Publications
Co-authors
Productive Colleagues
- Fabio Crestani
- Chris Johnson
- Maarten de Rijke
- 43
- 43
- 53
Publications
Losada, David E., Azzopardi, Leif (2008): Assessing multivariate Bernoulli models for information retrieval. In ACM Transactions on Information Systems, 26 (3) pp. 17. https://dl.acm.org/doi/10.1145/1361684.1361690
Azzopardi, Leif, Girolami, Mark, Risjbergen, Keith van (2003): Investigating the relationship between language model perplexity and IR precision-recall m. In: Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2003, . pp. 369-370. https://doi.acm.org/10.1145/860435.860505
Azzopardi, Leif, Girolami, Mark, Crowe, Malcolm (2005): Probabilistic hyperspace analogue to language. In: Proceedings of the 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2005, . pp. 575-576. https://doi.acm.org/10.1145/1076034.1076135
Balog, Krisztian, Azzopardi, Leif, Rijke, Maarten de (2006): Formal models for expert finding in enterprise corpora. In: Proceedings of the 29th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2006, . pp. 43-50. https://doi.acm.org/10.1145/1148170.1148181
Azzopardi, Leif, Rijke, Maarten de (2006): Automatic construction of known-item finding test beds. In: Proceedings of the 29th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2006, . pp. 603-604. https://doi.acm.org/10.1145/1148170.1148276
Azzopardi, Leif, Baillie, Mark, Crestani, Fabio (2006): Adaptive query-based sampling for distributed IR. In: Proceedings of the 29th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2006, . pp. 605-606. https://doi.acm.org/10.1145/1148170.1148277
Azzopardi, Leif, Rijke, Maarten de, Balog, Krisztian (2007): Building simulated queries for known-item topics: an analysis using six european languages. In: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2007, . pp. 455-462. https://doi.acm.org/10.1145/1277741.1277820
Shokouhi, Milad, Baillie, Mark, Azzopardi, Leif (2007): Updating collection representations for federated search. In: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2007, . pp. 511-518. https://doi.acm.org/10.1145/1277741.1277829
Balog, Krisztian, Bogers, Toine, Azzopardi, Leif, Rijke, Maarten de, Bosch, Antal van den (2007): Broad expertise retrieval in sparse data environments. In: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2007, . pp. 551-558. https://doi.acm.org/10.1145/1277741.1277836
Losada, David E., Azzopardi, Leif, Baillie, Mark (2008): Revisiting the relationship between document length and relevance. In: Shanahan, James G., Amer-Yahia, Sihem, Manolescu, Ioana, Zhang, Yi, Evans, David A., Kolcz, Aleksander, Choi, Key-Sun, Chowdhury, Abdur (eds.) Proceedings of the 17th ACM Conference on Information and Knowledge Management - CIKM 2008 October 26-30, 2008, Napa Valley, California, USA. pp. 419-428. https://doi.acm.org/10.1145/1458082.1458139
Azzopardi, Leif, Vinay, Vishwa (2008): Retrievability: an evaluation measure for higher order information access tasks. In: Shanahan, James G., Amer-Yahia, Sihem, Manolescu, Ioana, Zhang, Yi, Evans, David A., Kolcz, Aleksander, Choi, Key-Sun, Chowdhury, Abdur (eds.) Proceedings of the 17th ACM Conference on Information and Knowledge Management - CIKM 2008 October 26-30, 2008, Napa Valley, California, USA. pp. 561-570. https://doi.acm.org/10.1145/1458082.1458157
Elliot, Desmond, Glassey, Richard, Polajnar, Tamara, Azzopardi, Leif (2010): Finding and filtering information for children. In: Proceedings of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2010, . pp. 702. https://doi.acm.org/10.1145/1835449.1835569
Zuccon, Guido, Azzopardi, Leif, Hauff, Claudia, Rijsbergen, C. J. Keith van (2010): Estimating interference in the QPRP for subtopic retrieval. In: Proceedings of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2010, . pp. 741-742. https://doi.acm.org/10.1145/1835449.1835593
Hauff, Claudia, Jong, Franciska de, Kelly, Diane, Azzopardi, Leif (2010): Query quality: user ratings and system predictions. In: Proceedings of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2010, . pp. 743-744. https://doi.acm.org/10.1145/1835449.1835594
Zuccon, Guido, Azzopardi, Leif, Rijsbergen, C. J. Keith van (2010): Has portfolio theory got any principles?. In: Proceedings of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2010, . pp. 755-756. https://doi.acm.org/10.1145/1835449.1835600
