Class information for:
Level 1: MULTIREFERENCE//MULTIREFERENCE PERTURBATION THEORY//COUPLED CLUSTER THEORY

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
1068 2871 52.5 60%


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
5 4 CHEMISTRY, ORGANIC//CHEMISTRY, INORGANIC & NUCLEAR//CHEMISTRY, MULTIDISCIPLINARY 1745167
3 3       PHYSICS, ATOMIC, MOLECULAR & CHEMICAL//JOURNAL OF CHEMICAL PHYSICS//CHEMISTRY, PHYSICAL 183883
1332 2             SLATER TYPE ORBITALS//INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 8380
1068 1                   MULTIREFERENCE//MULTIREFERENCE PERTURBATION THEORY//COUPLED CLUSTER THEORY 2871

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 MULTIREFERENCE authKW 234375 1% 57% 39
2 MULTIREFERENCE PERTURBATION THEORY authKW 184305 1% 67% 26
3 COUPLED CLUSTER THEORY authKW 171291 2% 33% 49
4 SIZE CONSISTENCY authKW 151263 1% 68% 21
5 COUPLED CLUSTER authKW 151008 2% 29% 49
6 COUPLED CLUSTER METHOD authKW 150518 1% 35% 40
7 SIZE EXTENSIVITY authKW 143273 1% 84% 16
8 PHYS CHEM THEORY GRP address 132919 1% 83% 15
9 QUANTUM THEORY PROJECT address 132135 4% 11% 112
10 GWC2 address 115786 0% 78% 14

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 Physics, Atomic, Molecular & Chemical 110680 76% 0% 2189
2 Chemistry, Physical 47700 83% 0% 2378
3 Mathematics, Interdisciplinary Applications 5287 10% 0% 290
4 Chemistry, Multidisciplinary 119 7% 0% 213
5 Optics 75 4% 0% 105
6 Physics, Mathematical 16 1% 0% 40
7 Computer Science, Interdisciplinary Applications 14 1% 0% 37
8 Physics, Multidisciplinary 1 2% 0% 61
9 Computer Science, Hardware & Architecture 0 0% 0% 9
10 Mathematical & Computational Biology -1 0% 0% 7

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 PHYS CHEM THEORY GRP 132919 1% 83% 15
2 QUANTUM THEORY PROJECT 132135 4% 11% 112
3 GWC2 115786 0% 78% 14
4 GUELPH WATERLOO WORK CHEM 74596 2% 14% 52
5 WILLIAM R WILEY ENVIRONM MOL SCI 46408 1% 11% 39
6 RAMAN ATOM MOL OPT SCI 44208 1% 20% 21
7 ELECT STRUCT THEORY GRP 37801 0% 44% 8
8 GUELPH WATERLOO WORK CHEM GWC2 32559 0% 44% 7
9 GWC 29441 0% 46% 6
10 QLE THEORET CHEM 27252 0% 26% 10

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 JOURNAL OF CHEMICAL PHYSICS 112427 33% 1% 950
2 INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY 74381 10% 3% 279
3 THEORETICA CHIMICA ACTA 52776 3% 6% 83
4 CHEMICAL PHYSICS LETTERS 43577 15% 1% 439
5 JOURNAL OF CHEMICAL THEORY AND COMPUTATION 17816 3% 2% 88
6 MOLECULAR PHYSICS 15889 5% 1% 130
7 THEORETICAL CHEMISTRY ACCOUNTS 15645 2% 2% 64
8 ADVANCES IN QUANTUM CHEMISTRY 13853 1% 4% 30
9 JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM 3847 2% 1% 65
10 JOURNAL OF COMPUTATIONAL CHEMISTRY 3443 2% 1% 45

