People

Frank Hopfgartner

Ph.D.
Frank HopfgartnerTelefon - Frank Hopfgartner +49 30 - 314-74202
E-Mail - Frank Hopfgartner E-Mail
Private Webpage Private Webpage

Research Areas

Information Retrieval
Recommender Systems
User Modelling and Adaptivity
Lifelogging

Current Projects

CrowdRec
VideoSense
AuVeGoS

Other Activities

ICMR"14: Proceedings Co-Chair
MMM"14: Special Sessions Co-Chair
CLEF-NEWSREEL: Co-Organizer
GamifIR"14: Co-Organizer
MindTheGap"14: Co-Organizer

Personal Note

Dr. Frank Hopfgartner is Director of the Competence Centre Information Retrieval and Machine Learning (CC-IRML) at DAI-Labor and lecturer at Berlin Institute of Technology. Prior to joining CC-IRML, he worked as postdoctoral research fellow in Dublin and Berkeley, CA, respectively, and as research associate at Queen Mary, University of London. He received his PhD in Information Retrieval from the University of Glasgow, UK. His main research interest is on adaptive information retrieval, concept based retrieval and the automated evaluation of interactive information retrieval systems. Frank (co-) authored over 50 scientific publications in the field of multimedia retrieval and adaptive recommender systems.

Courses

SE - Advances in Semantic Search
PJ - Information Retrieval Systeme
IV - Semantic Search

Publications

2019

Continuous Evaluation of Large-scale Information Access Systems: A Case for Living Labs
Frank Hopfgartner, Krisztian Balog, Andreas Lommatzsch, Liadh Kelly, Benjamin Kille, Anne Schuth, Martha Larson
In: Information Retrieval Evaluation in a Changing World, Springer International Publishing; 2019

2018

MediaEval 2018 - Overview on NewsREEL Multimedia
Andreas Lommatzsch, Benjamin Kille, Frank Hopfgartner, Leif Ramming
In: Proceedings of the MediaEval Benchmarking Initiative for Multimedia Evaluation, 2018; 2018

2017

Countering Contextual Bias in TV Watching Behavior: Introducing Social Trend as External Contextual Factor in TV Recommenders
Felix Lorenz, Jing Yuan, Andreas Lommatzsch, Mu Mu, Nicholas Race, Frank Hopfgartner, Sahin Albayrak
In: ACM TVX 2017, Hilversum, NL; 2017

A Stream-based Resource for Multi-Dimensional Evaluation of Recommender Algorithms
Benjamin Kille, Andreas Lommatzsch, Frank Hopfgartner, Martha Larson, Arjen P. de Vries
In: In Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval; 2017

CLEF NewsREEL 2017: Comparing Multi-dimensional Offline and Online Evaluation of News Recommender Systems
Benjamin Kille, Andreas Lommatzsch, Frank Hopfgartner, Martha Larson, Torben Brodt
In: Working Notes of CLEF 2017, CEUR Workshop Proceedings Vol. 1866; 2017

CLEF 2017 NewsREEL Overview: A Stream-based Recommender Task for Evaluation and Education
Andreas Lommatzsch, Benjamin Kille, Frank Hopfgartner, Martha Larson, Özlem Özgöbek, Torben Brodt, Jonas Seiler
In: CLEF '17: Proceedings of the 8th International Conference of the CLEF Initiative; 2017

New frontiers of quantified self 3: exploring understudied categories of users
Amon Rapp, Federica Cena, Judy Kay, Bob Kummerfeld, Frank Hopfgartner, Till Plumbaum, Jakob Eg Larsen, Daniel A. Epstein, Rúben Gouveia
In: UbiComp/ISWC Adjunct 2017; 2017

Data-driven Gamification Design
Michael Meder, Amon Rapp, Till Plumbaum, Frank Hopfgartner
In: Proceedings of the 21st International Academic Mindtrek Conference; 2017

Proceedings of the First International Workshop on Data-Driven Gamification Design (DDGD 2017)
Michael Meder, Amon Rapp, Till Plumbaum, Frank Hopfgartner
In: CEUR-WS.org; 2017

