Class information for:
Level 1: POLARIZATION MODE DISPERSION PMD//POLARIZATION MODE DISPERSION//OPTICAL FIBER POLARIZATION

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
33 3       OPTICS//IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY 112980
78 2             IEEE PHOTONICS TECHNOLOGY LETTERS//JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL FIBER COMMUNICATION 27533
7799 1                   POLARIZATION MODE DISPERSION PMD//POLARIZATION MODE DISPERSION//OPTICAL FIBER POLARIZATION 1352

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 POLARIZATION MODE DISPERSION PMD authKW 3939165 18% 68% 247
2 POLARIZATION MODE DISPERSION authKW 3294584 16% 67% 210
3 OPTICAL FIBER POLARIZATION authKW 1323382 8% 51% 111
4 PMD COMPENSATION authKW 583601 2% 96% 26
5 POLARIZATION DEPENDENT LOSS PDL authKW 466152 3% 50% 40
6 POLARIZATION DEPENDENT LOSS authKW 450341 3% 47% 41
7 DIFFERENTIAL GROUP DELAY DGD authKW 428472 2% 74% 25
8 OPTICAL FIBER COMMUNICATION authKW 354345 14% 8% 184
9 POLARIZATION MODE DISPERSION COMPENSATION authKW 326334 1% 100% 14
10 DIFFERENTIAL GROUP DELAY authKW 305122 2% 55% 24

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 49984 79% 0% 1066
2 Engineering, Electrical & Electronic 15458 62% 0% 839
3 Telecommunications 9739 23% 0% 312
4 Physics, Applied 1941 26% 0% 354
5 Physics, Multidisciplinary 19 4% 0% 48
6 Computer Science, Cybernetics -0 0% 0% 1
7 Computer Science, Information Systems -0 1% 0% 8
8 Literature -1 0% 0% 1
9 Language & Linguistics -1 0% 0% 1
10 Acoustics -3 0% 0% 1

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPT COMMUN HIGH FREQUENCY ENGN 93230 1% 50% 8
2 OPT POLARIZAT 74589 0% 80% 4
3 LIGHTWAVE COMMUN SYST 69929 0% 100% 3
4 COM FIXED NETWORKS 46619 0% 100% 2
5 CONSORTIUM OPT PROC SWITCHING MILAN 46619 0% 100% 2
6 OPT FIBRE UNIT 46615 0% 50% 4
7 EIM E 43865 1% 24% 8
8 OPT INFORMAT 36404 1% 16% 10
9 CRAWFORD HILL 25848 1% 12% 9
10 NETWORK TECHNOL 23899 2% 4% 23

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE PHOTONICS TECHNOLOGY LETTERS 129792 22% 2% 303
2 JOURNAL OF LIGHTWAVE TECHNOLOGY 122220 19% 2% 255
3 ELECTRONICS LETTERS 11386 10% 0% 140
4 OPTICAL FIBER TECHNOLOGY 9019 2% 2% 22
5 OPTICS LETTERS 8274 8% 0% 104
6 FIBER AND INTEGRATED OPTICS 5411 1% 2% 14
7 OPTICS COMMUNICATIONS 4737 5% 0% 74
8 OPTICS EXPRESS 2849 5% 0% 67
9 OPTICAL AND QUANTUM ELECTRONICS 1389 1% 0% 16
10 CHINESE OPTICS LETTERS 1306 1% 0% 13

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 POLARIZATION MODE DISPERSION PMD 3939165 18% 68% 247 Search POLARIZATION+MODE+DISPERSION+PMD Search POLARIZATION+MODE+DISPERSION+PMD
2 POLARIZATION MODE DISPERSION 3294584 16% 67% 210 Search POLARIZATION+MODE+DISPERSION Search POLARIZATION+MODE+DISPERSION
3 OPTICAL FIBER POLARIZATION 1323382 8% 51% 111 Search OPTICAL+FIBER+POLARIZATION Search OPTICAL+FIBER+POLARIZATION
4 PMD COMPENSATION 583601 2% 96% 26 Search PMD+COMPENSATION Search PMD+COMPENSATION
5 POLARIZATION DEPENDENT LOSS PDL 466152 3% 50% 40 Search POLARIZATION+DEPENDENT+LOSS+PDL Search POLARIZATION+DEPENDENT+LOSS+PDL
6 POLARIZATION DEPENDENT LOSS 450341 3% 47% 41 Search POLARIZATION+DEPENDENT+LOSS Search POLARIZATION+DEPENDENT+LOSS
7 DIFFERENTIAL GROUP DELAY DGD 428472 2% 74% 25 Search DIFFERENTIAL+GROUP+DELAY+DGD Search DIFFERENTIAL+GROUP+DELAY+DGD
8 OPTICAL FIBER COMMUNICATION 354345 14% 8% 184 Search OPTICAL+FIBER+COMMUNICATION Search OPTICAL+FIBER+COMMUNICATION
9 POLARIZATION MODE DISPERSION COMPENSATION 326334 1% 100% 14 Search POLARIZATION+MODE+DISPERSION+COMPENSATION Search POLARIZATION+MODE+DISPERSION+COMPENSATION
10 DIFFERENTIAL GROUP DELAY 305122 2% 55% 24 Search DIFFERENTIAL+GROUP+DELAY Search DIFFERENTIAL+GROUP+DELAY

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 21124 OPTICAL PERFORMANCE MONITORING//OPTICAL PERFORMANCE MONITORING OPM//OPTICAL SIGNAL TO NOISE RATIO OSNR
2 7184 MODULATION FORMAT//DIFFERENTIAL PHASE SHIFT KEYING DPSK//FORMAT CONVERSION
3 11379 POLARIZATION MAINTAINING FIBER//BIREFRINGENT FIBERS//OPTOELECT IND
4 3566 DISPERSION MANAGEMENT//SOLITON TRANSMISSION//DISPERSION MANAGED SOLITONS
5 11784 OPTICAL PHASE LOCKED LOOPS//JOURNAL OF LIGHTWAVE TECHNOLOGY//OPTICAL PHASE LOCKED LOOPS OPLLS
6 1032 COHERENT DETECTION//COHERENT COMMUNICATIONS//OPT NETWORKS GRP
7 12144 DISTRIBUTED OPTICAL FIBER SENSOR//PHASE SENSITIVE OPTICAL TIME DOMAIN REFLECTOMETRY//OPTICAL TIME DOMAIN REFLECTOMETER OTDR
8 11440 FARADAY EFFECT//OPTICAL CURRENT SENSOR//FIBER OPTIC CURRENT SENSOR
9 18475 CROSS PHASE MODULATION//WAVELENGTH DIVISION MULTIPLEXING//FOUR WAVE MIXING
10 9998 NONLINEAR DIRECTIONAL COUPLER//INTERMODAL DISPERSION//SOLITON SWITCHING

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