| 2026 | CHIIR | Information Farming: From Berry Picking to Berry Growing. | Leif Azzopardi, Adam Roegiest |
| 2026 | ECIR | The Third Search Futures Workshop at ECIR'26. | Leif Azzopardi, Charles L. A. Clarke, Claudia Hauff, Yubin Kim, Zhaochun Ren, Adam Roegiest, Johanne R. Trippas, Saber Zerhoudi |
| 2025 | ACL | Evaluation of Attribution Bias in Generator-Aware Retrieval-Augmented Large Language Models. | Amin Abolghasemi, Leif Azzopardi, Seyyed Hadi Hashemi, Maarten de Rijke, Suzan Verberne |
| 2025 | CHIIR | Assessing Risks in Online Information Sharing. | Leif Azzopardi, Emma Nicol, Jo Briggs, Wendy Moncur, Burkhard Schafer, Callum Nash, Melissa Duheric |
| 2025 | CHIIR | Search Changes Consumers' Minds: How Recognizing Gaps Drives Sustainable Choices: How Recognizing Gaps Drives Sustainable Choices. | Frans van der Sluis, Leif Azzopardi |
| 2025 | ECIR | Improving the Reusability of Conversational Search Test Collections. | Zahra Abbasiantaeb, Chuan Meng, Leif Azzopardi, Mohammad Aliannejadi |
| 2025 | EMNLP | POW: Political Overton Windows of Large Language Models. | Leif Azzopardi, Yashar Moshfeghi |
| 2025 | SIGIR | Conversational Gold: Evaluating Personalized Conversational Search System Using Gold Nuggets. | Zahra Abbasiantaeb, Simon Lupart, Leif Azzopardi, Jeffrey Dalton, Mohammad Aliannejadi |
| 2025 | SIGIR | From Query to Conscience: The Importance of Information Retrieval in Empowering Socially Responsible Consumerism. | Frans van der Sluis, Leif Azzopardi, Florian Meier |
| 2024 | CHIIR | Search under Uncertainty: Cognitive Biases and Heuristics - Tutorial on Modeling Search Interaction using Behavioral Economics. | Leif Azzopardi, Jiqun Liu |
| 2024 | CHIIR | Seeking Socially Responsible Consumers: Exploring the Intention-Search-Behaviour Gap. | Leif Azzopardi, Frans van der Sluis |
| 2024 | CHIIR | The Influence of Presentation and Performance on User Satisfaction. | Kanaad Pathak, Leif Azzopardi, Martin Halvey |
| 2024 | CHIIR | Uncharted Territory: Understanding Exploratory Search Behaviours in Literature Reviews. | Ayah Soufan, Ian Ruthven, Leif Azzopardi |
| 2024 | ECIR | Measuring Bias in a Ranked List Using Term-Based Representations. | Amin Abolghasemi, Leif Azzopardi, Arian Askari, Maarten de Rijke, Suzan Verberne |
| 2024 | ECIR | The Search Futures Workshop. | Leif Azzopardi, Charles L. A. Clarke, Paul B. Kantor, Bhaskar Mitra, Johanne R. Trippas, Zhaochun Ren |
| 2024 | ECIR | Ranking Heterogeneous Search Result Pages Using the Interactive Probability Ranking Principle. | Kanaad Pathak, Leif Azzopardi, Martin Halvey |
| 2024 | SIGIR | TREC iKAT 2023: A Test Collection for Evaluating Conversational and Interactive Knowledge Assistants. | Mohammad Aliannejadi, Zahra Abbasiantaeb, Shubham Chatterjee, Jeffrey Dalton, Leif Azzopardi |
| 2024 | SIGIR | Search under Uncertainty: Cognitive Biases and Heuristics: A Tutorial on Testing, Mitigating and Accounting for Cognitive Biases in Search Experiments. | Jiqun Liu, Leif Azzopardi |
| 2023 | CHIIR | Driven to Distraction: Examining the Influence of Distractors on Search Behaviours, Performance and Experience. | Leif Azzopardi, David Maxwell, Martin Halvey, Claudia Hauff |
