Journal rankings · indicator year 2006
Choose a field to open its ranking, or a journal to find its row in its subfield’s list.
Subfield ranking · 2006
Computational Theory and Mathematics journal rankings 2006
70 ranked journals · Subfield in Computer Science
Computational Theory and Mathematics has 70 ranked journals in 2006. The median OJR rose 0.09 on 2005 to 1.09, above the world average of 1.00; Q1 starts at OJR 1.65. The top three are Journal of the ACM, Bulletin of the American Mathematical Society, and ACM Transactions on Mathematical Software.
Ranks and citation indicators: 2006. Journal access status and listed APC: source snapshot September 23, 2026.
Journals whose main subfield sits in this category and that published at least 30 citable documents (articles, reviews and conference papers) in 2003–2005, the window the 2006 score is computed on.
The OpenJournalRank Indicator (OJR) is a free, publicly available metric of a journal’s field-normalized citation impact, computed from open OpenAlex citation data. It compares citations to a journal’s papers from the previous three years with the world average for papers of the same subfield, year and type, so 1.00 is the world average and values can be compared across fields. It is computed with the NCI3 method.
The middle OJR among ranked journals in this category: half score higher, half lower. 1.00 is the world average for papers of the same subfield, year and type.
The dot is this category, the solid tick is the median of all ranked journals and the dashed line is the world average.
Share of ranked journals in this category that are fully open access, so every paper is free to read. Hybrid journals, which sell subscriptions and open single papers for a fee, are not counted.
Median list price of the article processing charge, in US dollars, among ranked journals in this category that list a price above zero. Journals with a listed APC of $0 and journals with no known price are left out of this median. The At a glance table below gives a second median that includes the $0 prices.
Subfields of Computer Science (11)
- Artificial Intelligence203
- Information Systems88
- Computational Theory and Mathematics70
- Computer Networks and Communications69
- Computer Vision and Pattern Recognition69
- Hardware and Architecture13
- Computer Science Applications12
- Human-Computer Interaction11
- Computer Graphics and Computer-Aided Design9
- Signal Processing8
- Software3
70 ranked journals
Filters
Rank is the position by OJR within the list on screen; 1 is the highest. | OJR is field-normalized 3-year citation impact: 1.00 is the world average for papers of the same subfield, year and type, so values compare across fields. The badge is the journal’s quartile in this list. | Citations per paper over a two-year window, counted from OpenAlex. It is not field-normalized, so compare it only between journals of the same field. ▲ or ▼ is the change from 2005. This is OpenJournalRank’s own count, not Clarivate’s Journal Impact Factor. | Citable documents (articles, reviews and conference papers) published in 2003–2005, the window the 2006 OJR is computed on. A journal needs at least 30 to be ranked. | Share of the journal’s 2003–2005 papers that are free to read in any open-access form. The green OA tag next to a title marks a fully open-access journal. | List price of the article processing charge in US dollars. “$0 listed” means the listed price is zero; a dash means no price is listed. | The line is the journal’s OJR from 2000 to 2006. | Compare |
|---|---|---|---|---|---|---|---|
1Journal of the ACMAssociation for Computing Machinery · United States | 6.22Q1 | 7.87 3.98 up from 2005 | 113 | 8% | — | ||
2Bulletin of the American Mathematical SocietyOAAmerican Mathematical Society · United States | 5.96Q1 | 3.75 1.52 up from 2005 | 49 | 100% | — | ||
3ACM Transactions on Mathematical SoftwareAssociation for Computing Machinery · United States | 4.23Q1 | 3.42 0.30 up from 2005 | 85 | 11% | — | ||
4Discrete Event Dynamic SystemsSpringer Science+Business Media · United States | 3.92Q1 | 2.14 1.13 down from 2005 | 44 | 7% | $3,290 | ||
5SIAM Journal on ComputingSociety for Industrial and Applied Mathematics · United States | 3.27Q1 | 2.64 0.17 down from 2005 | 248 | 16% | — | ||
6Mathematical ProgrammingSpringer Science+Business Media · Germany | 3.23Q1 | 2.46 0.34 down from 2005 | 361 | 12% | $3,090 | ||
7Journal of Computer and System SciencesElsevier BV · United States | 3.11Q1 | 1.85 0.27 up from 2005 | 335 | 99% | $2,610 | ||
