Journal rankings · indicator year 2009
Choose a field to open its ranking, or a journal to find its row in its subfield’s list.
Subfield ranking · 2009
Computational Theory and Mathematics journal rankings 2009
79 ranked journals · Subfield in Computer Science
Computational Theory and Mathematics has 79 ranked journals in 2009. Its median journal scores above the world average: OJR 1.08 against 1.00, unchanged on 2008. A journal needs OJR 1.68 to reach Q1. The top three are Journal of the ACM, Bulletin of the American Mathematical Society, and ACM Transactions on Mathematical Software.
Ranks and citation indicators: 2009. 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 2006–2008, the window the 2009 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 Intelligence280
- Information Systems129
- Computer Networks and Communications98
- Computer Vision and Pattern Recognition94
- Computational Theory and Mathematics79
- Hardware and Architecture21
- Computer Science Applications15
- Human-Computer Interaction15
- Computer Graphics and Computer-Aided Design9
- Signal Processing9
- Software5
79 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 2008. This is OpenJournalRank’s own count, not Clarivate’s Journal Impact Factor. | Citable documents (articles, reviews and conference papers) published in 2006–2008, the window the 2009 OJR is computed on. A journal needs at least 30 to be ranked. | Share of the journal’s 2006–2008 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 2009. | Compare |
|---|---|---|---|---|---|---|---|
1Journal of the ACMAssociation for Computing Machinery · United States | 6.30Q1 | 6.32 0.99 up from 2008 | 95 | 12% | — | ||
2Bulletin of the American Mathematical SocietyOAAmerican Mathematical Society · United States | 4.89Q1 | 3.74 0.14 up from 2008 | 65 | 100% | — | ||
3ACM Transactions on Mathematical SoftwareAssociation for Computing Machinery · United States | 3.89Q1 | 4.07 0.03 up from 2008 | 110 | 13% | — | ||
4SIAM Journal on ComputingSociety for Industrial and Applied Mathematics · United States | 3.75Q1 | 3.29 0.02 up from 2008 | 261 | 20% | — | ||
5ACM Transactions on AlgorithmsAssociation for Computing Machinery · United States | 3.56Q1 | 3.32 0.44 up from 2008 | 161 | 12% | — | ||
6Theory of ComputingOAUniversity of Chicago · United States | 3.22Q1 | 3.12 0.63 up from 2008 | 39 | 100% | — | ||
7International Journal on Software Tools for Technology TransferSpringer Science+Business Media · Germany | 3.17Q1 | 3.45 1.04 up from 2008 | 116 | 23% | $3,290 | ||
8Foundations of Computational MathematicsSpringer Science+Business Media · United States | 2.96Q1 | 2.60 0.22 up from 2008 | 73 | 55% | $2,290 | ||
9Mathematical ProgrammingSpringer Science+Business Media · Germany | 2.88Q1 | 2.24 0.28 up from 2008 | 299 | 23% | $3,090 | ||
10Multiscale Modeling and SimulationSociety for Industrial and Applied Mathematics · United States | 2.68Q1 | 2.82 0.41 down from 2008 | 162 | 17% | — | ||
11Fuzzy Sets and SystemsElsevier BV · Netherlands | 2.62Q1 | 2.46 0.44 up from 2008 | 706 | 10% | $2,550 | ||
12Journal of Computer and System SciencesElsevier BV · United States | 2.43Q1 | 1.92 0.22 up from 2008 | 227 | 99% | $2,610 | ||
13Logical Methods in Computer ScienceOALogical Methods in Computer Science e.V. · Germany | 2.23Q1 | 1.83 0.41 down from 2008 | 111 | 100% | — | ||
14Discrete Event Dynamic SystemsSpringer Science+Business Media · United States | 2.09Q1 | 2.17 0.45 up from 2008 | 72 | 26% | $3,290 | ||
15Information and ComputationElsevier BV · United States | 2.06Q1 | 1.73 0.26 down from 2008 | 223 | 50% | $2,840 | ||
16Journal of Computer-Aided Molecular DesignSpringer Science+Business Media · Netherlands | 2.05Q1 | 3.58 0.11 up from 2008 | 214 | 23% | $4,190 | ||
17Formal Methods in System DesignSpringer Science+Business Media · Netherlands | 1.83Q1 | 2.07 0.20 up from 2008 | 67 | 37% | $2,390 | ||
18SIAM Journal on Matrix Analysis and ApplicationsSociety for Industrial and Applied Mathematics · United States | 1.82Q1 | 2.44 0.33 up from 2008 | 243 | 22% | — | ||
19Computational ComplexityBirkhäuser · Switzerland | 1.78Q1 | 1.48 0.10 down from 2008 | 55 | 4% | $3,090 | ||
20Discrete OptimizationElsevier BV · Netherlands | 1.68Q1 | 1.19 0.06 up from 2008 | 138 | 100% | $2,760 | ||
21Journal of Global OptimizationSpringer Science+Business Media · Netherlands | 1.62Q2 | 1.50 0.13 up from 2008 | 443 | 12% | $2,990 | ||
22Journal of Optimization Theory and ApplicationsSpringer Science+Business Media · Netherlands | 1.61Q2 | 1.29 0.14 up from 2008 | 447 | 11% | $3,190 | ||