Azzopardi, Leif, Vanderbauwhede, Wim, Joho, Hideo (2010): Search system requirements of patent analysts. In: Proceedings of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2010, . pp. 775-776. https://doi.acm.org/10.1145/1835449.1835610
Azzopardi, Leif, Fernández, Ronald T., Losada, David E. (2010): Improving sentence retrieval with an importance prior. In: Proceedings of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2010, . pp. 779-780. https://doi.acm.org/10.1145/1835449.1835612
Azzopardi, Leif, Bache, Richard (2010): On the relationship between effectiveness and accessibility. In: Proceedings of the 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2010, . pp. 889-890. https://doi.acm.org/10.1145/1835449.1835667
Shokouhi, Milad, Azzopardi, Leif, Thomas, Paul (2009): Effective query expansion for federated search. In: Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2009, . pp. 427-434. https://doi.acm.org/10.1145/1571941.1572015
Azzopardi, Leif (2009): Query side evaluation: an empirical analysis of effectiveness and effort. In: Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2009, . pp. 556-563. https://doi.acm.org/10.1145/1571941.1572037
Azzopardi, Leif, Vanderbauwhede, Wim, Moadeli, Mahmoud (2009): Developing energy efficient filtering systems. In: Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2009, . pp. 664-665. https://doi.acm.org/10.1145/1571941.1572067
Zuccon, Guido, Azzopardi, Leif, Rijsbergen, Cornelis J. van (2009): Revisiting logical imaging for information retrieval. In: Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2009, . pp. 766-767. https://doi.acm.org/10.1145/1571941.1572118
Azzopardi, Leif, Owens, Ciaran (2009): Search engine predilection towards news media providers. In: Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2009, . pp. 774-775. https://doi.acm.org/10.1145/1571941.1572122
Hauff, Claudia, Azzopardi, Leif (2009): When is query performance prediction effective?. In: Proceedings of the 32nd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2009, . pp. 829-830. https://doi.acm.org/10.1145/1571941.1572150
Azzopardi, Leif, Losada, David E. (2006): An Efficient Computation of the Multiple-Bernoulli Language Model. In: Lalmas, Mounia, MacFarlane, Andy, Rüger, Stefan M., Tombros, Anastasios, Tsikrika, Theodora, Yavlinsky, Alexei (eds.) Advances in Information Retrieval - 28th European Conference on IR Research - ECIR 2006 April 10-12, 2006, London, UK. pp. 480-483. https://dx.doi.org/10.1007/11735106_46
Hauff, Claudia, Azzopardi, Leif (2005): Age Dependent Document Priors in Link Structure Analysis. In: Losada, David E., Fernández-Luna, Juan M. (eds.) Advances in Information Retrieval - 27th European Conference on IR Research - ECIR 2005 March 21-23, 2005, Santiago de Compostela, Spain. pp. 552-554. https://link.springer.de/link/service/series/0558/bibs/3408/34080552.htm
Baillie, Mark, Azzopardi, Leif, Ruthven, Ian (2007): A Retrieval Evaluation Methodology for Incomplete Relevance Assessments. In: Amati, Giambattista, Carpineto, Claudio, Romano, Giovanni (eds.) Advances in Information Retrieva - 29th European Conference on IR Research - ECIR 2007 April 2-5, 2007, Rome, Italy. pp. 271-282. https://dx.doi.org/10.1007/978-3-540-71496-5_26
Azzopardi, Leif, Vinay, Vishwa (2008): Accessibility in Information Retrieval. In: Macdonald, Craig, Ounis, Iadh, Plachouras, Vassilis, Ruthven, Ian, White, Ryen W. (eds.) Advances in Information Retrieval - 30th European Conference on IR Research - ECIR 2008 March 30-April 3, 2008, Glasgow, UK. pp. 482-489. https://dx.doi.org/10.1007/978-3-540-78646-7_46
Hauff, Claudia, Azzopardi, Leif, Hiemstra, Djoerd (2009): The Combination and Evaluation of Query Performance Prediction Methods. In: Boughanem, Mohand, Berrut, Catherine, Mothe, Josiane, Soulé-Dupuy, Chantal (eds.) Advances in Information Retrieval - 31th European Conference on IR Research - ECIR 2009 April 6-9, 2009, 2009, Toulouse, France. pp. 301-312. https://dx.doi.org/10.1007/978-3-642-00958-7_28
Zuccon, Guido, Azzopardi, Leif (2010): Using the Quantum Probability Ranking Principle to Rank Interdependent Documents. In: Gurrin, Cathal, He, Yulan, Kazai, Gabriella, Kruschwitz, Udo, Little, Suzanne, Roelleke, Thomas, Rüger, Stefan M., Rijsbergen, Keith van (eds.) Advances in Information Retrieval - 32nd European Conference on IR Research - ECIR 2010 March 28-31, 2010, Milton Keynes, UK. pp. 357-369. https://dx.doi.org/10.1007/978-3-642-12275-0_32
