Vukovarska 58, HR-51000 Rijeka, Croatia
sandi.ljubic at riteh dot uniri dot hr

UNIRI portfolio | CROSBI | Linkedin | ResearchGate | Google Scholar | ORCiD | WoS | Scopus

Publications
& Editorial boards / Committees

[journal papers, conference papers, book chapters], [other], [boards / committees]

Peer Reviewed Papers

• A. Skoki, S. Ivic, S. Ljubic, J. Lerga, I. Štajduhar:
  Enhancing Biophysical Muscle Fatigue Model in the Dynamic Context of Soccer.
  Sensors 2024, 24(24), 8128, pp. 1-13.
  
  • abstract | doi
• A. Salkanovic, D. Bačnar, D. Sušanj, S. Ljubic:
  A Sensor-Fusion-Based Experimental Apparatus for Collecting Touchscreen Handwriting Biometric Features.
  Applied Sciences 2024, 14(23), 11234, pp. 1-30.
  
  • abstract | doi
• A. Bonello, E. Francalanza, J.P. Zammit, A. Maffei, F. Enoksson, E. Boffa, F. Pirola, G. Pezzotta,
  R. Sala, P.C. Priarone, D. Antonelli, P. Minetola, S. Ljubic, A. Skoki, P. Podržaj, T. Žužek:
  Development of an Agile Blended Learning Framework for Engineering Higher Educational Instutions post Covid-19.
  In: Proc. 33rd International Electrotechnical and Computer Science Conference (ERK 2024)
  IEEE Slovenia (2024), pp. 644-647.
  
  • abstract | web
• S. Ljubic, A. Skoki, F. Hržic, A. Salkanovic:
  Automated Online Assessment and Cloud-Based Programming: Advancing Computer Engineering Education.
  In: Proc. 5th International Conference on Higher Education Learning Methodologies and Technologies Online (HELMeTO 2023)
  Communications in Computer and Information Science 2076 (2024), pp. 78-94.
  
  • abstract | doi | CoP | photos
• A. Skoki, P. Anic, S. Ljubic, A. Naglic, J. Lerga, I. Štajduhar:
  Exploring the Impact of the Perceived Cognitive Load on the Physical Performance in Soccer.
  Elektrotehniški Vestnik, 91(3), 2024, pp.108–116.
  
  • abstract | web
• R. Sala, A. Maffei, F. Pirola, F. Enoksson, S. Ljubic, A. Skoki, J.P. Zammit, A. Bonello,
  P. Podrzaj, T. Žužek, P.C. Priarone, D. Antonelli, G. Pezzotta:
  Blended learning in the engineering field: A systematic literature review.
  Computer Applications in Engineering Education, 2024, e22712.
  
  • abstract | doi
• D. Palaic, I. Štajduhar, S. Ljubic, I. Matetic, I. Wolf:
  Development of a Building Simulation Model for Indoor Temperature Prediction and HVAC System Anomaly Detection.
  Journal of Energy Systems, 7(4), 2023, pp. 339-349.
  
  • abstract | doi
• HELMeTO 2023 Abstracts
  
  • S. Ljubic, A. Skoki, F. Hržic, A. Salkanovic:
    Empowering Computer Engineering Education: Leveraging Cloud-Based Programming Platforms and Online Assessment Tools.
    
    
  • R. Sala, F. Pirola, G. Pezzotta, F. Enoksson, S. Ljubic, A. Skoki, E. Francalanza, J.P. Zammit,
    A. Bonello, P. Podržaj, P.C. Priarone, D. Antonelli, P. Minetola, A. Maffei, E. Boffa:
    Examining the implementation of Blended Learning in the Engineering field.
    
    
  • A. Bonello, E. Francalanza, J.P. Zammit, F. Pirola, G. Pezzotta, R. Sala,
    A. Skoki, S. Ljubic, P. Podržaj, D. Antonelli, P. Minetola, F. Enoksson, A. Maffei:
    Beyond the pandemic: How has Covid-19 shaped the capability to adopt an Agile Blended Learning in HEI?
  In: 5th International Conference on Higher Education Learning Methodologies and Technologies Online
  HELMeTO 2023 Book of Abstracts
  pp. 43-45, pp. 83-84, pp. 29-30
  
  • BoA | photos
• I. Matetic, I. Štajduhar, I. Wolf, D. Palaic, S. Ljubic:
  Random Forests Model for HVAC System Fault Detection in Hotel Buildings.
  In: Proc. 17th Int'l Work-Conference on Artificial Neural Networks (IWANN 2023)
  Lecture Notes in Computer Science 14134 (2023), pp. 654-665.
  