2016

Third International Workshop on Gamification for Information Retrieval (GamifIR'16)
Michael Meder, Frank Hopfgartner, Gabriella Kazai, Udo Kruschwitz
In: Proceedings of the 39th International ACM SIGIR Conference on Research and Development in Information Retrieval, Pisa, Italy, 17-21 Jul 2016. (In Press); 2016

A comprehensive study on mid-level representation and ensemble learning for emotional analysis of video material
Esra Acar Celik, Frank Hopfgartner, Sahin Albayrak
2016

Breaking down violence detection: Combining divide-et-impera and coarse-to-fine strategies
Esra Acar Celik, Frank Hopfgartner, Sahin Albayrak
2016

A comprehensive study on mid-level representation and ensemble learning for emotional analysis of video material
Esra Acar Celik, Frank Hopfgartner, Sahin Albayrak
In: Multimedia Tools and Applications (MTAP); 2016

Breaking down violence detection: Combining divide-et-impera and coarse-to-fine strategies
Esra Acar Celik, Frank Hopfgartner, Sahin Albayrak
In: Neurocomputing; 2016

CLEF NewsREEL 2016: Comparing Multi-dimensional Offline and Online Evaluation of News Recommender Systems
Benjamin Kille, Andreas Lommatzsch, Frank Hopfgartner, Martha Larson, Jonas Seiler, Davide Malagoli, Andras Sereny, Torben Brodt
In: In Working Notes of CLEF 2016, Evora, Portugal, September 5-8, 2016, CEUR Workshop Proceedings Vol-1609; 2016

Overview of NewsREEL'16: Multi-dimensional Evaluation of Real-Time Stream-Recommendation Algorithms
Benjamin Kille, Andreas Lommatzsch, Gebrekirstos Gebremeskel, Frank Hopfgartner, Martha Larson, Jonas Seiler, Davide Malagoli, Andras Sereny, Torben Brodt, Arjen de Vries
In: 7th Intl. Conf. of the CLEF Assosiation, 2016, Evora, France, September 5-8, 2016; 2016

Idomaar: A Framework for Multi-dimensional Benchmarking of Recommender Algorithms
Mario Scriminaci, Andreas Lommatzsch, Benjamin Kille, Frank Hopfgartner, Martha Larson, Davide Malagoli, Andras Sereny
In: RecSys 2016 - 10th ACM Conference on Recommender Systems, Boston, MA, USA, 15th-19th September 2016; 2016

Algorithms Aside: Recommendation as the Lens of Life
Tamas Motajcsek, Jean-Yves Le Moine, Paolo Cremonesi, Kristaps Dobrajs, Frank Hopfgartner, Franca Garzotto, Ayşe Göker, Daniel Kohlsdorf, Andrew Demetriou, Martha Larson, Andreas Lommatzsch, Davide Malagoli, Ngoc Nguyen Thuy, Jasminko Novak, et al.
In: RecSys 2016 - 10th ACM Conference on Recommender Systems, Boston, MA, USA, 15th-19th September 2016; 2016

GamifIR 2016 – SIGIR 2016 Workshop on Gamification for Information Retrieval
Michael Meder, Frank Hopfgartner, Gabriella Kazai, Udo Kruschwitz
In: ACM SIGIR Forum; 2016

Proceedings of the Third International Workshop on Gamification for Information Retrieval (GamifIR 2016), Pisa, Italy, July 21, 2016
Frank Hopfgartner, Gabriella Kazai, Udo Kruschwitz, Michael Meder (Eds.)
In: CEUR-WS.org; 2016

New frontiers of quantified self 2: going beyond numbers
Amon Rapp, Federica Cena, Judy Kay, Bob Kummerfeld, Frank Hopfgartner, Till Plumbaum, Jakob Eg Larsen, Daniel A. Epstein, Rúben Gouveia
In: UbiComp '16; 2016