Hauff, Claudia, Azzopardi, Leif, Hiemstra, Djoerd, Jong, Franciska de (2010): Query Performance Prediction: Evaluation Contrasted with Effectiveness. In: Gurrin, Cathal, He, Yulan, Kazai, Gabriella, Kruschwitz, Udo, Little, Suzanne, Roelleke, Thomas, Rüger, Stefan M., Rijsbergen, Keith van (eds.) Advances in Information Retrieval - 32nd European Conference on IR Research - ECIR 2010 March 28-31, 2010, Milton Keynes, UK. pp. 204-216. https://dx.doi.org/10.1007/978-3-642-12275-0_20
Hauff, Claudia, Hiemstra, Djoerd, Azzopardi, Leif, Jong, Franciska de (2010): A Case for Automatic System Evaluation. In: Gurrin, Cathal, He, Yulan, Kazai, Gabriella, Kruschwitz, Udo, Little, Suzanne, Roelleke, Thomas, Rüger, Stefan M., Rijsbergen, Keith van (eds.) Advances in Information Retrieval - 32nd European Conference on IR Research - ECIR 2010 March 28-31, 2010, Milton Keynes, UK. pp. 153-165. https://dx.doi.org/10.1007/978-3-642-12275-0_16
Azzopardi, Leif (2011): The economics in interactive information retrieval. In: Proceedings of the 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2011, . pp. 15-24. https://dx.doi.org/10.1145/2009916.2009923
Zuccon, Guido, Azzopardi, Leif, J., C. (2011): The interactive PRP for diversifying document rankings. In: Proceedings of the 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2011, . pp. 1227-1228. https://dx.doi.org/10.1145/2009916.2010132
Polajnar, Tamara, Glassey, Richard, Azzopardi, Leif (2011): JuSe: a picture dictionary query system for children. In: Proceedings of the 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2011, . pp. 1281-1282. https://dx.doi.org/10.1145/2009916.2010160
Scott-Brown, Kenneth C., Pol, Marjon van der, Moncrieffe, Claire, Allan, Julia, Crook, Paul, McAvoy, Donna, Azzopardi, Leif, Bamford, Mark, Reynolds, Ian (2012): Service-please: an interactive healthy eating serious game application for tablet computer. In: Proceedings of the HCI12 Conference on People and Computers XXVI , 2012, . pp. 381-385. https://dl.acm.org/citation.cfm?id=2377970
Polajnar, Tamara, Glassey, Richard, Azzopardi, Leif (2012): Detection of news feeds items appropriate for children. In: Proceedings of the 2012 BCS-IRSG European Conference on Information Retrieval , 2012, . pp. 63-72. https://dx.doi.org/10.1007/978-3-642-28997-2_6
Zuccon, Guido, Azzopardi, Leif, Zhang, Dell, Wang, Jun (2012): Top-k retrieval using facility location analysis. In: Proceedings of the 2012 BCS-IRSG European Conference on Information Retrieval , 2012, . pp. 305-316. https://dx.doi.org/10.1007/978-3-642-28997-2_26
Maxwell, David, Raue, Stefan, Azzopardi, Leif, Johnson, Chris, Oates, Sarah (2012): Crisees: real-time monitoring of social media streams to support crisis management. In: Proceedings of the 2012 BCS-IRSG European Conference on Information Retrieval , 2012, . pp. 573-575. https://dx.doi.org/10.1007/978-3-642-28997-2_68
Azzopardi, Leif, Dowie, Doug, Duarte, Sergio, Eickhoff, Carsten, Glassey, Richard, Gyllstrom, Karl, Hiemstra, Djoerd, Jong, Franciska de, Kruisinga, Frea, Marshall, Kelly, Moens, Sien, Polajnar, Tamara, Sluis, Frans van der, Vries, Arjen de (2012): EmSe: supporting children's information needs within a hospital environment. In: Proceedings of the 2012 BCS-IRSG European Conference on Information Retrieval , 2012, . pp. 578-580. https://dx.doi.org/10.1007/978-3-642-28997-2_70
Azzopardi, Leif, Doolan, Myles, Glassey, Richard (2012): ALF: a client side logger and server for capturing user interactions in web applications. In: Proceedings of the 35th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2012, . pp. 1003. https://dx.doi.org/10.1145/2348283.2348428
Azzopardi, Leif, Dowie, Douglas, Marshall, Kelly Ann, Glassey, Richard (2012): MaSe: create your own mash-up search interface. In: Proceedings of the 35th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2012, . pp. 1008. https://dx.doi.org/10.1145/2348283.2348433
Azzopardi, Leif, Purvis, Jim, Glassey, Richard (2012): PageFetch: a retrieval game for children (and adults). In: Proceedings of the 35th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2012, . pp. 1010. https://dx.doi.org/10.1145/2348283.2348435
Azzopardi, Leif, Dowie, Douglas, Marshall, Kelly Ann (2012): YooSee: a video browsing application for young children. In: Proceedings of the 35th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval , 2012, . pp. 1017. https://dx.doi.org/10.1145/2348283.2348442