Leif Azzopardi

	2009
49		Leif Azzopardi, Gabriella Kazai, Stephen E. Robertson, Stefan M. Rüger, Milad Shokouhi, Dawei Song, Emine Yilmaz: Advances in Information Retrieval Theory, Second International Conference on the Theory of Information Retrieval, ICTIR 2009, Cambridge, UK, September 10-12, 2009, Proceedings Springer 2009
48		Claudia Hauff, Djoerd Hiemstra, Franciska de Jong, Leif Azzopardi: Relying on topic subsets for system ranking estimation. CIKM 2009: 1859-1862
47		Leif Azzopardi: Usage based effectiveness measures: monitoring application performance in information retrieval. CIKM 2009: 631-640
46		Claudia Hauff, Leif Azzopardi, Djoerd Hiemstra: The Combination and Evaluation of Query Performance Prediction Methods. ECIR 2009: 301-312
45		Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen: The Quantum Probability Ranking Principle for Information Retrieval. ICTIR 2009: 232-240
44		Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen: Semantic Spaces: Measuring the Distance between Different Subspaces. QI 2009: 225-236
43		Alvaro Francisco Huertas-Rosero, Leif Azzopardi, C. J. van Rijsbergen: Eraser Lattices and Semantic Contents. QI 2009: 266-275
42		Milad Shokouhi, Leif Azzopardi, Paul Thomas: Effective query expansion for federated search. SIGIR 2009: 427-434
41		Leif Azzopardi: Query side evaluation: an empirical analysis of effectiveness and effort. SIGIR 2009: 556-563
40		Leif Azzopardi, Wim Vanderbauwhede, Mahmoud Moadeli: Developing energy efficient filtering systems. SIGIR 2009: 664-665
39		Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen: Revisiting logical imaging for information retrieval. SIGIR 2009: 766-767
38		Leif Azzopardi, Ciaran Owens: Search engine predilection towards news media providers. SIGIR 2009: 774-775
37		Claudia Hauff, Leif Azzopardi: When is query performance prediction effective? SIGIR 2009: 829-830
36		David Elsweiler, Stefan Mandl, Leif Azzopardi: Evaluating Personal Information Management Behaviour using Markov Models. Wissensmanagement 2009: 280-288
35		Krisztian Balog, Leif Azzopardi, Maarten de Rijke: A language modeling framework for expert finding. Inf. Process. Manage. 45(1): 1-19 (2009)
	2008
34		David E. Losada, Leif Azzopardi, Mark Baillie: Revisiting the relationship between document length and relevance. CIKM 2008: 419-428
33		Leif Azzopardi, Vishwa Vinay: Retrievability: an evaluation measure for higher order information access tasks. CIKM 2008: 561-570
32		Guido Zuccon, Leif Azzopardi, C. J. van Rijsbergen: A Formalization of Logical Imaging for Information Retrieval Using Quantum Theory. DEXA Workshops 2008: 3-8
31		Leif Azzopardi, Vishwa Vinay: Accessibility in Information Retrieval. ECIR 2008: 482-489
30		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
29		David E. Losada, Leif Azzopardi: Assessing multivariate Bernoulli models for information retrieval. ACM Trans. Inf. Syst. 26(3): (2008)
28		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)
27		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)
26		Mark Baillie, Leif Azzopardi, Ian Ruthven: Evaluating epistemic uncertainty under incomplete assessments. Inf. Process. Manage. 44(2): 811-837 (2008)
25		David E. Losada, Leif Azzopardi: An analysis on document length retrieval trends in language modeling smoothing. Inf. Retr. 11(2): 109-138 (2008)
	2007
24		Mark Baillie, Leif Azzopardi, Ian Ruthven: A Retrieval Evaluation Methodology for Incomplete Relevance Assessments. ECIR 2007: 271-282
23		Leif Azzopardi, Maarten de Rijke, Krisztian Balog: Building simulated queries for known-item topics: an analysis using six european languages. SIGIR 2007: 455-462
22		Milad Shokouhi, Mark Baillie, Leif Azzopardi: Updating collection representations for federated search. SIGIR 2007: 511-518
21		Krisztian Balog, Toine Bogers, Leif Azzopardi, Maarten de Rijke, Antal van den Bosch: Broad expertise retrieval in sparse data environments. SIGIR 2007: 551-558
20		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
19		Leif Azzopardi, Mark Baillie, Ian Ruthven: Persuasive, Authorative and Topical Answers for Complex Question Answering. TREC 2007
	2006
18		Krisztian Balog, Leif Azzopardi, Jaap Kamps, Maarten de Rijke: Overview of WebCLEF 2006. CLEF 2006: 803-819
17		Leif Azzopardi, David E. Losada: An Efficient Computation of the Multiple-Bernoulli Language Model. ECIR 2006: 480-483
16		Fabio Simeoni, Leif Azzopardi, Fabio Crestani: An Application Framework for Distributed Information Retrieval. ICADL 2006: 192-201
15		Mark Baillie, Leif Azzopardi, Fabio Crestani: Towards better measures: evaluation of estimated resource description quality for distributed IR. Infoscale 2006: 41
14		Mark Baillie, Leif Azzopardi, Fabio Crestani: An evaluation of resource description quality measures. SAC 2006: 1110-1111
13		Krisztian Balog, Leif Azzopardi, Maarten de Rijke: Formal models for expert finding in enterprise corpora. SIGIR 2006: 43-50
12		Leif Azzopardi, Maarten de Rijke: Automatic construction of known-item finding test beds. SIGIR 2006: 603-604
11		Leif Azzopardi, Mark Baillie, Fabio Crestani: Adaptive query-based sampling for distributed IR. SIGIR 2006: 605-606
10		Mark Baillie, Leif Azzopardi, Fabio Crestani: Adaptive Query-Based Sampling of Distributed Collections. SPIRE 2006: 316-328
9		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
8		Leif Azzopardi: Incorporating context within the language modeling approach for ad hoc information retrieval. SIGIR Forum 40(1): 70 (2006)
	2005
7		Alex Bailey, Ian Ruthven, Leif Azzopardi: Evaluating User Studies in Information Access. CoLIS 2005: 251-251
6		Claudia Hauff, Leif Azzopardi: Age Dependent Document Priors in Link Structure Analysis. ECIR 2005: 552-554
5		Leif Azzopardi, Mark Girolami, Malcolm Crowe: Probabilistic hyperspace analogue to language. SIGIR 2005: 575-576
4		Edgar Meij, Leonie IJzereef, Leif Azzopardi, Jaap Kamps, Maarten de Rijke: Combining Thesauri-Based Methods for Biomedical Retrieval. TREC 2005
3		Leif Azzopardi, Krisztian Balog, Maarten de Rijke: Language Modeling Approaches for Enterprise Tasks. TREC 2005
	2004
2		Leif Azzopardi, Mark Girolami, Cornelis Joost van Rijsbergen: User biased document language modelling. SIGIR 2004: 542-543
	2003
1		Leif Azzopardi, Mark Girolami, Keith van Rijsbergen: Investigating the relationship between language model perplexity and IR precision-recall measures. SIGIR 2003: 369-370

