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Dr

Joel Mackenzie

Research Fellow In Web Search Technologies
Query Processing
Data Representation and Compression
technology
science & technology
computer science
computer science, information systems
efficiency
computer science, theory & methods
Joel Mackenzie's Profile Picture
Dr

Joel Mackenzie

 
Division
Engineering
 
Primary Interest
Information Retrieval
Joel Mackenzie's Profile Picture
Dr

Joel Mackenzie

 

Joel Mackenzie is currently a postdoctoral research fellow at the University of Melbourne, working with Professor Alistair Moffat on techniques for building efficient and scalable representations of large text collections.Joel completed his PhD at RMIT University in 2019 under the guidance of Associate Professor J. Shane Culpepper and Professor Falk Scholer, where he examined how to manage high percentile tail latency in large-scale search engines.Joel's current research interests include indexing and compression, efficient query processing, large-scale search systems, user behaviour analysis, reproducibility, and evaluation. Joel also has a broad interest in data structures and algorithms.

Scholarly Works

Displaying the 17 most recent scholarly works by Joel Mackenzie.

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Boosting search performance using query variations

R Benham, Joel Mackenzie, A Moffat, JS Culpepper

Journal article  |  2019  |  ACM Transactions on Information Systems

Rank fusion is a powerful technique that allows multiple sources of information to be combined into a single result set. Query var..

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Accelerated query processing via similarity score prediction

M Petri, A Moffat, J Mackenzie, J Shane Culpepper, D Beck

Conference Proceedings  |  2019  |  Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval

Publication rights licensed to ACM. Processing top-k bag-of-words queries is critical to many information retrieval applications, ..

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Compressing inverted indexes with recursive graph bisection: A reproducibility study

J Mackenzie, A Mallia, M Petri, JS Culpepper, T Suel

Conference Proceedings  |  2019  |  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

© Springer Nature Switzerland AG 2019. Document reordering is an important but often overlooked preprocessing stage in index const..

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Exploring User Behavior in Email Re-Finding Tasks

Joel Mackenzie, Kshitiz Gupta, Fang Qiao, Ahmed Hassan Awadallah, Milad Shokouhi

Conference Proceedings  |  2019  |  The World Wide Web Conference on - WWW '19

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PISA: Performant Indexes and Search for Academia

A Mallia, M Siedlaczek, J Mackenzie, T Suel

Conference Proceedings  |  2019  |  CEUR Workshop Proceedings

Performant Indexes and Search for Academia (PISA) is an experimental search engine that focuses on efficient implementations of st..

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Towards efficient and effective query variant generation

R Benham, JS Culpepper, L Gallagher, X Lu, J Mackenzie

Conference Proceedings  |  2018  |  Proc. Conf. on Design of Experimental Search & Information Retrieval Systems (DESIRES)

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Revisiting Spam Filtering in Web Search

Luke Gallagher, Joel Mackenzie, J Shane Culpepper

Conference Proceedings  |  2018  |  Proceedings of the 23rd Australasian Document Computing Symposium on ZZZ - ADCS '18

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On the Cost of Negation for Dynamic Pruning

Joel Mackenzie, Craig Macdonald, Falk Scholer, J Shane Culpepper

Conference Proceedings  |  2018  |  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

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Query Driven Algorithm Selection in Early Stage Retrieval

Joel Mackenzie, J Shane Culpepper, Roi Blanco, Matt Crane, Charles LA Clarke, Jimmy Lin

Conference Proceedings  |  2018  |  Proceedings of the Eleventh ACM International Conference on Web Search and Data Mining - WSDM '18

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RMIT at the 2018 TREC CORE track

R Benham, L Gallagher, J Mackenzie, B Liu, X Lu, F Scholer, A Moffat, JS Culpepper

Conference Proceedings  |  2018  |  Proc. Text Retrieval Conf. (TREC)

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Early termination heuristics for score-at-a-time index traversal

J Mackenzie, F Scholer, JS Culpepper

Conference Proceedings  |  2017  |  Proceedings of the 22nd Australasian Document Computing Symposium on - ADCS 2017

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A Comparison of Document-at-a-Time and Score-at-a-Time Query Evaluation

Matt Crane, J Shane Culpepper, Jimmy Lin, Joel Mackenzie, Andrew Trotman

Conference Proceedings  |  2017  |  Proceedings of the Tenth ACM International Conference on Web Search and Data Mining - WSDM '17

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Managing Tail Latencies in Large Scale IR Systems

Joel Mackenzie

Conference Proceedings  |  2017  |  Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval

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RMIT at the NTCIR-13 We Want Web task

L Gallagher, J Mackenzie, R Benham, R-C Chen, F Scholer, JS Culpepper

Conference Proceedings  |  2017  |  Proc. NII Testbeds and Community for Information Access Research (NTCIR)

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RMIT at the 2017 TREC CORE track

R Benham, L Gallagher, J Mackenzie, TT Damessie, R-C Chen, F Scholer, A Moffat, JS Culpepper

Conference Proceedings  |  2017  |  Proc. Text Retrieval Conf. (TREC)

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RMIT at the TREC 2016 LiveQA Track

J Mackenzie, R-C Chen, JS Culpepper

Conference Proceedings  |  2016  |  Proc. Text Retrieval Conf. (TREC)

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Efficient location-aware web search

J Mackenzie, FM Choudhury, JS Culpepper

Conference Proceedings  |  2015  |  Proceedings of the 20th Australasian Document Computing Symposium on ZZZ - ADCS '15

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Scholarly Works

Keyword Analysis

Artificial Intelligence and Image Processing
Computer Software and Services
Information Services
Library and Information Studies
Communication
Expanding Knowledge
Information Systems

Credentials

Positions

Research Fellow In Web Search Technologies

Computing And Information Systems

Education

Doctorate of Computer Science

RMIT University

Bachelor of Computer Science (Hons)

RMIT University

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