Scimago Journal & Country Rank

IEEE Transactions on Knowledge and Data Engineering


United States

Universities and research institutions in United States

Subject Area and Category


IEEE Computer Society

IEEE Computer Society in Scimago Institutions Rankings



Publication type








How to publish in this journal


The scope includes the knowledge and data engineering aspects of computer science, artificial intelligence, electrical engineering, computer engineering, and other appropriate fields. This Transactions provides an international and interdisciplinary forum to communicate results of new developments in knowledge and data engineering and the feasibility studies of these ideas in hardware and software. Specific areas to be covered are as follows: Fields and Areas of Knowledge and Data Engineering: (a) Knowledge and data engineering aspects of knowledge based and expert systems, (b) Artificial Intelligence techniques relating to knowledge and data management, (c) Knowledge and data engineering tools and techniques, (d) Distributed knowledge base and database processing, (e) Real-time knowledge bases and databases, (f) Architectures for knowledge and data based systems, (g) Data management methodologies, (h) Database design and modeling, (i) Query, design, and implementation languages, (j) Integrity, security, and fault tolerance, (k) Distributed database control, (l) Statistical databases, (m) System integration and modeling of these systems, (n) Algorithms for these systems, (o) Performance evaluation of these algorithms, (p) Data communications aspects of these systems, and (q) Applications of these systems. 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.

Computational Theory and Mathematics1999Q2
Computational Theory and Mathematics2000Q2
Computational Theory and Mathematics2001Q1
Computational Theory and Mathematics2002Q1
Computational Theory and Mathematics2003Q2
Computational Theory and Mathematics2004Q2
Computational Theory and Mathematics2005Q1
Computational Theory and Mathematics2006Q1
Computational Theory and Mathematics2007Q1
Computational Theory and Mathematics2008Q1
Computational Theory and Mathematics2009Q1
Computational Theory and Mathematics2010Q1
Computational Theory and Mathematics2011Q1
Computational Theory and Mathematics2012Q1
Computational Theory and Mathematics2013Q1
Computational Theory and Mathematics2014Q1
Computational Theory and Mathematics2015Q1
Computational Theory and Mathematics2016Q1
Computational Theory and Mathematics2017Q1
Computational Theory and Mathematics2018Q1
Computational Theory and Mathematics2019Q1
Computer Science Applications1999Q2
Computer Science Applications2000Q2
Computer Science Applications2001Q1
Computer Science Applications2002Q1
Computer Science Applications2003Q1
Computer Science Applications2004Q1
Computer Science Applications2005Q1
Computer Science Applications2006Q1
Computer Science Applications2007Q1
Computer Science Applications2008Q1
Computer Science Applications2009Q1
Computer Science Applications2010Q1
Computer Science Applications2011Q1
Computer Science Applications2012Q1
Computer Science Applications2013Q1
Computer Science Applications2014Q1
Computer Science Applications2015Q1
Computer Science Applications2016Q1
Computer Science Applications2017Q1
Computer Science Applications2018Q1
Computer Science Applications2019Q1
Information Systems1999Q2
Information Systems2000Q2
Information Systems2001Q1
Information Systems2002Q1
Information Systems2003Q1
Information Systems2004Q1
Information Systems2005Q1
Information Systems2006Q1
Information Systems2007Q1
Information Systems2008Q1
Information Systems2009Q1
Information Systems2010Q1
Information Systems2011Q1
Information Systems2012Q1
Information Systems2013Q1
Information Systems2014Q1
Information Systems2015Q1
Information Systems2016Q1
Information Systems2017Q1
Information Systems2018Q1
Information Systems2019Q1