  • abstract | doi | CoP | photos
• D. Palaic, I. Matetic, S. Ljubic, I. Štajduhar, I. Wolf:
  Data-driven Model for Indoor Temperature Prediction in HVAC-Supported Buildings.
  In: Proc. 3rd Int'l Conf. Electrical, Computer, Communications and Mechatronics Engineering (ICECCME 2023)
  IEEE, 2023, pp. 1-6.
  
  • abstract | doi | CoP | photos
• V. Ecimovic, L. Skitarelic, A. Salkanovic, S. Ljubic:
  A Comparison of Finger, Stylus and Mouse in Trajectory Tracing Task Execution on Touchscreen Mobile Devices.
  In: HCII'23 / Human-Computer Interaction
  Lecture Notes in Computer Science 14011 (2023), pp. 433-449.
  
  • abstract | doi | CoP | photos
• I. Matetic, I. Štajduhar, I. Wolf, S. Ljubic:
  Improving the Efficiency of Fan Coil Units in Hotel Buildings through Deep-Learning-Based Fault Detection.
  Sensors 2023, 23(15), 6717, pp. 1-16.
  
  • abstract | doi
• S. Ljubic, A. Salkanovic:
  Generating Representative Phrase Sets for Text Entry Experiments by GA-Based Text Corpora Sampling.
  Mathematics 2023, 11(11), 2550, pp. 1-26.
  
  • abstract | doi
• D. Palaic, I. Štajduhar, S. Ljubic, I. Wolf:
  Development, Calibration, and Validation of a Simulation Model for Indoor Temperature Prediction and HVAC System Fault Detection.
  Buildings 2023, 13(6), 1388, pp. 1-21.
  
  • abstract | doi
• L. Batistic, D. Sušanj, D. Pincic, S. Ljubic:
  Motor Imagery Classification Based on EEG Sensing with Visual and Vibrotactile Guidance.
  Sensors 2023, 23(11), 5064, pp. 1-21.
  
  • abstract | doi
• I. Matetic, I. Štajduhar, I. Wolf, S. Ljubic:
  A Review of Data-Driven Approaches and Techniques for Fault Detection and Diagnosis in HVAC Systems.
  Sensors 2023, 23(1), 1, pp. 1-37.
  
  • abstract | doi
• I. Matetic, I. Štajduhar, I. Wolf, D. Palaic, S. Ljubic:
  Data Visualization Tool for Smart Buildings HVAC Systems.
  In: Proc. International Conference on Innovations in Computing Research (ICR'22)
  Advances in Intelligent Systems and Computing 1431 (2022), pp. 444-453.
  
  • abstract | doi | CoP | photos
• A. Salkanovic, S. Ljubic:
  LuxBoard: Ambient Light Manipulation for Contactless Text Entry on Mobile Devices.
  In: HCII'22 / Human-Computer Interaction. Technological Innovation.
  Lecture Notes in Computer Science 13303 (2022), pp. 126-139.
  
  • abstract | doi
• A. Salkanovic, S. Ljubic, LJ. Stankovic, J. Lerga:
  Analysis of Cryptography Algorithms Implemented in Android Mobile Application.
  Information Technology and Control 50(4), 2021, pp. 786-807.
  
  • abstract | doi
• P. Podržaj, M. Finžgar, Ž. Pirnar, S. Ljubic, M. Lanzetta, L. Pollini, P. Venturini, B. Pizag, A. Urbin, P. Korondi, J. Graff, C. Budai:
  An Erasmus+ project: Interactive Course for Control Theory (ICCT).
  In: Proc. 47th Annual Conference of the IEEE Industrial Electronics Society (IECON'21). Toronto, ON, Canada, 2021, pp. 1-6.
  
  • abstract | doi
• A. Salkanovic, S. Ljubic:
  Touchless Interaction on Mobile Devices Using Embedded Ambient Light Sensor.
  In: HCII'21 / Distributed, Ambient and Pervasive Interactions (DAPI).
  Lecture Notes in Computer Science 12782 (2021), pp. 153-163.
  
  • abstract | doi
• S. Ljubic, F. Hržic, A. Salkanovic, I. Štajduhar:
  Augmenting Around-Device Interaction by Geomagnetic Field Built-in Sensor Utilization.
  Sensors 2021, 21(9), 3087, pp. 1-24.
  