Coauthor Index

1	Cindy Azzopardi	[9]
2	Alex Bailey	[7]
3	Mark Baillie	[9] [10] [11] [14] [15] [19] [20] [22] [24] [26] [27] [34]
4	Krisztian Balog	[3] [13] [18] [21] [23] [30] [35]
5	Ralf Bierig	[9] [20] [27]
6	Toine Bogers	[21]
7	Antal van den Bosch	[21]
8	Fabio Crestani	[10] [11] [14] [15] [16]
9	Malcolm Crowe	[5]
10	David Elsweiler	[36]
11	Mark A. Girolami (Mark Girolami)	[1] [2] [5]
12	Claudia Hauff	[6] [37] [46] [48]
13	Djoerd Hiemstra	[46] [48]
14	Alvaro Francisco Huertas-Rosero	[28] [43]
15	Leonie IJzereef	[4]
16	Franciska de Jong (Franciska M. G. de Jong)	[48]
17	Jaap Kamps	[4] [18]
18	Gabriella Kazai	[49]
19	David E. Losada	[17] [25] [29] [34]
20	Stefan Mandl	[36]
21	Edgar Meij	[4]
22	Mahmoud Moadeli	[40]
23	Emma Nicol	[9] [20] [27]
24	Ciaran Owens	[38]
25	Maarten de Rijke	[3] [4] [12] [13] [18] [21] [23] [30] [35]
26	C. J. van Rijsbergen (Cornelis Joost van Rijsbergen, Keith van Rijsbergen)	[1] [2] [28] [32] [39] [43] [44] [45]
27	Stephen E. Robertson (Stephen Robertson)	[49]
28	Stefan M. Rüger	[49]
29	Ian Ruthven	[7] [9] [19] [20] [24] [26] [27]
30	Milad Shokouhi	[22] [42] [49]
31	Fabio Simeoni	[16]
32	Dawei Song	[49]
33	Scott Sweeney	[9]
34	Simon O. Sweeney	[20] [27]
35	Paul Thomas	[42]
36	Wim Vanderbauwhede	[40]
37	Vishwa Vinay	[31] [33]
38	Murat Yaciki	[27]
39	Murat Yakici	[20]
40	Emine Yilmaz	[49]
41	Guido Zuccon	[32] [39] [44] [45]

Colors in the list of coauthors