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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Computer Science 59 3439 3343 1662 1603 219 13224

Janak H. Patel publications per year

The chart shows the history of publications by Janak H. Patel between 1976 and 2018, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Janak H. Patel published across 43 years, from 1976 to 2018, averaging 5.2 papers a year. Output peaked at 19 publications in 1997. 3 of the 225 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1976 to 2018. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 1997. 1976: 1 publication 1977: 0 publications 1978: 1 publication 1979: 2 publications 1980: 1 publication 1981: 1 publication 1982: 4 publications 1983: 4 publications 1984: 3 publications 1985: 4 publications 1986: 2 publications 1987: 8 publications 1988: 9 publications 1989: 15 publications 1990: 14 publications 1991: 14 publications 1992: 15 publications 1993: 15 publications 1994: 12 publications 1995: 12 publications 1996: 17 publications 1997: 19 publications 1998: 13 publications 1999: 8 publications 2000: 6 publications 2001: 4 publications 2002: 3 publications 2003: 2 publications 2004: 6 publications 2005: 2 publications 2006: 0 publications 2007: 0 publications 2008: 0 publications 2009: 2 publications 2010: 0 publications 2011: 1 publication 2012: 0 publications 2013: 0 publications 2014: 2 publications 2015: 0 publications 2016: 0 publications 2017: 2 publications 2018: 1 publication
1976 2018

225 publications in total across all disciplines

View publications per year as a table
Janak H. Patel: publications per year, 1976 to 2018
Year Publications
1976 1
1977 0
1978 1
1979 2
1980 1
1981 1
1982 4
1983 4
1984 3
1985 4
1986 2
1987 8
1988 9
1989 15
1990 14
1991 14
1992 15
1993 15
1994 12
1995 12
1996 17
1997 19
1998 13
1999 8
2000 6
2001 4
2002 3
2003 2
2004 6
2005 2
2006 0
2007 0
2008 0
2009 2
2010 0
2011 1
2012 0
2013 0
2014 2
2015 0
2016 0
2017 2
2018 1
Total 225
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Janak H. Patel 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 Janak H. Patel 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, 212–221 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: 219 publications — 53rd percentile

53% 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
212–221 490 219
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
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
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Janak H. Patel 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 Janak H. Patel 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, 58–59 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: 59 D-Index — 77th percentile

77% 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 59
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
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
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Research.com Recognitions

  • 2001 - ACM Fellow For his outstanding contributions to the fields of test generation and fault simulation of sequential circuits, cache consistency protocols, interconnection networks, and error detection.

Overview

What is he best known for?

The fields of study he is best known for:

  • Operating system
  • Algorithm
  • Programming language

His primary scientific interests are in Parallel computing, Fault coverage, Algorithm, Automatic test pattern generation and Sequential logic. His work on Cache and Multiprocessing as part of general Parallel computing research is often related to Reliability theory, thus linking different fields of science. His Fault coverage study integrates concerns from other disciplines, such as Very-large-scale integration, Testability and Stuck-at fault.

His Algorithm study incorporates themes from Word and Data scrubbing. His work on Test compression as part of general Automatic test pattern generation study is frequently linked to Traverse, therefore connecting diverse disciplines of science. His study in Sequential logic is interdisciplinary in nature, drawing from both Fault Simulator, Genetic algorithm and State.

His most cited work include:

  • HITEC: a test generation package for sequential circuits (625 citations)
  • A low-overhead coherence solution for multiprocessors with private cache memories (444 citations)
  • Test set compaction algorithms for combinational circuits (429 citations)

What are the main themes of his work throughout his whole career to date?

The scientist’s investigation covers issues in Algorithm, Sequential logic, Automatic test pattern generation, Fault coverage and Stuck-at fault. His Algorithm research focuses on Very-large-scale integration and how it connects with Speedup. His biological study spans a wide range of topics, including Genetic algorithm, State, Benchmark, Parallel computing and Fault Simulator.

Janak H. Patel works on Automatic test pattern generation which deals in particular with Test compression. His research on Fault coverage also deals with topics like

  • Electronic engineering which intersects with area such as Digital electronics,
  • Testability which connect with Design for testing and Logic synthesis. His Stuck-at fault research includes elements of Process, Logic simulation, Real-time computing, Fault model and Fault indicator.

He most often published in these fields:

  • Algorithm (40.96%)
  • Sequential logic (34.94%)
  • Automatic test pattern generation (33.73%)

What were the highlights of his more recent work (between 1998-2014)?

  • Algorithm (40.96%)
  • Automatic test pattern generation (33.73%)
  • Test compression (16.87%)

In recent papers he was focusing on the following fields of study:

His main research concerns Algorithm, Automatic test pattern generation, Test compression, Fault coverage and Sequential logic. His Algorithm study incorporates themes from Upper and lower bounds and Benchmark. His studies in Automatic test pattern generation integrate themes in fields like Combinational logic, Very-large-scale integration, Directed graph and Stuck-at fault.

