Class information for:
Level 1: INVERSE Q FILTERING//Q ESTIMATION//GAIN LIMIT

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
21353 422 20.3 39%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
16 4 ENGINEERING, CIVIL//CONSTRUCTION & BUILDING TECHNOLOGY//MECHANICS 627508
353 3       GEOPHYSICS//GEOPHYSICAL PROSPECTING//GEOCHEMISTRY & GEOPHYSICS 35074
494 2             GEOPHYSICS//GEOPHYSICAL PROSPECTING//GEOCHEMISTRY & GEOPHYSICS 15397
21353 1                   INVERSE Q FILTERING//Q ESTIMATION//GAIN LIMIT 422

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 INVERSE Q FILTERING authKW 1205956 5% 83% 20
2 Q ESTIMATION authKW 506504 2% 100% 7
3 GAIN LIMIT authKW 289431 1% 100% 4
4 ZERO OFFSET VSP authKW 226114 1% 63% 5
5 ERVOIR GEOPHYS address 207242 3% 22% 13
6 WAVE INFORMAT address 175065 3% 17% 14
7 GEOPHYSICS journal 172867 32% 2% 133
8 GABOR DECONVOLUTION authKW 162803 1% 75% 3
9 ATTENUATION COMPENSATION authKW 146511 2% 23% 9
10 NEAR SURFACE ABSORPTION authKW 144716 0% 100% 2

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Geochemistry & Geophysics 29407 73% 0% 307
2 Engineering, Petroleum 1093 5% 0% 22
3 Mining & Mineral Processing 868 5% 0% 20
4 Geosciences, Multidisciplinary 754 16% 0% 69
5 Engineering, Geological 121 2% 0% 9
6 Energy & Fuels 87 5% 0% 23
7 Remote Sensing 35 1% 0% 6
8 Acoustics 29 2% 0% 8
9 Imaging Science & Photographic Technology 21 1% 0% 5
10 Engineering, Chemical 6 3% 0% 13

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ERVOIR GEOPHYS 207242 3% 22% 13
2 WAVE INFORMAT 175065 3% 17% 14
3 MINIST EDUC GEOPHYS 96476 0% 67% 2
4 BGP 85744 2% 15% 8
5 ENGN OFFSHORE OIL EXPLORAT 82442 2% 16% 7
6 DAGANG OILFIELD 72358 0% 100% 1
7 E D 72358 0% 100% 1
8 EARTH EXPLORAT INFORMAT TECHMINIST EDU 72358 0% 100% 1
9 EARTH PLANETARY SCI EARTH OURCES 72358 0% 100% 1
10 ENGN EXPLORAT LOW PERMEABIL OIL GAS FIEL 72358 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 GEOPHYSICS 172867 32% 2% 133
2 GEOPHYSICAL PROSPECTING 51415 10% 2% 41
3 JOURNAL OF GEOPHYSICS AND ENGINEERING 39257 5% 3% 21
4 APPLIED GEOPHYSICS 33889 4% 3% 15
5 REVUE DE L INSTITUT FRANCAIS DU PETROLE 12362 3% 2% 11
6 JOURNAL OF SEISMIC EXPLORATION 12167 2% 2% 9
7 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 8885 6% 1% 24
8 JOURNAL OF APPLIED GEOPHYSICS 7432 4% 1% 15
9 GEOEXPLORATION 2954 1% 1% 3
10 JOURNAL OF GEOPHYSICS-ZEITSCHRIFT FUR GEOPHYSIK 1703 1% 1% 3

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 INVERSE Q FILTERING 1205956 5% 83% 20 Search INVERSE+Q+FILTERING Search INVERSE+Q+FILTERING
2 Q ESTIMATION 506504 2% 100% 7 Search Q+ESTIMATION Search Q+ESTIMATION
3 GAIN LIMIT 289431 1% 100% 4 Search GAIN+LIMIT Search GAIN+LIMIT
4 ZERO OFFSET VSP 226114 1% 63% 5 Search ZERO+OFFSET+VSP Search ZERO+OFFSET+VSP
5 GABOR DECONVOLUTION 162803 1% 75% 3 Search GABOR+DECONVOLUTION Search GABOR+DECONVOLUTION
6 ATTENUATION COMPENSATION 146511 2% 23% 9 Search ATTENUATION+COMPENSATION Search ATTENUATION+COMPENSATION
7 NEAR SURFACE ABSORPTION 144716 0% 100% 2 Search NEAR+SURFACE+ABSORPTION Search NEAR+SURFACE+ABSORPTION
8 NON STATIONARY COMBINATION 144716 0% 100% 2 Search NON+STATIONARY+COMBINATION Search NON+STATIONARY+COMBINATION
9 SPECTRAL RATIO METHOD 139143 1% 38% 5 Search SPECTRAL+RATIO+METHOD Search SPECTRAL+RATIO+METHOD
10 CENTROID FREQUENCY 128632 1% 44% 4 Search CENTROID+FREQUENCY Search CENTROID+FREQUENCY

