Scimago Journal & Country Rank

Computers and Operations Research

Country United Kingdom  - SIR icon SIR Ranking of United Kingdom
H Index
Subject Area and CategoryComputer Science
Computer Science (miscellaneous)

Decision Sciences
Management Science and Operations Research

Modeling and Simulation
PublisherElsevier Ltd.
Publication typeJournals
Coverage1969, 1974-ongoing
Scope Operations research and computers interact in many scientific fields of vital importance to our society. These include, among others, transportation, economics, investment strategy, inventory control, logistics, safety, reliability, urban planning, and ecology. Computers & Operations Research (COR) provides an international forum for the application of computers and operations research techniques to problems in these and related fields. The common element in all the scientific areas that this Journal addresses is the need for some optimization methodology for determining viable solutions to problems, using computers and the techniques of operations research. However, it is not only the methodology which is of interest: the applications are of equal importance. The two are mutually supportive, since understanding the application helps one greatly to comprehend the optimization methods used, and vice versa.


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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
Management Science and Operations Research1999Q2
Management Science and Operations Research2000Q2
Management Science and Operations Research2001Q1
Management Science and Operations Research2002Q2
Management Science and Operations Research2003Q1
Management Science and Operations Research2004Q2
Management Science and Operations Research2005Q1
Management Science and Operations Research2006Q1
Management Science and Operations Research2007Q1
Management Science and Operations Research2008Q1
Management Science and Operations Research2009Q1
Management Science and Operations Research2010Q1
Management Science and Operations Research2011Q1
Management Science and Operations Research2012Q1
Management Science and Operations Research2013Q1
Management Science and Operations Research2014Q1
Management Science and Operations Research2015Q1
Management Science and Operations Research2016Q1
Management Science and Operations Research2017Q1
Management Science and Operations Research2018Q1
Modeling and Simulation1999Q1
Modeling and Simulation2000Q1
Modeling and Simulation2001Q1
Modeling and Simulation2002Q1
Modeling and Simulation2003Q1
Modeling and Simulation2004Q1
Modeling and Simulation2005Q1
Modeling and Simulation2006Q1
Modeling and Simulation2007Q1
Modeling and Simulation2008Q1
Modeling and Simulation2009Q1
Modeling and Simulation2010Q1
Modeling and Simulation2011Q1
Modeling and Simulation2012Q1
Modeling and Simulation2013Q1
Modeling and Simulation2014Q1
Modeling and Simulation2015Q1
Modeling and Simulation2016Q1
Modeling and Simulation2017Q1
Modeling and Simulation2018Q1

