Leif Azzopardi

Guido Zuccon, Teerapong Leelanupab, Stewart Whiting, Emine Yilmaz, Joemon M. Jose, Leif Azzopardi: Crowdsourcing interactions: using crowdsourcing for evaluating interactive information retrieval systems. Inf. Retr. 16(2): 267-305 (2013)

Ilya Markov, Leif Azzopardi, Fabio Crestani: Reducing the Uncertainty in Resource Selection. ECIR 2013: 507-519

Colin Wilkie, Leif Azzopardi: An Initial Investigation on the Relationship between Usage and Findability. ECIR 2013: 808-811

Douglas Dowie, Leif Azzopardi: Re-leashed! The PuppyIR Framework for Developing Information Services for Children, Adults and Dogs. ECIR 2013: 824-827

Kenneth C. Scott-Brown, Marjon van der Pol, Claire Moncrieffe, Julia Allan, Paul Crook, Donna McAvoy, Leif Azzopardi, Mark Bamford, Ian Reynolds: Service-please: an interactive healthy eating serious game application for tablet computer. BCS HCI 2012: 381-385

Tamara Polajnar, Richard Glassey, Leif Azzopardi: Detection of News Feeds Items Appropriate for Children. ECIR 2012: 63-72

Guido Zuccon, Leif Azzopardi, Dell Zhang, Jun Wang: Top-k Retrieval Using Facility Location Analysis. ECIR 2012: 305-316

David Maxwell, Stefan Raue, Leif Azzopardi, Christopher W. Johnson, Sarah Oates: Crisees: Real-Time Monitoring of Social Media Streams to Support Crisis Management. ECIR 2012: 573-575

Leif Azzopardi, Douglas Dowie, Sergio Duarte Torres, Carsten Eickhoff, Richard Glassey, Karl Gyllstrom, Djoerd Hiemstra, Franciska de Jong, Frea Kruisinga, Kelly Ann Marshall, Sien Moens, Tamara Polajnar, Frans van der Sluis, Arjen P. de Vries: EmSe: Supporting Children's Information Needs within a Hospital Environment. ECIR 2012: 578-580

Leif Azzopardi, Myles Doolan, Richard Glassey: ALF: a client side logger and server for capturing user interactions in web applications. SIGIR 2012: 1003

Leif Azzopardi, Douglas Dowie, Kelly Ann Marshall, Richard Glassey: MaSe: create your own mash-up search interface. SIGIR 2012: 1008

Leif Azzopardi, James Purvis, Richard Glassey: PageFetch: a retrieval game for children (and adults). SIGIR 2012: 1010

Leif Azzopardi, Douglas Dowie, Kelly Ann Marshall: YooSee: a video browsing application for young children. SIGIR 2012: 1017

Leif Azzopardi, Dawei Song, Gabriella Kazai, Stephen Robertson, Stefan M. Rüger, Milad Shokouhi, Emine Yilmaz: Introduction to special issue on the second international conference on the theory of information retrieval. Inf. Retr. 14(1): 1-4 (2011)

Ronald T. Fernández, David E. Losada, Leif Azzopardi: Extending the language modeling framework for sentence retrieval to include local context. Inf. Retr. 14(4): 355-389 (2011)

Carly O'Neil, James Purvis, Leif Azzopardi: Fu-Finder: a game for studying querying behaviours. CIKM 2011: 2561-2564

Leif Azzopardi, Krisztian Balog: Towards a Living Lab for Information Retrieval Research and Development - A Proposal for a Living Lab for Product Search Tasks. CLEF 2011: 26-37

Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen: Back to the Roots: Mean-Variance Analysis of Relevance Estimations. ECIR 2011: 716-720

Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen: An Analysis of Ranking Principles and Retrieval Strategies. ICTIR 2011: 151-163

Guido Zuccon, Benjamin Piwowarski, Leif Azzopardi: On the use of Complex Numbers in Quantum Models for Information Retrieval. ICTIR 2011: 346-350

Guido Zuccon, Leif Azzopardi, Enrico Gasco: Investigating Subspace Distances in Semantic Spaces. IIR 2011

Leif Azzopardi: The economics in interactive information retrieval. SIGIR 2011: 15-24

Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen: The interactive PRP for diversifying document rankings. SIGIR 2011: 1227-1228

Tamara Polajnar, Richard Glassey, Leif Azzopardi: JuSe: a picture dictionary query system for children. SIGIR 2011: 1281-1282

Leif Azzopardi, Kalervo Järvelin, Jaap Kamps, Mark D. Smucker: Report on the SIGIR 2010 workshop on the simulation of interaction. SIGIR Forum 44(2): 35-47 (2010)

Richard Bache, Leif Azzopardi: Improving Access to Large Patent Corpora. T. Large-Scale Data- and Knowledge-Centered Systems 2: 103-121 (2010)

Claudia Hauff, Diane Kelly, Leif Azzopardi: A comparison of user and system query performance predictions. CIKM 2010: 979-988

