Scimago Journal & Country Rank

Communications of the ACM

Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryComputer Science
Computer Science (miscellaneous)
PublisherAssociation for Computing Machinery (ACM)
Publication typeJournals
Scope Communications of the ACM is the leading print and online publication for the computing and information technology fields. Read by computing's leading professionals worldwide, Communications is recognized as the most trusted and knowledgeable source of industry information for today’s computing professional. Following the traditions of the Communications print magazine, which each month brings its readership of over 100,000 ACM members in-depth coverage of emerging areas of computer science, new trends in information technology, and practical applications, the Communications website brings topical and informative news and material to computing professionals each business day. ACM's membership includes the IT industry's most respected leaders and decision makers. Industry leaders have for more than 50 years used the monthly Communications of the ACM magazine as a platform to present and debate various technology implications, public policies, engineering challenges, and market trends. The Communications website continues that practice.


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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.

Computer Science (miscellaneous)1999Q1
Computer Science (miscellaneous)2000Q1
Computer Science (miscellaneous)2001Q1
Computer Science (miscellaneous)2002Q1
Computer Science (miscellaneous)2003Q1
Computer Science (miscellaneous)2004Q1
Computer Science (miscellaneous)2005Q1
Computer Science (miscellaneous)2006Q1
Computer Science (miscellaneous)2007Q1
Computer Science (miscellaneous)2008Q1
Computer Science (miscellaneous)2009Q1
Computer Science (miscellaneous)2010Q1
Computer Science (miscellaneous)2011Q1
Computer Science (miscellaneous)2012Q1
Computer Science (miscellaneous)2013Q1
Computer Science (miscellaneous)2014Q1
Computer Science (miscellaneous)2015Q1
Computer Science (miscellaneous)2016Q1
Computer Science (miscellaneous)2017Q1
Computer Science (miscellaneous)2018Q1

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.