| 2023 | CIKM | Retrievability Bias Estimation Using Synthetically Generated Queries. | Amin Abolghasemi, Suzan Verberne, Arian Askari, Leif Azzopardi |
| 2022 | CHIIR | Searching the Literature: An Analysis of an Exploratory Search Task. | Ayah Soufan, Ian Ruthven, Leif Azzopardi |
| 2022 | ECIR | Improving BERT-based Query-by-Document Retrieval with Multi-task Optimization. | Amin Abolghasemi, Suzan Verberne, Leif Azzopardi |
| 2022 | ECIR | Towards Building Economic Models of Conversational Search. | Leif Azzopardi, Mohammad Aliannejadi, Evangelos Kanoulas |
| 2022 | SIGIR | Are Taylor's Posts Risky? Evaluating Cumulative Revelations in Online Personal Data: A persona-based tool for evaluating awareness of online risks and harms. | Leif Azzopardi, Jo Briggs, Melissa Duheric, Callum Nash, Emma Nicol, Wendy Moncur, Burkhard Schafer |
| 2022 | SIGIR | A Flexible Framework for Offline Effectiveness Metrics. | Alistair Moffat, Joel Mackenzie, Paul Thomas, Leif Azzopardi |
| 2021 | CHIIR | Cognitive Biases in Search: A Review and Reflection of Cognitive Biases in Information Retrieval. | Leif Azzopardi |
| 2021 | CHIIR | User Models, Metrics and Measures of Search: A Tutorial on the C/W/L Evaluation Framework. | Leif Azzopardi, Alistair Moffat, Paul Thomas, Guido Zuccon |
| 2021 | CHIIR | Investigating the Influence of Ads on User Search Performance, Behaviour, and Experience during Information Seeking. | Olivia Foulds, Leif Azzopardi, Martin Halvey |
| 2021 | CHIIR | Untangling Cost, Effort, and Load in Information Seeking and Retrieval. | Molly McGregor, Leif Azzopardi, Martin Halvey |
| 2021 | CIKM | Analysing Mixed Initiatives and Search Strategies during Conversational Search. | Mohammad Aliannejadi, Leif Azzopardi, Hamed Zamani, Evangelos Kanoulas, Paul Thomas, Nick Craswell |
| 2021 | ECIR | AWESSOME: An Unsupervised Sentiment Intensity Scoring Framework Using Neural Word Embeddings. | Amal Htait, Leif Azzopardi |
| 2021 | ICTIR | ERR is not C/W/L: Exploring the Relationship Between Expected Reciprocal Rank and Other Metrics. | Leif Azzopardi, Joel Mackenzie, Alistair Moffat |
| 2021 | ICTIR | Sentiment Intensity Prediction using Neural Word Embeddings. | Amal Htait, Leif Azzopardi |
| 2021 | ICTIR | Untangling the Concept of Task in Information Seeking and Retrieval. | Ayah Soufan, Ian Ruthven, Leif Azzopardi |
| 2020 | CHIIR | Data-Driven Evaluation Metrics for Heterogeneous Search Engine Result Pages. | Leif Azzopardi, Ryen W. White, Paul Thomas, Nick Craswell |
| 2020 | CHIIR | Made to Measure: A Workshop on Human-centred metrics for information seeking. | George Buchanan, Dana McKay, Charles L. A. Clarke, Leif Azzopardi, Johanne R. Trippas |
| 2020 | CHIIR | Reflecting upon Perceptual Speed Tests in Information Retrieval: Limitations, Challenges, and Recommendations. | Olivia Foulds, Leif Azzopardi, Martin Halvey |
| 2020 | HAI | Impact of Agent Reliability and Predictability on Trust in Real Time Human-Agent Collaboration. | Sylvain Daronnat, Leif Azzopardi, Martin Halvey, Mateusz Dubiel |
| 2020 | ICTIR | Analyzing the Influence of Bigrams on Retrieval Bias and Effectiveness. | Abdulaziz AlQatan, Leif Azzopardi, Yashar Moshfeghi |