  • abstract | doi
• A. Salkanovic, M. Stojkovic, S. Ljubic:
  The Effect of Dwell Time on Swipe-based Pie-Menu Navigation Efficiency.
  International Journal of Online and Biomedical Engineering (iJOE), 16:15 (2020), pp. 4-22.
  
  • abstract | doi
• D. Arbula, S. Ljubic:
  Indoor Localization Based on Infrared Angle of Arrival Sensor Network.
  Sensors 2020, 20(21), 6278, pp. 1-32.
  
  • abstract | doi
• A. Salkanovic, I. Štajduhar, S. Ljubic:
  Floating Hierarchical Menus for Swipe-Based Navigation on Touchscreen Mobile Devices.
  In: HCII'20 / Human-Computer Interaction. Multimodal and Natural Interaction.
  Lecture Notes in Computer Science 12182 (2020), pp. 509-522.
  
  • abstract | doi
• A. Skoki, S. Ljubic, J. Lerga, I. Štajduhar:
  Sopele music dataset.
  Data in brief, 28 (2020), 104840, pp. 1-5.
  
  • abstract | doi
• A. Skoki, S. Ljubic, J. Lerga, I. Štajduhar:
  Automatic Music Transcription for Traditional Woodwind Instruments Sopele.
  Pattern Recognition Letters, 128 (2019), pp. 340-347.
  
  • abstract | doi
• S. Ljubic, D. Arbula:
  Contact-free Interaction with Mobile Devices using Magnetic, Lighting and Infrared Sources.
  International Journal of Interactive Mobile Technologies (iJIM), 11:4 (2017), pp. 66-82.
  
  • abstract | doi | PDF
• S. Ljubic, D. Arbula, K. Smrekar:
  An Adaptable Scan-Based Text Entry for Mobile Devices: Design, Predictive Modeling, and Empirical Evaluation.
  Engineering Review, 37:1 (2017), pp. 38-49.
  
  • abstract | online | PDF
• S. Ljubic:
  Three Text Entry Methods Based on Smartphone Discrete Tilting: An Empirical Evaluation.
  In: HCII/UAHCI'16. Lecture Notes in Computer Science 9738 (2016), pp. 141-152.
  
  • abstract | doi
• S. Ljubic, V. Glavinic, M. Kukec:
  Finger-Based Pointing Performance on Mobile Touchscreen Devices: Fitts' Law Fits.
  In: HCII/UAHCI'15. Lecture Notes in Computer Science 9175 (2015), pp. 318-329.
  
  • abstract | doi
• L. Krapic, K. Lenac, S. Ljubic:
  Integrating Blink Click interaction into a head tracking system: implementation and usability issues.
  Universal Access in the Information Society, 14:2 (2015), pp. 247-264.
  
  • abstract | doi | PDF title page
• A. Vega, S. Ljubic:
  Smartwatch as a Remote Server Monitoring Device: Implementation and Interaction Design.
  In: Proc. 38th Int'l Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO'15). MIPRO, Rijeka, Croatia, 2015, pp. 647-652.
  
  • abstract | doi
• S. Ljubic, V. Glavinic, M. Kukec:
  Predicting upper-bound text entry speeds for discrete-tilt-based input on smartphones.
  Journal of Interaction Science, 2:3 (2014)
  doi: 10.1186/s40166-014-0003-6
  
  • abstract | doi | PDF
• S. Ljubic, V. Glavinic, M. Kukec:
  Effects of Interaction Style and Screen Size on Touchscreen Text Entry Performance: An Empirical Research.
  In: HCII/UAHCI'14. Lecture Notes in Computer Science 8514 (2014), pp. 68-79.
  
  • abstract | doi | CoP | photos
• M. Kukec, V. Glavinic, S. Ljubic:
  Measuring the Effect of First Encounter with Source Code Entry for Instruction Set Architectures Using Touchscreen Devices: Evaluation of Usability Components.
  In: HCII/UAHCI'14. Lecture Notes in Computer Science 8514 (2014), pp. 358-369.
  
  • abstract | doi | CoP | photos
• S. Ljubic, M. Kukec, V. Glavinic:
  Tilt-Based Support for Multimodal Text Entry on Touchscreen Smartphones: Using Pitch and Roll.
  In: HCII/UAHCI'13. Lecture Notes in Computer Science 8011 (2013), pp. 651-660.
  
