World's Best Scientists 2026 revealed!
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Computer Science
Australia
2025

D-Index & Metrics

Computer Science

D-Index
67
Citations
24800
World Ranking
2150
National Ranking
68

Alistair Moffat publication distribution in Computer Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Computer Science in 2026. The highlighted bar marks where Alistair Moffat sits on this spectrum.

32–41 publications: 7 scientists 42–51 publications: 22 scientists 52–61 publications: 82 scientists 62–71 publications: 134 scientists 72–81 publications: 249 scientists 82–91 publications: 324 scientists 92–101 publications: 421 scientists 102–111 publications: 420 scientists 112–121 publications: 497 scientists 122–131 publications: 544 scientists 132–141 publications: 555 scientists 142–151 publications: 609 scientists 152–161 publications: 559 scientists 162–171 publications: 534 scientists 172–181 publications: 556 scientists 182–191 publications: 583 scientists 192–201 publications: 519 scientists 202–211 publications: 508 scientists 212–221 publications: 490 scientists 222–231 publications: 437 scientists 232–241 publications: 423 scientists 242–251 publications: 408 scientists 252–261 publications: 377 scientists 262–271 publications: 301 scientists 272–281 publications: 335 scientists 282–291 publications: 320 scientists 292–301 publications: 293 scientists 302–311 publications: 250 scientists 312–321 publications: 238 scientists 322–331 publications: 206 scientists 332–341 publications: 209 scientists 342–351 publications: 208 scientists 352–361 publications: 162 scientists 362–371 publications: 176 scientists 372–381 publications: 127 scientists 382–391 publications: 158 scientists 392–401 publications: 128 scientists 402–411 publications: 104 scientists 412–421 publications: 94 scientists 422–431 publications: 99 scientists 432–441 publications: 83 scientists 442–451 publications: 108 scientists 452–461 publications: 73 scientists 462–471 publications: 77 scientists 472–481 publications: 69 scientists 482–491 publications: 84 scientists 492–501 publications: 62 scientists 502–511 publications: 54 scientists 512–521 publications: 57 scientists 522–531 publications: 51 scientists 532–541 publications: 51 scientists 542–551 publications: 32 scientists 552–561 publications: 38 scientists 562–571 publications: 28 scientists 572–581 publications: 43 scientists 582–591 publications: 33 scientists 592–601 publications: 41 scientists 602–611 publications: 32 scientists 612–621 publications: 28 scientists 622–631 publications: 25 scientists 632–641 publications: 27 scientists 642–651 publications: 17 scientists 652–661 publications: 20 scientists 662–671 publications: 17 scientists 672–681 publications: 15 scientists 682–691 publications: 14 scientists 692–701 publications: 21 scientists 702–711 publications: 13 scientists 712–721 publications: 12 scientists 722–731 publications: 19 scientists 732–741 publications: 14 scientists 742–751 publications: 12 scientists 752–761 publications: 10 scientists 762–771 publications: 10 scientists 772–781 publications: 11 scientists 782–791 publications: 10 scientists 792–801 publications: 11 scientists 802–811 publications: 8 scientists 812–821 publications: 8 scientists 822–831 publications: 7 scientists 832–841 publications: 11 scientists 842–851 publications: 10 scientists 852–861 publications: 5 scientists 862–871 publications: 9 scientists 872–881 publications: 4 scientists 882–891 publications: 6 scientists 892–901 publications: 3 scientists 902–911 publications: 6 scientists 912–921 publications: 3 scientists 922–931 publications: 2 scientists 932–941 publications: 2 scientists 942–951 publications: 2 scientists 952–961 publications: 3 scientists 962–971 publications: 3 scientists 972–981 publications: 3 scientists 982–990 publications: 5 scientists 991+ publications: 100 scientists
32 publications 991+

This scientist: 358 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 991 publications or more.

Alistair Moffat D-index placement in Computer Science in 2026

The chart shows the D-index (discipline H-index) distribution of Computer Science scientists ranked by Research.com in 2026. The highlighted bar marks where Alistair Moffat sits on this spectrum.

30–31 D-Index: 879 scientists 32–33 D-Index: 983 scientists 34–35 D-Index: 918 scientists 36–37 D-Index: 990 scientists 38–39 D-Index: 968 scientists 40–41 D-Index: 907 scientists 42–43 D-Index: 821 scientists 44–45 D-Index: 763 scientists 46–47 D-Index: 689 scientists 48–49 D-Index: 543 scientists 50–51 D-Index: 543 scientists 52–53 D-Index: 518 scientists 54–55 D-Index: 500 scientists 56–57 D-Index: 458 scientists 58–59 D-Index: 400 scientists 60–61 D-Index: 337 scientists 62–63 D-Index: 308 scientists 64–65 D-Index: 292 scientists 66–67 D-Index: 249 scientists 68–69 D-Index: 213 scientists 70–71 D-Index: 192 scientists 72–73 D-Index: 189 scientists 74–75 D-Index: 165 scientists 76–77 D-Index: 139 scientists 78–79 D-Index: 119 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 113 scientists 84–85 D-Index: 88 scientists 86–87 D-Index: 87 scientists 88–89 D-Index: 75 scientists 90–91 D-Index: 69 scientists 92–93 D-Index: 57 scientists 94–95 D-Index: 46 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 34 scientists 100–101 D-Index: 36 scientists 102–103 D-Index: 27 scientists 104–105 D-Index: 37 scientists 106–107 D-Index: 18 scientists 108–109 D-Index: 31 scientists 110–111 D-Index: 19 scientists 112–113 D-Index: 16 scientists 114–115 D-Index: 12 scientists 116–117 D-Index: 20 scientists 118–119 D-Index: 15 scientists 120–121 D-Index: 5 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 8 scientists 126–127 D-Index: 5 scientists 128–129 D-Index: 7 scientists 130 D-Index: 3 scientists 131+ D-Index: 98 scientists
30 D-Index 131+

This scientist: 67 D-Index — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 131 D-Index or more.

