World's Best Scientists 2026 revealed!
Award Badge
Computer Science
New Zealand
2025

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Computer Science 88 652 1 548 163678

Ian H. Witten publications per year

The chart shows the history of publications by Ian H. Witten between 1970 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ian H. Witten published across 56 years, from 1970 to 2025, averaging 10.2 papers a year. Output peaked at 43 publications in 2009. 16 of the 573 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1970 to 2025. Vertical axis: number of publications, 0 to 43. Peak 43 publications in 2009. 1970: 1 publication 1971: 0 publications 1972: 2 publications 1973: 2 publications 1974: 0 publications 1975: 3 publications 1976: 4 publications 1977: 8 publications 1978: 6 publications 1979: 5 publications 1980: 6 publications 1981: 8 publications 1982: 13 publications 1983: 7 publications 1984: 7 publications 1985: 11 publications 1986: 5 publications 1987: 6 publications 1988: 13 publications 1989: 11 publications 1990: 13 publications 1991: 11 publications 1992: 6 publications 1993: 14 publications 1994: 19 publications 1995: 16 publications 1996: 18 publications 1997: 19 publications 1998: 19 publications 1999: 28 publications 2000: 10 publications 2001: 15 publications 2002: 14 publications 2003: 19 publications 2004: 13 publications 2005: 19 publications 2006: 14 publications 2007: 15 publications 2008: 17 publications 2009: 43 publications 2010: 22 publications 2011: 26 publications 2012: 5 publications 2013: 4 publications 2014: 2 publications 2015: 5 publications 2016: 9 publications 2017: 16 publications 2018: 2 publications 2019: 2 publications 2020: 0 publications 2021: 2 publications 2022: 1 publication 2023: 1 publication 2024: 0 publications 2025: 16 publications
1970 2025

573 publications in total across all disciplines

View publications per year as a table
Ian H. Witten: publications per year, 1970 to 2025
Year Publications
1970 1
1971 0
1972 2
1973 2
1974 0
1975 3
1976 4
1977 8
1978 6
1979 5
1980 6
1981 8
1982 13
1983 7
1984 7
1985 11
1986 5
1987 6
1988 13
1989 11
1990 13
1991 11
1992 6
1993 14
1994 19
1995 16
1996 18
1997 19
1998 19
1999 28
2000 10
2001 15
2002 14
2003 19
2004 13
2005 19
2006 14
2007 15
2008 17
2009 43
2010 22
2011 26
2012 5
2013 4
2014 2
2015 5
2016 9
2017 16
2018 2
2019 2
2020 0
2021 2
2022 1
2023 1
2024 0
2025 16
Total 573
Download as CSV

Ian H. Witten 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 Ian H. Witten sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 97 bars. Horizontal axis: publications, 32–41 to 991+. Vertical axis: number of scientists, 0 to 609. Most scientists, 609, have 142–151 publications. The last bar groups every scientist with 991 publications or more. The highlighted bar, 542–551 publications, is where this scientist sits. 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
32–41 publications 991+

This scientist: 548 publications — 95th percentile

95% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Computer Science scientists by publication count, Research.com 2026 ranking edition. Based on 14,188 ranked scientists.
Publications Scientists This scientist
32–41 7
42–51 22
52–61 82
62–71 134
72–81 249
82–91 324
92–101 421
102–111 420
112–121 497
122–131 544
132–141 555
142–151 609
152–161 559
162–171 534
172–181 556
182–191 583
192–201 519
202–211 508
212–221 490
222–231 437
232–241 423
242–251 408
252–261 377
262–271 301
272–281 335
282–291 320
292–301 293
302–311 250
312–321 238
322–331 206
332–341 209
342–351 208
352–361 162
362–371 176
372–381 127
382–391 158
392–401 128
402–411 104
412–421 94
422–431 99
432–441 83
442–451 108
452–461 73
462–471 77
472–481 69
482–491 84
492–501 62
502–511 54
512–521 57
522–531 51
532–541 51
542–551 32 548
552–561 38
562–571 28
572–581 43
582–591 33
592–601 41
602–611 32
612–621 28
622–631 25
632–641 27
642–651 17
652–661 20
662–671 17
672–681 15
682–691 14
692–701 21
702–711 13
712–721 12
722–731 19
732–741 14
742–751 12
752–761 10
762–771 10
772–781 11
782–791 10
792–801 11
802–811 8
812–821 8
822–831 7
832–841 11
842–851 10
852–861 5
862–871 9
872–881 4
882–891 6
892–901 3
902–911 6
912–921 3
922–931 2
932–941 2
942–951 2
952–961 3
962–971 3
972–981 3
982–990 5
991+ 100
Download as CSV

