Classification
006 - Special computer methods
3,515
621 - Applied physics
554
620 - Engineering & allied operations
439
629 - Other branches of engineering
324
003 - Systems
129
004 - Data processing & computer science
87
519 - Probabilities & applied mathematics
79
515 - Analysis
77
005 - Computer programming, programs & data
63
518 - Numerical analysis
41
658 - General management
41
610 - Medicine & health
40
530 - Physics
35
330 - Economics
33
541 - Physical chemistry
32
670 - Manufacturing
32
000 - Computer science, information & general works
24
331 - Labor economics
24
500 - Natural sciences & mathematics
24
690 - Buildings
24
531 - Classical mechanics; solid mechanics
22
600 - Technology
19
510 - Mathematics
18
700 - The arts; fine & decorative arts
17
333 - Economics of land & energy
14
511 - General principles of mathematics
12
624 - Civil engineering
12
660 - Chemical engineering
8
512 - Algebra
7
576 - Genetics & evolution
7
900 - History & geography
7
910 - Geography & travel
7
338 - Production
6
745 - Decorative arts
6
153 - Mental processes & intelligence
5
540 - Chemistry & allied sciences
5
140 - Specific philosophical schools
4
363 - Other social problems & services
4
516 - Geometry
4
534 - Sound & related vibrations
4
551 - Geology, hydrology & meteorology
4
570 - Life sciences; biology
4
720 - Architecture
4
794 - Indoor games of skill
4
001 - Knowledge
3
300 - Social sciences
3
303 - Social processes
3
307 - Communities
3
343 - Military, tax, trade & industrial law
3
384 - Communications; telecommunication
3
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