23Theoretical Computer ScienceElsevier BV · Netherlands | 1.58Q2 | 1.60 0.07 up from 2008 | 1,394 | 100% | $2,880 | ||
24SAR and QSAR in environmental researchTaylor & Francis · Switzerland | 1.44Q2 | 2.35no change | 131 | 14% | — | ||
25Proceedings/Proceedings - International Symposium on Multiple-Valued LogicInstitute of Electrical and Electronics Engineers · United States | 1.43Q2 | 0.82 0.17 up from 2008 | 89 | — | — | ||
26Optimization LettersSpringer Science+Business Media · Switzerland | 1.42Q2 | 1.12 0.22 up from 2008 | 110 | 7% | $3,090 | ||
27QSAR & Combinatorial ScienceWiley · Germany | 1.42Q2 | 2.95 0.83 up from 2008 | 346 | 16% | — | ||
28SIAM Journal on Discrete MathematicsSociety for Industrial and Applied Mathematics · United States | 1.41Q2 | 1.19 0.35 down from 2008 | 269 | 17% | — | ||
29AlgorithmicaSpringer Science+Business Media · United States | 1.41Q2 | 1.36 0.12 up from 2008 | 366 | 22% | $3,290 | ||
30Acta InformaticaSpringer Science+Business Media · Germany | 1.29Q2 | 1.63 0.39 up from 2008 | 84 | 15% | $3,290 | ||
31Information Processing LettersElsevier BV · Netherlands | 1.27Q2 | 1.15 0.14 up from 2008 | 638 | 9% | $2,590 | ||
32Journal of Symbolic ComputationElsevier BV · United Kingdom | 1.26Q2 | 1.19 0.05 down from 2008 | 224 | 100% | $3,160 | ||
33ACM SIGACT NewsAssociation for Computing Machinery · United States | 1.26Q2 | 1.14 0.40 up from 2008 | 141 | 0% | — | ||
34Theory of Computing SystemsSpringer Science+Business Media · United States | 1.22Q2 | 1.13 0.14 up from 2008 | 221 | 35% | $3,190 | ||
35International Journal of General SystemsTaylor & Francis · Switzerland | 1.15Q2 | 0.57 0.42 down from 2008 | 127 | 20% | — | ||
36Reliable ComputingSpringer Nature · Netherlands | 1.15Q2 | 0.86 0.03 down from 2008 | 52 | — | — | ||
37Numerical Linear Algebra with ApplicationsWiley · United Kingdom | 1.13Q2 | 0.99 0.45 down from 2008 | 154 | 18% | $4,880 | ||
38Journal of Combinatorial OptimizationSpringer Science+Business Media · Netherlands | 1.09Q2 | 0.99 0.18 down from 2008 | 238 | 10% | $3,190 | ||
39Computational and Applied MathematicsSpringer Science+Business Media · Brazil | 1.08Q2 | 0.50 0.69 down from 2008 | 80 | 100% | $3,390 | ||
40Studia LogicaSpringer Science+Business Media · Poland | 1.08Q2 | 0.87 0.07 down from 2008 | 177 | 32% | $2,990 | ||
41Mathematical Methods of Operations ResearchSpringer Science+Business Media · Germany | 1.07Q3 | 0.78 0.02 down from 2008 | 230 | 25% | $2,990 | ||
42Discrete Applied MathematicsElsevier BV · Netherlands | 1.03Q3 | 1.08 0.02 up from 2008 | 899 | 99% | $3,090 | ||
43Numerical AlgorithmsSpringer Science+Business Media · Netherlands | 1.01Q3 | 0.95 0.09 up from 2008 | 247 | 17% | $3,290 | ||
44Applications of MathematicsSpringer Science+Business Media · Netherlands | 1.00Q3 | 0.67 0.22 down from 2008 | 95 | 97% | $2,990 | ||
45OptimizationTaylor & Francis · Netherlands | 0.99Q3 | 0.69 0.24 down from 2008 | 207 | 14% | — | ||
46Electronic Journal of Linear AlgebraOAUnited States | 0.97Q3 | 1.13 0.29 up from 2008 | 113 | 100% | — | ||
47Set-Valued AnalysisSpringer Science+Business Media · Netherlands | 0.97Q3 | 1.02 0.25 up from 2008 | 95 | — | — | ||
48Numerical Functional Analysis and OptimizationTaylor & Francis · United States | 0.96Q3 | 0.79 0.03 up from 2008 | 187 | 6% | — | ||
49Control and CyberneticsPoland | 0.91Q3 | 0.53 0.31 down from 2008 | 89 | 0% | — | ||
50Bulletin of Symbolic LogicCambridge University Press · United States | 0.88Q3 | 0.49 0.14 down from 2008 | 114 | 25% | $3,550 |
Subfields of Computer Science, with Computational Theory and Mathematics highlighted.
- Artificial Intelligence280
- Information Systems129
- Computer Networks and Communications98
- Computer Vision and Pattern Recognition94
- Computational Theory and Mathematics79
- Hardware and Architecture21
- Computer Science Applications15
- Human-Computer Interaction15
- Computer Graphics and Computer-Aided Design9
- Signal Processing9
- Software5
Journals
Citations made in 2009. Corpus-wide, 71.4% of core-journal articles and reviews published that year have at least one matched reference; the share varies by journal and field.
39 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 2006–2008, 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: 2009. Publication window: 2006–2008. How these summaries are calculated
- Ranked journals
- 79
- Window papers (baseline)
- 38,557 +24.8% from indicator year 2006
- Median OJR
- 1.075 -1.7% from indicator year 2006
- Rising journals (2025)
- 6
Window papers are the baseline paper population: citable papers (articles, reviews and conference papers) from 2006–2008 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.