| 2020 | ICTIR | Interactive Evaluation of Conversational Agents: Reflections on the Impact of Search Task Design. | Mateusz Dubiel, Martin Halvey, Leif Azzopardi, Sylvain Daronnat |
| 2020 | ICTIR | Using Sentiment Analysis for Pseudo-Relevance Feedback in Social Book Search. | Amal Htait, Sbastien Fournier, Patrice Bellot, Leif Azzopardi, Gabriella Pasi |
| 2020 | SIGIR | Predicting Perceptual Speed from Search Behaviour. | Olivia Foulds, Alessandro Suglia, Leif Azzopardi, Martin Halvey |
| 2020 | SIGIR | DataMirror: Reflecting on One's Data Self: A Tool for Social Media Users to Explore Their Digital Footprints. | Amal Htait, Leif Azzopardi, Emma Nicol, Wendy Moncur |
| 2019 | CHI | Building Economic Models of Human Computer Interaction. | Leif Azzopardi, Guido Zuccon |
| 2019 | ECIR | CLEF eHealth 2019 Evaluation Lab. | Liadh Kelly, Lorraine Goeuriot, Hanna Suominen, Mariana L. Neves, Evangelos Kanoulas, Ren Spijker, Leif Azzopardi, Dan Li, Jimmy, Joo R. M. Palotti, Guido Zuccon |
| 2019 | SIGIR | Building Economic Models and Measures of Search. | Leif Azzopardi, Alistair Moffat, Paul Thomas, Guido Zuccon |
| 2019 | SIGIR | cwl_eval: An Evaluation Tool for Information Retrieval. | Leif Azzopardi, Paul Thomas, Alistair Moffat |
| 2019 | SIGIR | Looking for Opportunities: Challenges in Procurement Search. | Stuart Mackie, David Macdonald, Leif Azzopardi, Yashar Moshfeghi |
| 2018 | ECIR | Information Scent, Searching and Stopping - Modelling SERP Level Stopping Behaviour. | David Maxwell, Leif Azzopardi |
| 2018 | SIGIR | Measuring the Utility of Search Engine Result Pages: An Information Foraging Based Measure. | Leif Azzopardi, Paul Thomas, Nick Craswell |
| 2018 | SIGIR | Query Variation Performance Prediction for Systematic Reviews. | Harrisen Scells, Leif Azzopardi, Guido Zuccon, Bevan Koopman |
| 2017 | CHIIR | Building Cost-Benefit Models of Information Interactions. | Leif Azzopardi |
| 2017 | CHIIR | Second International Workshop On the Evaluation of Collaborative Information Seeking and Retrieval (Ecol'17). | Leif Azzopardi, Jeremy Pickens, Chirag Shah, Laure Soulier, Lynda Tamine |
| 2017 | CIKM | An Empirical Analysis of Pruning Techniques: Performance, Retrievability and Bias. | Ruey-Cheng Chen, Leif Azzopardi, Falk Scholer |
| 2017 | CIKM | Integrating the Framing of Clinical Questions via PICO into the Retrieval of Medical Literature for Systematic Reviews. | Harrisen Scells, Guido Zuccon, Bevan Koopman, Anthony Deacon, Leif Azzopardi, Shlomo Geva |
| 2017 | CIKM | Algorithmic Bias: Do Good Systems Make Relevant Documents More Retrievable? | Colin Wilkie, Leif Azzopardi |
| 2017 | ECIR | A Task Completion Engine to Enhance Search Session Support for Air Traffic Work Tasks. | Yashar Moshfeghi, Raoul Rothfeld, Leif Azzopardi, Peter Triantafillou |
| 2017 | ICTIR | Personalised Search Time Prediction using Markov Chains. | Vu Tran, David Maxwell, Norbert Fuhr, Leif Azzopardi |
| 2017 | ICTIR | An Initial Investigation of Query Expansion Bias. | Colin Wilkie, Leif Azzopardi |
| 2017 | SIGIR | The Lucene for Information Access and Retrieval Research (LIARR) Workshop at SIGIR 2017. | Leif Azzopardi, Matt Crane, Hui Fang, Grant Ingersoll, Jimmy Lin, Yashar Moshfeghi, Harrisen Scells, Peilin Yang, Guido Zuccon |