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)19991.671
Cites / Doc. (4 years)20002.011
Cites / Doc. (4 years)20012.291
Cites / Doc. (4 years)20022.130
Cites / Doc. (4 years)20032.661
Cites / Doc. (4 years)20043.047
Cites / Doc. (4 years)20053.721
Cites / Doc. (4 years)20063.831
Cites / Doc. (4 years)20073.974
Cites / Doc. (4 years)20084.216
Cites / Doc. (4 years)20093.810
Cites / Doc. (4 years)20104.002
Cites / Doc. (4 years)20114.053
Cites / Doc. (4 years)20124.487
Cites / Doc. (4 years)20134.576
Cites / Doc. (4 years)20145.428
Cites / Doc. (4 years)20154.853
Cites / Doc. (4 years)20164.947
Cites / Doc. (4 years)20174.648
Cites / Doc. (4 years)20184.726
Cites / Doc. (3 years)19991.671
Cites / Doc. (3 years)20001.969
Cites / Doc. (3 years)20012.128
Cites / Doc. (3 years)20022.265
Cites / Doc. (3 years)20032.589
Cites / Doc. (3 years)20042.600
Cites / Doc. (3 years)20054.095
Cites / Doc. (3 years)20063.707
Cites / Doc. (3 years)20073.817
Cites / Doc. (3 years)20083.908
Cites / Doc. (3 years)20093.809
Cites / Doc. (3 years)20103.752
Cites / Doc. (3 years)20114.193
Cites / Doc. (3 years)20123.900
Cites / Doc. (3 years)20135.033
Cites / Doc. (3 years)20144.432
Cites / Doc. (3 years)20154.796
Cites / Doc. (3 years)20164.587
Cites / Doc. (3 years)20174.263
Cites / Doc. (3 years)20184.442
Cites / Doc. (2 years)19991.575
Cites / Doc. (2 years)20001.647
Cites / Doc. (2 years)20012.345
Cites / Doc. (2 years)20022.043
Cites / Doc. (2 years)20031.998
Cites / Doc. (2 years)20042.785
Cites / Doc. (2 years)20053.998
Cites / Doc. (2 years)20063.381
Cites / Doc. (2 years)20073.361
Cites / Doc. (2 years)20083.679
Cites / Doc. (2 years)20093.369
Cites / Doc. (2 years)20103.611
Cites / Doc. (2 years)20113.571
Cites / Doc. (2 years)20124.482
Cites / Doc. (2 years)20133.891
Cites / Doc. (2 years)20144.354
Cites / Doc. (2 years)20154.402
Cites / Doc. (2 years)20163.957
Cites / Doc. (2 years)20173.879
Cites / Doc. (2 years)20184.545
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 Cites199942
Self Cites200044
Self Cites200130
Self Cites200249
Self Cites200364
Self Cites200464
Self Cites200555
Self Cites200639
Self Cites200727
Self Cites200817
Self Cites200933
Self Cites201029
Self Cites201141
Self Cites201230
Self Cites201328
Self Cites201441
Self Cites201542
Self Cites201633
Self Cites201731
Self Cites201821
Total Cites19991215
Total Cites20001453
Total Cites20011575
Total Cites20021733
Total Cites20032079
Total Cites20042111
Total Cites20053010
Total Cites20062584
Total Cites20072565
Total Cites20082583
Total Cites20092312
Total Cites20102540
Total Cites20113103
Total Cites20123202
Total Cites20133765
Total Cites20142987
Total Cites20152724
Total Cites20162243
Total Cites20172029
Total Cites20182212
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 document19991.613
External Cites per document20001.909
External Cites per document20012.088
External Cites per document20022.201
External Cites per document20032.509
External Cites per document20042.521
External Cites per document20054.020
External Cites per document20063.651
External Cites per document20073.777
External Cites per document20083.882
External Cites per document20093.755
External Cites per document20103.709
External Cites per document20114.138
External Cites per document20123.864
External Cites per document20134.996
External Cites per document20144.371
External Cites per document20154.722
External Cites per document20164.519
External Cites per document20174.197
External Cites per document20184.400
Cites per document19991.671
Cites per document20001.969
Cites per document20012.128
Cites per document20022.265
Cites per document20032.589
Cites per document20042.600
Cites per document20054.095
Cites per document20063.707
Cites per document20073.817
Cites per document20083.908
Cites per document20093.809
Cites per document20103.752
Cites per document20114.193
Cites per document20123.900
Cites per document20135.033
Cites per document20144.432
Cites per document20154.796
Cites per document20164.587
Cites per document20174.263
Cites per document20184.442
% 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 documents19993
Non-citable documents20003
Non-citable documents20013
Non-citable documents20022
Non-citable documents20032
Non-citable documents20044
Non-citable documents20054
Non-citable documents200685
Non-citable documents2007188
Non-citable documents2008245
Non-citable documents2009226
Non-citable documents2010203
Non-citable documents2011259
Non-citable documents2012318
Non-citable documents2013367
Non-citable documents2014372
Non-citable documents2015402
Non-citable documents2016442
Non-citable documents2017473
Non-citable documents2018448
Citable documents1999727
Citable documents2000738
Citable documents2001740
Citable documents2002765
Citable documents2003803
Citable documents2004812
Citable documents2005735
Citable documents2006697
Citable documents2007672
Citable documents2008661
Citable documents2009607
Citable documents2010677
Citable documents2011740
Citable documents2012821
Citable documents2013748
Citable documents2014674
Citable documents2015568
Citable documents2016489
Citable documents2017476
Citable documents2018498
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 documents1999353
Uncited documents2000345
Uncited documents2001341
Uncited documents2002329
Uncited documents2003339
Uncited documents2004329
Uncited documents2005184
Uncited documents2006256
Uncited documents2007341
Uncited documents2008404
Uncited documents2009414
Uncited documents2010430
Uncited documents2011524
Uncited documents2012624
Uncited documents2013629
Uncited documents2014619
Uncited documents2015571
Uncited documents2016538
Uncited documents2017565
Uncited documents2018579
Cited documents1999377
Cited documents2000396
Cited documents2001402
Cited documents2002438
Cited documents2003466
Cited documents2004487
Cited documents2005555
Cited documents2006526
Cited documents2007519
Cited documents2008502
Cited documents2009419
Cited documents2010450
Cited documents2011475
Cited documents2012515
Cited documents2013486
Cited documents2014427
Cited documents2015399
Cited documents2016393
Cited documents2017384
Cited documents2018367
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