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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 35 11622 11290 19 19 194 5818

Basar Oztaysi publications per year

The chart shows the history of publications by Basar Oztaysi between 2005 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Basar Oztaysi published across 21 years, from 2005 to 2025, averaging 12.1 papers a year. Output peaked at 36 publications in 2020. 29 of the 255 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 2005 to 2025. Vertical axis: number of publications, 0 to 36. Peak 36 publications in 2020. 2005: 1 publication 2006: 0 publications 2007: 2 publications 2008: 1 publication 2009: 4 publications 2010: 0 publications 2011: 5 publications 2012: 4 publications 2013: 7 publications 2014: 10 publications 2015: 13 publications 2016: 18 publications 2017: 27 publications 2018: 26 publications 2019: 26 publications 2020: 36 publications 2021: 11 publications 2022: 18 publications 2023: 17 publications 2024: 16 publications 2025: 13 publications
2005 2025

255 publications in total across all disciplines

View publications per year as a table
Basar Oztaysi: publications per year, 2005 to 2025
Year Publications
2005 1
2006 0
2007 2
2008 1
2009 4
2010 0
2011 5
2012 4
2013 7
2014 10
2015 13
2016 18
2017 27
2018 26
2019 26
2020 36
2021 11
2022 18
2023 17
2024 16
2025 13
Total 255
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Basar Oztaysi publications per year - data summary

  • Basar Oztaysi, a Computer Science scholar from Istanbul Technical University, has 255 publications recorded across 21 years, from 2005 to 2025.
  • The oldest publication on record dates to 2005 and the most recent to 2025.
  • The most productive year is 2020, with 36 publications.
  • The least productive years with any output are 2005 and 2008, with 1 publication each.
  • 2 of the 21 years in the span carry no publications at all (2006 and 2010).
  • The rate of publication averages 12.1 papers per year over the whole span, or 13.4 per year counting only the 19 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 75 publications, 29% of the career total.
  • Split into equal eras - 2005-2011: 13 publications (1.9 per year); 2012-2018: 105 publications (15.0 per year); 2019-2025: 137 publications (19.6 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Basar Oztaysi 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 Basar Oztaysi 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, 192–201 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: 194 publications — 44th percentile

44% 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
192–201 519 194
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
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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Basar Oztaysi publication distribution in Computer Science in 2026 - data summary

  • The chart plots the publication count of all 14,188 Computer Science scientists ranked by Research.com in 2026, grouped into 97 ranges running from 32–41 to 991+ publications.
  • Basar Oztaysi, a Computer Science scholar from Istanbul Technical University, records 194 publications - the 44th percentile of the discipline.
  • 44% of ranked Computer Science scientists score the same or lower than Basar Oztaysi, and about 56% score higher.
  • The median of the discipline falls in the 202–211 publications range, and Basar Oztaysi ranks below the median.
  • The most crowded range is 142–151 publications, holding 609 scientists (4% of the field).
  • 70% of the field sits in the lowest quarter of the value range (up to 272–281 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 991 publications or more, 100 scientists in all (<1% of the field).

Basar Oztaysi 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 Basar Oztaysi 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, 34–35 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: 35 D-Index — 20th percentile

20% 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 35
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
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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Basar Oztaysi D-index placement in Computer Science in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 14,188 Computer Science scientists ranked by Research.com in 2026, grouped into 52 ranges running from 30–31 to 131+ D-Index.
  • Basar Oztaysi, a Computer Science scholar from Istanbul Technical University, records 35 D-Index - the 20th percentile of the discipline.
  • 20% of ranked Computer Science scientists score the same or lower than Basar Oztaysi, and about 80% score higher.
  • The median of the discipline falls in the 44–45 D-Index range, and Basar Oztaysi ranks below the median.
  • The most crowded range is 36–37 D-Index, holding 990 scientists (7% of the field).
  • 71% of the field sits in the lowest quarter of the value range (up to 54–55 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 131 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Basar Oztaysi is affiliated with Istanbul Technical University in Turkey and has a significant body of research in decision sciences, computer science, and engineering. Their work covers a broad spectrum of topics with a notable focus on multi-criteria decision making, optimization, and fuzzy systems.

Their research spans several subfields, including management science and operations research, artificial intelligence, control and systems engineering, information systems, and industrial and manufacturing engineering.

Among the main topics of their work are:

  • Multi-Criteria Decision Making
  • Optimization and Mathematical Programming
  • Fuzzy Systems and Optimization
  • Intuitionistic Fuzzy Systems Applications
  • Big Data and Business Intelligence
  • Data Mining Algorithms and Applications
  • Customer churn and segmentation

Basar Oztaysi frequently publishes in venues such as:

  • Journal of Intelligent & Fuzzy Systems
  • Developments of Artificial Intelligence Technologies in Computation and Robotics
  • Notes on Intuitionistic Fuzzy Sets
  • ISAHP proceedings
  • Lecture Notes in Networks and Systems

They have published several notable papers, including:

  • "Evaluation of sustainable energy systems in smart cities using a Multi-Expert Pythagorean fuzzy BWM & TOPSIS methodology," 2024, Expert Systems with Applications
  • "Fuzzy association rule mining approach to identify e-commerce product association considering sales amount," 2022, Complex & Intelligent Systems
  • "A Novel spherical fuzzy CRITIC method and its application to prioritization of supplier selection criteria," 2021, Journal of Intelligent & Fuzzy Systems
  • "A novel interval valued circular intuitionistic fuzzy AHP methodology: Application in digital transformation project selection," 2023, Information Sciences
  • "Fuzzy extensions of PROMETHEE: Models of different complexity with different ranking methods and their comparison," 2020, Fuzzy Sets and Systems

