Dr. Leif Azzopardi


Dr Leif Azzopardi I am a Researcher of Information Access and Retrieval and Senior Lecturer of Web Application Development in the School of Computing Science at the University of Glasgow. I graduated from the University of Newcastle with a Bachelors of Information Science with Honours before completing a PhD in Statistical Language Models for Information Retrieval at the University of Paisley / West of Scotland.

I work on:

  • modelling information access and retrieval problems to understand how and why people search for information,

  • how we can improve search systems,

  • and how such systems shape and influence our lives.

This brings in a wide range of research including theoretical research on the design and modelling of information access systems, empirical lab based research, simulation of user interaction and the development of suitable methods for evaluating information access and retrieval systems.

Currently, I am particularly interested in describing, predicting and explaining the interaction between users and systems with microeconomics. Often this requires large scale simulations of the interactions between users and systems and the mining of query and interactions logs to formulate statistical and functional relationships between interaction, performance and effort. Also, I am working towards relating how the cognitive load, physical effort and temporal costs affect the interaction of users and the performance that they achieve through search systems.

I have also led the design and development of the PuppyIR Open Source Framework. The framework enables the rapid development of information services for children (and adults) - see Prototypes for some example applications. TThe framework provides a host of wrappers to major search engines and search services along with a series of query and document filters/modifiers for processing information (which are combined using a pipe-and-filter architecture). It is written in Python and is downloadable from SourceForge.

To learn more about developing in Python Django, I host a free online book called How to Tango with Django at www.tangowithdjango.com. The site has recieved over 130,000 visitors since its release in October, 2013, with more than 60,000 regular visitors. The code to the book and the application that you create is available via my GitHub repository.

Publications


2014

Modeling Interaction with Economic Models of Search
Azzopardi, L.,Proceedings of the 37th International ACM SIGIR conference on Conference on Research and Development in Information Retrieval, 2014.
Full Paper Best Paper Honourable Mention Award

Best and Fairest: An Empirical Analysis of Retrieval System Bias
Wilkie, C., and Azzopardi, L., Proceedings of the BCS-IRSG 36th European Conference in Information Retrieval, 2014.Full Paper

Efficiently Estimating Retrievability Bias
Wilkie, C. and Azzopardi, L., Proceedings of the BCS-IRSG 35th European Conference in Information Retrieval, 2014. Poster Paper

Page Retrievability Calculator
Azzopardi, L., English, R., Wilkie, C. and Maxwell, D., Proceedings of the BCS-IRSG 35th European Conference in Information Retrieval, 2014.
Demo Poster Paper

PageFetch 2: gamification the sequel
Azzopardi, L., Bevc, M., Gardner, A., Maxwell, D., and Razzouk, A., Proceedings of the First International Workshop on Gamification for Information Retrieval, 2014.Full Paper

Studying User Browsing Behaviour through Gamified Search Tasks
He, J., Bron, M., Azzopardi, L., and de Vries, A., Proceedings of the First International Workshop on Gamification for Information Retrieval, 2014.
Full Paper

2013

Economic models of search
L AzzopardiProceedings of the 18th Australasian Document Computing Symposium, 2013.Keynote

How query cost affects search behavior
L., Azzopardi, D., Kelly, K., Brennan Proceedings of the 36th international ACM SIGIR conference on Conference on Research and Development in Information Retrieval,2013. Full Paper

Tango with Django: a beginners guide to web development with Django 1.5.4
L., Azzopardi, D., Maxwell, GitHub, 2013.Online Book

Towards measures and models of findability
L Azzopardi, C Wilkie, T Russell-Rose ACM SIGIR Workshop on Modelling User Behaviour for Evaluation, 2013.Full Paper

Relating retrievability, performance and length
C., Wilkie, L., Azzopardi Proceedings of the 36th international ACM SIGIR conference on Conference on Research and Development in Information Retrieval, 2013. Poster Paper

#trapped!: social media search system requirements for emergency management professionals
S., Raue, L., Azzopardi, C., W., Johnson Proceedings of the 36th international ACM SIGIR conference on Conference on Research and Development in Information Retrieval, 2013.Poster Paper

Crowdsourcing interactions: using crowdsourcing for evaluating interactive information retrieval systems
G., Zuccon, T., Leelanupab, S., Whiting, E., Yilmaz, J.,M., Jose, L., Azzopardi
Information retrieval, 2013.Journal Paper