| 2017 | SIGIR | Exploring the Query Halo Effect in Site Search: Leading People to Longer Queries. | Djoerd Hiemstra, Claudia Hauff, Leif Azzopardi |
| 2017 | SIGIR | A Study of Snippet Length and Informativeness: Behaviour, Performance and User Experience. | David Maxwell, Leif Azzopardi, Yashar Moshfeghi |
| 2017 | SIGIR | A Test Collection for Evaluating Retrieval of Studies for Inclusion in Systematic Reviews. | Harrisen Scells, Guido Zuccon, Bevan Koopman, Anthony Deacon, Leif Azzopardi, Shlomo Geva |
| 2016 | CHIIR | Impacts of Time Constraints and System Delays on User Experience. | Anita Crescenzi, Diane Kelly, Leif Azzopardi |
| 2016 | CIKM | Agents, Simulated Users and Humans: An Analysis of Performance and Behaviour. | David Maxwell, Leif Azzopardi |
| 2016 | ECIR | Two Scrolls or One Click: A Cost Model for Browsing Search Results. | Leif Azzopardi, Guido Zuccon |
| 2016 | ICTIR | Advances in Formal Models of Search and Search Behaviour. | Leif Azzopardi, Guido Zuccon |
| 2016 | ICTIR | An Analysis of the Cost and Benefit of Search Interactions. | Leif Azzopardi, Guido Zuccon |
| 2016 | ICTIR | A Topical Approach to Retrievability Bias Estimation. | Colin Wilkie, Leif Azzopardi |
| 2016 | SIGIR | Simulation of Interaction: A Tutorial on Modelling and Simulating User Interaction and Search Behaviour. | Leif Azzopardi |
| 2016 | SIGIR | Simulating Interactive Information Retrieval: SimIIR: A Framework for the Simulation of Interaction. | David Maxwell, Leif Azzopardi |
| 2016 | SIGIR | InfoScout: An Interactive, Entity Centric, Person Search Tool. | Sean McKeown, Martynas Buivys, Leif Azzopardi |
| 2015 | ADCS | Integrating and Evaluating Neural Word Embeddings in Information Retrieval. | Guido Zuccon, Bevan Koopman, Peter Bruza, Leif Azzopardi |
| 2015 | CIKM | ECol 2015: First international workshop on the Evaluation on Collaborative Information Seeking and Retrieval. | Leif Azzopardi, Jeremy Pickens, Tetsuya Sakai, Laure Soulier, Lynda Tamine |
| 2015 | CIKM | Searching and Stopping: An Analysis of Stopping Rules and Strategies. | David Maxwell, Leif Azzopardi, Kalervo Jrvelin, Heikki Keskustalo |
| 2015 | CIKM | Query Length, Retrievability Bias and Performance. | Colin Wilkie, Leif Azzopardi |
| 2015 | ECIR | A Tutorial on Measuring Document Retrievability. | Leif Azzopardi |
| 2015 | ECIR | A Game of Search. | Leif Azzopardi |
| 2015 | ECIR | The Impact of Query Interface Design on Stress, Workload and Performance. | Ashlee Edwards, Diane Kelly, Leif Azzopardi |
| 2015 | ECIR | Retrievability and Retrieval Bias: A Comparison of Inequality Measures. | Colin Wilkie, Leif Azzopardi |
| 2015 | ICTIR | Theory of Retrieval: The Retrievability of Information. | Leif Azzopardi |
| 2015 | ICTIR | An Analysis of Theories of Search and Search Behavior. | Leif Azzopardi, Guido Zuccon |
| 2015 | SIGIR | Building and Using Models of Information Seeking, Search and Retrieval: Full Day Tutorial. | Leif Azzopardi, Guido Zuccon |
| 2015 | SIGIR | Time Pressure and System Delays in Information Search. | Anita Crescenzi, Diane Kelly, Leif Azzopardi |
| 2015 | SIGIR | Untangling Result List Refinement and Ranking Quality: a Framework for Evaluation and Prediction. | Jiyin He, Marc Bron, Arjen P. de Vries, Leif Azzopardi, Maarten de Rijke |
