OpenJournalRank

Journal rankings · indicator year 2007

Choose a field to open its ranking, or a journal to find its row in its subfield’s list.

Subfield ranking · 2007

Computational Theory and Mathematics journal rankings 2007

76 ranked journals · Subfield in Computer Science

Computational Theory and Mathematics has 76 ranked journals in 2007. Its median journal scores above the world average: OJR 1.14 against 1.00, up 0.05 on 2006. A journal needs OJR 1.98 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: 2007. Journal access status and listed APC: source snapshot September 23, 2026.

Ranked journals

Journals whose main subfield sits in this category and that published at least 30 citable documents (articles, reviews and conference papers) in 2004–2006, the window the 2007 score is computed on.

76
12% of Computer Science
Median OJR

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.

1.14+0.05 vs 2006
This subfieldAll 0.86World 1.00
Open-access journals

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.

13%
All fields: 16%
Median listed APC

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.

$3,090
Median positive listed APC: $3,090 among 38 journals. Another 1 lists $0; 37 have no known price. All fields: $3,550.

Subfields of Computer Science (11)

76 ranked journals

Filters

Quartile

Quartiles split the ranked journals of the list you are viewing into four equal groups by OJR. Q1 is the top quarter and Q4 the bottom quarter.

They are computed within the list on screen, so a journal can be Q1 in its subfield and Q2 in the global ranking.

Access
APC (list price)
Loading every ranked journal in this list…
Computational Theory and Mathematics ranking, 2007

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.

OJR

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 2006. This is OpenJournalRank’s own count, not Clarivate’s Journal Impact Factor.

Citable documents (articles, reviews and conference papers) published in 2004–2006, the window the 2007 OJR is computed on. A journal needs at least 30 to be ranked.

Share of the journal’s 2004–2006 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 2007.