Report on the Scottish informatics and computing science alliance's information retrieval workshop (IRFest)
M., Halvey, L., Azzopardi ACM SIGIR Forum, 2013.Workshop Report

Re-leashed! the PuppyIR framework for developing information services for children, adults and dogs
D., Dowie, L., Azzopardi, Proceedings of the BCS-IRSG 35th European Conference in Information Retrieval, 2013.Short Paper

An initial investigation on the relationship between usage and findability
C., Wilkie, L., Azzopardi, Proceedings of the BCS-IRSG 35th European Conference in Information Retrieval, 2013.Short Paper

Reducing the Uncertainty in Resource Selection
Markov, I., Azzopardi, L., and Crestani, F., Proceedings of the BCS-IRSG 35th European Conference in Information Retrieval, 2013.Full Paper

High throughput filtering using FPGA-acceleration
Vanderbauwhede, W., Frolov, A., Azzopardi, L., Chalamalasetti, S., R., and Margala, M., Proceedings of the 22nd ACM international conference on Conference on information & knowledge management, 2013.Short Paper

Re-Leashed! The PuppyIR framework for developing information services for children, adults and dogs
Dowie, D. and Azzopardi, L., Proceedings of the BCS-IRSG 35th European Conference in Information Retrieval, 2013.Demo Poster Paper

2012

Top-K Retrieval using Facilities Location Analysis
Guido Zuccon, Leif Azzopardi, Dell Zhang and Jun Wang Proceedings of the BCS-IRSG 34th European Conference in Information Retrieval, 2012.
Full Paper Best Paper Award

A Preliminary Study using PageFetch to Examine the Searching Abilities of Children and Adults
Jim Purvis and Leif Azzopardi IIiX '12: Proceeding of the 4th Information Interaction in Context Symposium, 2012. Short Paper

SCAMP: A Tool for Conducting Interactive Information Retrieval Experiments
Gareth Renaud and Leif Azzopardi IIiX '12: Proceeding of the 4th Information Interaction in Context Symposium, 2012. Short Paper

EmSe: Initial Evaluation of a Child-friendly Medical Search System
Carsten Eickhoff, Leif Azzopardi et al. IIiX '12: Proceeding of the 4th Information Interaction in Context Symposium, 2012. Short Paper

Practical Considerations when Filtering Documents
Desmond Elliott and Leif Azzopardi IIiX '12: Proceeding of the 4th Information Interaction in Context Symposium, 2012. Short Paper

YooSee: A Video Browsing Application for Young Children
Leif Azzopardi, Doug Dowie, Kelly Ann Marshall SIGIR '12: Proceeding of the 35th international ACM SIGIR conference on Research and development in information retrieval, 2012.Demo Poster Paper

ALF: A client side logger and server for capturing user interactions in web applications
Myles Doolan, Leif Azzopardi, Richard Glassey SIGIR '12: Proceeding of the 35th international ACM SIGIR conference on Research and development in information retrieval, 2012.Demo Poster Paper

PageFetch: a retrieval game for children (and adults)
Jim Purvis, Leif Azzopardi, Richard Glassey SIGIR '12: Proceeding of the 35th international ACM SIGIR conference on Research and development in information retrieval, 2012.Demo Poster Paper

MaSe: Create Your Own Mash-Up Search Interface
Leif Azzopardi, Doug Dowie, Richard Glassey, Kelly Ann Marshall SIGIR '12: Proceeding of the 35th international ACM SIGIR conference on Research and development in information retrieval, 2012.Demo Poster Paper

Detection of News Feeds Items Appropriate for Children
Tamara Polajnar, Richard Glassey and Leif Azzopardi Procceedings of the BCS-IRSG 34th European Conference in Information Retrieval, 2012. Full Paper

EmSe: Supporting Children's Information Finding Needs within a Hospital Environment
Leif Azzopardi et al, Procceedings of the BCS-IRSG 34th European Conference in Information Retrieval, 2012. Demo Poster Paper

Crisees: Real-Time Monitoring of Social Media Streams to Support Crisis Management
David Maxwell, Stefan Raue, Leif Azzopardi, Chris Johnson and Sarah Oates, Procceedings of the BCS-IRSG 34th European Conference in Information Retrieval, 2012. Demo Poster Paper

