| 1 | Medicine | 35 | 1.6K | 457 | 507 |
| 2 | Artificial Intelligence | 37 | 1.5K | 22 | 28 |
| 3 | Optics | 66 | 1.3K | 38 | 52 |
| 4 | Biology | 19 | 968 | 1707 | 1613 |
| 5 | Physics | 43 | 941 | 228 | 947 |
| 6 | Engineering | 39 | 803 | 17 | 25 |
| 7 | Photonics | 12 | 771 | 309 | 187 |
| 8 | Software Engineering | 8 | 697 | 22 | 5 |
| 9 | Wireless Communication Systems | 44 | 634 | 7 | 9 |
| 10 | Detectors | 24 | 579 | 4 | 1 |
| 11 | Science | 32 | 563 | 496 | 2369 |
| 12 | lasers | 35 | 522 | 10 | 60 |
| 13 | Optical Communications | 10 | 504 | 5 | 2 |
| 14 | Information Science | 11 | 481 | 40 | 44 |
| 15 | Quantum electronics | 31 | 463 | 5 | 4 |
| 15 | Optoelectronic devices | 31 | 463 | 1 | 3 |
| 17 | Bioinformatics | 15 | 433 | 53 | 135 |
| 18 | Computer Science | 26 | 417 | 9 | 9 |
| 19 | Image Processing | 10 | 398 | 54 | 36 |
| 20 | Computational Biology | 17 | 370 | 77 | 304 |
| 21 | Biomedical Engineering | 18 | 367 | 100 | 248 |
| 22 | Signal Processing | 14 | 341 | 31 | 23 |
| 23 | software | 2 | 323 | 43 | 19 |
| 24 | Electrical Engineering | 24 | 317 | 39 | 38 |
| 25 | Psychiatry | 2 | 309 | 2441 | 956 |
| 25 | Cross-Cultural Studies | 2 | 309 | 49 | 13 |
| 25 | Asia | 2 | 309 | 901 | 71 |
| 25 | cross-cultural comparison | 2 | 309 | 44 | 11 |
| 29 | Cognitive Science | 3 | 308 | 172 | 73 |
| 30 | Mathematics | 17 | 293 | 692 | 429 |
| 31 | computer networks | 31 | 285 | 14 | 34 |
| 32 | Chromosome mapping | 2 | 280 | 247 | 129 |
| 32 | gene mapping | 2 | 280 | 302 | 182 |
| 34 | management | 1 | 258 | 1593 | 243 |
| 34 | Research | 24 | 258 | 446 | 1475 |
| 36 | Telecommunication | 20 | 241 | 34 | 61 |
| 37 | Microwaves | 20 | 237 | 35 | 22 |
| 38 | Neural circuitry | 7 | 234 | 32 | 33 |
| 39 | Telecommunication Systems | 24 | 233 | 18 | 41 |
| 40 | Genomics | 1 | 228 | 923 | 292 |
| 40 | Technology | 27 | 228 | 138 | 825 |
| 42 | Information Technology | 17 | 224 | 26 | 84 |
| 43 | Photography | 2 | 203 | 205 | 17 |
| 44 | Database Management | 5 | 194 | 7 | 14 |
| 45 | Education | 3 | 182 | 712 | 292 |
| 46 | Requirements Engineering | 1 | 172 | 6 | 2 |
| 47 | Molecular Biology | 6 | 171 | 3882 | 5815 |
| 48 | Computational Intelligence | 7 | 170 | 13 | 19 |
| 49 | Cytology | 4 | 161 | 1810 | 2539 |
| 50 | Multimedia Systems | 19 | 159 | 13 | 25 |
| 51 | Decision making | 6 | 157 | 102 | 135 |
| 52 | Cell Biology | 3 | 153 | 3391 | 3556 |
| 53 | Telecommunications | 11 | 147 | 37 | 56 |
| 54 | Electronics | 11 | 137 | 121 | 186 |
