2026 Leif Azzopardi: Computer Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Computer Science	40	9317	9047	578	570	275	6680

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Computer Science

9317

9047

578

570

275

6680

Overview

Leif Azzopardi is affiliated with the University of Strathclyde in the United Kingdom and has a significant publication record primarily in the field of Computer Science. Their work spans several subfields, including Artificial Intelligence, Information Systems, Sociology and Political Science, Social Psychology, and Management Science and Operations Research.

The scientist's research covers a diverse range of topics, with notable focus areas being:

Information Retrieval and Search Behavior
Topic Modeling
Human-Automation Interaction and Safety
Expert Finding and Q&A Systems
Privacy, Security, and Data Protection
Advanced Text Analysis Techniques
Data Quality and Management

Leif Azzopardi has published in multiple venues, with frequent appearances in:

arXiv (Cornell University)
ACM SIGIR Forum
Proceedings of the Human Factors and Ergonomics Society Annual Meeting
Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval
Frontiers in Robotics and AI

Among recent papers authored or co-authored by Azzopardi are:

Report on the Search Futures Workshop at ECIR 2024 (2024), ACM SIGIR Forum
A Flexible Framework for Offline Effectiveness Metrics (2022), Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval
Inferring Trust From Users' Behaviours; Agents' Predictability Positively Affects Trust, Task Performance and Cognitive Load in Human-Agent Real-Time Collaboration (2021), Frontiers in Robotics and AI
Revealing Cumulative Risks in Online Personal Information: A Data Narrative Study (2022), Proceedings of the ACM on Human-Computer Interaction
A Systematic Review of Cost, Effort, and Load Research in Information Search and Retrieval, 1972-2020 (2023), ACM Transactions on Information Systems

Leif Azzopardi frequently collaborates with other researchers, with the most common coauthors being:

Martin Halvey
Mohammad Aliannejadi
Amal Htait
Suzan Verberne
Emma Nicol

Best Publications

Formal models for expert finding in enterprise corpora

Krisztian Balog;Leif Azzopardi;Maarten de Rijke

832
Citations
A language modeling framework for expert finding

Krisztian Balog;Leif Azzopardi;Maarten de Rijke

302
Citations
Investigating the relationship between language model perplexity and IR precision-recall measures

Leif Azzopardi;Mark Girolami;Keith van Risjbergen

188
Citations
Broad expertise retrieval in sparse data environments

Krisztian Balog;Toine Bogers;Leif Azzopardi;Maarten de Rijke

181
Citations
Building simulated queries for known-item topics: an analysis using six european languages

Leif Azzopardi;Maarten de Rijke;Krisztian Balog

166
Citations
Integrating and evaluating neural word embeddings in information retrieval

Guido Zuccon;Bevan Koopman;Peter Bruza;Leif Azzopardi

159
Citations
Cognitive Biases in Search: A Review and Reflection of Cognitive Biases in Information Retrieval

Leif Azzopardi

158
Citations
Retrievability: an evaluation measure for higher order information access tasks

Leif Azzopardi;Vishwa Vinay

156
Citations
The economics in interactive information retrieval

Leif Azzopardi

135
Citations
Modelling interaction with economic models of search

Leif Azzopardi

121
Citations
Using the quantum probability ranking principle to rank interdependent documents

Guido Zuccon;Leif Azzopardi

118
Citations
Advances in Information Retrieval Theory

Leif Azzopardi;Gabriella Kazai;Stephen Robertson;Stefan Rüger

108
Citations
How query cost affects search behavior

Leif Azzopardi;Diane Kelly;Kathy Brennan

104
Citations
Information retrieval in the workplace: A comparison of professional search practices

Tony Russell-Rose;Jon Chamberlain;Leif Azzopardi

92
Citations
CLEF 2018 technologically assisted reviews in empirical medicine overview

Evangelos Kanoulas;Dan Li;Leif Azzopardi;Rene Spijker

88
Citations
How many results per page?: A Study of SERP Size, Search Behavior and User Experience

Diane Kelly;Leif Azzopardi

88
Citations
Report on the SIGIR 2010 workshop on the simulation of interaction

Leif Azzopardi;Kalervo Järvelin;Jaap Kamps;Mark D. Smucker

87
Citations
The Quantum Probability Ranking Principle for Information Retrieval

Guido Zuccon;Leif A. Azzopardi;Keith van Rijsbergen

85
Citations
A survey of patent users: an analysis of tasks, behavior, search functionality and system requirements

Hideo Joho;Leif A. Azzopardi;Wim Vanderbauwhede

84
Citations
Topic based language models for ad hoc information retrieval

L. Azzopardi;M. Girolami;C.J. van Rijsbergen

84
Citations

Frequent Co-Authors

Krisztian Balog University of Stavanger

Maarten de Rijke University of Amsterdam

Evangelos Kanoulas University of Amsterdam

Djoerd Hiemstra Radboud University

Diane Kelly University of Tennessee at Knoxville

Dawei Song The Open University

Ian Ruthven University of Strathclyde

Fabio Crestani Universita della Svizzera Italiana

C. J. van Rijsbergen University of Glasgow

Jaap Kamps University of Amsterdam

External Links

Personal website of Leif Azzopardi Google Scholar page

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