Using Active and Peer Feedback to Develop Professional Software Engineering Skills
Leif Azzopardi, Proceedings of the 5th Annual University of Glasgow Teaching and Learning Conference, 2012.
Abstract Oral Presentation


2011

Fu-Funder: A Game for Studying Querying Behaviors - Test your Search-Fu
Carly O'neil, James Purvis and Leif Azzopardi, Proceedings of the 20th ACM Conference on Information and Knowledge Management, 2011. Demo Short Paper

Finding Interest in Streams
Richard Glassey and Leif Azzopardi Proceedings of the 74 Annual Meeting of the American Society for Information Science and Technology, 2011. Poster Paper

On the use of Complex Numbers in Quantum Models for Information Retrieval
Guido Zuccon, Benjamin Piwowarski, Leif Azzopardi, ICTIR '11: Proceedings of the International Conference on Theory in Information Retrieval, 2011. Poster Paper

Crowdsourcing Interactions: Capturing query sessions through crowdsourcing
G. Zuccon, T. Leelanupab, S. Whiting, E. Yilmaz, J. M. Jose, and L. Azzopardi, ECIR Workshop on Information Retrieval over Session, SIR 2011. Full Paper

Crowdsourcing Interactions: A proposal for capturing user interactions through crowdsourcing
G. Zuccon, T. Leelanupab, S.Whiting, J. M. Jose, L. Azzopardi; Proceedings of CSDM 2011 (collocated with WSDM 2011).Full Paper

Towards a Living Lab for Information Retrieval Research and Development :A proposal for a living lab for product search tasks
Leif Azzopardi and Krisztian Balog, CLEF 2011: Conference on Multilingual and Multimodal Information Access Evaluation, September 2011. Full Paper

The Economics in Interactive Information Retrieval
Leif Azzopardi, SIGIR '11: Proceeding of the 34th international ACM SIGIR conference on Research and development in information retrieval, 2011. Full Paper

The Interactive PRP for Diversifying Document Rankings
Guido Zuccon, Leif Azzopardi, SIGIR '11: Proceeding of the 34th international ACM SIGIR conference on Research and development in information retrieval, 2011. Poster Paper

Enabling Picture-based Querying and Learning with the JuSe Interface
T. Polajnar, R. Glassey, K. Gyllstrom and L. Azzopardi Child Computer Interaction - 2nd Workshop on UI Technologies and Educational Pedagogy (@CHI2011)Short Paper

JuSe: A Picture Dictionary Query System for Children
Tamara Polajnar, Richard Glassey, Leif Azzopardi, SIGIR '11: Proceeding of the 34th international ACM SIGIR conference on Research and development in information retrieval, 2011. Demo Poster Paper

Search For Unlawful Carnal Knowledge
Leif Azzopardi, ACM SIGIR Entertain Me Workshop, 2011. Full Paper

Perq'ing up student writing
Leif Azzopard, The 4th Annual University of Glasgow Learning and Teaching Conference, Glasgow, 2011. Poster Paper

Peer Evaluation in Computing Science
Leif Azzopardi (with David Nicol and John Hamer) Peer Evaluation in Education Review (PEER) Project, Case Study

Back to the roots: mean-variance analysis of relevance estimations
Zuccon, G., Azzopardi, L., van Rijsbergen, K. ECIR'11: Proceedings of the 33rd European conference on Advances in information retrieval. Poster Paper

Investigating Subspace Distances in Semantic Spaces
G. Zuccon, L. Azzopardi, E. Gasco Proceedings of the Italian Information Retrieval Workshop, 2011.
Full Paper

Introduction to special issue on the second international conference on the theory of information retrieval
Leif Azzopardi, Dawei Song, Gabriella Kazai, Stephen Robertson, Stefan Rüger, Milad Shokouhi, Emine Yilmaz, Information Retrieval , Volume 14 Issue 1, 2011. Special Issue

Report on the SIGIR 2010 workshop on the simulation of interaction Leif Azzopardi, Kalervo Järvelin, Jaap Kamps, Mark D. Smucker SIGIR Forum , Volume 44 Issue 2, January 2011. Forum