2015

Gamification of Workplace Activities
Michael Meder, Brijnesh Johannes Jain, Till Plumbaum, Frank Hopfgartner
In: Smart Information Services - Computational Intelligence for Real-Life Applications, Springer; 2015

Health Assistance for Immigrants
Till Plumbaum, Funda Klein-Ellinghaus, Anna Reeske, Kristin Pelz, Frank Hopfgartner
In: Smart Information Systems - Computational Intelligence for Real-Life Applications, Springer; 2015; 2015

Second International Workshop on Gamification for Information Retrieval
Frank Hopfgartner, Gabriella Kazai, Udo Kruschwitz, Michael Meder, Mark Shovman, (Eds.)
In: 37th European Conference on Information Retrieval (ECIR 2015); 2015

Detecting Violent Content in Hollywood Movies and User-Generated Videos
Esra Acar Celik, Melanie Irrgang, Dominique Maniry, Frank Hopfgartner
In: Smart Information Systems; 2015

Fusion of Learned Multi-Modal Representations and Dense Trajectories for Emotional Analysis in Videos
Esra Acar Celik, Frank Hopfgartner, Sahin Albayrak
In: Workshop on Content-Based Multimedia Indexing (CBMI); 2015

Stream-Based Recommendations: Online and Offline Evaluation as a Service
Benjamin Kille, Andreas Lommatzsch, Roberto Turrin, Andras Sereny, Martha Larson, Torben Brodt, Jonas Seiler, Frank Hopfgartner
2015

Context-aware LDA: Balancing Relevance and Diversity in TV Content Recommenders
Jing Yuan, Fikret Sivrikaya, Frank Hopfgartner, Andreas Lommatzsch, Mu Mu
In: Workshop RecsysTV, in conjunction with RecSys 2015, 19th Sept. Vienna, Austria; 2015

Overview of CLEF NewsREEL 2015: News Recommendation Evaluation Lab
Benjamin Kille, Andreas Lommatzsch, Roberto Turrin, Andras Sereny, Martha Larson, Torben Brodt, Jonas Seiler, Frank Hopfgartner
In: Working Notes for the CLEF 2015 Conference; 2015

ECIR 2015 workshop on gamification for information retrieval (GamifIR'15)
Frank Hopfgartner, Gabriella Kazai, Udo Kruschwitz, Michael Meder
In: ACM SIGIR Forum; 2015

2014

Understanding Affective Content of Music Videos Through Learned Representations
Esra Acar Celik,Frank Hopfgartner,Sahin Albayrak
In: MMM'14: Proceedings of the 20th International Conference on Multimedia Modeling; 2014

Audio-Visual Classification Video Browser
David Scott, Zhenxing Zhang, Rami Albatal, Kevin McGuinness, Esra Acar Celik, Frank Hopfgartner, Cathal Gurrin, Noel E. O'Connor Alan F. Smeaton
In: MMM'14: Proceedings of the 20th International Conference on Multimedia Modeling; 2014

DAIKnow: A Gamified Enterprise Bookmarking System
Michael Meder, Till Plumbaum, Frank Hopfgartner
In: ECIR'14, Demo Session: Proceedings of the 36st European Conference on Information Retrieval; 2014

Providing Multilingual Access to Health-Related Content
Till Plumbaum, Sascha Narr, Elif Eryilmaz, Frank Hopfgartner, Funda Klein-Ellinghaus, Anna Reese, and Sahin Albayrak
In: 25th European Medical Informatics Conference (MIE 2014); 2014

Distributed Enterprise Search using Software Agents
Erwin Gunadi, Michael Meder, Till Plumbaum, Christian Scheel, Frank Hopfgartner and Sahin Albayrak
In: AAMAS 2014 International conference on Autonomous Agents and Multi-Agent Systems Paris, France — May 05 - 09, 2014; 2014

When to recommend What? A survey on the role of context factors in IP-based TV Services
Jing Yuan, Frank Hopfgartner, Fikret Sivrikaya, Stefan Marx
In: MindTheGap'14 Workshop, colocated with iConference'14, Berlin, Germany (BEST PAPER AWARD); 2014

