Class information for:
Level 1: OPTICAL ENCRYPTION//OPTICAL IMAGE ENCRYPTION//DOUBLE RANDOM PHASE ENCODING

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
12 4 COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, INFORMATION SYSTEMS//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE 1181119
667 3       FRACTIONAL FOURIER TRANSFORM//FAULT DIAGNOSIS//MECHANICAL SYSTEMS AND SIGNAL PROCESSING 9652
1428 2             FRACTIONAL FOURIER TRANSFORM//FAULT DIAGNOSIS//MECHANICAL SYSTEMS AND SIGNAL PROCESSING 8175
9173 1                   OPTICAL ENCRYPTION//OPTICAL IMAGE ENCRYPTION//DOUBLE RANDOM PHASE ENCODING 1211

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPTICAL ENCRYPTION authKW 2387490 8% 92% 100
2 OPTICAL IMAGE ENCRYPTION authKW 1197096 4% 100% 46
3 DOUBLE RANDOM PHASE ENCODING authKW 981991 4% 88% 43
4 OPTICAL SECURITY authKW 913726 4% 66% 53
5 GYRATOR TRANSFORM authKW 873908 3% 88% 38
6 IMAGE ENCRYPTION authKW 675720 10% 21% 124
7 GRP OPT FOTON address 599699 3% 59% 39
8 UID OPTIMO address 521886 3% 53% 38
9 OPTICAL SECURITY AND ENCRYPTION authKW 449831 2% 79% 22
10 RANDOM PHASE ENCODING authKW 444072 2% 74% 23

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Optics 58210 90% 0% 1086
2 Physics, Applied 53 8% 0% 91
3 Engineering, Electrical & Electronic 28 6% 0% 69
4 Physics, Multidisciplinary 27 4% 0% 48
5 Computer Science, Information Systems 12 1% 0% 18
6 Imaging Science & Photographic Technology 5 0% 0% 6
7 Computer Science, Software Engineering 5 1% 0% 12
8 Computer Science, Theory & Methods 4 1% 0% 15
9 Mathematics, Interdisciplinary Applications 1 1% 0% 8
10 Computer Science, Artificial Intelligence -0 1% 0% 8

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 GRP OPT FOTON 599699 3% 59% 39
2 UID OPTIMO 521886 3% 53% 38
3 AUTOMAT MEASUREMENT CONTROL ENGN 214107 2% 34% 24
4 PHOTON INFORMAT 178439 1% 57% 12
5 INT AUTOMOT TECHNOL 156143 0% 100% 6
6 AUTOMAT MEASUREMENT CONTROL 147993 2% 25% 23
7 UIDET OPTIMO 141682 1% 78% 7
8 INVEST OPT 139151 3% 15% 35
9 INVEST OPT CONICET LA PLATA CIC 130109 1% 50% 10
10 L BISEN 108421 1% 42% 10

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OPTICS AND LASERS IN ENGINEERING 87303 9% 3% 109
2 OPTICS COMMUNICATIONS 51763 19% 1% 229
3 JOURNAL OF OPTICS 31757 5% 2% 56
4 APPLIED OPTICS 19176 13% 0% 163
5 OPTICAL ENGINEERING 15946 8% 1% 94
6 OPTICS AND LASER TECHNOLOGY 15445 4% 1% 53
7 JOURNAL OF THE OPTICAL SOCIETY OF KOREA 14673 2% 3% 21
8 OPTIK 9343 5% 1% 64
9 OPTICS LETTERS 4905 6% 0% 76
10 JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS 4816 2% 1% 20

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 OPTICAL ENCRYPTION 2387490 8% 92% 100 Search OPTICAL+ENCRYPTION Search OPTICAL+ENCRYPTION
2 OPTICAL IMAGE ENCRYPTION 1197096 4% 100% 46 Search OPTICAL+IMAGE+ENCRYPTION Search OPTICAL+IMAGE+ENCRYPTION
3 DOUBLE RANDOM PHASE ENCODING 981991 4% 88% 43 Search DOUBLE+RANDOM+PHASE+ENCODING Search DOUBLE+RANDOM+PHASE+ENCODING
4 OPTICAL SECURITY 913726 4% 66% 53 Search OPTICAL+SECURITY Search OPTICAL+SECURITY
5 GYRATOR TRANSFORM 873908 3% 88% 38 Search GYRATOR+TRANSFORM Search GYRATOR+TRANSFORM
6 IMAGE ENCRYPTION 675720 10% 21% 124 Search IMAGE+ENCRYPTION Search IMAGE+ENCRYPTION
7 OPTICAL SECURITY AND ENCRYPTION 449831 2% 79% 22 Search OPTICAL+SECURITY+AND+ENCRYPTION Search OPTICAL+SECURITY+AND+ENCRYPTION
8 RANDOM PHASE ENCODING 444072 2% 74% 23 Search RANDOM+PHASE+ENCODING Search RANDOM+PHASE+ENCODING
9 DECRYPTION 424831 3% 41% 40 Search DECRYPTION Search DECRYPTION
10 OPTICAL INFORMATION SECURITY 416381 1% 100% 16 Search OPTICAL+INFORMATION+SECURITY Search OPTICAL+INFORMATION+SECURITY

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 10227 FRACTIONAL FOURIER TRANSFORM//LINEAR CANONICAL TRANSFORM//DISCRETE FRACTIONAL FOURIER TRANSFORM
2 4851 IMAGE ENCRYPTION//CHOSEN PLAINTEXT ATTACK//SELECTIVE ENCRYPTION
3 30532 DOT MATRIX HOLOGRAM//BARCODE RECOGNITION//BAR CODE DECODING
4 12393 GHOST IMAGING//COLD ATOM PHYS CAS//ELECT INFORMAT TECHNOL SPACE SYST
5 1407 DIGITAL HOLOGRAPHY//DIGITAL HOLOGRAPHIC MICROSCOPY//QUANTITAT LIGHT IMAGING
6 3843 JOINT TRANSFORM CORRELATOR//OPTICAL PATTERN RECOGNITION//SYNTHETIC DISCRIMINANT FUNCTION
7 36924 QR BARCODE//GR H DESIGN IMAGE PROC//INAUDIBLE FREQUENCY
8 4500 PHOTOPOLYMER//HOLOGRAPHIC DATA STORAGE//IND ENGN OPT
9 4005 PTYCHOGRAPHY//PHASE RETRIEVAL//COHERENT DIFFRACTIVE IMAGING
10 997 DIGITAL WATERMARKING//WATERMARKING//IMAGE WATERMARKING

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