PuppyIR Unleashed: A Framework for Building Child-Oriented Information Services R. Glassey, T. Polajnar and L. Azzopardi 11th Dutch-Belgian Information Retrieval Workshop (DIR), 2011 Short Paper


2010

A comparison of user and system query performance predictions
Claudia Hauff, Diane Kelly, Leif Azzopardi CIKM '10: Proceedings of the 19th ACM international conference on Information and knowledge management, 2010. Full Paper

A survey of patent users: an analysis of tasks, behavior, search functionality and system requirements
Hideo Joho, Leif A. Azzopardi, Wim Vanderbauwhede IIiX '10: Proceeding of the third symposium on Information interaction in context, 2010. Full Paper

Interaction-based information filtering for children
Richard Glassey, Desmond Elliott, Tamara Polajnar, Leif Azzopardi IIiX '10: Proceeding of the third symposium on Information interaction in context, 2010. Demo Short Paper

On the relationship between effectiveness and accessibility
Leif Azzopardi, Richard Bache SIGIR '10: Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010. Poster Paper

Improving sentence retrieval with an importance prior Leif Azzopardi, Ronald T. Fernández, David E. Losada SIGIR '10: Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010, Poster Paper

Has portfolio theory got any principles?
Guido Zuccon, Leif Azzopardi, C.J. "Keith" van Rijsbergen SIGIR '10: Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010. Poster Paper

Search system requirements of patent analysts
Leif Azzopardi, Wim Vanderbauwhede, Hideo Joho SIGIR '10: Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010. Poster Paper

Query quality: user ratings and system predictions
Claudia Hauff, Franciska de Jong, Diane Kelly, Leif Azzopardi SIGIR '10: Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval. Poster Paper

Finding and filtering information for children
Desmond Elliot, Richard Glassey, Tamara Polajnar, Leif Azzopardi SIGIR '10: Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010. Demo Poster Paper

Estimating interference in the QPRP for subtopic retrieval Guido Zuccon, Leif Azzopardi, Claudia Hauff, C.J. Keith van Rijsbergen SIGIR '10: Proceeding of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010. Poster Paper

Improving access to large patent corpora
Richard Bache, Leif Azzopardi Transactions on large-scale data- and knowledge-centered systems II, January 2010. Full Paper

How Quantum Theory is Developing the Field of Information Retrieval
D. Song, M. Lalmas, C.J. van Rijsbergen, I. Frommholz, B. Piwowarski, J. Wang, P. Zhang, G. Zuccon, P.D. Bruza S. Arafat, L. Azzopardi, E. Di Buccio, A. Huertas-Rosero, Y. Hou, M. Melucci, S. Rüger Proceedings of Quantum Interactions, 2010. Short Paper


2009

Usage Based Effectiveness Measures: Monitoring Application Performance in Information Retrieval
Azzopardi L. Proceedings of the ACM Conference on Information and Knowledge Management (CIKM 2009), 2009. Full Paper

Query Side Evaluation: An empirical study of effectiveness and effort
Azzopardi L. Proceedings of the 32th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2009), 2009. Full Paper

Search Engine Predilection towards News Media Providers
Azzopardi L. Owens C. Proceedings of the 32th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2009), 2009. Poster Paper

Developing Energy Efficient Filtering Systems
Azzopardi L. Vanderbauwhede W. Moadeli M. Proceedings of the 32th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2009), 2009. Poster Paper

Evaluating Personal Information Management Behaviour using Markov Models
Elsweiler D. Mandl S. Azzopardi L. Wissensmanagement, 2009. Full Paper

Relying on Topic Subsets for System Ranking Estimation
Hauff C. Hiemstra D. Azzopardi L. de Jong F. Proceedings of the ACM Conference on Information and Knowledge Management (CIKM 2009), 2009. Short Paper

When is Query Performance Prediction Effective?
Hauff C. Azzopardi L. Proceedings of the 32th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2009), 2009. Poster Paper

Query Performance Prediction
Hauff C. Azzopardi L. Hiemstra D. BCS-IRSG European Conference in Information Retrieval, 2009.
Full Paper

Eraser Lattices and Semantic Contents: An Exploration of the Semantic Contents in Order Relations between Erasers
Huertas-Rosero A.F. Azzopardi L. van Rijsbergen C.J. Quantum Interactions, 2009. Short Paper

