Scimago Journal & Country Rank

Communications of the ACM

CountryUnited States
170
H Index
Subject Area and CategoryComputer Science
Computer Science (miscellaneous)
PublisherAssociation for Computing Machinery (ACM)
Publication typeJournals
ISSN00010782
Coverage1970-ongoing
Quartiles

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.

CategoryYearQuartile
Computer Science (miscellaneous)1997Q1
Computer Science (miscellaneous)1998Q1
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
SJR

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.

YearSJR
19991.131
20001.379
20011.761
20022.051
20032.178
20041.958
20051.480
20061.105
20071.301
20081.254
20090.972
20100.926
20111.030
20121.015
20131.412
20141.350
20151.465
20161.185
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)19991.751
Cites / Doc. (4 years)20002.295
Cites / Doc. (4 years)20012.851
Cites / Doc. (4 years)20022.929
Cites / Doc. (4 years)20033.752
Cites / Doc. (4 years)20043.750
Cites / Doc. (4 years)20054.255
Cites / Doc. (4 years)20063.991
Cites / Doc. (4 years)20074.055
Cites / Doc. (4 years)20084.303
Cites / Doc. (4 years)20093.911
Cites / Doc. (4 years)20104.102
Cites / Doc. (4 years)20114.376
Cites / Doc. (4 years)20124.770
Cites / Doc. (4 years)20134.984
Cites / Doc. (4 years)20146.005
Cites / Doc. (4 years)20155.114
Cites / Doc. (4 years)20164.795
Cites / Doc. (3 years)19991.751
Cites / Doc. (3 years)20002.245
Cites / Doc. (3 years)20012.713
Cites / Doc. (3 years)20023.225
Cites / Doc. (3 years)20033.668
Cites / Doc. (3 years)20043.126
Cites / Doc. (3 years)20054.201
Cites / Doc. (3 years)20063.641
Cites / Doc. (3 years)20073.899
Cites / Doc. (3 years)20083.997
Cites / Doc. (3 years)20093.954
Cites / Doc. (3 years)20103.927
Cites / Doc. (3 years)20114.528
Cites / Doc. (3 years)20124.220
Cites / Doc. (3 years)20135.452
Cites / Doc. (3 years)20144.980
Cites / Doc. (3 years)20155.053
Cites / Doc. (3 years)20164.269
Cites / Doc. (2 years)19991.631
Cites / Doc. (2 years)20001.968
Cites / Doc. (2 years)20013.079
Cites / Doc. (2 years)20023.025
Cites / Doc. (2 years)20032.818
Cites / Doc. (2 years)20042.911
Cites / Doc. (2 years)20053.747
Cites / Doc. (2 years)20063.298
Cites / Doc. (2 years)20073.433
Cites / Doc. (2 years)20083.814
Cites / Doc. (2 years)20093.609
Cites / Doc. (2 years)20103.789
Cites / Doc. (2 years)20113.922
Cites / Doc. (2 years)20124.755
Cites / Doc. (2 years)20134.258
Cites / Doc. (2 years)20144.967
Cites / Doc. (2 years)20154.505
Cites / Doc. (2 years)20163.330
Total Cites 
Self-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.

CitesYearValue
Self Cites199930
Self Cites200031
Self Cites200127
Self Cites200238
Self Cites200353
Self Cites200452
Self Cites200550
Self Cites200636
Self Cites200727
Self Cites200827
Self Cites200934
Self Cites201034
Self Cites201140
Self Cites201230
Self Cites201327
Self Cites201438
Self Cites201536
Self Cites201631
Total Cites1999965
Total Cites20001145
Total Cites20011237
Total Cites20021335
Total Cites20031702
Total Cites20041785
Total Cites20052714
Total Cites20062534
Total Cites20072612
Total Cites20082646
Total Cites20092515
Total Cites20102694
Total Cites20113260
Total Cites20123114
Total Cites20133544
Total Cites20142804
Total Cites20152486
Total Cites20161917
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.

CitesYearValue
External Cites per document19991.697
External Cites per document20002.184
External Cites per document20012.654
External Cites per document20023.133
External Cites per document20033.554
External Cites per document20043.035
External Cites per document20054.124
External Cites per document20063.589
External Cites per document20073.858
External Cites per document20083.956
External Cites per document20093.901
External Cites per document20103.878
External Cites per document20114.472
External Cites per document20124.179
External Cites per document20135.411
External Cites per document20144.913
External Cites per document20154.980
External Cites per document20164.200
Cites per document19991.751
Cites per document20002.245
Cites per document20012.713
Cites per document20023.225
Cites per document20033.668
Cites per document20043.126
Cites per document20054.201
Cites per document20063.641
Cites per document20073.899
Cites per document20083.997
Cites per document20093.954
Cites per document20103.927
Cites per document20114.528
Cites per document20124.220
Cites per document20135.452
Cites per document20144.980
Cites per document20155.053
Cites per document20164.269
% 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
19996.02
20007.53
20015.19
20026.56
200318.36
200414.22
200512.70
200610.65
200713.08
200821.12
200914.51
201010.57
20117.51
20128.72
20138.58
20149.18
201510.34
201610.87
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.

DocumentsYearValue
Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20043
Non-citable documents20054
Non-citable documents200686
Non-citable documents2007194
Non-citable documents2008251
Non-citable documents2009265
Non-citable documents2010256
Non-citable documents2011312
Non-citable documents2012337
Non-citable documents2013367
Non-citable documents2014372
Non-citable documents2015402
Non-citable documents2016443
Citable documents1999551
Citable documents2000510
Citable documents2001456
Citable documents2002414
Citable documents2003464
Citable documents2004571
Citable documents2005646
Citable documents2006696
Citable documents2007670
Citable documents2008662
Citable documents2009636
Citable documents2010686
Citable documents2011720
Citable documents2012738
Citable documents2013650
Citable documents2014563
Citable documents2015492
Citable documents2016449
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.

DocumentsYearValue
Uncited documents1999241
Uncited documents2000193
Uncited documents2001145
Uncited documents2002115
Uncited documents2003119
Uncited documents2004163
Uncited documents2005143
Uncited documents2006263
Uncited documents2007343
Uncited documents2008408
Uncited documents2009436
Uncited documents2010459
Uncited documents2011534
Uncited documents2012581
Uncited documents2013569
Uncited documents2014553
Uncited documents2015536
Uncited documents2016559
Cited documents1999310
Cited documents2000317
Cited documents2001311
Cited documents2002299
Cited documents2003345
Cited documents2004411
Cited documents2005507
Cited documents2006519
Cited documents2007521
Cited documents2008505
Cited documents2009465
Cited documents2010483
Cited documents2011498
Cited documents2012494
Cited documents2013448
Cited documents2014382
Cited documents2015358
Cited documents2016333
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