| 55 | Developing countries | 4 | 124 | 168 | 216 |
| 56 | actuators | 3 | 118 | 130 | 135 |
| 56 | transducers | 3 | 118 | 130 | 135 |
| 58 | Cybernetics | 4 | 117 | 54 | 71 |
| 58 | data protection | 5 | 117 | 11 | 9 |
| 60 | Optical materials | 3 | 116 | 3051 | 4575 |
| 61 | Mobile Computing | 9 | 114 | 11 | 24 |
| 62 | Combustion | 6 | 111 | 39 | 95 |
| 63 | Diagnostic Imaging | 2 | 110 | 302 | 269 |
| 63 | Carbon | 1 | 110 | 204 | 144 |
| 65 | Economic Development | 3 | 109 | 147 | 182 |
| 65 | Technological Innovations | 3 | 109 | 400 | 509 |
| 65 | Africa | 3 | 109 | 181 | 79 |
| 68 | Health Information Management | 3 | 105 | 9 | 27 |
| 68 | hazard mitigation | 1 | 105 | 83 | 41 |
| 68 | natural disasters | 1 | 105 | 104 | 60 |
| 71 | Marine Biology | 1 | 104 | 377 | 200 |
| 71 | Oceanography | 1 | 104 | 1330 | 636 |
| 73 | Computer Vision | 7 | 94 | 28 | 103 |
| 74 | Solar Energy | 3 | 92 | 66 | 89 |
| 75 | internet | 9 | 91 | 19 | 55 |
| 75 | genome | 2 | 91 | 281 | 401 |
| 77 | Public Health | 2 | 90 | 2243 | 2060 |
| 78 | Internet of Things | 6 | 87 | 12 | 17 |
| 79 | Research Design | 1 | 86 | 402 | 292 |
| 79 | health services | 1 | 86 | 677 | 223 |
| 81 | Microbiology | 1 | 85 | 4716 | 3089 |
| 81 | Educational Technology | 2 | 85 | 175 | 180 |
| 83 | Data Mining | 7 | 80 | 36 | 243 |
| 83 | silicon | 3 | 80 | 12 | 8 |
| 85 | Renewable Energy Sources | 3 | 74 | 251 | 480 |
| 86 | Nanotechnology | 7 | 69 | 1522 | 4866 |
| 86 | Optoelectronics | 2 | 69 | 33 | 18 |
| 88 | Materials | 4 | 63 | 3274 | 7517 |
| 89 | Manufacturing Processes | 1 | 62 | 451 | 231 |
| 89 | Production Engineering | 1 | 62 | 351 | 127 |
| 91 | Statistical physics | 8 | 58 | 139 | 349 |
| 92 | Health Services Research | 2 | 56 | 496 | 586 |
| 92 | Primary health care | 2 | 56 | 406 | 416 |
| 94 | Biomechanics | 3 | 53 | 135 | 321 |
| 95 | Genetics | 1 | 52 | 2297 | 2349 |
| 96 | Geology | 1 | 49 | 1734 | 1200 |
| 97 | Psychology | 1 | 46 | 5136 | 4038 |
| 97 | Cognition | 1 | 46 | 899 | 711 |
| 99 | Imaging systems | 6 | 44 | 21 | 107 |
| 100 | rehabilitation | 2 | 42 | 288 | 501 |
| 101 | medical education | 1 | 41 | 936 | 838 |
| 102 | Databases | 1 | 39 | 13 | 15 |
| 103 | Medical Technology | 4 | 38 | 87 | 385 |
| 103 | Computer Engineering | 5 | 38 | 8 | 35 |
| 103 | Radio wave propagation | 4 | 38 | 106 | 232 |
| 106 | optical pattern recognition | 1 | 37 | 27 | 7 |
| 107 | Intelligent Transportation Systems | 2 | 36 | 78 | 65 |
| 107 | Earthquake Engineering | 1 | 36 | 431 | 423 |
| 107 | Soil dynamics | 1 | 36 | 20 | 24 |
