BT Technology Journal

Category	Year	Quartile
Computer Networks and Communications	1999	Q2
Computer Networks and Communications	2000	Q2
Computer Networks and Communications	2001	Q3
Computer Networks and Communications	2002	Q3
Computer Networks and Communications	2003	Q3
Computer Networks and Communications	2004	Q3
Computer Networks and Communications	2005	Q3
Computer Networks and Communications	2006	Q2
Computer Networks and Communications	2007	Q2
Computer Networks and Communications	2008	Q4
Computer Networks and Communications	2009	Q3
Computer Networks and Communications	2010	Q4
Electrical and Electronic Engineering	1999	Q2
Electrical and Electronic Engineering	2000	Q2
Electrical and Electronic Engineering	2001	Q3
Electrical and Electronic Engineering	2002	Q2
Electrical and Electronic Engineering	2003	Q3
Electrical and Electronic Engineering	2004	Q3
Electrical and Electronic Engineering	2005	Q2
Electrical and Electronic Engineering	2006	Q2
Electrical and Electronic Engineering	2007	Q2
Electrical and Electronic Engineering	2008	Q3
Electrical and Electronic Engineering	2009	Q3
Electrical and Electronic Engineering	2010	Q3

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.

Year	SJR
1999	0.305
2000	0.309
2001	0.250
2002	0.336
2003	0.254
2004	0.204
2005	0.355
2006	0.469
2007	0.564
2008	0.176
2009	0.183
2010	0.151

Total Documents

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

Year	Documents
1999	34
2000	79
2001	64
2002	53
2003	79
2004	83
2005	71
2006	91
2007	85
2008	0
2009	0
2010	0

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 document	Year	Value
Cites / Doc. (4 years)	1999	0.498
Cites / Doc. (4 years)	2000	0.354
Cites / Doc. (4 years)	2001	0.277
Cites / Doc. (4 years)	2002	0.363
Cites / Doc. (4 years)	2003	0.435
Cites / Doc. (4 years)	2004	0.327
Cites / Doc. (4 years)	2005	0.746
Cites / Doc. (4 years)	2006	1.084
Cites / Doc. (4 years)	2007	0.975
Cites / Doc. (4 years)	2008	1.042
Cites / Doc. (4 years)	2009	0.769
Cites / Doc. (4 years)	2010	0.784
Cites / Doc. (3 years)	1999	0.498
Cites / Doc. (3 years)	2000	0.365
Cites / Doc. (3 years)	2001	0.260
Cites / Doc. (3 years)	2002	0.350
Cites / Doc. (3 years)	2003	0.383
Cites / Doc. (3 years)	2004	0.332
Cites / Doc. (3 years)	2005	0.800
Cites / Doc. (3 years)	2006	1.210
Cites / Doc. (3 years)	2007	1.024
Cites / Doc. (3 years)	2008	0.676
Cites / Doc. (3 years)	2009	0.824
Cites / Doc. (3 years)	2010	0.671
Cites / Doc. (2 years)	1999	0.503
Cites / Doc. (2 years)	2000	0.363
Cites / Doc. (2 years)	2001	0.310
Cites / Doc. (2 years)	2002	0.322
Cites / Doc. (2 years)	2003	0.359
Cites / Doc. (2 years)	2004	0.295
Cites / Doc. (2 years)	2005	0.914
Cites / Doc. (2 years)	2006	1.364
Cites / Doc. (2 years)	2007	0.512
Cites / Doc. (2 years)	2008	0.676
Cites / Doc. (2 years)	2009	0.647
Cites / Doc. (2 years)	2010	0.000

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.

Cites	Year	Value
Self Cites	1999	16
Self Cites	2000	10
Self Cites	2001	2
Self Cites	2002	16
Self Cites	2003	13
Self Cites	2004	17
Self Cites	2005	32
Self Cites	2006	37
Self Cites	2007	18
Self Cites	2008	0
Self Cites	2009	0
Self Cites	2010	0
Total Cites	1999	104
Total Cites	2000	66
Total Cites	2001	47
Total Cites	2002	62
Total Cites	2003	75
Total Cites	2004	65
Total Cites	2005	172
Total Cites	2006	282
Total Cites	2007	251
Total Cites	2008	167
Total Cites	2009	145
Total Cites	2010	57

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.

Cites	Year	Value
External Cites per document	1999	0.421
External Cites per document	2000	0.309
External Cites per document	2001	0.249
External Cites per document	2002	0.260
External Cites per document	2003	0.316
External Cites per document	2004	0.245
External Cites per document	2005	0.651
External Cites per document	2006	1.052
External Cites per document	2007	0.951
External Cites per document	2008	0.676
External Cites per document	2009	0.824
External Cites per document	2010	0.671
Cites per document	1999	0.498
Cites per document	2000	0.365
Cites per document	2001	0.260
Cites per document	2002	0.350
Cites per document	2003	0.383
Cites per document	2004	0.332
Cites per document	2005	0.800
Cites per document	2006	1.210
Cites per document	2007	1.024
Cites per document	2008	0.676
Cites per document	2009	0.824
Cites per document	2010	0.671

% 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.

Year	International Collaboration
1999	2.94
2000	15.19
2001	6.25
2002	0.00
2003	7.59
2004	38.55
2005	15.49
2006	18.68
2007	0.00
2008	0
2009	0
2010	0

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.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	0
Non-citable documents	2001	0
Non-citable documents	2002	7
Non-citable documents	2003	14
Non-citable documents	2004	22
Non-citable documents	2005	19
Non-citable documents	2006	18
Non-citable documents	2007	23
Non-citable documents	2008	24
Non-citable documents	2009	18
Non-citable documents	2010	5
Citable documents	1999	209
Citable documents	2000	181
Citable documents	2001	181
Citable documents	2002	170
Citable documents	2003	182
Citable documents	2004	174
Citable documents	2005	196
Citable documents	2006	215
Citable documents	2007	222
Citable documents	2008	223
Citable documents	2009	158
Citable documents	2010	80

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.

Documents	Year	Value
Uncited documents	1999	153
Uncited documents	2000	135
Uncited documents	2001	145
Uncited documents	2002	134
Uncited documents	2003	147
Uncited documents	2004	155
Uncited documents	2005	138
Uncited documents	2006	113
Uncited documents	2007	153
Uncited documents	2008	163
Uncited documents	2009	116
Uncited documents	2010	59
Cited documents	1999	56
Cited documents	2000	46
Cited documents	2001	36
Cited documents	2002	43
Cited documents	2003	49
Cited documents	2004	41
Cited documents	2005	77
Cited documents	2006	120
Cited documents	2007	92
Cited documents	2008	84
Cited documents	2009	60
Cited documents	2010	26