Scimago Journal & Country Rank

Communications in Combinatorics and Optimizationopen access



Universities and research institutions in Iran
Media Ranking in Iran

Subject Area and Category




Publication type



25382128, 25382136





How to publish in this journal


 Communications in Combinatorics and Optimization is devoted to publishing original and innovative research papers in combinatorics and optimization, peripherally interdisciplinary. The journal aims to provide a complete and reliable source of information on current developments in the fields. Publishing articles with high quality as rapidly as possible and making them available to interested researchers worldwide is the main scope.   The journal encourages contributions from the three important parts of graph theory, combinatorics, and optimization; and their application. The first part includes structural graph theory, extremal graph theory, algebraic graph theory, chemical graph theory, and random graphs. The second part consists of combinatorial design, combinatorial enumeration, coding theory, the combinatorial probabilistic method, etc. The third part includes scheduling, network optimization, integer programming, constrained and unconstrained optimization, game theory, algorithm design, and complexity analysis, etc Join the conversation about this journal

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Control and Optimization2021Q2
Control and Optimization2022Q1
Discrete Mathematics and Combinatorics2021Q2
Discrete Mathematics and Combinatorics2022Q1

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)20170.000
Cites / Doc. (4 years)20180.000
Cites / Doc. (4 years)20190.786
Cites / Doc. (4 years)20201.594
Cites / Doc. (4 years)20211.680
Cites / Doc. (4 years)20221.722
Cites / Doc. (3 years)20170.000
Cites / Doc. (3 years)20180.000
Cites / Doc. (3 years)20190.786
Cites / Doc. (3 years)20201.594
Cites / Doc. (3 years)20211.688
Cites / Doc. (3 years)20221.567
Cites / Doc. (2 years)20170.000
Cites / Doc. (2 years)20180.000
Cites / Doc. (2 years)20190.786
Cites / Doc. (2 years)20201.700
Cites / Doc. (2 years)20211.472
Cites / Doc. (2 years)20221.833
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites20170
Self Cites20180
Self Cites20190
Self Cites20203
Self Cites202112
Self Cites202211
Total Cites20170
Total Cites20180
Total Cites201911
Total Cites202051
Total Cites202181
Total Cites202294
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document20170
External Cites per document20180.000
External Cites per document20190.786
External Cites per document20201.548
External Cites per document20211.468
External Cites per document20221.407
Cites per document20170.000
Cites per document20180.000
Cites per document20190.786
Cites per document20201.594
Cites per document20211.688
Cites per document20221.567
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents20170
Non-citable documents20180
Non-citable documents20190
Non-citable documents20201
Non-citable documents20211
Non-citable documents20221
Citable documents20170
Citable documents20182
Citable documents201914
Citable documents202031
Citable documents202147
Citable documents202259
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents20170
Uncited documents20182
Uncited documents20199
Uncited documents202016
Uncited documents202125
Uncited documents202219
Cited documents20170
Cited documents20180
Cited documents20195
Cited documents202016
Cited documents202123
Cited documents202241
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