8International Journal on Software Tools for Technology TransferSpringer Science+Business Media · Germany | 3.06Q1 | 3.84 1.29 up from 2005 | 119 | 12% | $3,290 | ||
9Foundations of Computational MathematicsSpringer Science+Business Media · United States | 2.86Q1 | 2.82 1.01 up from 2005 | 48 | 29% | $2,290 | ||
10Multiscale Modeling and SimulationSociety for Industrial and Applied Mathematics · United States | 2.36Q1 | 2.69 0.59 down from 2005 | 150 | 22% | — | ||
11Formal Methods in System DesignSpringer Science+Business Media · Netherlands | 2.32Q1 | 2.90 0.43 up from 2005 | 70 | 15% | $2,390 | ||
12AlgorithmicaSpringer Science+Business Media · United States | 2.28Q1 | 2.37 0.62 up from 2005 | 188 | 12% | $3,290 | ||
13Journal of AlgorithmsAcademic Press · United States | 2.25Q1 | 2.03 0.47 up from 2005 | 198 | 0% | — | ||
14Information and ComputationElsevier BV · United States | 2.23Q1 | 1.98 0.42 up from 2005 | 237 | 42% | $2,840 | ||
15SIAM Journal on Matrix Analysis and ApplicationsSociety for Industrial and Applied Mathematics · United States | 2.21Q1 | 2.52 0.69 up from 2005 | 225 | 9% | — | ||
16Journal of Chemical Information and Computer SciencesAmerican Chemical Society · United States | 2.21Q1 | 3.41 0.49 up from 2005 | 471 | — | — | ||
17Fuzzy Sets and SystemsElsevier BV · Netherlands | 2.08Q1 | 1.57 0.11 down from 2005 | 803 | 5% | $2,550 | ||
18Journal of Global OptimizationSpringer Science+Business Media · Netherlands | 1.65Q1 | 1.46 0.27 up from 2005 | 276 | 7% | $2,990 | ||
19Journal of Optimization Theory and ApplicationsSpringer Science+Business Media · Netherlands | 1.65Q2 | 1.22 0.37 up from 2005 | 449 | 4% | $3,190 | ||
20Numerical Linear Algebra with ApplicationsWiley · United Kingdom | 1.44Q2 | 1.21 0.18 up from 2005 | 146 | 12% | $4,880 | ||
21Discrete OptimizationElsevier BV · Netherlands | 1.42Q2 | 0.94 0.40 down from 2005 | 47 | 100% | $2,760 | ||
22Theoretical Computer ScienceElsevier BV · Netherlands | 1.39Q2 | 1.74 0.32 up from 2005 | 1,547 | 99% | $2,880 | ||
23Journal of Symbolic ComputationElsevier BV · United Kingdom | 1.34Q2 | 1.14no change | 263 | 100% | $3,160 | ||
24Set-Valued AnalysisSpringer Science+Business Media · Netherlands | 1.32Q2 | 1.26 0.14 up from 2005 | 61 | 9% | — | ||
25Reliable ComputingSpringer Nature · Netherlands | 1.28Q2 | 1.39 0.52 up from 2005 | 111 | 5% | — | ||
26SIAM Journal on Discrete MathematicsSociety for Industrial and Applied Mathematics · United States | 1.28Q2 | 1.07 0.14 down from 2005 | 214 | 6% | — | ||
27Studia LogicaSpringer Science+Business Media · Poland | 1.25Q2 | 0.88 0.19 down from 2005 | 172 | 13% | $2,990 | ||
28Information Processing LettersElsevier BV · Netherlands | 1.24Q2 | 1.17 0.23 up from 2005 | 672 | 8% | $2,590 | ||
29Complex SystemsUnited States | 1.21Q2 | 1.23 0.78 up from 2005 | 30 | 86% | — | ||
30Journal of Computer-Aided Molecular DesignSpringer Science+Business Media · Netherlands | 1.21Q2 | 2.17 0.32 down from 2005 | 181 | 17% | $4,190 | ||
31Acta InformaticaSpringer Science+Business Media · Germany | 1.20Q2 | 1.32 0.21 down from 2005 | 84 | 26% | $3,290 | ||
32Theory of Computing SystemsSpringer Science+Business Media · United States | 1.19Q2 | 1.36 0.28 up from 2005 | 146 | 15% | $3,190 | ||
33Mathematical Methods of Operations ResearchSpringer Science+Business Media · Germany | 1.17Q2 | 0.83 0.30 up from 2005 | 221 | 7% | $2,990 | ||
34QSAR & Combinatorial ScienceWiley · Germany | 1.14Q2 | 1.62 0.19 down from 2005 | 269 | 17% | — | ||
35International Journal of General SystemsTaylor & Francis · Switzerland | 1.11Q2 | 1.01 0.10 down from 2005 | 100 | 7% | — | ||
36RAIRO - Theoretical Informatics and ApplicationsEDP Sciences · France | 1.08Q3 | 1.05 0.02 up from 2005 | 79 | 77% | $0 listed | ||
37ACM SIGACT NewsAssociation for Computing Machinery · United States | 1.04Q3 | 0.95 0.10 up from 2005 | 121 | 2% | — | ||
38Numerical AlgorithmsSpringer Science+Business Media · Netherlands | 1.04Q3 | 1.08 0.33 up from 2005 | 261 | 4% | $3,290 | ||
39Journal of Combinatorial OptimizationSpringer Science+Business Media · Netherlands | 1.01Q3 | 1.29 0.38 up from 2005 | 105 | 8% | $3,190 | ||
40Discrete Applied MathematicsElsevier BV · Netherlands | 1.00Q3 | 1.09 0.22 up from 2005 | 804 | 96% | $3,090 | ||
41OptimizationTaylor & Francis · Netherlands | 0.94Q3 | 0.78 0.11 up from 2005 | 122 | 7% | — | ||
42SAR and QSAR in environmental researchTaylor & Francis · Switzerland | 0.91Q3 | 1.65 0.18 down from 2005 | 115 | 3% | — | ||
