Class information for: |
Basic class information |
Hierarchy of classes |
The table includes all classes above and classes immediately below the current class. |
| Cluster id | Level | Cluster label | #P |
|---|---|---|---|
| 23 | 4 | ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON | 393400 |
| 1 | 3 | ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON | 234120 |
| 842 | 2 | GALAXIES JETS//GALAXIES ACTIVE//RADIO CONTINUUM GALAXIES | 11879 |
| 8686 | 1 | ASTROMETRY//REFERENCE SYSTEMS//HIPPARCOS | 1259 |
Terms with highest relevance score |
| rank | Category | termType | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|---|
| 1 | ASTROMETRY | authKW | 2374368 | 37% | 20% | 471 |
| 2 | REFERENCE SYSTEMS | authKW | 2339982 | 17% | 43% | 219 |
| 3 | HIPPARCOS | authKW | 929225 | 4% | 81% | 46 |
| 4 | CATALOGS | authKW | 331971 | 12% | 8% | 157 |
| 5 | PHOTOGRAPHIC ASTROMETRY | authKW | 160199 | 1% | 80% | 8 |
| 6 | PROPER MOTIONS | authKW | 134851 | 3% | 15% | 37 |
| 7 | STELLAR PROPER MOTIONS | authKW | 104297 | 0% | 83% | 5 |
| 8 | NASA IPAC INFRARED SCI ARCH | address | 80099 | 0% | 80% | 4 |
| 9 | RADIO STARS | authKW | 78220 | 0% | 63% | 5 |
| 10 | FUNDAMENTAL STARS AND OTHER OBJECTS | authKW | 75095 | 0% | 100% | 3 |
Web of Science journal categories |
| chi_square_rank | Category | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | Astronomy & Astrophysics | 66255 | 93% | 0% | 1173 |
| 2 | Remote Sensing | 78 | 1% | 0% | 16 |
| 3 | Engineering, Aerospace | 60 | 1% | 0% | 16 |
| 4 | Geochemistry & Geophysics | 1 | 1% | 0% | 13 |
| 5 | Imaging Science & Photographic Technology | 1 | 0% | 0% | 4 |
| 6 | History & Philosophy of Science | 0 | 0% | 0% | 2 |
| 7 | Multidisciplinary Sciences | 0 | 0% | 0% | 4 |
| 8 | Mathematics, Interdisciplinary Applications | -0 | 0% | 0% | 6 |
| 9 | Optics | -0 | 2% | 0% | 19 |
| 10 | Mining & Mineral Processing | -0 | 0% | 0% | 1 |
Address terms |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | NASA IPAC INFRARED SCI ARCH | 80099 | 0% | 80% | 4 |
| 2 | NIKOLAEV ASTRON OBSERV | 75095 | 0% | 100% | 3 |
| 3 | OPT ASTRON JOINT | 75095 | 0% | 100% | 3 |
| 4 | EUROPEAN SPACE TECHNOL ASTROPHYS | 66748 | 0% | 67% | 4 |
| 5 | CENTRO NACL SUPERCOMP | 50063 | 0% | 100% | 2 |
| 6 | EJR QUARTZ BV | 50063 | 0% | 100% | 2 |
| 7 | GRP ESTUDOS ASTRON OV | 50063 | 0% | 100% | 2 |
| 8 | OCA CNRS URA 1360 | 50063 | 0% | 100% | 2 |
| 9 | ESA ESAC | 40046 | 0% | 40% | 4 |
| 10 | ESTEC ASTROPHYS | 39105 | 0% | 31% | 5 |
Journals |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 69973 | 8% | 3% | 101 |
| 2 | ASTRONOMICAL JOURNAL | 67831 | 16% | 1% | 199 |
| 3 | ASTRONOMY & ASTROPHYSICS | 48845 | 25% | 1% | 316 |
| 4 | IAU SYMPOSIA | 29120 | 8% | 1% | 96 |
| 5 | CELESTIAL MECHANICS | 23360 | 2% | 4% | 24 |
| 6 | ASTRONOMISCHE NACHRICHTEN | 12119 | 3% | 1% | 41 |
| 7 | ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS | 8360 | 2% | 1% | 28 |
| 8 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 8228 | 3% | 1% | 42 |
| 9 | KINEMATICS AND PHYSICS OF CELESTIAL BODIES | 7589 | 1% | 3% | 10 |
| 10 | REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA | 7067 | 2% | 1% | 19 |
Author Key Words |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass | LCSH search | Wikipedia search |
|---|---|---|---|---|---|---|---|
| 1 | ASTROMETRY | 2374368 | 37% | 20% | 471 | Search ASTROMETRY | Search ASTROMETRY |
| 2 | REFERENCE SYSTEMS | 2339982 | 17% | 43% | 219 | Search REFERENCE+SYSTEMS | Search REFERENCE+SYSTEMS |
| 3 | HIPPARCOS | 929225 | 4% | 81% | 46 | Search HIPPARCOS | Search HIPPARCOS |
| 4 | CATALOGS | 331971 | 12% | 8% | 157 | Search CATALOGS | Search CATALOGS |
| 5 | PHOTOGRAPHIC ASTROMETRY | 160199 | 1% | 80% | 8 | Search PHOTOGRAPHIC+ASTROMETRY | Search PHOTOGRAPHIC+ASTROMETRY |
| 6 | PROPER MOTIONS | 134851 | 3% | 15% | 37 | Search PROPER+MOTIONS | Search PROPER+MOTIONS |
| 7 | STELLAR PROPER MOTIONS | 104297 | 0% | 83% | 5 | Search STELLAR+PROPER+MOTIONS | Search STELLAR+PROPER+MOTIONS |
| 8 | RADIO STARS | 78220 | 0% | 63% | 5 | Search RADIO+STARS | Search RADIO+STARS |
| 9 | FUNDAMENTAL STARS AND OTHER OBJECTS | 75095 | 0% | 100% | 3 | Search FUNDAMENTAL+STARS+AND+OTHER+OBJECTS | Search FUNDAMENTAL+STARS+AND+OTHER+OBJECTS |
| 10 | STAR CATALOGS | 56320 | 0% | 75% | 3 | Search STAR+CATALOGS | Search STAR+CATALOGS |
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 |