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.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 CHAI, XT , WANG, SX , WEI, JX , LI, JN , YIN, HJ , (2016) REFLECTIVITY INVERSION FOR ATTENUATED SEISMIC DATA: PHYSICAL MODELING AND FIELD DATA EXPERIMENTS.GEOPHYSICS. VOL. 81. ISSUE 1. P. T11 -T24 27 64% 3
2 LI, GF , LIU, Y , ZHENG, H , HUANG, W , (2015) ABSORPTION DECOMPOSITION AND COMPENSATION VIA A TWO-STEP SCHEME.GEOPHYSICS. VOL. 80. ISSUE 6. P. V145 -V155 24 83% 2
3 WANG, YH , (2014) STABLE Q ANALYSIS ON VERTICAL SEISMIC PROFILING DATA.GEOPHYSICS. VOL. 79. ISSUE 4. P. D217 -D225 18 82% 8
4 ZHANG, GL , WANG, XM , HE, ZH , (2015) A STABLE AND SELF-ADAPTIVE APPROACH FOR INVERSE Q-FILTER.JOURNAL OF APPLIED GEOPHYSICS. VOL. 116. ISSUE . P. 236 -246 16 94% 1
5 LI, FY , ZHOU, HL , JIANG, N , BI, JX , MARFURT, KJ , (2015) Q ESTIMATION FROM REFLECTION SEISMIC DATA FOR HYDROCARBON DETECTION USING A MODIFIED FREQUENCY SHIFT METHOD.JOURNAL OF GEOPHYSICS AND ENGINEERING. VOL. 12. ISSUE 4. P. 577 -586 18 82% 2
6 LI, CH , LIU, XW , (2015) A NEW METHOD FOR INTERVAL Q-FACTOR INVERSION FROM SEISMIC REFLECTION DATA.GEOPHYSICS. VOL. 80. ISSUE 6. P. R361 -R373 18 82% 1
7 ZHANG, GL , HE, ZH , WANG, XM , ZHANG, JJ , ZHANG, YB , LI, F , (2014) SEISMIC WAVE DISPERSION EFFECTS AND INVERSE Q-FILTER PHASE COMPENSATION.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION. VOL. 57. ISSUE 5. P. 1655 -1663 15 100% 2
8 LI, JN , WANG, SX , YANG, DF , DONG, CH , TAO, YH , ZHOU, YT , (2016) AN IMPROVED Q ESTIMATION APPROACH: THE WEIGHTED CENTROID FREQUENCY SHIFT METHOD.JOURNAL OF GEOPHYSICS AND ENGINEERING. VOL. 13. ISSUE 3. P. 399 -411 19 73% 0
9 ZHANG, GL , WANG, XM , HE, ZH , YU, G , LI, YP , LIU, W , (2014) IMPACT OF Q VALUE AND GAIN-LIMIT TO THE RESOLUTION OF INVERSE Q FILTERING.JOURNAL OF GEOPHYSICS AND ENGINEERING. VOL. 11. ISSUE 4. P. - 16 89% 0
10 WANG, ZJ , CAO, SY , ZHANG, HR , QU, YM , YUAN, D , YANG, JH , SHAO, GM , (2015) ESTIMATION OF QUALITY FACTORS BY ENERGY RATIO METHOD.APPLIED GEOPHYSICS. VOL. 12. ISSUE 1. P. 86 -92 15 88% 2

Classes with closest relation at Level 1


Rank Class id link
1 16529 ACOUSTIC LOGGING//COSL UPC ALLIED BOREHOLE ACOUST//GEOPHYSICS
2 7195 GEOPHYSICS//AVO//AVO INVERSION
3 4628 ROCK PHYSICS//GEOPHYSICS//BISQ MODEL
4 6184 GEOPHYSICS//MULTIPLE ATTENUATION//SEISM IMAGING MODELING
5 22685 VIBROSEIS//GEOPHYSICAL PROSPECTING//SEISMIC VIBRATOR
6 32549 SURFACE RAYS//CRITICAL RAYS//DELTA SHAPED TIME DEPENDENCE
7 18395 GEOPHYSICS//STATIC CORRECTION//GRM
8 2236 GEOPHYSICS//SHEAR WAVE SPLITTING//EDINBURGH ANISOTROPY PROJECT
9 27124 MTA ME PL GEOSCI GRP//COMBINED GEOELECTRIC INVERSION//FACTOR LOG
10 36219 ZEITSCHRIFT FUR SEMIOTIK//151 WELLINGTON RD//CATEGORIAL STRUCTURE

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