Ian H. Witten 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 Ian H. Witten sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 52 bars. Horizontal axis: D-Index, 30–31 to 131+. Vertical axis: number of scientists, 0 to 990. Most scientists, 990, have 36–37 D-Index. The last bar groups every scientist with 131 D-Index or more. The highlighted bar, 88–89 D-Index, is where this scientist sits. 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
30–31 D-Index 131+

This scientist: 88 D-Index — 95th percentile

95% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Computer Science scientists by D-index, Research.com 2026 ranking edition. Based on 14,188 ranked scientists.
D-Index Scientists This scientist
30–31 879
32–33 983
34–35 918
36–37 990
38–39 968
40–41 907
42–43 821
44–45 763
46–47 689
48–49 543
50–51 543
52–53 518
54–55 500
56–57 458
58–59 400
60–61 337
62–63 308
64–65 292
66–67 249
68–69 213
70–71 192
72–73 189
74–75 165
76–77 139
78–79 119
80–81 121
82–83 113
84–85 88
86–87 87
88–89 75 88
90–91 69
92–93 57
94–95 46
96–97 38
98–99 34
100–101 36
102–103 27
104–105 37
106–107 18
108–109 31
110–111 19
112–113 16
114–115 12
116–117 20
118–119 15
120–121 5
122–123 20
124–125 8
126–127 5
128–129 7
130 3
131+ 98
Download as CSV

Research.com Recognitions

  • 2025 - Research.com Computer Science in New Zealand Leader Award
  • 2023 - Research.com Computer Science in New Zealand Leader Award
  • 2022 - Research.com Computer Science in New Zealand Leader Award
  • 1997 - Fellow of the Royal Society of New Zealand
  • 1996 - ACM Fellow For contributions to the study of how past behavior can expedite future interaction, in particular adaptive data compression, programming by demonstration, and machine learning.

Overview

Ian H. Witten was a researcher affiliated with the University of Waikato in New Zealand. Their academic career involved contributing to multiple fields of study, primarily within computer science, social sciences, and the arts and humanities.

Their main areas of research included artificial intelligence, information systems, sociology and political science, computer science applications, and literature and literary theory. The variety of these subfields reflected a multidisciplinary approach to their scholarly work.

Among the specific topics Ian H. Witten worked on were natural language processing techniques, misinformation and its impacts, information retrieval and search behavior, web visibility and informetrics, online learning and analytics, text readability and simplification, and digital humanities and scholarship.

Their publication record featured contributions to Research Commons at the University of Waikato. Notably, one of their recent papers was titled "Searching... in a Web", published in 2020 by Research Commons (University of Waikato), which has received citations within the academic community.

  • Christopher Pal
  • James R. Foulds
  • Eibe Frank
  • Mark A. Hall

Throughout their career, Ian H. Witten published multiple works in the Research Commons at the University of Waikato and collaborated frequently with a set of co-authors. These collaborations included researchers such as Christopher Pal, James R. Foulds, Eibe Frank, and Mark A. Hall.