| 110 | Industrial Engineering | 3 | 35 | 92 | 237 |
| 110 | Mobile Commerce | 5 | 35 | 7 | 19 |
| 110 | Semantic web | 1 | 35 | 8 | 8 |
| 113 | Information Retrieval | 1 | 34 | 96 | 184 |
| 114 | Nanostructures | 3 | 33 | 133 | 389 |
| 115 | Chemistry | 4 | 32 | 6204 | 12748 |
| 116 | Biotechnology | 5 | 31 | 1179 | 5541 |
| 116 | Fuzzy systems | 4 | 31 | 34 | 88 |
| 118 | Astrophysics | 2 | 30 | 716 | 954 |
| 119 | Engineering Mathematics | 2 | 29 | 636 | 976 |
| 119 | Semiconductors | 4 | 29 | 114 | 234 |
| 121 | biomedicine | 1 | 28 | 159 | 245 |
| 122 | Tropical Medicine | 1 | 27 | 1603 | 1363 |
| 122 | Soil ecology | 1 | 27 | 71 | 119 |
| 124 | Human-Computer Interaction | 4 | 24 | 49 | 334 |
| 124 | Technology Assessment | 1 | 24 | 23 | 29 |
| 126 | Information society | 1 | 23 | 12 | 14 |
| 127 | Robotics | 5 | 22 | 105 | 671 |
| 127 | Hydrology | 2 | 22 | 1604 | 3488 |
| 127 | Fluid Mechanics | 2 | 22 | 219 | 444 |
| 127 | Computational Linguistics | 2 | 22 | 55 | 160 |
| 127 | big data | 2 | 22 | 15 | 55 |
| 127 | Condensed Matter | 3 | 22 | 265 | 557 |
| 133 | Neurology | 4 | 21 | 2330 | 9253 |
| 133 | emergency management | 2 | 21 | 62 | 155 |
| 133 | Crisis management | 2 | 21 | 33 | 119 |
| 133 | Microstructure | 1 | 21 | 69 | 65 |
| 137 | Toxicology | 1 | 20 | 3659 | 4946 |
| 137 | Physical Chemistry | 1 | 20 | 571 | 735 |
| 137 | Photochemistry | 1 | 20 | 752 | 1132 |
| 137 | Photobiology | 1 | 20 | 162 | 279 |
| 141 | Materials Science | 1 | 19 | 3447 | 4526 |
| 141 | Solid State Physics | 2 | 19 | 906 | 1347 |
| 141 | Biocompatible Materials | 1 | 19 | 2225 | 3672 |
| 144 | Mechatronics | 1 | 18 | 56 | 70 |
| 144 | Production Planning | 1 | 18 | 11 | 23 |
| 144 | Dynamics | 1 | 18 | 260 | 261 |
| 144 | Remote Sensing | 3 | 18 | 71 | 138 |
| 144 | food technology | 2 | 18 | 1760 | 4597 |
| 144 | Production Control | 1 | 18 | 11 | 23 |
| 150 | Decision Support Systems | 2 | 16 | 10 | 27 |
| 150 | Ubiquitous computing | 2 | 16 | 4 | 8 |
| 152 | Geography | 1 | 15 | 1850 | 3085 |
| 152 | Measurement | 2 | 15 | 69 | 200 |
| 152 | Ocean Engineering | 1 | 15 | 165 | 301 |
| 152 | tomography | 1 | 15 | 22 | 27 |
| 156 | Molecular Genetics | 2 | 14 | 1230 | 4083 |
| 156 | Nanostructured Materials | 1 | 14 | 5617 | 8960 |
| 156 | Library Science | 1 | 14 | 109 | 124 |
| 156 | nanoscience | 1 | 14 | 598 | 1112 |
| 160 | Mathematical Physics | 1 | 13 | 880 | 1034 |
| 160 | Social Networks | 2 | 13 | 13 | 45 |
| 160 | Wireless Communication | 3 | 13 | 11 | 33 |