Users' Reading Habits in Online News Portals
Cagdas Esiyok, Benjamin Kille, Brijnesh Johannes Jain, Frank Hopfgartner, Sahin Albayrak
In: Proceedings of the Information Interaction in Context Conference (IIiX'14); 2014

A Visualization Tool for Violent Scenes Detection
Dominique Maniry, Esra Acar Celik, Frank Hopfgartner, Sahin Albayrak
In: International Conference on Multimedia Retrieval (ICMR); 2014

Benchmarking News Recommendations in a Living Lab
Frank Hopfgartner, Benjamin Kille, Andreas Lommatzsch, Till Plumbaum, Torben Brodt, Tobias Heintz
In: CLEF'14: Proceedings of the 5th International Conference of the CLEF Initiative; 2014

Overview of CLEF NEWSREEL 2014: News Recommendations Evaluation Labs
Benjamin Kille, Torben Brodt, Tobias Heintz, Frank Hopfgartner, Andreas Lommatzsch, Jonas Seiler
In: CLEF 2014 Evaluation Labs and Workshop; 2014

Proceedings LinkQS 2014: Linking the Quantified Self Workshop
Amon Rapp, Frank Hopfgartner, Till Plumbaum, Bob Kummerfeld, Judy Kay, Eelco Herder
In: CEUR; 2014

User-Item Reciprocity in Recommender Systems: Incentivizing the Crowd
Alan Said, Martha Larson, Domonkos Tikk, Paolo Cremonesi, Alexandros Karatzoglou, Frank Hopfgartner, Roberto Turrin, Joost Geurtz
In: UMAP ProS'14: Proceedings of the UMAP Project Synergy Workshop; 2014

Proceedings of the MindTheGap'14 Workshop
Udo Kruschwitz, Frank Hopfgartner, Cathal Gurrin
In: CEUR; 2014

Beyond Single-Shot Text Queries: Bridging the Gap(s) Between Research Communities
Udo Kruschwitz, Frank Hopfgartner, Cathal Gurrin
In: iConference'14: Proceedings of the Annual Conference of the iSchools organization; 2014

Advances in Multimedia Modeling, 20th International Conference, MMM 2014 (Part I)
Cathal Gurrin, Frank Hopfgartner, Wolfgang Hürst, Håvard Johansen, Hyowon Lee, Noel E. O'Connor
2014

Advances in Multimedia Modeling, 20th International Conference, MMM 2014 (Part II)
Cathal Gurrin, Frank Hopfgartner, Wolfgang Hürst, Håvard Johansen, Hyowon Lee, Noel E. O\'Connor
In: Springer Verlag; 2014

The Video Browser Showdown: A Live Evaluation of Interactive Video Search Tools
Klaus Schoeffmann, David Ahlström, Werner Bailer, Claudiu Cobârzan, Frank Hopfgartner, Kevin McGuinness, Cathal Gurrin, Christian Frisson, Duy-Dinh Le, Manfred del Fabro, Hongliang Bai
In: International Journal of Multimedia Information Retrieval; 2014

2013

DCU at MMM 2013 Video Browser Showdown
David Scott, Jinlin Guo, Cathal Gurrin, Frank Hopfgartner, Kevin McGuinness, Noel E. O'Connor, Alan F. Smeaton, Yang Yang, Zhenxing Zhang
In: MMM'13: Proceedings of the 19th International Conference on Multimedia Modeling; 2013

Quality Assessment of User-Generated Video using Camera Motion
Jinlin Guo, Cathal Gurrin, Frank Hopfgartner, Zhenxing Zhang, Songyang Lao
In: MMM'13: Proceedings of the 19th International Conference on Multimedia Modeling; 2013

Multimedia Retrieval and Adaptive Systems
Frank Hopfgartner
In: Computation for Humanities - Information Technology to Advance Society, CRC Press; 2013