Effective Query Expansion for Federated Information Retrieval
Shokouki M. Azzopardi L. Thomas P. Proceedings of the 32th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2009), 2009. Full Paper

FPGA-Accelerated Information Retrieval: High-Efficiency Document Filtering
Vanderbauwhede W. Azzopardi L. Moadeli M. Proceedings of the 19th International Conference on Field Programmable Logic and Applications (FPL2009), 2009. Full Paper

Semantic Spaces: Measuring the Distance between Subspaces
Zuccon G. Azzopardi L. van Rijsbergen C.J. Quantum Interactions, 2009. Short Paper

PuppyIR: Designing an Open Source Framework for Interactive Information Services for Children Azzopardi et al. The 3rd Annual Workshop on Human-Computer Interaction and Information Retrieval (HCIR 2009)Short Paper


2008

Retrievability: An Evaluation Measure for Higher Order Information Access Tasks
Azzopardi L. Vinay V. Proceedings of the ACM International Conference in Information and Knowledge Management (CIKM 2008), 2008. Full Paper

Accessibility in Information Retrieval
Azzopardi L. Vinay V. BCS-IRSG European Conference in Information Retrieval (ECIR 2008), 2008.
Short Paper

Document Accessibility: Evaluating the access afforded to a document by the retrieval system
Azzopardi L. Vinay V. Evaluation Workshop at the European Conference in Information Retrieval, 2008. Full Paper


Personal Name Resolution of Web People Search
Balog K. Azzopardi L. de Rijke M. WWW 2008 Workshop: NLP Challenges in the Information Explosion Era (NLPIX 2008), 2008. Full Paper

A Language Modeling Framework for Expert Search
Balog K. Azzopardi L. de Rijke M. Information Processing and Management, 2008. Full Paper

Towards Creating a Test Collection for European Patents
Graf E. Azzopardi L. Patent Retrieval Workshop (PaIR 2008), 2008. Full Paper

A Methodology for Building a Patent Test Collection for Prior Art Search
Graf E. Azzopardi L. The Second International Workshop on Evaluating Information Access (EVIA 2008), 2008. Full Paper

Characterising Through Erasing: A Theoretical Framework for Representing Documents Inspired by Quantum Theory
Huertas-Rosero A.F. Azzopardi L. van Rijsbergen C.J. Quantum Interactions, 2008. Short Paper

Collaborative Annotation for Pseudo Relevance Feedback
Lioma C. Moens M.F. Azzopardi L. Exploiting Semantic Annotations in Information Retrieval Workshop (ESAIR) at ECIR, 2008. Full Paper

Assessing Multi-variate Bernoulli models for Information Retrieval
Losada D. Azzopardi L. ACM Transactions of Information Systems, 2008. Full Paper

Revisiting the Relationship between Document Length and Relevance
Losada D. Azzopardi L. Baillie M. ACM International Conference on Information and Knowledge Management, 2008. Full Paper

An analysis on document length retrieval trends in language modeling smoothing
Losada D. Azzopardi L. Journal of Information Retrieval, 2008. Full Paper

A Formalization of Logical Imaging for Information Retrieval using Quantum Theory
Zuccon G. Azzopardi L. van Rijsbergen C.J. IEEE International Workshop on Text-based Information Retrieval, 2008. Full Paper


2007

Contextual factors affecting the utility of surrogates within exploratory search
Ruthven I. Baillie M. Azzopardi L. Bierig R. Nicol E. Sweeney S. Yakici M. Information Processing and Management: Special Issue on Evaluating Exploratory Search Systems, 2007. Full Paper

Intra-assessor consistency in question answering
Ruthven I. Azzopardi L. Baillie M. Bierig R. Nicol E. Sweeney S. Yakici M. Proceedings of the 30th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2007), 2007.