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)19990.523
Cites / Doc. (4 years)20000.614
Cites / Doc. (4 years)20010.803
Cites / Doc. (4 years)20020.898
Cites / Doc. (4 years)20031.021
Cites / Doc. (4 years)20041.267
Cites / Doc. (4 years)20051.546
Cites / Doc. (4 years)20062.087
Cites / Doc. (4 years)20072.396
Cites / Doc. (4 years)20082.936
Cites / Doc. (4 years)20093.444
Cites / Doc. (4 years)20103.907
Cites / Doc. (4 years)20113.745
Cites / Doc. (4 years)20123.997
Cites / Doc. (4 years)20134.304
Cites / Doc. (4 years)20143.899
Cites / Doc. (4 years)20153.671
Cites / Doc. (4 years)20164.230
Cites / Doc. (4 years)20173.999
Cites / Doc. (4 years)20184.717
Cites / Doc. (3 years)19990.523
Cites / Doc. (3 years)20000.582
Cites / Doc. (3 years)20010.722
Cites / Doc. (3 years)20020.929
Cites / Doc. (3 years)20031.000
Cites / Doc. (3 years)20041.113
Cites / Doc. (3 years)20051.508
Cites / Doc. (3 years)20062.028
Cites / Doc. (3 years)20072.322
Cites / Doc. (3 years)20082.831
Cites / Doc. (3 years)20093.334
Cites / Doc. (3 years)20103.848
Cites / Doc. (3 years)20113.538
Cites / Doc. (3 years)20123.762
Cites / Doc. (3 years)20134.006
Cites / Doc. (3 years)20143.540
Cites / Doc. (3 years)20153.489
Cites / Doc. (3 years)20164.169
Cites / Doc. (3 years)20173.964
Cites / Doc. (3 years)20184.641
Cites / Doc. (2 years)19990.442
Cites / Doc. (2 years)20000.467
Cites / Doc. (2 years)20010.594
Cites / Doc. (2 years)20020.872
Cites / Doc. (2 years)20030.681
Cites / Doc. (2 years)20041.033
Cites / Doc. (2 years)20051.404
Cites / Doc. (2 years)20061.857
Cites / Doc. (2 years)20072.165
Cites / Doc. (2 years)20082.609
Cites / Doc. (2 years)20093.218
Cites / Doc. (2 years)20103.372
Cites / Doc. (2 years)20113.195
Cites / Doc. (2 years)20123.385
Cites / Doc. (2 years)20133.377
Cites / Doc. (2 years)20143.226
Cites / Doc. (2 years)20153.249
Cites / Doc. (2 years)20164.095
Cites / Doc. (2 years)20173.835
Cites / Doc. (2 years)20183.976
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 Cites199919
Self Cites200010
Self Cites200117
Self Cites200218
Self Cites200326
Self Cites200422
Self Cites200561
Self Cites200632
Self Cites200764
Self Cites200884
Self Cites2009135
Self Cites2010160
Self Cites2011129
Self Cites2012211
Self Cites2013215
Self Cites2014181
Self Cites2015167
Self Cites2016135
Self Cites2017162
Self Cites2018194
Total Cites1999156
Total Cites2000167
Total Cites2001208
Total Cites2002248
Total Cites2003289
Total Cites2004355
Total Cites2005588
Total Cites2006937
Total Cites20071226
Total Cites20081673
Total Cites20092224
Total Cites20102840
Total Cites20112622
Total Cites20122464
Total Cites20132792
Total Cites20142740
Total Cites20152917
Total Cites20163039
Total Cites20172565
Total Cites20183119
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 document19990.460
External Cites per document20000.547
External Cites per document20010.663
External Cites per document20020.861
External Cites per document20030.910
External Cites per document20041.044
External Cites per document20051.351
External Cites per document20061.959
External Cites per document20072.201
External Cites per document20082.689
External Cites per document20093.132
External Cites per document20103.631
External Cites per document20113.364
External Cites per document20123.440
External Cites per document20133.697
External Cites per document20143.306
External Cites per document20153.289
External Cites per document20163.984
External Cites per document20173.714
External Cites per document20184.353
Cites per document19990.523
Cites per document20000.582
Cites per document20010.722
Cites per document20020.929
Cites per document20031.000
Cites per document20041.113
Cites per document20051.508
Cites per document20062.028
Cites per document20072.322
Cites per document20082.831
Cites per document20093.334
Cites per document20103.848
Cites per document20113.538
Cites per document20123.762
Cites per document20134.006
Cites per document20143.540
Cites per document20153.489
Cites per document20164.169
Cites per document20173.964
Cites per document20184.641
% 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 documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20050
Non-citable documents20062
Non-citable documents200710
Non-citable documents200815
Non-citable documents200923
Non-citable documents201021
Non-citable documents201122
Non-citable documents201213
Non-citable documents201315
Non-citable documents201413
Non-citable documents201516
Non-citable documents201614
Non-citable documents201712
Non-citable documents201813
Citable documents1999298
Citable documents2000287
Citable documents2001288
Citable documents2002267
Citable documents2003289
Citable documents2004319
Citable documents2005390
Citable documents2006462
Citable documents2007528
Citable documents2008591
Citable documents2009667
Citable documents2010738
Citable documents2011741
Citable documents2012655
Citable documents2013697
Citable documents2014774
Citable documents2015836
Citable documents2016729
Citable documents2017647
Citable documents2018672
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 documents1999200
Uncited documents2000187
Uncited documents2001171
Uncited documents2002139
Uncited documents2003153
Uncited documents2004148
Uncited documents2005149
Uncited documents2006149
Uncited documents2007167
Uncited documents2008141
Uncited documents2009166
Uncited documents2010157
Uncited documents2011149
Uncited documents2012119
Uncited documents2013132
Uncited documents2014152
Uncited documents2015180
Uncited documents2016113
Uncited documents201797
Uncited documents201889
Cited documents199998
Cited documents2000100
Cited documents2001117
Cited documents2002128
Cited documents2003136
Cited documents2004171
Cited documents2005241
Cited documents2006315
Cited documents2007371
Cited documents2008465
Cited documents2009524
Cited documents2010602
Cited documents2011614
Cited documents2012549
Cited documents2013580
Cited documents2014635
Cited documents2015672
Cited documents2016630
Cited documents2017562
Cited documents2018596
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