Helping the helpers: How video retrieval can assist special interest groups
Frank Hopfgartner, David Scott, Hongyi Wang, Yang Yang, Zhenxing Zhang, Marissa Zhou, Cathal Gurrin
In: MMM'13: Proceedings of the 19th International Conference on Multimedia Modeling; 2013

Evaluating Novice and Expert Users on Handheld Video Retrieval Systems
David Scott, Frank Hopfgartner, Jinlin Guo, Cathal Gurrin
In: MMM'13: Proceedings of the 19th International Conference on Multimedia Modeling; 2013

User Interaction Templates for the Design of Lifelogging Systems
Frank Hopfgartner, Yang Yang, Marissa Zhou, Cathal Gurrin
In: Semantic Models for Adaptive Interactive Systems; 2013

Detecting Violent Content in Hollywood Movies by Mid-level Audio Representations
Esra Acar Celik, Frank Hopfgartner, Sahin Albayrak
In: Workshop on Content-Based Multimedia Indexing (CBMI); 2013

An Intelligent Health Assistant for Migrants
Till Plumbaum, Sascha Narr, Veit Schwartze, Frank Hopfgartner, Sahin Albayrak
In: PervasiveHealth'13: Proceedings of the 7th International Conference on Pervasive Computing Technologies for Healthcare; 2013

Workshop on Benchmarking Adaptive Retrieval and Recommender Systems - BARS 2013
Pablo Castells, Frank Hopfgartner, Alan Said, Mounia Lalmas
In: SIGIR'13: Proceedings of the 36th Annual ACM SIGIR Conference; 2013

2nd Workshop on Lifelong User Modelling
Frank Hopfgartner, Judy Kay, Bob Kummerfeld, Till Plumbaum
In: UMAP'13: Proceedings of the 21st Conference on User Modeling, Adaptation and Personalization; 2013

Proceedings of the First International Workshop on Lifelogging for Pervasive Health
Frank Hopfgartner, Cathal Gurrin, Susanne Boll-Westermann
In: PervasiveHealth'13: Proceedings of the 7th International Conference on Pervasive Computing Technologies for Healthcare; 2013

International News Recommender Systems Workshop and Challenge (NRS)
Jon Atle Gulla, Kevin C. Almeroth, Mozhgan Tavakolifard, Frank Hopfgartner, Till Plumbaum, Benjamin Kille, Andreas Lommatzsch, Torben Brodt, Arthur Bucko, Tobias Heintz
In: ACM RecSys: Proceedings of the Sventh ACM Conference on Recommender Systems; 2013

Violence Detection in Hollywood Movies by the Fusion of Visual and Mid-level Audio Cues
Esra Acar Celik, Frank Hopfgartner, Sahin Albayrak
In: ACM Multimedia (ACMMM); 2013

Perceived and Actual Role of Gamification Principles
Michael Meder, Till Plumbaum, Frank Hopfgartner
In: Proceedings of the 2013 IEEE/ACM 6th International Conference on Utility and Cloud Computing; 2013

Report on the SIGIR 2013 Workshop on Benchmarking Adaptive Retrieval and Recommender Systems
Pablo Castells, Frank Hopfgartner, Alan Said, Mounia Lalmas
In: SIGIR Forum; 2013

Activating the Crowd: Exploiting User-Item Reciprocity for Recommendation
Martha Larson, Alan Said, Yue Shi, Paolo Cremonesi, Domonkos Tikk, Alexandros Karatzoglou, Linas Baltrunas, Jozef Geurts, Xavi Anguera, Frank Hopfgartner
In: CrowdRec'13: Proceedings of the International Workshop on Crowdsourcing and Human Computation for Recommender Systems; 2013

The plista Dataset
Benjamin Kille, Frank Hopfgartner, Torben Brodt, Tobias Heintz
In: NRS'13: Proceedings of the International Workshop and Challenge on News Recommender Systems; 2013