  • abstract | doi | CoP | photos
• M. Kukec, S. Ljubic, V. Glavinic:
  Improving Students' Technical Skills Using Mobile Virtual Laboratory: Pilot Study of Assembly Language Input Methods for Touchscreen Devices.
  In: SouthCHI'13. Lecture Notes in Computer Science 7946 (2013), pp. 514-533.
  
  • abstract | doi
• M. Kukec, S. Ljubic, V. Glavinic:
  Need for Usability and Wish for Mobility: Case Study of Client End Applications for Primary Healthcare Providers in Croatia.
  In: USAB'11. Lecture Notes in Computer Science 7058 (2011), pp. 171-190.
  
  • abstract | doi | PDF
• V. Glavinic, S. Ljubic, M. Kukec:
  Supporting Universal Usability of Mobile Software: Touchscreen Usability Meta-Test.
  In: HCII/UAHCI'11. Lecture Notes in Computer Science 6767 (2011), pp. 26-35.
  
  • abstract | doi | PDF | CoP | photos
• V. Glavinic, S. Ljubic, M. Kukec:
  Model of a Touchscreen Interaction Benchmark Test Supporting Usability Awareness in Mobile Application Development Process.
  In: USAB'10. Lecture Notes in Computer Science 6389 (2010), pp. 505-508.
  
  • abstract | doi
• V. Glavinic, S. Ljubic, M. Kukec:
  On Efficiency of Adaptation Algorithms for Mobile Interfaces Navigation.
  In: HCII/UAHCI'09. Lecture Notes in Computer Science 5615 (2009), pp. 307-316.
  
  • abstract | doi | PDF | CoP | photos
• V. Glavinic, M. Kukec, S. Ljubic:
  Digital Design Mobile Virtual Laboratory Implementation: A Pragmatic Approach.
  In: HCII/UAHCI'09. Lecture Notes in Computer Science 5614 (2009), pp. 489-498.
  
  • abstract | doi | PDF | CoP | photos
• V. Glavinic, S. Ljubic, M. Kukec:
  Transformable Menu Component for Mobile Device Applications: Working with both Adaptive and Adaptable User Interfaces.
  International Journal of Interactive Mobile Technologies (iJIM), 2:3 (2008), pp. 22-27.
  
  • abstract | doi | CoP | photos
• V. Glavinic, S. Ljubic, M. Kukec:
  A Holistic Approach to Enhance Universal Usability in m-Learning.
  In: Proc. 2nd Int'l Conf. Mobile Ubiquitous Computing, Systems, Services and Technologies (UBICOMM'08). IEEE Computer Society, 2008, pp. 305-310.
  
  • abstract | doi | CoP | photos
• V. Glavinic, M. Kukec, S. Ljubic:
  Mobile Virtual Laboratory: Learning Digital Design.
  In: Proc. 29th Int'l Conf. Information Technology Interfaces (ITI'07). SRCE University Computing Center, University of Zagreb, 2007, pp. 325-332.
  
  • abstract | doi

Other

• S. Ljubic:
  Mobile Applications Usability (in Croatian)
  Qualificational doctoral exam
  
  • PDF

Editorial boards and Committees

• CIT. Journal of Computing and Information Technology
  Associate Editor (since 2018)
  
  • CIT Web
• The Journal of Interaction Science (JoIS)
  Editorial Board member (2012-2021)
  
  • JoIS Web (archive)
• ICR: International Conference on Innovations in Computing Research
  Organization Committee member (2024, 2025)
  
  • ICR 2025 Program Committee (CSE Education)
  • ICR 2024 Program Committee (CSE Education)
• ACR: International Conference on Adavances in Computing Research
  Program Committee member (2023, 2024, 2025)
  
  • ACR 2025 Organization Committee
  • ACR 2024 Organization Committee
  • ACR 2023 Organization Committee
• FedCSIS: Conference on Computer Science and Intelligence Systems
  AI4Empowerment: Workshop on Artificial Intelligence for Patient Empowerment with Sensor Systems
  International Symposium on Advanced Artificial Intelligence in Applications (AAIA)
  Program Committee member (2022, 2023, 2024)
  
  • AAIA 2024 Committee
  • AAIA 2023 Committee
  • AAIA 2022 Committee
  • AI4Empowerment 2022 Committee
• CIEES: International Scientific Conference of Communications, Information, Electronic and Energy Systems
  International Scientific Committee member (2021, 2020)
  
  • CIEES 2021 Scientific Committee
  • CIEES 2020 Scientific Committee
• SouthCHI: International Conference on Human Factors in Computing & Informatics
  Programme Committee member (2013)
  
  • SouthCHI 2013 Organization