| 160 | Online social networks | 2 | 13 | 18 | 49 |
| 160 | Access to Information | 1 | 13 | 15 | 39 |
| 160 | Information dissemination | 1 | 13 | 15 | 39 |
| 166 | Brain | 3 | 12 | 299 | 1541 |
| 167 | Automation | 3 | 11 | 67 | 344 |
| 167 | Critical Care | 1 | 11 | 525 | 960 |
| 167 | Critical Care Medicine | 1 | 11 | 348 | 664 |
| 167 | Quality Control | 1 | 11 | 834 | 1295 |
| 167 | Randomized Controlled Trials | 1 | 11 | 200 | 375 |
| 167 | Food | 1 | 11 | 2629 | 5208 |
| 167 | foods | 1 | 11 | 153 | 282 |
| 167 | System design | 1 | 11 | 20 | 27 |
| 175 | Geriatrics | 1 | 10 | 3500 | 5775 |
| 175 | Systems Engineering | 2 | 10 | 233 | 474 |
| 175 | Systems Biology | 2 | 10 | 258 | 870 |
| 175 | Quality Assurance | 2 | 10 | 22 | 76 |
| 175 | Smoking | 1 | 10 | 206 | 394 |
| 175 | Malaria | 1 | 10 | 118 | 226 |
| 175 | Plant diseases | 1 | 10 | 559 | 955 |
| 175 | Aging | 1 | 10 | 1137 | 1912 |
| 183 | Endocrinology | 1 | 9 | 1310 | 2484 |
| 183 | Stochastic Processes | 1 | 9 | 302 | 386 |
| 183 | Human Rights | 1 | 9 | 137 | 175 |
| 183 | Statistical Mechanics | 2 | 9 | 69 | 147 |
| 183 | Diabetes mellitus | 1 | 9 | 1429 | 3092 |
| 183 | civil rights | 1 | 9 | 94 | 120 |
| 183 | Metabolic diseases | 1 | 9 | 1455 | 3186 |
| 183 | Political Participation | 1 | 9 | 21 | 53 |
| 183 | Citizenship | 1 | 9 | 10 | 26 |
| 183 | System analysis | 4 | 9 | 101 | 773 |
| 183 | Diabetes | 1 | 9 | 2183 | 4332 |
| 194 | Histology | 1 | 8 | 1007 | 2651 |
| 194 | Computational Chemistry | 1 | 8 | 466 | 881 |
| 194 | Information Systems | 1 | 8 | 159 | 327 |
| 194 | Social Psychology | 1 | 8 | 1447 | 2521 |
| 194 | Signal Transduction | 1 | 8 | 406 | 1063 |
| 194 | Cytogenetics | 1 | 8 | 696 | 1785 |
| 194 | microwave antennas | 1 | 8 | 97 | 122 |
| 194 | Gene expression | 1 | 8 | 214 | 559 |
| 194 | Electrochemistry | 2 | 8 | 1458 | 3589 |
| 194 | Cell division | 1 | 8 | 238 | 648 |
| 194 | human behavior | 1 | 8 | 776 | 1784 |
| 194 | radar | 1 | 8 | 82 | 93 |
| 194 | Sonar | 1 | 8 | 82 | 92 |
| 194 | Navigation | 1 | 8 | 108 | 159 |
| 194 | enzymes | 1 | 8 | 223 | 496 |
| 194 | Behavior | 1 | 8 | 1698 | 3429 |
| 194 | Genes | 1 | 8 | 356 | 903 |
| 211 | Biophysics | 1 | 7 | 5026 | 9092 |
| 211 | Gender Studies | 1 | 7 | 66 | 148 |
| 211 | Queer Studies | 1 | 7 | 35 | 100 |
| 211 | Histochemistry | 1 | 7 | 257 | 593 |
| 211 | Functional equations | 1 | 7 | 7 | 11 |
| 211 | Data Warehousing | 1 | 7 | 3 | 5 |
| 211 | homosexuality | 1 | 7 | 74 | 164 |
| 211 | color | 1 | 7 | 238 | 473 |