Workshop and Challenge on News Recommender Systems
Mozhgan Tavakolifard, Jon Atle Gulla, Kevin C. Almeroth, Frank Hopfgartner, Benjamin Kille, Till Plumbaum, Andreas Lommatzsch, Torben Brodt, Arthur Bucko, Tobias Heintz
In: RecSys'13: Proceedings of the ACM Conference Series on Recommender Systems, pages 481-482. ACM; 2013

CMAS: fully integrated portable Centrifugal Microfluidic Analysis System for on-site colorimetric analysis
Monika Czugala, Damian Maher, Fiachra Collins, Robert Burger, Frank Hopfgartner, Yang Yang, Jiang Zhaou, Jens Ducree, Alan F. Smeaton, Kevin J. Fraser, Dermot Diamond, Fernando Benitez-Lopez
In: RSC Advances, 3, pages 15928 - 15938, The Royal Society of Chemistry; 2013

2012

An Experimental Evaluation of Ontology-Based User Profiles
Frank Hopfgartner, Joemon M. Jose
In: Multimedia Tools and Applications; 2012

Detecting Complex Events in User-Generated Video using Concept Classifiers
Jinlin Guo, David Scott, Frank Hopfgartner, Cathal Gurrin
In: CBMI'12: Proceedings of the 10th Workshop on Content-Based Multimedia Indexing, Springer Verlag; 2012

Supporting Browsing of User Generated Video on a Tablet
Frank Hopfgartner, David Scott, Jinlin Guo, Cathal Gurrin, Alan F. Smeaton
In: ICMR'12: Proceedings of the ACM International Conference on Multimedia Retrieval, Springer Verlag; 2012

Clipboard: A Visual Search and Browsing Experience for Tablet and PC
David Scott, Jinlin Guo, Hongyi Wang, Yang Yang, Frank Hopfgartner, Cathal Gurrin
In: MMM'12: Proceedings of the 18th International Conference on Multimedia Modeling, Springer Verlag; 2012

TRECVid 2012 Experiments at Dublin City University
Jinlin Guo, Zhenxing Zhang, David Scott, Frank Hopfgartner, Rami Albatal, Cathal Gurrin, Alan F. Smeaton
In: TRECVid'12; 2012

2011

TRECVid 2011 Experiments at Dublin City University
David Scott, Jinlin Guo, Colum Foley, Frank Hopfgartner, Cathal Gurrin, Alan F. Smeaton
In: TRECVid'11; 2011

Development of a Test Collection for Studying Long-Term User Modelling
Frank Hopfgartner, Joemon M. Jose
In: LWA'11: Proceedings of the Workshop Information Retrieval at Lernen, Wissen, Adaptivität, Magdeburg, Germany; 2011

A Survey of Advanced Content Management Tools for TV Post-Production
Werner Bailer, Klaus Schöffmann, Frank Hopfgartner
In: TV Content Analysis: Techniques and Applications, CRC Press; 2011

Capturing Long-Term User Interests in Online Television News Programs
Frank Hopfgartner
In: TV Content Analysis: Techniques and Applications, CRC Press; 2011

Adaptive Interactive News Video Recommendation: An Example System
Frank Hopfgartner
In: SEMAIS'11: Proceedings of the Second International Workshop on Semantic Models for Adaptive Interactive Systems, Palo Alto, CA, USA; 2011

Effects of Usage Based Feedback on Video Retrieval: A Simulation Based Study
David Vallet, Frank Hopfgartner, Joemon M. Jose, Pablo Castells
In: ACM Transactions on Information Systems; 2011

Information Organisation Issues in Multimedia Retrieval using Low-Level Features
Frank Hopfgartner, Reede Ren, Thierry Urruty, Joemon M. Jose
In: Multimedia Semantics: Metadata, Analysis and Interaction, Wiley; 2011

2010

Personalised Video Retrieval: Application of Implicit Feedback and Semantic User Profiles
Frank Hopfgartner
In: ACM SIGMultimedia Records; 2010

Personalised Video Retrieval: Application of Implicit Feedback and Semantic User Profiles
Frank Hopfgartner
In: SIGIR Forum; 2010

