2022

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Supervised Advantage Actor-Critic for Recommender Systems
Xin Xin | Alexandros Karatzoglou | Ioannis Arapakis | Joemon M. Jose
WSDM '22: The Fifteenth ACM International Conference on Web Search and Data Mining, Virtual Event / Tempe, AZ, USA, February 21 - 25, 2022

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Choosing the Best of Both Worlds: Diverse and Novel Recommendations through Multi-Objective Reinforcement Learning
Dusan Stamenkovic | Alexandros Karatzoglou | Ioannis Arapakis | Xin Xin | Kleomenis Katevas
WSDM '22: The Fifteenth ACM International Conference on Web Search and Data Mining, Virtual Event / Tempe, AZ, USA, February 21 - 25, 2022

2021

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When Choice Happens: A Systematic Examination of Mouse Movement Length for Decision Making in Web Search
Lukas Brückner | Ioannis Arapakis | Luis A. Leiva
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

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Impact of Response Latency on User Behaviour in Mobile Web Search
Ioannis Arapakis | Souneil Park | Martin Pielot
CHIIR '21: ACM SIGIR Conference on Human Information Interaction and Retrieval, Canberra, ACT, Australia, March 14-19, 2021

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My Mouse, My Rules: Privacy Issues of Behavioral User Profiling via Mouse Tracking
Luis A. Leiva | Ioannis Arapakis | Costas Iordanou
CHIIR '21: ACM SIGIR Conference on Human Information Interaction and Retrieval, Canberra, ACT, Australia, March 14-19, 2021

2020

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A Price-per-attention Auction Scheme Using Mouse Cursor Information
Ioannis Arapakis | Antonio Penta | Hideo Joho | Luis A. Leiva
2020 Volume 38 Issue 2

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Learning Efficient Representations of Mouse Movements to Predict User Attention
Ioannis Arapakis | Luis A. Leiva
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

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Self-Supervised Reinforcement Learning for Recommender Systems
Xin Xin | Alexandros Karatzoglou | Ioannis Arapakis | Joemon M. Jose
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020

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Query Abandonment Prediction with Recurrent Neural Models of Mouse Cursor Movements
Lukas Brückner | Ioannis Arapakis | Luis A. Leiva
CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

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CHIIR '20: Conference on Human Information Interaction and Retrieval, Vancouver, BC, Canada, March 14-18, 2020

CHIIR '20: Conference on Human Information Interaction and Retrieval, Vancouver, BC, Canada, March 14-18, 2020

2019

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A Simple Convolutional Generative Network for Next Item Recommendation
Fajie Yuan | Alexandros Karatzoglou | Ioannis Arapakis | Joemon M. Jose | Xiangnan He
Proceedings of the Twelfth ACM International Conference on Web Search and Data Mining, WSDM 2019, Melbourne, VIC, Australia, February 11-15, 2019

2017

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Understanding and Leveraging the Impact of Response Latency on User Behaviour in Web Search
Xiao Bai | Ioannis Arapakis | Berkant Barla Cambazoglu | Ana Freire
2017 Volume 36 Issue 2

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On the feasibility of predicting popular news at cold start
Ioannis Arapakis | Berkant Barla Cambazoglu | Mounia Lalmas
2017 Volume 68 Issue 5

2016

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Predicting User Engagement with Direct Displays Using Mouse Cursor Information
Ioannis Arapakis | Luis A. Leiva
Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016

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The Role of Relevance in Sponsored Search
Luca Maria Aiello | Ioannis Arapakis | Ricardo Baeza-Yates | Xiao Bai | Nicola Barbieri | Amin Mantrach | Fabrizio Silvestri
Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016

2015

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Explanatory opinions: to whom or what is all the fuzz about?
Filipa Peleja | Ioannis Arapakis | João Magalhães
Sixth BCS-IRSG Symposium on Future Directions in Information Access, FDIA 2015, 31 August - 4 September 2015, Thessaloniki, Greece

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Unconscious Physiological Effects of Search Latency on Users and Their Click Behaviour
Miguel Barreda-Ángeles | Ioannis Arapakis | Xiao Bai | Berkant Barla Cambazoglu | Alexandre Pereda-Baños
Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, Santiago, Chile, August 9-13, 2015

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Know Your Onions: Understanding the User Experience with the Knowledge Module in Web Search
Ioannis Arapakis | Luis A. Leiva | Berkant Barla Cambazoglu
Proceedings of the 24th ACM International Conference on Information and Knowledge Management, CIKM 2015, Melbourne, VIC, Australia, October 19 - 23, 2015

2014

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User engagement in online News: Under the scope of sentiment, interest, affect, and gaze
Ioannis Arapakis | Mounia Lalmas | Berkant Barla Cambazoglu | Mari-Carmen Marcos | Joemon M. Jose
2014 Volume 65 Issue 10

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Automatically embedding newsworthy links to articles: From implementation to evaluation
Ioannis Arapakis | Mounia Lalmas | Hakan Ceylan | Pinar Donmez
2014 Volume 65 Issue 1

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Impact of response latency on user behavior in web search
Ioannis Arapakis | Xiao Bai | Berkant Barla Cambazoglu
The 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR '14, Gold Coast , QLD, Australia - July 06 - 11, 2014

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Understanding Within-Content Engagement through Pattern Analysis of Mouse Gestures
Ioannis Arapakis | Mounia Lalmas | George Valkanas
Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, CIKM 2014, Shanghai, China, November 3-7, 2014

2012

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Automatically embedding newsworthy links to articles
Hakan Ceylan | Ioannis Arapakis | Pinar Donmez | Mounia Lalmas
21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

2011

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Theories, methods and current research on emotions in library and information science, information retrieval and human-computer interaction
Irene Lopatovska | Ioannis Arapakis
2011 Volume 47 Issue 4

2010

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A comparison of general vs personalised affective models for the prediction of topical relevance
Ioannis Arapakis | Konstantinos Athanasakos | Joemon M. Jose
Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010

2009

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Enriching user profiling with affective features for the improvement of a multimodal recommender system
Ioannis Arapakis | Yashar Moshfeghi | Hideo Joho | Reede Ren | David Hannah | Joemon M. Jose
Proceedings of the 8th ACM International Conference on Image and Video Retrieval, CIVR 2009, Santorini Island, Greece, July 8-10, 2009

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Modeling facial expressions and peripheral physiological signals to predict topical relevance
Ioannis Arapakis | Ioannis Konstas | Joemon M. Jose | Ioannis Kompatsiaris
Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2009, Boston, MA, USA, July 19-23, 2009

2008

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Affective feedback: an investigation into the role of emotions in the information seeking process
Ioannis Arapakis
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008

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Affective feedback: an investigation into the role of emotions in the information seeking process
Ioannis Arapakis | Joemon M. Jose | Philip D. Gray
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2008, Singapore, July 20-24, 2008

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