Claudia Hauff, Djoerd Hiemstra, Leif Azzopardi, Franciska de Jong: A Case for Automatic System Evaluation. ECIR 2010: 153-165

Claudia Hauff, Leif Azzopardi, Djoerd Hiemstra, Franciska de Jong: Query Performance Prediction: Evaluation Contrasted with Effectiveness. ECIR 2010: 204-216

Guido Zuccon, Leif Azzopardi: Using the Quantum Probability Ranking Principle to Rank Interdependent Documents. ECIR 2010: 357-369

Guido Zuccon, Leif Azzopardi: Developing the Quantum Probability Ranking Principle. IIR 2010: 21-22

Desmond Elliot, Richard Glassey, Tamara Polajnar, Leif Azzopardi: Finding and filtering information for children. SIGIR 2010: 702

Guido Zuccon, Leif Azzopardi, Claudia Hauff, Keith van Rijsbergen: Estimating interference in the QPRP for subtopic retrieval. SIGIR 2010: 741-742

Claudia Hauff, Franciska de Jong, Diane Kelly, Leif Azzopardi: Query quality: user ratings and system predictions. SIGIR 2010: 743-744

Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen: Has portfolio theory got any principles? SIGIR 2010: 755-756

Leif Azzopardi, Wim Vanderbauwhede, Hideo Joho: Search system requirements of patent analysts. SIGIR 2010: 775-776

Leif Azzopardi, Ronald T. Fernández, David E. Losada: Improving sentence retrieval with an importance prior. SIGIR 2010: 779-780

Leif Azzopardi, Richard Bache: On the relationship between effectiveness and accessibility. SIGIR 2010: 889-890

Krisztian Balog, Leif Azzopardi, Maarten de Rijke: A language modeling framework for expert finding. Inf. Process. Manage. 45(1): 1-19 (2009)

Leif Azzopardi: Usage based effectiveness measures: monitoring application performance in information retrieval. CIKM 2009: 631-640

Claudia Hauff, Djoerd Hiemstra, Franciska de Jong, Leif Azzopardi: Relying on topic subsets for system ranking estimation. CIKM 2009: 1859-1862

Erik Graf, Leif Azzopardi, Keith van Rijsbergen: Automatically Generating Queries for Prior Art Search. CLEF (1) 2009: 480-490

Claudia Hauff, Leif Azzopardi, Djoerd Hiemstra: The Combination and Evaluation of Query Performance Prediction Methods. ECIR 2009: 301-312

Wim Vanderbauwhede, Leif Azzopardi, Mahmoud Moadeli: FPGA-accelerated Information Retrieval: High-efficiency document filtering. FPL 2009: 417-422

Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen: The Quantum Probability Ranking Principle for Information Retrieval. ICTIR 2009: 232-240

Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen: Semantic Spaces: Measuring the Distance between Different Subspaces. QI 2009: 225-236

Alvaro Francisco Huertas-Rosero, Leif Azzopardi, C. J. van Rijsbergen: Eraser Lattices and Semantic Contents. QI 2009: 266-275

Milad Shokouhi, Leif Azzopardi, Paul Thomas: Effective query expansion for federated search. SIGIR 2009: 427-434

Leif Azzopardi: Query side evaluation: an empirical analysis of effectiveness and effort. SIGIR 2009: 556-563

Leif Azzopardi, Wim Vanderbauwhede, Mahmoud Moadeli: Developing energy efficient filtering systems. SIGIR 2009: 664-665

Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen: Revisiting logical imaging for information retrieval. SIGIR 2009: 766-767

Leif Azzopardi, Ciaran Owens: Search engine predilection towards news media providers. SIGIR 2009: 774-775

Claudia Hauff, Leif Azzopardi: When is query performance prediction effective? SIGIR 2009: 829-830

David Elsweiler, Stefan Mandl, Leif Azzopardi: Evaluating Personal Information Management Behaviour using Markov Models. Wissensmanagement 2009: 280-288

Leif Azzopardi, Gabriella Kazai, Stephen E. Robertson, Stefan M. Rüger, Milad Shokouhi, Dawei Song, Emine Yilmaz (Eds.): Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval, ICTIR 2009, Cambridge, UK, September 10-12, 2009, Proceedings. Lecture Notes in Computer Science 5766, Springer 2009, isbn 978-3-642-04416-8

Ian Ruthven, Mark Baillie, Leif Azzopardi, Ralf Bierig, Emma Nicol, Simon O. Sweeney, Murat Yaciki: Contextual factors affecting the utility of surrogates within exploratory search. Inf. Process. Manage. 44(2): 437-462 (2008)

Mark Baillie, Leif Azzopardi, Ian Ruthven: Evaluating epistemic uncertainty under incomplete assessments. Inf. Process. Manage. 44(2): 811-837 (2008)

David E. Losada, Leif Azzopardi: An analysis on document length retrieval trends in language modeling smoothing. Inf. Retr. 11(2): 109-138 (2008)