Compare
1Journal of the ACMAssociation for Computing Machinery · United States
9.01Q16.69 1.18 down from 2006945%—
2Bulletin of the American Mathematical SocietyOAAmerican Mathematical Society · United States
5.29Q13.03 0.72 down from 200655100%—
3ACM Transactions on Mathematical SoftwareAssociation for Computing Machinery · United States
3.85Q13.76 0.34 up from 20069315%—
4Mathematical ProgrammingSpringer Science+Business Media · Germany
3.35Q12.72 0.26 up from 200635213%$3,090
5Foundations of Computational MathematicsSpringer Science+Business Media · United States
3.21Q12.65 0.17 down from 20065926%$2,290
6International Journal on Software Tools for Technology TransferSpringer Science+Business Media · Germany
3.18Q11.84 2.00 down from 200613217%$3,290
7SIAM Journal on ComputingSociety for Industrial and Applied Mathematics · United States
2.85Q12.82 0.18 up from 200625119%—
8Formal Methods in System DesignSpringer Science+Business Media · Netherlands
2.66Q11.71 1.20 down from 2006800%$2,390
9Logical Methods in Computer ScienceOALogical Methods in Computer Science e.V. · Germany
2.66Q12.07 0.35 down from 200646100%—
10Fuzzy Sets and SystemsElsevier BV · Netherlands
2.59Q12.48 0.90 up from 20066174%$2,550
11Multiscale Modeling and SimulationSociety for Industrial and Applied Mathematics · United States
2.51Q13.53 0.84 up from 200616819%—
12ACM Transactions on AlgorithmsAssociation for Computing Machinery · United States
2.32Q11.81 0.19 up from 2006583%—
13Computational ComplexityBirkhäuser · Switzerland
2.24Q11.85 0.58 up from 20064454%$3,090
14Information and ComputationElsevier BV · United States
2.21Q12.01 0.03 up from 200620745%$2,840
15Journal of Chemical Information and Computer SciencesAmerican Chemical Society · United States
2.21Q1—no 2006 value224——
16Journal of Computer and System SciencesElsevier BV · United States
2.20Q11.60 0.26 down from 200629298%$2,610
17SIAM Journal on Matrix Analysis and ApplicationsSociety for Industrial and Applied Mathematics · United States
2.18Q12.19 0.33 down from 200623114%—
18AlgorithmicaSpringer Science+Business Media · United States
2.02Q11.59 0.77 down from 200617215%$3,290
19Journal of AlgorithmsAcademic Press · United States
1.98Q11.21 0.82 down from 20061250%—
20Bulletin of Symbolic LogicCambridge University Press · United States
1.83Q21.64 1.24 up from 200612616%$3,550
21Reliable ComputingSpringer Nature · Netherlands
1.78Q21.25 0.14 down from 20061100%—
22Discrete Event Dynamic SystemsSpringer Science+Business Media · United States
1.73Q21.30 0.84 down from 20065338%$3,290
23Theoretical Computer ScienceElsevier BV · Netherlands
1.67Q21.76 0.02 up from 20061,30194%$2,880
24Journal of Optimization Theory and ApplicationsSpringer Science+Business Media · Netherlands
1.58Q21.07 0.15 down from 200642410%$3,190
25Journal of Global OptimizationSpringer Science+Business Media · Netherlands
1.53Q21.27 0.19 down from 200637012%$2,990
26Journal of Symbolic ComputationElsevier BV · United Kingdom
1.52Q21.37 0.23 up from 200621799%$3,160
27International Journal of General SystemsTaylor & Francis · Switzerland
1.40Q21.18 0.16 up from 20061280%—
28Discrete OptimizationElsevier BV · Netherlands
1.40Q20.81 0.12 down from 200699100%$2,760
29Acta InformaticaSpringer Science+Business Media · Germany
1.33Q21.43 0.11 up from 20068322%$3,290
30Set-Valued AnalysisSpringer Science+Business Media · Netherlands
1.32Q20.83 0.43 down from 20067510%—
31Journal of Computer-Aided Molecular DesignSpringer Science+Business Media · Netherlands
1.32Q22.33 0.16 up from 200617514%$4,190
32SIAM Journal on Discrete MathematicsSociety for Industrial and Applied Mathematics · United States
1.28Q21.37 0.30 up from 200623220%—
33Journal of Combinatorial OptimizationSpringer Science+Business Media · Netherlands
1.24Q21.22 0.08 down from 20061599%$3,190
34SAR and QSAR in environmental researchTaylor & Francis · Switzerland
1.23Q22.00 0.35 up from 20061132%—
35OptimizationTaylor & Francis · Netherlands
1.23Q20.74 0.04 down from 200613616%—
1.20Q21.40 0.19 up from 200616713%$4,880
37Studia LogicaSpringer Science+Business Media · Poland
1.20Q20.97 0.09 up from 200617111%$2,990
38Information Processing LettersElsevier BV · Netherlands
1.16Q20.94 0.23 down from 20066578%$2,590
39Theory of Computing SystemsSpringer Science+Business Media · United States
1.13Q30.97 0.39 down from 200612213%$3,190
40Complex SystemsUnited States
1.10Q30.84 0.39 down from 20063880%—
41Mathematical Methods of Operations ResearchSpringer Science+Business Media · Germany
1.08Q30.74 0.09 down from 200622011%$2,990
1.07Q30.95 0.73 up from 200613210%—
43ACM SIGACT NewsAssociation for Computing Machinery · United States
1.07Q30.87 0.08 down from 20061274%—
44Discrete Applied MathematicsElsevier BV · Netherlands
1.04Q30.91 0.17 down from 2006654100%$3,090
45Optimization LettersSpringer Science+Business Media · Switzerland
1.03Q30.72no 2006 value328%$3,090—
46Numerical AlgorithmsSpringer Science+Business Media · Netherlands
0.99Q30.84 0.24 down from 200621611%$3,290
47Numerical Functional Analysis and OptimizationTaylor & Francis · United States
0.98Q30.97 0.17 up from 20061263%—
0.92Q30.92 0.13 down from 20069465%$0 listed
0.92Q31.49 0.12 down from 200635112%—
50ACM SIGSAM BulletinAssociation for Computing Machinery · United States
0.90Q30.94 0.43 up from 200651——

Citations made in 2007. Corpus-wide, 72.1% of core-journal articles and reviews published that year have at least one matched reference; the share varies by journal and field.

35 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 2004–2006, 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.

Rising journals

At a glance

Indicator year: 2007. Publication window: 2004–2006. How these summaries are calculated

Ranked journals
76
Window papers (baseline)
33,180 +24.1% from indicator year 2004
Median OJR
1.14 +14.4% from indicator year 2004
Rising journals (2025)
6

Window papers are the baseline paper population: citable papers (articles, reviews and conference papers) from 2004–2006 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.

Category by indicator year
MeasureYear series20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025
Ranked journals6263677271717076787984909394101103103107110113112113112115118118
Window papers (baseline)21,39322,60523,56425,19826,73028,67930,89933,18035,97038,55740,42241,61643,18844,70746,02546,21745,83845,08144,37645,11746,47649,42052,12354,24354,87856,668
Median OJR0.800.920.820.970.9971.0051.091.141.0761.0750.9990.940.9050.8970.750.740.700.550.570.490.430.400.360.330.350.31

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.