Broad Expertise Retrieval in Sparse Data Environments
Balog K. Bogers T. Azzopardi L. de Rijke M. van den Bosch A. Proceedings of the 30th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2007), 2007. Full Paper

Building Simulated Queries for Known-Item Topics: An Analysis using Six European Languages
Azzopardi L. de Rijke M. Balog K. Proceedings of the 30th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2007), 2007. Full Paper

Updating Collection Representations For Federated Search
Shokouhi M. Baillie M. Azzopardi L. Proceedings of the 30th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2007), 2007. Full Paper

Evaluating epistemic uncertainty under incomplete assessments
Baillie M. Azzopardi L. Ruthven I. Information Processing and Management, 2007. Full Paper

An Alternative Formulations of Relevance within the Language Modeling framework
Azzopardi L. Roelleke T. The proceedings of the 1st International Conference in Theory of Information Retrieval pp 125--134, 2007. Full Paper

Fairly Retrieving Documents of All Lengths
Azzopardi L. Losada D. The Proceedings of the 1st International Conference in Theory of Information Retrieval pp 65--76, 2007

Towards Evaluating the User Experience of Interactive Information Access Systems
Azzopardi L. Proceedings of the Web Information-Seeking and Interaction (WISI) Workshop at SIGIR 2007, 2007. Short Paper

A Retrieval Evaluation Methodology for Incomplete Relevance Assessments
Baillie M. Azzopardi L. Ruthven I. Proceedings of the 29th European Conference on Information Retrieval (ECIR 2007), 2007. Full Paper

Language Modeling Techniques for Web People Search
Balog K. Azzopardi L. de Rijke M. Proceedings of the 4th International Workshop on Semantic Evaluation (SemEval 2007), 2007. Full Paper


2006
Query Intention Acquisition: A Case Study on Automatically Inferring Structured Queries
Azzopardi L. de Rijke M. Proceedings of the Dutch Belgian Workshop in Information Retrieval (DIR 2006), 2006. Full Paper

An Evaluation of Resource Description Quality Measures
Baillie M. Azzopardi L. Crestani F. Proceedings of the ACM Symposium on Applied Computing (SAC 2006), 2006. Full Paper

The Efficient Computation of the Multiple Bernoulli Model
Azzopardi L. Losada D. Proceedings of the European Conference in Information Retrieval (ECIR 2006) pp 480-483, 2006. Poster Paper

Language Modeling Approaches for Enterprise Tasks
Azzopardi L. Balog K. de Rijke M. Proceedings of the 14th Text Retrieval Conference (TREC 2005), 2006. Full Paper

Combining Theasauri-based Methods for Biomedical Retrieval
Meij E. IJzereef L. Azzopardi L. Kamps J. de Rijke M. Proceedings of the 14th Text Retrieval Conference (TREC 2005), 2006. Full Paper

Towards better Measures: Evaluation of the Resource Description Quality for Distributed Information Retrieval
Baillie M. Azzopardi L. Crestani F. Proceedings of the 1st International Conference on Scalable Information Systems, 2006. Full Paper

Adaptive Query Based Sampling of Distributed Collections
Baillie M. Azzopardi L. Crestani F. Proceedings of the 13th Symposium on String Processing and Information Retrieval (SPIRE 2006), 2006. Full Paper

An Application Framework for Distributed Information Retrieval
Simeoni F. Azzopardi L. Crestani F. Proceedings of the 9th International Conference on Asian Digital Libraries (ICADL 2006), 2006. Full Paper

Formal Models for Expert Finding in Enterprise Corpora
Balog K. Azzopardi L. de Rijke M. Proceedings of the 29 Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2006), 2006. Full Paper

Adaptive Query Based Sampling of Distributed Information Retrieval
Azzopardi L. Baillie M. Crestani F. Proceedings of the 29 Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2006), 2006. Poster Paper

Automatic Construction of Known-Item Finding Test Beds
Azzopardi L. de Rijke M. Proceedings of the 29 Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2006), 2006. Poster Paper

ECIR Reviewing Workshop
Azzopardi L. MacFarlane A. Ounis I. Editors of the Proceedings of the ECIR Reviewing Workshop (ECIR-RW 2006), 2006. Report

Contextual information and assessor characteristics in complex question answering
Azzopardi C. Azzopardi L. Baillie M. Bierig R. Nicol E. Ruthven I. Sweeney S. Proceedings of the 15th TExt Retrieval Conference (TREC 2006), 2006. Full Paper


2005

Age Dependent Document Priors in Link Structure Analysis
Hauff C. Azzopardi L. Proceedings of the 27th European Conference on Information Retrieval (ECIR 2005) pp 552-554, 2005. Poster Paper

Incorporating Context within the Language Modeling Approach for ad hoc Information Retrieval
Azzopardi L. PhD Thesis University of Paisley, 2005. Thesis