| 211 | mathematical analysis | 1 | 7 | 400 | 533 |
| 220 | Bioengineering | 1 | 6 | 2220 | 5115 |
| 220 | Computer Graphics | 1 | 6 | 329 | 684 |
| 220 | Molecular evolution | 1 | 6 | 389 | 969 |
| 220 | biological evolution | 1 | 6 | 1146 | 2612 |
| 220 | Phylogeny | 1 | 6 | 141 | 358 |
| 225 | Polymers | 1 | 5 | 5467 | 9026 |
| 225 | Numerical Analysis | 1 | 5 | 734 | 1528 |
| 225 | Virtual reality | 1 | 5 | 50 | 200 |
| 225 | Nonlinear Dynamics | 1 | 5 | 269 | 541 |
| 225 | Plastics | 1 | 5 | 1265 | 2748 |
| 230 | Analytical Chemistry | 1 | 4 | 1610 | 3404 |
| 230 | Metallurgy | 1 | 4 | 776 | 1329 |
| 230 | Environmental Health | 1 | 4 | 1527 | 3501 |
| 230 | Analytical Biochemistry | 1 | 4 | 270 | 737 |
| 230 | Environmental monitoring | 1 | 4 | 1151 | 2693 |
| 230 | preventive medicine | 1 | 4 | 348 | 807 |
| 230 | Environmental Geochemistry | 1 | 4 | 53 | 131 |
| 230 | Intelligent Control Systems | 2 | 4 | 54 | 262 |
| 230 | Probiotics | 1 | 4 | 17 | 55 |
| 230 | Minerals | 1 | 4 | 67 | 166 |
| 230 | World Wide Web | 4 | 4 | 7 | 40 |
| 230 | India | 1 | 4 | 240 | 346 |
| 230 | Metals | 1 | 4 | 701 | 1268 |
| 243 | Social Sciences | 1 | 3 | 1539 | 3151 |
| 243 | Operations Research | 1 | 3 | 557 | 1345 |
| 243 | sustainability | 1 | 3 | 100 | 261 |
| 243 | Interfaces | 2 | 3 | 8 | 62 |
| 243 | drug abuse | 1 | 3 | 182 | 508 |
| 243 | Digital Audio Broadcasting | 1 | 3 | 2 | 5 |
| 249 | Economics | 1 | 2 | 2052 | 3538 |
| 249 | Neonatal Nursing | 1 | 2 | 31 | 77 |
| 249 | Control Theory | 1 | 2 | 1540 | 2992 |
| 249 | Neonatal intensive care | 1 | 2 | 19 | 53 |
| 249 | Neurotransmitters | 1 | 2 | 121 | 153 |
| 249 | dietary supplements | 1 | 2 | 80 | 259 |
| 249 | East Asia | 1 | 2 | 61 | 179 |
| 249 | finance | 1 | 2 | 506 | 995 |
| 257 | Systems Theory | 1 | 1 | 100 | 465 |
| 257 | Algebra | 2 | 1 | 45 | 167 |
| 257 | Geophysics | 2 | 1 | 3112 | 9429 |
| 257 | Solid State Chemistry | 1 | 1 | 1228 | 2485 |
| 257 | Expert Systems | 1 | 1 | 11 | 49 |
| 257 | Simulation Methods | 1 | 1 | 367 | 1047 |
| 257 | Knowledge management | 1 | 1 | 33 | 85 |
| 257 | Cardiovascular diseases | 1 | 1 | 273 | 907 |
| 265 | Petroleum Engineering | 1 | 0 | 80 | 251 |
| 265 | Mathematics Education | 1 | 0 | 44 | 140 |
| 265 | Geographic information systems | 2 | 0 | 60 | 298 |
| 265 | Sensor Networks | 2 | 0 | 8 | 36 |
| 265 | Action Research | 1 | 0 | 14 | 63 |
| 265 | Japan | 8 | 0 | 86 | 2120 |
| 265 | ground penetrating radar | 1 | 0 | 2 | 9 |
| 265 | international cooperation | 1 | 0 | 156 | 488 |