Semantic User Profiling Techniques for Personalised Multimedia Recommendation
Frank Hopfgartner, Joemon M. Jose
In: ACM/Springer Multimedia Systems; 2010

Video Browsing Interfaces and Applications: A Review
Klaus Schöffmann, Frank Hopfgartner, Oge Marques, László Böszörményi, Joemon M. Jose
In: SPIE Reviews; 2010

Semantic User Modelling for Personal News Video Retrieval
Frank Hopfgartner, Joemon M. Jose
In: MMM'10: Proceedings of the 16th International Conference on Multimedia Modeling, Chongqing, China; 2010

News Video Story Segmentation based on Semantic Coherence and Content Similarity
Hemant Misra, Frank Hopfgartner, Anuj Goyal, P. Punitha, Joemon M. Jose
In: MMM'10: Proceedings of the 16th International Conference on Multimedia Modeling, Chongqing, China; 2010

Simulated Evaluation of Faceted Browsing based on Feature Selection
Frank Hopfgartner, Thierry Urruty, Pablo Bermejo, Robert Villa, Joemon M. Jose
In: Multimedia Tools and Applications; 2010

2009

Comparison of Balancing Techniques for Multimedia IR over Imbalanced Datasets
Pablo Bermejo, Frank Hopfgartner, Jose A. Gámez, Jose Puerta Callejón, Joemon M. Jose
In: ISCIS'09: Proceedings of the 24th IEEE International Symposium on Computer and Information Sciences; 2009

An Architecture for Life-Long User Modelling
Desmond Elliott, Frank Hopfgartner, Teerapong Leelanupab, Yashar Moshfeghi, Joemon M. Jose
In: LLUM'09: Proceedings of the Lifelong User Modelling Workshop; 2009

User Centered Evaluation of a Recommendation Based Image Browsing System
Teerapong Leelanupab, Frank Hopfgartner, Joemon M. Jose
In: IICAI'09: Proceedings of the Fourth Indian International Conference on Artificial Intelligence; 2009

AIR 2008: Second International Workshop on Adaptive Information Retrieval
Hideo Joho, Frank Hopfgartner, Joemon M. Jose, C. J. van Rijsbergen
In: SIGIR Forum; 2009

Supporting Aspect-Based Video Browsing - Analysis of a User Study
Thierry Urruty, Frank Hopfgartner, David Hannah, Desmond Elliott, Joemon M. Jose
In: CIVR'09: Proceedings of the ACM International Conference on Image and Video Retrieval; 2009

Aspect-Based Video Browsing - A User Study
Frank Hopfgartner, Thierry Urruty, David Hannah, Desmond Elliott, Joemon M. Jose
In: ICME'09: Proceedings of the IEEE International Conference on Multimedia and Expo; 2009

On User Modelling for Personalised News Video Recommendation
Frank Hopfgartner, Joemon M. Jose
In: UMAP'09: Proceedings of the First and Seventeenth International Conference on User Modeling, Adaptation, and Personalization; 2009

Split and Merge based Story Segmentation in News Videos
Anuj Goyal, P. Punitha, Frank Hopfgartner, Joemon M. Jose
In: ECIR'09: Proceedings of the 31st European Conference on Information Retrieval; 2009

Diversity, Assortment, Dissimilarity, Variety: A Study of Diversity Measures using Low Level Features for Video Retrieval
Martin Halvey, P. Punitha, David Hannah, Robert Villa, Frank Hopfgartner, Joemon M. Jose
In: ECIR'09: Proceedings of the 31st European Conference on Information Retrieval; 2009

Toward and Adaptive Video Retrieval System
Frank Hopfgartner, Joemon M. Jose
In: Advances in Semantic Media Adaptation and Personalization, CRC Press; 2009

Facet-Based Browsing in Video Retrieval: A Simulation-Based Evaluation
Frank Hopfgartner, Thierry Urruty, Robert Villa, Joemon M. Jose
In: MMM'09: Proceedings of the 15th International Conference on Multimedia Modeling; 2009