The concepts of his Test compression study are interwoven with issues in Computer hardware, Reduction, Built-in self-test, Scan chain and Test data. His Fault coverage research is multidisciplinary, incorporating perspectives in Overhead and Set. His Sequential logic study combines topics in areas such as State, Fault Simulator, Current, Tree traversal and Test set.

Between 1998 and 2014, his most popular works were:

  • Reducing test application time for full scan embedded cores (331 citations)
  • The effect of a multicomponent multidisciplinary bundle of interventions on sleep and delirium in medical and surgical intensive care patients (148 citations)
  • A case study on the implementation of the Illinois Scan Architecture (128 citations)

In his most recent research, the most cited papers focused on:

  • Operating system
  • Algorithm
  • Programming language

Automatic test pattern generation, Algorithm, Test compression, Test data and Very-large-scale integration are his primary areas of study. The Automatic test pattern generation study combines topics in areas such as Control reconfiguration and Embedded system. In the field of Algorithm, his study on Directed acyclic graph, Graph traversal and Directed graph overlaps with subjects such as Small number and Traverse.

His Test compression study is concerned with the field of Fault coverage as a whole. His Test data research incorporates elements of System testing, Computer engineering and Scan chain, Integrated circuit. The study incorporates disciplines such as Boolean satisfiability problem, Combinational logic, Redundancy and Stuck-at fault in addition to Very-large-scale integration.

Best Publications

  • HITEC: a test generation package for sequential circuits

    Thomas Niermann;Janak H. Patel

  • A low-overhead coherence solution for multiprocessors with private cache memories

    Mark S. Papamarcos;Janak H. Patel

  • Test set compaction algorithms for combinational circuits

    Ilker Hamzaoglu;Janak H. Patel

  • PROOFS: a fast, memory-efficient sequential circuit fault simulator

    T.M. Niermann;Wu-Tung Cheng;J.H. Patel

  • Stride directed prefetching in scalar processors

    John W. C. Fu;Janak H. Patel;Bob L. Janssens

  • Reducing test application time for full scan embedded cores

    I. Hamzaoglu;J.H. Patel

  • New Techniques for Deterministic Test Pattern Generation

    Ilker Hamzaoglu;Janak H. Patel

  • Reliability of scrubbing recovery-techniques for memory systems

    A.M. Saleh;J.J. Serrano;J.H. Patel

  • Sequential Circuit Test Generation in a Genetic Algorithm Framework

    Elizabeth M. Rudnick;Janak H. Patel;Gary S. Greenstein;Thomas M. Niermann

  • Accurate low-cost methods for performance evaluation of cache memory systems

    S. Laha;J.H. Patel;R.K. Iyer

  • Sequential circuit test generation using dynamic state traversal

    Michael S. Hsiao;Elizabeth M. Rudnick;Janak H. Patel

  • Data prefetching in multiprocessor vector cache memories

    John W. C. Fu;Janak H. Patel

  • An optimization based approach to the partial scan design problem

    V. Chickermane;J.H. Patel

  • A case study on the implementation of the Illinois Scan Architecture

    F.F. Hsu;K.M. Butler;J.H. Patel

  • A gate-level simulation environment for alpha-particle-induced transient faults

    Hungse Cha;E.M. Rudnick;J.H. Patel;R.K. Iyer

  • Processor-memory interconnections for multiprocessors

    Janak H. Patel

  • A fault oriented partial scan design approach

    V. Chickermane;J.H. Patel

  • Segment delay faults: a new fault model

    K. Heragu;J.H. Patel;V.D. Agrawal

  • Application of Saluja-Karpovsky compactors to test responses with many unknowns

    J.H. Patel;S.S. Lumetta;S.M. Reddy

  • Error recovery in shared memory multiprocessors using private caches

    K.-L. Wu;W.K. Fuchs;J.H. Patel

Frequent Co-Authors

Michael S. Hsiao
Michael S. Hsiao Virginia Tech
Alok Choudhary
Alok Choudhary Northwestern University
Jacob A. Abraham
Jacob A. Abraham The University of Texas at Austin
W.K. Fuchs
W.K. Fuchs University of Florida
Prithviraj Banerjee
Prithviraj Banerjee Ansys (United States)
Vishwani D. Agrawal
Vishwani D. Agrawal Auburn University
Narendra Ahuja
Narendra Ahuja University of Illinois at Urbana-Champaign
Ravishankar K. Iyer
Ravishankar K. Iyer University of Illinois at Urbana-Champaign
Wu-Tung Cheng
Wu-Tung Cheng Mentor Graphics
Pinaki Mazumder
Pinaki Mazumder University of Michigan–Ann Arbor

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