more standardized ddc list
Cybernetics 3.5
Personal knowledge base 3.54
Complex System 3.7
Chaos Theory 3.75
Digital Philosophy 4.019
Quantum Computing 4.1
Brain–Computer Interface 4.167
Finite-state machine 4.22
Internet of Things 4.6
Tree structure 5.1
Switch statement 5.13
Outliner 5.3
Tree view 5.36
Spreadsheet 5.54
Big Data 5.7
Cybersecurity 5.8
Blockchain 5.82
Artificial Intelligence 6.3
Machine Learning 6.31
Neural Network 6.32
Virtual Reality 6.8
Library classification 25.4
Dewey Decimal Classification 25.431
Metaphysics 110
Cosmology 113
Epistemology 121
Free Will 123
Mind 128
Mind and body 128.2
Quantum Consciousness 129
Psychology 150
Perception 152
Sensory processing 152.1
Cognition 153
Cognitive Science 153.4
Object Permanence 155.413
Conscience 170.42
Ethics 174.2
Anthropologist 301.092
Social psychology 302
Social processes 303
Information society 303.483
Digital divide 303.4833
Futurology 303.49
Hippies 305.568
Ethnography 306.072
Transhumanism 306.46
Urban Planning 307.1216
Environmental Sociology 307.76
Civil rights 323
Economics 330.01
Neuroeconomics 330.019
Distributed Ledger 332.178
Cryptocurrency 332.4
Sustainability 333.7
International economics 338.9
Law 340.1
Digital Rights 342.085
Privacy Law 342.0858
Constitution of the United States 342.73
Smart Contract 346.07
Public Health 362
Surveillance 363.23
Environmentalism 363.7
Computer Crime 364.168
Telecommunication 384.33
Transliteration 419.7
Mathematics 510
Benoit Mandelbrot 510.92
Numbers 511.3
Set Theory 511.52
Geometry 511.6
Groups and algebras 512.2
Homological Algebra 512.5
Fields and Rings 512.55
Commutative rings and algebras 512.64
Geometry and Topology 512.7
Calculus 512.9
Matrices 512.9434
Topology 514
Algebraic topology 514.2
Mapping Class Group of a Surface 514.22
Homology and cohomology sequences 514.23
Manifolds and cell complexes 514.7
Fractal Geometry 514.74
Hausdorff dimension 514.742
Approximations and expansions 514.75
Complex Plane 514.752
Space 515
Algebra and number theory 515.1
Harmonic analysis 515.2433
Geometry 515.3
Nonlinear operations 515.35
Stable manifold 515.39
Functional equations and equations of functions 515.42
Linear and multilinear algebra 515.7
Inner product spaces – Orthogonal and unitary transformations 515.73
Complex Variables 515.785
Euclidean geometries 516
Analytic geometries 516.15
Projective and general non-Euclidean geometries 516.2
Distances 516.22
Algebraic Geometry 516.35
Differential and Riemannian geometries 516.36
Global analysis – analysis on manifolds 516.9
Probability Theory 519.2
Stochastic processes 519.23
Monte Carlo method 519.282
Game Theory 519.3
Statistics 519.5
Correlation Dimension 519.53
Time Series 519.55
Fractal Dimension 519.74
Universe and Astronomy 523
General relativities and gravitation 523.01
Cosmology and Extragalactic Astronomy 523.1
Milky Way 523.112
Dark Matter 523.1126
Early Universe 523.18
Cosmic background radiations 523.19
Black holes 523.8875
Physics 530
Mathematical Physics 530.01
General principles of Physics 530.1
Relativity and Gravitational theory 530.11
Quantum theory and mechanics 530.12
Statistical Physics 530.13
Quantum field theory 530.14
Quantum field theory 530.143
Quantum Mechanics -Field Theories 530.41
Mechanics 531
Gravitation 531.14
Celestial mechanics 531.38
Fluid mechanics 532
Optics and Light 535
Electricity 537
Nuclear and particle physics 539.72
Quantum field theories 539.721
Quarks 539.7212
Hadrons 539.7213
Electrons 539.7214
Leptons 539.7215
Physical Chemistry 541.3
Biological processes and aging 612.68
Neurosciences and Neuropsychology 612.8
Neurotransmitters 612.804
Nervous System 612.82
Cognitive Neuroscience 612.8233
Personal health 613
Massage therapy 615.8515
Cryonics 616.0274
Gene Therapy 616.0277
Neuropsychology 616.89
Neuroprosthetics 617.48
Signal Processing 621.3822
Quantum field theories and special topics 621.39
Robotics 621.9
Neuromarketing 658.8.013
Biotechnology 660.6
Cloning 660.62
Genetic Engineering 660.65
Plastics and polymers 668.1
Control Systems 681.2
Digital Art 776
Television 791.4572
Recreational Mathematics 793.73
Rhetoric and Collections 808.042
Programming and languages 808.066
Speculative fiction 809.38762
English Fiction 823
Genealogy 929.1