2008

Community based Feedback Techniques to Improve Video Search
David Vallet, Frank Hopfgartner, Martin Halvey, Joemon M. Jose
In: Signal, Image and Video Processing, Springer Verlag; 2008

An Adaptive News Video Retrieval Framework
Frank Hopfgartner, David Hannah, Joemon M. Jose
In: SAMT'08: Proceedings of the Third International Conference on Semantic and Digital Media Technologies; 2008

Implicit Search Trails for Video Recommendation
Martin Halvey, Frank Hopfgartner, David Vallet, Joemon M. Jose
In: SAMT'08: Proceedings of the Third International Conference on Semantic and Digital Media Technologies; 2008

Capturing Multiple Interests in News Video Retrieval by Incorporating the Ostensive Model
Frank Hopfgartner, David Hannah, Nicholas Gildea, Joemon M. Jose
In: PersDB'08: Proceedings of the Second International Workshop on Personalized Access, Profile Management, and Context Awareness in Databases; 2008

Search Trails using User Feedback to Improve Video Search
Frank Hopfgartner, David Vallet, Martin Halvey, Joemon M. Jose
In: MM'08: Proceedings of the ACM International Conference on Multimedia; 2008

Collaborative Search Trails for Video Search
Frank Hopfgartner, David Vallet, Martin Halvey, Joemon M. Jose
In: Proceedings of the First International Workshop on Collaborative Search; 2008

Exploiting Log Files in Video Retrieval
Frank Hopfgartner, Thierry Urruty, Robert Villa, Nicholas Gildea, Joemon M. Jose
In: JCDL'08: Proceedings of the Joint Conference on Digital Libraries; 2008

A Cluster-Based Simulation of Facet-Based Search
Thierry Urruty, Frank Hopfgartner, Robert Villa, Nicholas Gildea, Joemon M. Jose
In: JCDL'08: Proceedings of the Joint Conference on Digital Libraries; 2008

Use of Implicit Graph for Recommending Relevant Videos: A Simulated Evaluation
David Vallet, Frank Hopfgartner, Joemon M. Jose
In: ECIR'08: Proceedings of the 30th European Conference on Information Retrieval; 2008

Proceedings of the Second International Workshop on Adaptive Information Retrieval
Hideo Joho, Frank Hopfgartner, Joemon M. Jose, C. J. van Rijsbergen
In: London, United Kingdom; 2008

Automatically Creating and Comparing Features and Contexts
Pablo Bermejo, Frank Hopfgartner, Joemon M. Jose
In: AIR'08: Proceedings of the Second International Workshop on Adaptive Information Retrieval; 2008

Studying Interaction Methodologies in Video Retrieval
Frank Hopfgartner
In: Proceedings of the VLDB Embowment; 2008

2007

A News Video Retrieval Framework for the Study of Implicit Relevance
Frank Hopfgartner, Joemon M. Jose
In: SMAP'07: Proceedings of the Second International Workshop on Semantic Media Adaptation and Personalization; 2007

Evaluating the Implicit Feedback Models for Adaptive Video Retrieval
Frank Hopfgartner, Joemon M. Jose
In: MIR'07: Proceedings of the 9th ACM SIGMM International Workshop on Multimedia Information Retrieval; 2007

Simulated Testing of an Adaptive Multimedia Information System
Frank Hopfgartner, Jana Urban, Robert Villa, Joemon M. Jose
In: CBMI'07: Proceedings of the Fifth International Workshop on Content-Based Multimedia Indexing; 2007

Understanding Video Retrieval
Frank Hopfgartner
In: VDM Verlag; 2007

2006

Glasgow University at TRECVID 2006
Jana Urban, Xavier Hilaire, Frank Hopfgartner, Robert Villa, Joemon M. Jose, Siripinyo Cgabtanunee, Yoshihiko Gotoh
In: TRECVid'06; 2006

Adaptive Video Retrieval
Frank Hopfgartner, Robert Villa, Jana Urban
In: AIR'06: Proceedings of the First International Workshop on Adaptive Information Retrieval; 2006