In addition to journal articles, Basar Oztaysi has contributed to book publications through Springer International Publishing and Springer Nature. Titles include:

  • "Intelligent and Fuzzy Techniques for Emerging Conditions and Digital Transformation," 2021
  • "Intelligent and Fuzzy Systems," 2023
  • "Intelligent and Fuzzy Techniques: Smart and Innovative Solutions," 2020

Their frequent collaborators are:

  • Sezi Çevik Onar
  • Cengiz Kahraman
  • Selçuk Çebi
  • İrem Otay
  • Elmira Farrokhizadeh

Best Publications

  • Fuzzy Multicriteria Decision-Making: A Literature Review

    Cengiz Kahraman;Sezi Cevik Onar;Basar Oztaysi

  • Fuzzy analytic hierarchy process with interval type-2 fuzzy sets

    Cengiz Kahraman;Başar Öztayşi;İrem Uçal Sarı;Ebru Turanoğlu

  • Intuitionistic fuzzy edas method: an application to solid waste disposal site selection

    Cengiz Kahraman;Mehdi Keshavarz Ghorabaee;Edmundas Kazimieras Zavadskas;Sezi Cevik Onar

  • A decision model for information technology selection using AHP integrated TOPSIS-Grey

    Basar Oztaysi

  • Multi-criteria evaluation of alternative-fuel vehicles via a hierarchical hesitant fuzzy linguistic model

    Mesut Yavuz;Basar Oztaysi;Sezi Cevik Onar;Cengiz Kahraman

  • Multi-expert performance evaluation of healthcare institutions using an integrated intuitionistic fuzzy AHP&DEA methodology

    İrem Otay;Basar Oztaysi;Sezi Cevik Onar;Cengiz Kahraman

  • Strategic Decision Selection Using Hesitant fuzzy TOPSIS and Interval Type-2 Fuzzy AHP: A case study

    Sezi Cevik Onar;Başar Oztaysi;Cengiz Kahraman

  • Multi-expert wind energy technology selection using interval-valued intuitionistic fuzzy sets

    Sezi Cevik Onar;Basar Oztaysi;İrem Otay;Cengiz Kahraman

  • A new hesitant fuzzy QFD approach

    Sezi Çevik Onar;Gülçin Büyüközkan;Başar Öztayşi;Cengiz Kahraman

  • A Comprehensive Literature Review of 50 Years of Fuzzy Set Theory

    Cengiz Kahraman;Başar Öztayşi;Sezi Çevik Onar

  • A measurement tool for customer relationship management processes

    Başar Öztayşi;Selime Sezgin;Ahmet Fahri Özok

  • Multi-criteria alternative-fuel technology selection using interval-valued intuitionistic fuzzy sets

    Basar Oztaysi;Sezi Cevik Onar;Cengiz Kahraman;Mesut Yavuz

  • Hesitant fuzzy analytic hierarchy process

    Basar Oztaysi;Sezi Cevik Onar;Eda Bolturk;Cengiz Kahraman

  • Radio frequency identification (RFID) in hospitality

    Başar Öztayşi;Serdar Baysan;Fatma Akpinar

  • A novel trapezoidal intuitionistic fuzzy information axiom approach

    Cengiz Kahraman;Selcuk Cebi;Sezi Cevik Onar;Basar Oztaysi

  • Performance comparison based on customer relationship management using analytic network process

    Başar Öztayşi;Tolga Kaya;Cengiz Kahraman

  • A Group Decision Making Approach Using Interval Type-2 Fuzzy AHP for Enterprise Information Systems Project Selection

    Basar Öztaysi

  • Evaluation of sustainable energy systems in smart cities using a Multi-Expert Pythagorean fuzzy BWM &amp; TOPSIS methodology

    Unknown

  • Hospital Location Selection Using Spherical Fuzzy TOPSIS

    Cengiz Kahraman;Fatma Kutlu Gundogdu;Sezi Cevik Onar;Basar Oztaysi

  • A Novel Trapezoidal Intuitionistic Fuzzy Information Axiom Approach: an Application to Multicriteria Landfill Site Selection

    Cengiz Kahraman;Selcuk Cebi;Sezi Cevik Onar;Basar Oztaysi

  • Evaluation of research proposals for grant funding using interval-valued intuitionistic fuzzy sets

    Basar Oztaysi;Sezi Cevik Onar;Kerim Goztepe;Cengiz Kahraman

  • Supply Chain Management Under Fuzziness

    Cengiz Kahraman;Başar Öztayşi

Frequent Co-Authors

Cengiz Kahraman
Cengiz Kahraman Istanbul Technical University
Luis Martínez
Luis Martínez University of Jaén
Edmundas Kazimieras Zavadskas
Edmundas Kazimieras Zavadskas Vilnius Gediminas Technical University
İhsan Kaya
İhsan Kaya Yıldız Technical University
Gülçin Büyüközkan
Gülçin Büyüközkan Galatasaray University
Rosa M. Rodríguez
Rosa M. Rodríguez University of Jaén

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