Probabilistic Hyperspace Analogue to Language
Azzopardi L. Girolami M. Crowe M. Proceedings of the 28th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2005) pp 575-576, 2005. Poster Paper

2004 - 1999

Workshop on Evaluating User Studies in Information Access
Bailey A. Ruthven I. Azzopardi L. Proceedings of COLIS 2005, pp 251, 2004. Workshop

Topic Based Language Models for Ad Hoc Information Retrieval
Azzopardi L. Girolami M. van Rijsbergen C.J. Proceedings of the International Joint Conference in Neural Networks (IJCNN 2004), 2004. Full Paper

An investigation into the utility of the probabilistic interpretation of the Hyper space Analogue to Language (HAL)
Azzopardi L. Computing and Information Systems Technical Report 27 University of Paisley, 2004. Technical Report

The Proceedings of the Glasgow-Strathclyde Information Retrieval Workshop
Azzopardi L. Ruthven I. Crestani F. van Rijsbergen C.J. DCS Tech Report pp 38 Dept of Computing Science University of Glasgow, 2004. Proceedings

User Biased Document Language Modelling
Azzopardi L. Girolami M. van Rijsbergen C.J. Proceedings of the 27th Annual ACM Conference on Research and Development in Information Retrieval (SIGIR 2004) pp 542-544, 2004. Poster Paper

Investigating the Relationship between Language Model Perplexity and IR Precision-Recall Measures
Azzopardi L. Girolami M. van Rijsbergen C.J. Proceedings of the 26th ACM Conference on Research and Development in Information Retrieval (SIGIR 2003) pp 369-370, 2003. Poster Paper

Preprocessing Data in the Classification Process
Azzopardi L. Computer Science Departmental Journal Paisley University, 2003. Full Paper

Representational Heuristics
Azzopardi L. Aisbett J. Gibbon G. In the proceedings of the Australasian Mathematical Psychology Conference, 2001. Extended Abstract

Wave Motion
Azzopardi L. Proceedings of the Pan-Sydney Area Workshop on Visual Information Processing, 1999.
Full Paper




Biography

Dr. Leif Azzopardi is a Senior Lecturer within the Glasgow Information Retrieval Group and a full time academic member of staff within the School of Computing Science, at the University of Glasgow. He currently supervises several PhD, MSc and Honours Students on projects ranging from traditional formal models based research and applications of Information Retrieval to extreme models, methods and applications (such as those based on Quantum Theory or Transportation Planning). His latest research focus on using Microeconomic Theory to model the interaction between users and information retrieval systems.

Central to his research is the theoretical development of statistical language models for Information Retrieval, where his research interests include:

  • Models for the retrieval of documents, sentences, experts and other information objects
  • Probabilistic models of user interaction and the simulation of users for evaluation
  • Microeconomic models of information interaction, specifically how cognitive load and effort affect interaction and performance with search systems
  • Methods for text and data mining of large scale/big data collections
  • Methods which assess the impact of search technology on society in application areas such as, search engine bias and the accessibility of E-Government information
Previously, Dr Azzopardi was a Post Doctoral Researcher within iLab at the University of Strathclyde in 2006 under the direction of Prof. Fabio Crestani and Prof. Ian Ruthven, and ILPS at the University of Amsterdam in 2005 under the supervision of Prof. Maarten de Rijke. He received his Ph.D. in Computer Science from the University of Paisley in 2005, where he was supervised by Prof. Mark Girolami, Prof. Malcolm Crowe and Prof. Keith van Rijsbergen. Prior to this he received First Class Honours Degree in Information Science from the University of Newcastle, Australia, 2001. He was also the past Chair of the BCS Information Retrieval Specialist Group (2006-2008) and currently sits on the committee. He is a lifetime member of the ACM and a member of the BCS and IEEE.





Contact Information


Tango With Django

Check out our free online book on web application development in Python/Django

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Google Tech Talk

Check out my work on economics in IR:

Prototypes

See some of the cool projects my students have been working on.

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PuppyIR

Most of the demonstrators above have been created using the Open Source PuppyIR Framework for developing Interactive Information Retrieval Services for Children (and Adults) that I have been working on.

Visit PuppyIR »





SimInt 2010

Download the Proceedings from the Simulation of Interaction Workshop.

SimInt 2010 Proceedings »