Class information for:
Level 1: SPARSE OPTICAL SYNTHETIC APERTURE//PISTON ERROR//LANDING SITE CERTIFICATION

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
19449 440 14.7 38%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
2061 4843 ATMOSPHERIC EFFECTS//SITE TESTING//INSTRUMENTATION ADAPTIVE OPTICS

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 SPARSE OPTICAL SYNTHETIC APERTURE Author keyword 6 71% 1% 5
2 PISTON ERROR Author keyword 3 43% 1% 6
3 LANDING SITE CERTIFICATION Author keyword 2 67% 0% 2
4 OPTICAL SPARSE ARRAY Author keyword 2 67% 0% 2
5 SPARSE APERTURE Author keyword 2 26% 2% 7
6 MIRROR DEFORMATIONS Author keyword 2 50% 1% 3
7 SYNTHETIC APERTURE OPTICS Author keyword 2 50% 1% 3
8 SPACE TELESCOPE COST MODEL Author keyword 2 43% 1% 3
9 CO PHASING DETECTION Author keyword 1 100% 0% 2
10 OPTICAL DILUTE SUBAPERTURE ARRAY Author keyword 1 100% 0% 2

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class		 LCSH search Wikipedia search
1 SPARSE OPTICAL SYNTHETIC APERTURE 6 71% 1% 5 Search SPARSE+OPTICAL+SYNTHETIC+APERTURE Search SPARSE+OPTICAL+SYNTHETIC+APERTURE
2 PISTON ERROR 3 43% 1% 6 Search PISTON+ERROR Search PISTON+ERROR
3 LANDING SITE CERTIFICATION 2 67% 0% 2 Search LANDING+SITE+CERTIFICATION Search LANDING+SITE+CERTIFICATION
4 OPTICAL SPARSE ARRAY 2 67% 0% 2 Search OPTICAL+SPARSE+ARRAY Search OPTICAL+SPARSE+ARRAY
5 SPARSE APERTURE 2 26% 2% 7 Search SPARSE+APERTURE Search SPARSE+APERTURE
6 MIRROR DEFORMATIONS 2 50% 1% 3 Search MIRROR+DEFORMATIONS Search MIRROR+DEFORMATIONS
7 SYNTHETIC APERTURE OPTICS 2 50% 1% 3 Search SYNTHETIC+APERTURE+OPTICS Search SYNTHETIC+APERTURE+OPTICS
8 SPACE TELESCOPE COST MODEL 2 43% 1% 3 Search SPACE+TELESCOPE+COST+MODEL Search SPACE+TELESCOPE+COST+MODEL
9 CO PHASING DETECTION 1 100% 0% 2 Search CO+PHASING+DETECTION Search CO+PHASING+DETECTION
10 OPTICAL DILUTE SUBAPERTURE ARRAY 1 100% 0% 2 Search OPTICAL+DILUTE+SUBAPERTURE+ARRAY Search OPTICAL+DILUTE+SUBAPERTURE+ARRAY

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 KECK TELESCOPES 13 41% 5% 24
2 BAND PHASING ALGORITHM 11 56% 3% 14
3 MIRROR SEGMENTS 5 29% 3% 14
4 CONFOCAL PROLATE SPHEROIDS 4 75% 1% 3
5 SEGMENTED MIRROR TELESCOPES 1 38% 1% 3
6 CORRECTOR PLATES 1 100% 0% 2
7 TECHNOLOGY TELESCOPE 1 50% 0% 2
8 ACTIVE OPTICS 1 19% 1% 5
9 CELT 1 40% 0% 2
10 SEGMENTED MIRRORS 1 27% 1% 3

Journals

Reviews


Title Publ. year Cit. Active
references		 % act. ref.
to same field
Active optics in modern large optical telescopes 2002 8 16 56%
Measurement of alignment parameters in spherical segmented-mirrors using novel algorithm and advanced phase unwrapping method 2010 2 7 43%
LIGHTWEIGHT TELESCOPES FOR LUNAR OBSERVATORIES 1994 0 1 100%
Progress in ground-based optical telescopes 1996 3 5 60%
Ground-based and space-based adaptive optical telescopes 1998 2 19 63%
SYNTHETIC APERTURES - AN OVERVIEW 1984 0 3 100%
VERY LARGE GROUND-BASED TELESCOPES FOR OPTICAL AND IR ASTRONOMY 1982 7 4 25%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 ASTRON OPT TECHNOL 1 15% 1.1% 5
2 CNRS 285 1 50% 0.2% 1
3 IL ULTR RECIS SUR ES 1 50% 0.2% 1
4 INFORMAT DECIS SYST GRP 1 50% 0.2% 1
5 OPT ENGN 411 1 50% 0.2% 1
6 SNJM 1 50% 0.2% 1
7 ACT STRUCT 1 12% 1.1% 5
8 EO COMBAT ID BRANCH 0 33% 0.2% 1
9 LOOM 0 33% 0.2% 1
10 NIAOT 0 33% 0.2% 1

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000180208 INSTRUMENTATION HIGH ANGULAR RESOLUTION//INSTRUMENTATION HIGH ANGULAR RESOLUTION//EQUIPE OPT
2 0.0000128205 SKEW RAY TRACING//COMMUN GROUND SYST SECT//RONCHI TEST
3 0.0000120505 SITE TESTING//ATMOSPHERIC EFFECTS//AD T OPT
4 0.0000114421 LIQUID MIRRORS//MASSIVE CONTROL//METAL LIQUID LIKE FILMS
5 0.0000099928 SPACE OPT//RADIAL SHEARING//SURFACE PROFILOMETER
6 0.0000097262 FIBER SPECTRA//MICROWAVE DIFFRACTION//INSTRUMENTATION SPECTROGRAPHS
7 0.0000090551 HYDRODYNAMIC POLISHING PROCESS//ULTR RECIS SCI TECHNOL//JOINT OPTOMECHATRON DESIGN ENGN
8 0.0000079596 STELLAR SPECKLE INTERFEROMETRY//ADV DEV PROGRAM//ATMOSPHERIC EFFECTS TECHNIQUES
9 0.0000076938 STANDARD REFERENCE DATA//OPTICAL HETERODYNE INTERFEROMETER//CHAINS OF LINKED VIBRATORS
10 0.0000072002 COHERENT BEAM COMBINATION//COHERENT COMBINING//OPTICELECT SCI ENGN