Research.com Recognitions

  • 2025 - Research.com Computer Science in Australia Leader Award
  • 2023 - Research.com Computer Science in Australia Leader Award
  • 2022 - Research.com Computer Science in Australia Leader Award

Overview

Alistair Moffat is affiliated with the University of Melbourne in Australia and has contributed extensively to the field of computer science, particularly focusing on information retrieval and related areas. Their research output spans multiple significant topics and subfields, providing insights across a wide range of subjects within the discipline.

The main areas of study for Moffat include:

  • Information Systems
  • Artificial Intelligence
  • Signal Processing
  • Management Information Systems
  • Management Science and Operations Research

Moffat's research addresses several key topics in computer science, such as:

  • Information Retrieval and Search Behavior
  • Semantic Web and Ontologies
  • Data Management and Algorithms
  • Business Process Modeling and Analysis
  • Topic Modeling
  • Algorithms and Data Compression
  • Service-Oriented Architecture and Web Services

The scientist's recent publications demonstrate a focus on the evaluation and effectiveness of recommender and retrieval systems. Key recent papers include:

  • "Offline evaluation options for recommender systems," 2020, Information Retrieval
  • "Offline recommender system evaluation: Challenges and new directions," 2022, AI Magazine
  • "A Flexible Framework for Offline Effectiveness Metrics," 2022, Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval
  • "Batch Evaluation Metrics in Information Retrieval: Measures, Scales, and Meaning," 2022, IEEE Access
  • "The Impact of Judgment Variability on the Consistency of Offline Effectiveness Measures," 2023, ACM Transactions on Information Systems

Frequent collaborators include:

  • Joel Mackenzie
  • Artem Polyvyanyy
  • Luciano García-Bañuelos
  • Hanan Alkhammash
  • Matthias Petri

Publications are commonly found in venues such as:

  • arXiv (Cornell University)
  • Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval
  • ACM Transactions on Information Systems
  • Information Processing & Management
  • Information Retrieval

The breadth of Moffat's work covers a substantial number of contributions to computer science with a clear orientation towards the technical and methodological aspects of information systems and retrieval. They have developed frameworks and metrics used in offline system evaluation and have investigated the variability and consistency of effectiveness measures within information retrieval systems.

Best Publications

  • Managing Gigabytes: Compressing and Indexing Documents and Images

    I.H. Witten;A. Moffat;T.C. Bell

  • Inverted files for text search engines

    Justin Zobel;Alistair Moffat

  • Managing gigabytes (2nd ed.): compressing and indexing documents and images

    Ian H. Witten;Alistair Moffat;Timothy C. Bell

  • Arithmetic coding revisited

    Alistair Moffat;Radford M. Neal;Ian H. Witten

  • A similarity measure for indefinite rankings

    William Webber;Alistair Moffat;Justin Zobel

  • Rank-biased precision for measurement of retrieval effectiveness

    Alistair Moffat;Justin Zobel

  • Implementing the PPM data compression scheme

    A. Moffat

  • Off-line dictionary-based compression

    N.J. Larsson;A. Moffat

  • Self-indexing inverted files for fast text retrieval

    Alistair Moffat;Justin Zobel

  • Exploring the similarity space

    Justin Zobel;Alistair Moffat

  • Inverted files versus signature files for text indexing

    Justin Zobel;Alistair Moffat;Kotagiri Ramamohanarao

  • From Theory to Practice: Plug and Play with Succinct Data Structures

    Simon Gog;Timo Beller;Alistair Moffat;Matthias Petri

  • Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval

    Ricardo Baeza-Yates;Mounia Lalmas;Alistair Moffat;Berthier Ribeiro-Neto

  • Inverted Index Compression Using Word-Aligned Binary Codes

    Vo Ngoc Anh;Alistair Moffat

  • Offline dictionary-based compression

    N.J. Larsson;A. Moffat

  • Vector-space ranking with effective early termination

    Vo Ngoc Anh;Owen de Kretser;Alistair Moffat

  • Improvements that don't add up: ad-hoc retrieval results since 1998

    Timothy G. Armstrong;Alistair Moffat;William Webber;Justin Zobel

  • Word-based text compression

    A. Moffat

  • Similarity measures for tracking information flow

    Donald Metzler;Yaniv Bernstein;W. Bruce Croft;Alistair Moffat

  • Compression and coding algorithms

    Alistair Moffat;Andrew Turpin

  • Pruned query evaluation using pre-computed impacts

    Vo Ngoc Anh;Alistair Moffat

  • Man-aging Gigabytes: Compressing and Indexing Docu-ments and Images

    Ian H. Witten;Alistair Moffat;Timothy C. Bell

Frequent Co-Authors

Justin Zobel
Justin Zobel University of Melbourne
Andrew Turpin
Andrew Turpin University of Melbourne
Vo Anh
Vo Anh Queensland University of Technology
Falk Scholer
Falk Scholer RMIT University
Ian H. Witten
Ian H. Witten University of Waikato
Tim Bell
Tim Bell University of Canterbury
Ricardo Baeza-Yates
Ricardo Baeza-Yates Royal Institute of Technology
Timothy Baldwin
Timothy Baldwin University of Melbourne
Gary Marchionini
Gary Marchionini University of North Carolina at Chapel Hill
Mark Sanderson
Mark Sanderson RMIT University

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