| 2015 | SIGIR | How many results per page?: A Study of SERP Size, Search Behavior and User Experience. | Diane Kelly, Leif Azzopardi |
| 2015 | SIGIR | An Initial Investigation into Fixed and Adaptive Stopping Strategies. | David Maxwell, Leif Azzopardi, Kalervo Jrvelin, Heikki Keskustalo |
| 2014 | CIKM | A Retrievability Analysis: Exploring the Relationship Between Retrieval Bias and Retrieval Performance. | Colin Wilkie, Leif Azzopardi |
| 2014 | ECIR | PageFetch 2: gamification the sequel. | Leif Azzopardi, Martin Bevc, Andrew Gardner, David Maxwell, Abdullah Razzouk |
| 2014 | ECIR | Page Retrievability Calculator. | Leif Azzopardi, Rosanne English, Colin Wilkie, David Maxwell |
| 2014 | ECIR | Studying user browsing behavior through gamified search tasks. | Jiyin He, Marc Bron, Leif Azzopardi, Arjen P. de Vries |
| 2014 | ECIR | Best and Fairest: An Empirical Analysis of Retrieval System Bias. | Colin Wilkie, Leif Azzopardi |
| 2014 | ECIR | Efficiently Estimating Retrievability Bias. | Colin Wilkie, Leif Azzopardi |
| 2014 | SIGIR | Modelling interaction with economic models of search. | Leif Azzopardi |
| 2014 | SIGIR | The retrievability of documents. | Leif Azzopardi |
| 2013 | ADCS | Economic models of search. | Leif Azzopardi |
| 2013 | CIKM | High throughput filtering using FPGA-acceleration. | Wim Vanderbauwhede, Anton Frolov, Leif Azzopardi, Sai Rahul Chalamalasetti, Martin Margala |
| 2013 | ECIR | Re-leashed! The PuppyIR Framework for Developing Information Services for Children, Adults and Dogs. | Douglas Dowie, Leif Azzopardi |
| 2013 | ECIR | Reducing the Uncertainty in Resource Selection. | Ilya Markov, Leif Azzopardi, Fabio Crestani |
| 2013 | ECIR | An Initial Investigation on the Relationship between Usage and Findability. | Colin Wilkie, Leif Azzopardi |
| 2013 | SIGIR | How query cost affects search behavior. | Leif Azzopardi, Diane Kelly, Kathy Brennan |
| 2013 | SIGIR | #trapped!: social media search system requirements for emergency management professionals. | Stefan Raue, Leif Azzopardi, Christopher W. Johnson |
| 2013 | SIGIR | Relating retrievability, performance and length. | Colin Wilkie, Leif Azzopardi |
| 2012 | ECIR | EmSe: Supporting Children's Information Needs within a Hospital Environment. | 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 |
| 2012 | ECIR | Crisees: Real-Time Monitoring of Social Media Streams to Support Crisis Management. | David Maxwell, Stefan Raue, Leif Azzopardi, Christopher W. Johnson, Sarah Oates |
| 2012 | ECIR | Detection of News Feeds Items Appropriate for Children. | Tamara Polajnar, Richard Glassey, Leif Azzopardi |
| 2012 | ECIR | Top-k Retrieval Using Facility Location Analysis. | Guido Zuccon, Leif Azzopardi, Dell Zhang, Jun Wang |
| 2012 | SIGIR | ALF: a client side logger and server for capturing user interactions in web applications. | Leif Azzopardi, Myles Doolan, Richard Glassey |
| 2012 | SIGIR | YooSee: a video browsing application for young children. | Leif Azzopardi, Douglas Dowie, Kelly Ann Marshall |
| 2012 | SIGIR | MaSe: create your own mash-up search interface. | Leif Azzopardi, Douglas Dowie, Kelly Ann Marshall, Richard Glassey |