David E. Losada, Leif Azzopardi: Assessing multivariate Bernoulli models for information retrieval. ACM Trans. Inf. Syst. 26(3) (2008)

David E. Losada, Leif Azzopardi, Mark Baillie: Revisiting the relationship between document length and relevance. CIKM 2008: 419-428

Leif Azzopardi, Vishwa Vinay: Retrievability: an evaluation measure for higher order information access tasks. CIKM 2008: 561-570

Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen: A Formalization of Logical Imaging for Information Retrieval Using Quantum Theory. DEXA Workshops 2008: 3-8

Leif Azzopardi, Vishwa Vinay: Accessibility in Information Retrieval. ECIR 2008: 482-489

Krisztian Balog, Leif Azzopardi, Maarten de Rijke: Resolving Person Names in Web People Search. Weaving Services and People on the World Wide Web 2008: 301-323

Alvaro Francisco Huertas-Rosero, Leif Azzopardi, C. J. van Rijsbergen: Characterising through Erasing: A Theoretical Framework for Representing Documents Inspired by Quantum Theory. CoRR abs/0802.1738 (2008)

Mark Baillie, Leif Azzopardi, Ian Ruthven: A Retrieval Evaluation Methodology for Incomplete Relevance Assessments. ECIR 2007: 271-282

Leif Azzopardi, Maarten de Rijke, Krisztian Balog: Building simulated queries for known-item topics: an analysis using six european languages. SIGIR 2007: 455-462

Milad Shokouhi, Mark Baillie, Leif Azzopardi: Updating collection representations for federated search. SIGIR 2007: 511-518

Krisztian Balog, Toine Bogers, Leif Azzopardi, Maarten de Rijke, Antal van den Bosch: Broad expertise retrieval in sparse data environments. SIGIR 2007: 551-558

Ian Ruthven, Leif Azzopardi, Mark Baillie, Ralf Bierig, Emma Nicol, Simon O. Sweeney, Murat Yakici: Intra-assessor consistency in question answering. SIGIR 2007: 727-728

Leif Azzopardi, Mark Baillie, Ian Ruthven: Persuasive, Authorative and Topical Answers for Complex Question Answering. TREC 2007

Leif Azzopardi: Incorporating context within the language modeling approach for ad hoc information retrieval. SIGIR Forum 40(1): 70 (2006)

Krisztian Balog, Leif Azzopardi, Jaap Kamps, Maarten de Rijke: Overview of WebCLEF 2006. CLEF 2006: 803-819

Leif Azzopardi, David E. Losada: An Efficient Computation of the Multiple-Bernoulli Language Model. ECIR 2006: 480-483

Fabio Simeoni, Leif Azzopardi, Fabio Crestani: An Application Framework for Distributed Information Retrieval. ICADL 2006: 192-201

Mark Baillie, Leif Azzopardi, Fabio Crestani: Towards better measures: evaluation of estimated resource description quality for distributed IR. Infoscale 2006: 41

Mark Baillie, Leif Azzopardi, Fabio Crestani: An evaluation of resource description quality measures. SAC 2006: 1110-1111

Krisztian Balog, Leif Azzopardi, Maarten de Rijke: Formal models for expert finding in enterprise corpora. SIGIR 2006: 43-50

Leif Azzopardi, Maarten de Rijke: Automatic construction of known-item finding test beds. SIGIR 2006: 603-604

Leif Azzopardi, Mark Baillie, Fabio Crestani: Adaptive query-based sampling for distributed IR. SIGIR 2006: 605-606

Mark Baillie, Leif Azzopardi, Fabio Crestani: Adaptive Query-Based Sampling of Distributed Collections. SPIRE 2006: 316-328

Cindy Azzopardi, Leif Azzopardi, Mark Baillie, Ralf Bierig, Emma Nicol, Ian Ruthven, Scott Sweeney: Contextual Information and Assessor Characteristics in Complex Question Answering. TREC 2006

Alex Bailey, Ian Ruthven, Leif Azzopardi: Evaluating User Studies in Information Access. CoLIS 2005: 251-251

Claudia Hauff, Leif Azzopardi: Age Dependent Document Priors in Link Structure Analysis. ECIR 2005: 552-554

Leif Azzopardi, Mark Girolami, Malcolm Crowe: Probabilistic hyperspace analogue to language. SIGIR 2005: 575-576

Leif Azzopardi, Krisztian Balog, Maarten de Rijke: Language Modeling Approaches for Enterprise Tasks. TREC 2005

Edgar Meij, Leonie IJzereef, Leif Azzopardi, Jaap Kamps, Maarten de Rijke: Combining Thesauri-Based Methods for Biomedical Retrieval. TREC 2005

Leif Azzopardi, Mark Girolami, Cornelis Joost van Rijsbergen: User biased document language modelling. SIGIR 2004: 542-543

Leif Azzopardi, Mark Girolami, Keith van Rijsbergen: Investigating the relationship between language model perplexity and IR precision-recall measures. SIGIR 2003: 369-370