Classification
005 - Computer programming, programs & data
483
004 - Data processing & computer science
163
003 - Systems
139
621 - Applied physics
120
006 - Special computer methods
83
040 - [Unassigned]
50
620 - Engineering & allied operations
22
519 - Probabilities & applied mathematics
20
512 - Algebra
19
530 - Physics
15
500 - Natural sciences & mathematics
14
511 - General principles of mathematics
14
000 - Computer science, information & general works
10
381 - Commerce
10
518 - Numerical analysis
10
384 - Communications; telecommunication
8
670 - Manufacturing
8
371 - Schools & their activities; special education
7
331 - Labor economics
6
610 - Medicine & health
6
303 - Social processes
5
515 - Analysis
5
600 - Technology
5
160 - Logic
4
330 - Economics
4
510 - Mathematics
4
536 - Heat
4
658 - General management
4
745 - Decorative arts
4
120 - Epistemology, causation & humankind
3
364 - Criminology
3
370 - Education
3
534 - Sound & related vibrations
3
025 - Library operations
2
323 - Civil & political rights
2
332 - Financial economics
2
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
516 - Geometry
2
576 - Genetics & evolution
2
612 - Human physiology
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
001 - Knowledge
1
020 - Library & information sciences
1
100 - Philosophy & psychology
1
300 - Social sciences
1
327 - International relations
1
338 - Production
1
340 - Law
1
more ...