| 2012 | SIGIR | PageFetch: a retrieval game for children (and adults). | Leif Azzopardi, James Purvis, Richard Glassey |
| 2011 | CIKM | Fu-Finder: a game for studying querying behaviours. | Carly O'Neil, James Purvis, Leif Azzopardi |
| 2011 | ECIR | Back to the Roots: Mean-Variance Analysis of Relevance Estimations. | Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen |
| 2011 | ICTIR | An Analysis of Ranking Principles and Retrieval Strategies. | Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen |
| 2011 | ICTIR | On the use of Complex Numbers in Quantum Models for Information Retrieval. | Guido Zuccon, Benjamin Piwowarski, Leif Azzopardi |
| 2011 | SIGIR | The economics in interactive information retrieval. | Leif Azzopardi |
| 2011 | SIGIR | JuSe: a picture dictionary query system for children. | Tamara Polajnar, Richard Glassey, Leif Azzopardi |
| 2011 | SIGIR | The interactive PRP for diversifying document rankings. | Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen |
| 2010 | CIKM | A comparison of user and system query performance predictions. | Claudia Hauff, Diane Kelly, Leif Azzopardi |
| 2010 | ECIR | Query Performance Prediction: Evaluation Contrasted with Effectiveness. | Claudia Hauff, Leif Azzopardi, Djoerd Hiemstra, Franciska de Jong |
| 2010 | ECIR | A Case for Automatic System Evaluation. | Claudia Hauff, Djoerd Hiemstra, Leif Azzopardi, Franciska de Jong |
| 2010 | ECIR | Using the Quantum Probability Ranking Principle to Rank Interdependent Documents. | Guido Zuccon, Leif Azzopardi |
| 2010 | SIGIR | On the relationship between effectiveness and accessibility. | Leif Azzopardi, Richard Bache |
| 2010 | SIGIR | Improving sentence retrieval with an importance prior. | Leif Azzopardi, Ronald T. Fernndez, David E. Losada |
| 2010 | SIGIR | Search system requirements of patent analysts. | Leif Azzopardi, Wim Vanderbauwhede, Hideo Joho |
| 2010 | SIGIR | Finding and filtering information for children. | Desmond Elliott, Richard Glassey, Tamara Polajnar, Leif Azzopardi |
| 2010 | SIGIR | Query quality: user ratings and system predictions. | Claudia Hauff, Franciska de Jong, Diane Kelly, Leif Azzopardi |
| 2010 | SIGIR | Estimating interference in the QPRP for subtopic retrieval. | Guido Zuccon, Leif Azzopardi, Claudia Hauff, Keith van Rijsbergen |
| 2010 | SIGIR | Has portfolio theory got any principles? | Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen |
| 2009 | CIKM | Usage based effectiveness measures: monitoring application performance in information retrieval. | Leif Azzopardi |
| 2009 | CIKM | Relying on topic subsets for system ranking estimation. | Claudia Hauff, Djoerd Hiemstra, Franciska de Jong, Leif Azzopardi |
| 2009 | ECIR | The Combination and Evaluation of Query Performance Prediction Methods. | Claudia Hauff, Leif Azzopardi, Djoerd Hiemstra |
| 2009 | FPL | FPGA-accelerated Information Retrieval: High-efficiency document filtering. | Wim Vanderbauwhede, Leif Azzopardi, Mahmoud Moadeli |
| 2009 | ICTIR | The Quantum Probability Ranking Principle for Information Retrieval. | Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen |
| 2009 | SIGIR | Query side evaluation: an empirical analysis of effectiveness and effort. | Leif Azzopardi |
| 2009 | SIGIR | Search engine predilection towards news media providers. | Leif Azzopardi, Ciaran Owens |
| 2009 | SIGIR | Developing energy efficient filtering systems. | Leif Azzopardi, Wim Vanderbauwhede, Mahmoud Moadeli |
| 2009 | SIGIR | When is query performance prediction effective? | Claudia Hauff, Leif Azzopardi |
| 2009 | SIGIR | Effective query expansion for federated search. | Milad Shokouhi, Leif Azzopardi, Paul Thomas |
| 2009 | SIGIR | Revisiting logical imaging for information retrieval. | Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen |
| 2008 | CIKM | Retrievability: an evaluation measure for higher order information access tasks. | Leif Azzopardi, Vishwa Vinay |
| 2008 | CIKM | Revisiting the relationship between document length and relevance. | David E. Losada, Leif Azzopardi, Mark Baillie |
| 2008 | ECIR | Accessibility in Information Retrieval. | Leif Azzopardi, Vishwa Vinay |
| 2008 | WWW | Resolving Person Names in Web People Search. | Krisztian Balog, Leif Azzopardi, Maarten de Rijke |
| 2007 | ECIR | A Retrieval Evaluation Methodology for Incomplete Relevance Assessments. | Mark Baillie, Leif Azzopardi, Ian Ruthven |
| 2007 | SIGIR | Building simulated queries for known-item topics: an analysis using six european languages. | Leif Azzopardi, Maarten de Rijke, Krisztian Balog |
| 2007 | SIGIR | Broad expertise retrieval in sparse data environments. | Krisztian Balog, Toine Bogers, Leif Azzopardi, Maarten de Rijke, Antal van den Bosch |
| 2007 | SIGIR | Intra-assessor consistency in question answering. | Ian Ruthven, Leif Azzopardi, Mark Baillie, Ralf Bierig, Emma Nicol, Simon O. Sweeney, Murat Yakici |
| 2007 | SIGIR | Updating collection representations for federated search. | Milad Shokouhi, Mark Baillie, Leif Azzopardi |
| 2006 | ECIR | An Efficient Computation of the Multiple-Bernoulli Language Model. | Leif Azzopardi, David E. Losada |
| 2006 | SAC | An evaluation of resource description quality measures. | Mark Baillie, Leif Azzopardi, Fabio Crestani |
| 2006 | SIGIR | Adaptive query-based sampling for distributed IR. | Leif Azzopardi, Mark Baillie, Fabio Crestani |
| 2006 | SIGIR | Automatic construction of known-item finding test beds. | Leif Azzopardi, Maarten de Rijke |
| 2006 | SIGIR | Formal models for expert finding in enterprise corpora. | Krisztian Balog, Leif Azzopardi, Maarten de Rijke |
| 2006 | SPIRE | Adaptive Query-Based Sampling of Distributed Collections. | Mark Baillie, Leif Azzopardi, Fabio Crestani |
| 2005 | ECIR | Age Dependent Document Priors in Link Structure Analysis. | Claudia Hauff, Leif Azzopardi |
| 2005 | SIGIR | Probabilistic hyperspace analogue to language. | Leif Azzopardi, Mark A. Girolami, Malcolm K. Crowe |
| 2004 | IJCNN | Topic based language models for ad hoc information retrieval. | Leif Azzopardi, Mark Girolami, C. J. van Rijsbergen |
| 2004 | SIGIR | User biased document language modelling. | Leif Azzopardi, Mark A. Girolami, Cornelis Joost van Rijsbergen |
| 2003 | SIGIR | Investigating the relationship between language model perplexity and IR precision-recall measures. | Leif Azzopardi, Mark A. Girolami, Keith van Rijsbergen |