The researcher received formal recognition in their field, being named a Fellow of the Royal Society of New Zealand in 1997. They were also designated an ACM Fellow in 1996 for their contributions to the study of behavioral patterns facilitating future interactions, particularly in adaptive data compression, programming by demonstration, and machine learning.

Best Publications

  • Data mining: practical machine learning tools and techniques with Java implementations

    Ian H. Witten;Eibe Frank

  • Data Mining: Practical Machine Learning Tools and Techniques

    Ian H. Witten;Eibe Frank;Mark A. Hall

  • The WEKA data mining software: an update

    Mark Hall;Eibe Frank;Geoffrey Holmes;Bernhard Pfahringer

  • Arithmetic coding for data compression

    Ian H. Witten;Radford M. Neal;John G. Cleary

  • Managing Gigabytes: Compressing and Indexing Documents and Images

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

  • Text Compression

    Timothy C. Bell;John G. Cleary;Ian H. Witten

  • Generating Accurate Rule Sets Without Global Optimization

    Eibe Frank;Ian H. Witten

  • Data Compression Using Adaptive Coding and Partial String Matching

    J. Cleary;I. Witten

  • Learning to link with wikipedia

    David Milne;Ian H. Witten

  • Induction of model trees for predicting continuous classes

    Yong Wang;Ian H. Witten

  • WEKA: a machine learning workbench

    G. Holmes;A. Donkin;I.H. Witten

  • KEA: practical automatic keyphrase extraction

    Ian H. Witten;Gordon W. Paynter;Eibe Frank;Carl Gutwin

  • Data Mining: Practical Machine Learning Tools and Techniques, Second Edition (Morgan Kaufmann Series in Data Management Systems)

    Ian H. Witten;Eibe Frank

  • Data mining in bioinformatics using Weka

    Eibe Frank;Mark Hall;Len Trigg;Geoffrey Holmes

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

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

  • The zero-frequency problem: estimating the probabilities of novel events in adaptive text compression

    I.H. Witten;T.C. Bell

  • An effective, low-cost measure of semantic relatedness obtained from Wikipedia links

    David Milne;Ian H. Witten

  • Issues in stacked generalization

    Kai Ming Ting;Ian H. Witten

  • Domain-specific keyphrase extraction

    Eibe Frank;Gordon W. Paynter;Ian H. Witten;Carl Gutwin

  • Weka: Practical machine learning tools and techniques with Java implementations

    Ian H. Witten;Eibe Frank;Leonard E. Trigg;Mark A. Hall

  • Arithmetic coding revisited

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

Frequent Co-Authors

Eibe Frank
Eibe Frank University of Waikato
Tim Bell
Tim Bell University of Canterbury
Alistair Moffat
Alistair Moffat University of Melbourne
Saul Greenberg
Saul Greenberg University of Calgary
Harold Thimbleby
Harold Thimbleby Swansea University
Chris Pal
Chris Pal Polytechnique Montréal
Marco Gori
Marco Gori University of Siena
Geoffrey Holmes
Geoffrey Holmes University of Waikato
Matt Jones
Matt Jones Swansea University
Radford M. Neal
Radford M. Neal University of Toronto

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring online education options in computer science can open doors to flexible study schedules and new career opportunities. If you’re looking for a fast track into the tech workforce, consider 3-month certificate programs that pay well. These short-term certifications can qualify you for entry-level roles in areas like IT support, web development, and cybersecurity—often in less than a year.

For those who want to build on their existing knowledge, there are fastest masters degree online programs that let you earn an advanced credential in as little as 12 months. These intensive programs are ideal for driven professionals hoping to pivot or advance quickly in fields such as artificial intelligence or data analytics.

Deciding what path to follow? Review the most useful masters degrees to find out which specializations and online CS programs are in high demand.

Finally, if you’re new to higher education or want a solid foundation, pursuing an associates degree online can be a strategic first step. These flexible, affordable degrees can lead to junior tech roles or act as a stepping stone to further study.

Best Scientists Citing Ian H. Witten

Recently Published Articles