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)19991.622
Cites / Doc. (4 years)20001.980
Cites / Doc. (4 years)20012.335
Cites / Doc. (4 years)20023.026
Cites / Doc. (4 years)20032.793
Cites / Doc. (4 years)20042.782
Cites / Doc. (4 years)20053.796
Cites / Doc. (4 years)20064.962
Cites / Doc. (4 years)20075.412
Cites / Doc. (4 years)20086.474
Cites / Doc. (4 years)20096.053
Cites / Doc. (4 years)20105.208
Cites / Doc. (4 years)20115.336
Cites / Doc. (4 years)20125.407
Cites / Doc. (4 years)20135.868
Cites / Doc. (4 years)20145.772
Cites / Doc. (4 years)20155.766
Cites / Doc. (4 years)20166.177
Cites / Doc. (4 years)20176.161
Cites / Doc. (4 years)20186.965
Cites / Doc. (4 years)20197.294
Cites / Doc. (3 years)19991.622
Cites / Doc. (3 years)20001.673
Cites / Doc. (3 years)20012.409
Cites / Doc. (3 years)20022.970
Cites / Doc. (3 years)20032.196
Cites / Doc. (3 years)20042.568
Cites / Doc. (3 years)20053.788
Cites / Doc. (3 years)20065.315
Cites / Doc. (3 years)20075.296
Cites / Doc. (3 years)20085.879
Cites / Doc. (3 years)20094.968
Cites / Doc. (3 years)20105.003
Cites / Doc. (3 years)20114.652
Cites / Doc. (3 years)20125.334
Cites / Doc. (3 years)20135.512
Cites / Doc. (3 years)20145.275
Cites / Doc. (3 years)20155.480
Cites / Doc. (3 years)20166.099
Cites / Doc. (3 years)20175.928
Cites / Doc. (3 years)20186.082
Cites / Doc. (3 years)20197.628
Cites / Doc. (2 years)19991.189
Cites / Doc. (2 years)20001.883
Cites / Doc. (2 years)20012.500
Cites / Doc. (2 years)20022.256
Cites / Doc. (2 years)20031.947
Cites / Doc. (2 years)20042.460
Cites / Doc. (2 years)20054.109
Cites / Doc. (2 years)20065.103
Cites / Doc. (2 years)20074.336
Cites / Doc. (2 years)20084.441
Cites / Doc. (2 years)20094.402
Cites / Doc. (2 years)20104.083
Cites / Doc. (2 years)20114.472
Cites / Doc. (2 years)20124.919
Cites / Doc. (2 years)20134.716
Cites / Doc. (2 years)20144.580
Cites / Doc. (2 years)20155.317
Cites / Doc. (2 years)20165.722
Cites / Doc. (2 years)20174.801
Cites / Doc. (2 years)20185.896
Cites / Doc. (2 years)20197.251
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 Cites199922
Self Cites20009
Self Cites200115
Self Cites20028
Self Cites200315
Self Cites200417
Self Cites200540
Self Cites200648
Self Cites200741
Self Cites200847
Self Cites200944
Self Cites201054
Self Cites201127
Self Cites201235
Self Cites201365
Self Cites2014101
Self Cites2015133
Self Cites2016141
Self Cites2017124
Self Cites2018136
Self Cites201986
Total Cites1999378
Total Cites2000363
Total Cites2001477
Total Cites2002600
Total Cites2003505
Total Cites2004737
Total Cites20051269
Total Cites20061972
Total Cites20072007
Total Cites20082234
Total Cites20091863
Total Cites20101876
Total Cites20111777
Total Cites20122059
Total Cites20132260
Total Cites20142606
Total Cites20153206
Total Cites20164147
Total Cites20174185
Total Cites20184130
Total Cites20194638
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 document19991.528
External Cites per document20001.631
External Cites per document20012.333
External Cites per document20022.931
External Cites per document20032.130
External Cites per document20042.509
External Cites per document20053.669
External Cites per document20065.186
External Cites per document20075.187
External Cites per document20085.755
External Cites per document20094.851
External Cites per document20104.859
External Cites per document20114.581
External Cites per document20125.244
External Cites per document20135.354
External Cites per document20145.071
External Cites per document20155.253
External Cites per document20165.891
External Cites per document20175.752
External Cites per document20185.882
External Cites per document20197.487
Cites per document19991.622
Cites per document20001.673
Cites per document20012.409
Cites per document20022.970
Cites per document20032.196
Cites per document20042.568
Cites per document20053.788
Cites per document20065.315
Cites per document20075.296
Cites per document20085.879
Cites per document20094.968
Cites per document20105.003
Cites per document20114.652
Cites per document20125.334
Cites per document20135.512
Cites per document20145.275
Cites per document20155.480
Cites per document20166.099
Cites per document20175.928
Cites per document20186.082
Cites per document20197.628
% 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 documents19991
Non-citable documents20000
Non-citable documents20014
Non-citable documents200212
Non-citable documents200314
Non-citable documents200413
Non-citable documents20058
Non-citable documents200613
Non-citable documents200712
Non-citable documents200811
Non-citable documents20097
Non-citable documents20107
Non-citable documents201110
Non-citable documents201211
Non-citable documents201312
Non-citable documents201411
Non-citable documents201510
Non-citable documents201611
Non-citable documents201712
Non-citable documents201812
Non-citable documents201926
Citable documents1999233
Citable documents2000217
Citable documents2001198
Citable documents2002202
Citable documents2003230
Citable documents2004287
Citable documents2005335
Citable documents2006371
Citable documents2007379
Citable documents2008380
Citable documents2009375
Citable documents2010375
Citable documents2011382
Citable documents2012386
Citable documents2013410
Citable documents2014494
Citable documents2015585
Citable documents2016680
Citable documents2017706
Citable documents2018679
Citable documents2019608
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 documents199999
Uncited documents200088
Uncited documents200169
Uncited documents200261
Uncited documents200394
Uncited documents2004105
Uncited documents200592
Uncited documents200676
Uncited documents200768
Uncited documents200857
Uncited documents200975
Uncited documents201073
Uncited documents201163
Uncited documents201261
Uncited documents201358
Uncited documents201491
Uncited documents201593
Uncited documents2016113
Uncited documents2017113
Uncited documents201886
Uncited documents201971
Cited documents1999135
Cited documents2000129
Cited documents2001133
Cited documents2002153
Cited documents2003150
Cited documents2004195
Cited documents2005251
Cited documents2006308
Cited documents2007323
Cited documents2008334
Cited documents2009307
Cited documents2010309
Cited documents2011329
Cited documents2012336
Cited documents2013364
Cited documents2014414
Cited documents2015502
Cited documents2016578
Cited documents2017605
Cited documents2018605
Cited documents2019563
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