Efficient Video Indexing on the Web: A System That Crowdsources User Interactions with a Video Player. - Ioannis Leftheriotis; Chrysoula Gkonela; Konstantinos Chorianopoulos (UCMedia, 2010)

Multi-user chorded toolkit for multi-touch screens. - Ioannis Leftheriotis; Konstantinos Chorianopoulos (EICS, 2011)

User experience quality in multi-touch tasks. - Ioannis Leftheriotis; Konstantinos Chorianopoulos (EICS, 2011)

SocialSkip: pragmatic understanding within web video. - Konstantinos Chorianopoulos; Ioannis Leftheriotis; Chrysoula Gkonela (EuroITV, 2011)

Scalable interaction design for collaborative visual exploration of big data. - Ioannis Leftheriotis (ITS, 2012)

Tool support for developing scalable multiuser applications on multi-touch screens. - Ioannis Leftheriotis; Konstantinos Chorianopoulos; Letizia Jaccheri (ITS, 2012)

Efficient Video Indexing on the Web: A System that Leverages User Interactions with a Video Player - Ioannis Leftheriotis; Chrysoula Gkonela; Konstantinos Chorianopoulos (CoRR, 2012)

User authentication in a multi-touch surface: a chord password system. - Ioannis Leftheriotis (CHI Extended Abstracts, 2013)

Happy Girls Engaging with Technology: Assessing Emotions and Engagement Related to Programming Activities. - Michail N. Giannakos; Letizia Jaccheri; Ioannis Leftheriotis (HCI (14), 2014)

Using social media for work: Losing your time or improving your work? - Ioannis Leftheriotis; Michail N. Giannakos (Comput. Hum. Behav., 2014)

How Space and Tool Availability Affect User Experience and Creativity in Interactive Surfaces? - Michail N. Giannakos; Ioannis Leftheriotis (Creativity & Cognition, 2015)

Investigating the Potential of a Two-finger Chord Button in Multi-touch Applications. - Ioannis Leftheriotis; Michail N. Giannakos; Konstantinos Chorianopoulos; Letizia Jaccheri (ITS, 2015)

Interaction Space of Chords on a Vertical Multi-touch Screen. - Ioannis Leftheriotis; Michail N. Giannakos; Konstantinos Chorianopoulos; Letizia Jaccheri (ITS, 2015)

Social Media Use For Work: Does Work Experience Really Matter? - Ioannis Leftheriotis; Michail N. Giannakos; Ilias O. Pappas (MCIS, 2016)

Design and implement chords and personal windows for multi-user collaboration on a large multi-touch vertical display. - Ioannis Leftheriotis; Konstantinos Chorianopoulos; Letizia Jaccheri (Hum. centric Comput. Inf. Sci., 2016)

Dual Gaze as a Proxy for Collaboration in Informal Learning. - Kshitij Sharma; Ioannis Leftheriotis; Jama Noor; Michail N. Giannakos (CSCL, 2017)

Gamifying informal learning activities using interactive displays: an empirical investigation of students' learning and engagement. - Ioannis Leftheriotis; Michail N. Giannakos; Letizia Jaccheri (Smart Learn. Environ., 2017)

Utilizing Interactive Surfaces to Enhance Learning, Collaboration and Engagement: Insights from Learners' Gaze and Speech. - Kshitij Sharma; Ioannis Leftheriotis; Michail N. Giannakos (Sensors, 2020)