43International Journal of Foundations of Computer ScienceWorld Scientific · Singapore | 0.89Q3 | 0.86 0.04 down from 2005 | 204 | 9% | — | ||
44Numerical Functional Analysis and OptimizationTaylor & Francis · United States | 0.79Q3 | 0.80 0.21 up from 2005 | 135 | 16% | — | ||
45Japan Journal of Industrial and Applied MathematicsSpringer Science+Business Media · Japan | 0.78Q3 | 0.73 0.23 up from 2005 | 68 | 11% | $3,090 | ||
46Electronic Journal of Linear AlgebraOAUnited States | 0.68Q3 | 0.77 0.09 up from 2005 | 85 | 100% | — | ||
47Discrete Mathematics & Theoretical Computer ScienceOAFrench association · United Kingdom | 0.66Q3 | 0.58 0.31 down from 2005 | 220 | 100% | — | ||
48Graphs and CombinatoricsSpringer Science+Business Media · Japan | 0.60Q3 | 0.45 0.03 up from 2005 | 147 | 6% | $2,190 | ||
49Journal of Graph TheoryWiley · United States | 0.58Q3 | 0.51 0.12 up from 2005 | 248 | 12% | $4,150 | ||
50Linear and Multilinear AlgebraTaylor & Francis · Netherlands | 0.57Q3 | 0.38 0.12 down from 2005 | 125 | 5% | — |
Subfields of Computer Science, with Computational Theory and Mathematics highlighted.
- Artificial Intelligence203
- Information Systems88
- Computational Theory and Mathematics70
- Computer Networks and Communications69
- Computer Vision and Pattern Recognition69
- Hardware and Architecture13
- Computer Science Applications12
- Human-Computer Interaction11
- Computer Graphics and Computer-Aided Design9
- Signal Processing8
- Software3
Journals
Citations made in 2006. Corpus-wide, 71.3% of core-journal articles and reviews published that year have at least one matched reference; the share varies by journal and field.
37 additional Computational Theory and Mathematics journals with metrics are unranked under this release’s eligibility rules: a journal needs at least 30 citable documents in 2003–2005, at least 80% of them with a subfield, and a positive world-average expectation. Ranks are within the whole category; filters hide rows without re-ranking. OJR excludes self-citations.
At a glance
Indicator year: 2006. Publication window: 2003–2005. How these summaries are calculated
- Ranked journals
- 70
- Window papers (baseline)
- 30,899 +22.6% from indicator year 2003
- Median OJR
- 1.09 +12.4% from indicator year 2003
- Rising journals (2025)
- 6
Window papers are the baseline paper population: citable papers (articles, reviews and conference papers) from 2003–2005 in all journals of the world-average baseline, including non-core journals, counted by each paper’s own subfield. They are not the papers of the ranked journals alone.
| Measure | Year series | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ranked journals | 62 | 63 | 67 | 72 | 71 | 71 | 70 | 76 | 78 | 79 | 84 | 90 | 93 | 94 | 101 | 103 | 103 | 107 | 110 | 113 | 112 | 113 | 112 | 115 | 118 | 118 | |
| Window papers (baseline) | 21,393 | 22,605 | 23,564 | 25,198 | 26,730 | 28,679 | 30,899 | 33,180 | 35,970 | 38,557 | 40,422 | 41,616 | 43,188 | 44,707 | 46,025 | 46,217 | 45,838 | 45,081 | 44,376 | 45,117 | 46,476 | 49,420 | 52,123 | 54,243 | 54,878 | 56,668 | |
| Median OJR | 0.80 | 0.92 | 0.82 | 0.97 | 0.997 | 1.005 | 1.09 | 1.14 | 1.076 | 1.075 | 0.999 | 0.94 | 0.905 | 0.897 | 0.75 | 0.74 | 0.70 | 0.55 | 0.57 | 0.49 | 0.43 | 0.40 | 0.36 | 0.33 | 0.35 | 0.31 |
How to read these rankings
- OJR, the OpenJournalRank Indicator
- A field-normalized 3-year citation impact, computed from OpenAlex with the NCI3 method. It divides the citations a journal’s papers received by the world average for papers of the same subfield, year and type, so 1.00 is the world average and 2.00 means twice as many citations as expected. Because it is normalized, it can be compared across fields. Read the methodology
- Quartiles
- Q1 to Q4 split the ranked journals of the list you are viewing into four equal groups by OJR. A journal’s quartile depends on the list: the same journal can be Q1 in its subfield and Q2 among all journals.
- Impact factor (2-year)
- Citations per paper over a two-year window, counted from OpenAlex. It is easy to compare with familiar impact factors but is not field-normalized, so compare it only within a field. It is not Clarivate’s Journal Impact Factor. Why it differs from the Journal Impact Factor
- Rank ranges
- Each rank in the latest year carries a likely range from 1,000 resamples of the journal’s papers. Where two journals’ ranges overlap, the data cannot tell them apart, so treat neighbouring ranks as ties.