Stop questioning me!: towards optimizing user involvement during data collection on mobile devices. - Nicholas Micallef; Mike Just; Lynne Baillie; Hilmi Günes Kayacik (Mobile HCI, 2013)

Non-intrusive and Transparent Authentication on Smart Phones - (Extended Abstract). - Nicholas Micallef; Mike Just; Lynne Baillie; Hilmi Günes Kayacik (TRUST, 2013)

Data Driven Authentication: On the Effectiveness of User Behaviour Modelling with Mobile Device Sensors. - Hilmi Günes Kayacik; Mike Just; Lynne Baillie; David Aspinall 001; Nicholas Micallef (CoRR, 2014)

Why aren't Users Using Protection? Investigating the Usability of Smartphone Locking. - Nicholas Micallef; Mike Just; Lynne Baillie; Martin Halvey; Hilmi Günes Kayacik (MobileHCI, 2015)

Sensor use and usefulness: Trade-offs for data-driven authentication on mobile devices. - Nicholas Micallef; Hilmi Günes Kayacik; Mike Just; Lynne Baillie; David Aspinall 001 (PerCom, 2015)

Evaluating the usability of ambient profiles for context-sensitive authentication on smartphones. - Nicholas Micallef (2015)

Time to exercise!: an aide-memoire stroke app for post-stroke arm rehabilitation. - Nicholas Micallef; Lynne Baillie; Stephen Uzor (MobileHCI, 2016)

A Serious Game Design: Nudging Users' Memorability of Security Questions. - Nicholas Micallef; Nalin Asanka Gamagedara Arachchilage (ACIS, 2017)

A Model for Enhancing Human Behaviour with Security Questions: A Theoretical Perspective. - Nicholas Micallef; Nalin Asanka Gamagedara Arachchilage (ACIS, 2017)

Involving Users in the Design of a Serious Game for Security Questions Education. - Nicholas Micallef; Nalin Asanka Gamagedara Arachchilage (HAISA, 2017)

Changing users' security behaviour towards security questions: A game based learning approach. - Nicholas Micallef; Nalin Asanka Gamagedara Arachchilage (MilCIS, 2017)

Stop annoying me!: an empirical investigation of the usability of app privacy notifications. - Nicholas Micallef; Mike Just; Lynne Baillie; Maher Alharby (OZCHI, 2017)

A Gamified Approach to Improve Users' Memorability of Fall-back Authentication. - Nicholas Micallef; Nalin Asanka Gamagedara Arachchilage (SOUPS, 2017)

Investigating Login Features in Smartphone Apps. - Nicholas Micallef; Erwin Adi; Gaurav Misra (UbiComp/ISWC Adjunct, 2018)

Towards designing a mobile app that creates avatars for privacy protection. - Nicholas Micallef; Gaurav Misra (MobileHCI Adjunct, 2018)

Security questions education: exploring gamified features and functionalities. - Nicholas Micallef; Nalin Asanka Gamagedara Arachchilage (Inf. Comput. Secur., 2018)

That's Not Me! Designing Fictitious Profiles to Answer Security Questions. - Nicholas Micallef; Nalin Asanka Gamagedara Arachchilage (CoRR, 2019)

The Role of the Crowd in Countering Misinformation: A Case Study of the COVID-19 Infodemic. - Nicholas Micallef; Bing He 002; Srijan Kumar; Mustaque Ahamad; Nasir D. Memon (IEEE BigData, 2020)

Exposure to Social Engagement Metrics Increases Vulnerability to Misinformation. - Mihai Avram 002; Nicholas Micallef; Sameer Patil; Filippo Menczer (CoRR, 2020)

Fakey: A Game Intervention to Improve News Literacy on Social Media. - Nicholas Micallef; Mihai Avram 002; Filippo Menczer; Sameer Patil (Proc. ACM Hum. Comput. Interact., 2021)

Understanding users' perceptions to improve fallback authentication. - Nicholas Micallef; Nalin Asanka Gamagedara Arachchilage (Pers. Ubiquitous Comput., 2021)

Cross-Platform Multimodal Misinformation: Taxonomy, Characteristics and Detection for Textual Posts and Videos. - Nicholas Micallef; Marcelo Sandoval-Castañeda; Adi Cohen; Mustaque Ahamad; Srijan Kumar; Nasir D. Memon (ICWSM, 2022)

True or False: Studying the Work Practices of Professional Fact-Checkers. - Nicholas Micallef; Vivienne Armacost; Nasir D. Memon; Sameer Patil (Proc. ACM Hum. Comput. Interact., 2022)

Dissecting the Advocacy Discourse Behind the #StopAsianHate Movement on X/Twitter. - Yuze Sha; Nicholas Micallef; Yan Wu (ASONAM (3), 2024)

Towards Co-designing a Human-Agent Interface: A Case Study in Online Grooming Detection. - Peter Daish; Nicholas Micallef; Nuria Lorenzo-Dus; Adeline Paiement; Deepak Ranjan Sahoo (HAI, 2024)

Towards Co-Designing a Continuous-Learning Human-AI Interface: A Case Study in Online Grooming Detection Peter Daish. - Peter Daish; Nicholas Micallef; Nuria Lorenzo-Dus; Adeline Paiement; Deepak Ranjan Sahoo (SYNERGY@AVI, 2024)

From the Childhood Past: Views of Young Adults on Parental Sharing of Children's Photos. - Tania Ghafourian; Nicholas Micallef; Sameer Patil (USENIX Security Symposium, 2024)

Can LLMs assist with Ambiguity? A Quantitative Evaluation of various Large Language Models on Word Sense Disambiguation. - T. G. D. K. Sumanathilaka; Nicholas Micallef; Julian Hough (CoRR, 2024)

GlossGPT: GPT for Word Sense Disambiguation using Few-shot Chain-of-Thought Prompting. - Deshan K. Sumanathilaka; Nicholas Micallef; Julian Hough (ANT/EDI40, 2025)

IndoNLP 2025: Shared Task on Real-Time Reverse Transliteration for Romanized Indo-Aryan languages. - Deshan K. Sumanathilaka; Isuri Anuradha; Ruvan Weerasinghe; Nicholas Micallef; Julian Hough (CoRR, 2025)