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 MULTIREFERENCE 234375 1% 57% 39 Search MULTIREFERENCE Search MULTIREFERENCE
2 MULTIREFERENCE PERTURBATION THEORY 184305 1% 67% 26 Search MULTIREFERENCE+PERTURBATION+THEORY Search MULTIREFERENCE+PERTURBATION+THEORY
3 COUPLED CLUSTER THEORY 171291 2% 33% 49 Search COUPLED+CLUSTER+THEORY Search COUPLED+CLUSTER+THEORY
4 SIZE CONSISTENCY 151263 1% 68% 21 Search SIZE+CONSISTENCY Search SIZE+CONSISTENCY
5 COUPLED CLUSTER 151008 2% 29% 49 Search COUPLED+CLUSTER Search COUPLED+CLUSTER
6 COUPLED CLUSTER METHOD 150518 1% 35% 40 Search COUPLED+CLUSTER+METHOD Search COUPLED+CLUSTER+METHOD
7 SIZE EXTENSIVITY 143273 1% 84% 16 Search SIZE+EXTENSIVITY Search SIZE+EXTENSIVITY
8 METHOD OF MOMENTS OF COUPLED CLUSTER EQUATIONS 106340 0% 100% 10 Search METHOD+OF+MOMENTS+OF+COUPLED+CLUSTER+EQUATIONS Search METHOD+OF+MOMENTS+OF+COUPLED+CLUSTER+EQUATIONS
9 MULTIREFERENCE COUPLED CLUSTER 85072 0% 100% 8 Search MULTIREFERENCE+COUPLED+CLUSTER Search MULTIREFERENCE+COUPLED+CLUSTER
10 BRILLOUIN WIGNER PERTURBATION THEORY 74438 0% 100% 7 Search BRILLOUIN+WIGNER+PERTURBATION+THEORY Search BRILLOUIN+WIGNER+PERTURBATION+THEORY

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 LYAKH, DI , MUSIAL, M , LOTRICH, VF , BARTLETT, RJ , (2012) MULTIREFERENCE NATURE OF CHEMISTRY: THE COUPLED-CLUSTER VIEW.CHEMICAL REVIEWS. VOL. 112. ISSUE 1. P. 182 -243 344 88% 98
2 SHEN, J , PIECUCH, P , (2012) BIORTHOGONAL MOMENT EXPANSIONS IN COUPLED-CLUSTER THEORY: REVIEW OF KEY CONCEPTS AND MERGING THE RENORMALIZED AND ACTIVE-SPACE COUPLED-CLUSTER METHODS.CHEMICAL PHYSICS. VOL. 401. ISSUE . P. 180 -202 266 96% 17
3 PIECUCH, P , (2010) ACTIVE-SPACE COUPLED-CLUSTER METHODS.MOLECULAR PHYSICS. VOL. 108. ISSUE 21-23. P. 2987 -3015 265 96% 18
4 BARTLETT, RJ , MUSIAL, M , (2007) COUPLED-CLUSTER THEORY IN QUANTUM CHEMISTRY.REVIEWS OF MODERN PHYSICS. VOL. 79. ISSUE 1. P. 291 -352 150 69% 1012
5 LI, XZ , PALDUS, J , (1999) CRITICAL ASSESSMENT OF COUPLED CLUSTER METHOD IN QUANTUM CHEMISTRY.ADVANCES IN CHEMICAL PHYSICS, VOL 110. VOL. 110. ISSUE . P. 1 -175 268 73% 347
6 PIECUCH, P , SHEN, J , (2012) MERGING ACTIVE-SPACE AND RENORMALIZED COUPLED-CLUSTER METHODS VIA THE CC(P;Q) FORMALISM, WITH BENCHMARK CALCULATIONS FOR SINGLET-TRIPLET GAPS IN BIRADICAL SYSTEMS.JOURNAL OF CHEMICAL THEORY AND COMPUTATION. VOL. 8. ISSUE 12. P. 4968 -4988 207 82% 9
7 LIU, WJ , HOFFMANN, MR , (2016) ICI: ITERATIVE CI TOWARD FULL CI.JOURNAL OF CHEMICAL THEORY AND COMPUTATION. VOL. 12. ISSUE 3. P. 1169 -1178 118 85% 6
8 SHEN, J , PIECUCH, P , (2012) COMBINING ACTIVE-SPACE COUPLED-CLUSTER METHODS WITH MOMENT ENERGY CORRECTIONS VIA THE CC(P;Q) METHODOLOGY, WITH BENCHMARK CALCULATIONS FOR BIRADICAL TRANSITION STATES.JOURNAL OF CHEMICAL PHYSICS. VOL. 136. ISSUE 14. P. - 162 87% 6
9 MAO, SN , CHENG, L , LIU, WJ , MUKHERJEE, D , (2012) A SPIN-ADAPTED SIZE-EXTENSIVE STATE-SPECIFIC MULTI-REFERENCE PERTURBATION SCHEMES. I. FORMAL DEVELOPMENTS.JOURNAL OF CHEMICAL PHYSICS. VOL. 136. ISSUE 2. P. - 130 97% 12
10 PIECUCH, P , KOWALSKI, K , PIMIENTA, ISO , MCGUIRE, MJ , (2002) RECENT ADVANCES IN ELECTRONIC STRUCTURE THEORY: METHOD OF MOMENTS OF COUPLED-CLUSTER EQUATIONS AND RENORMALIZED COUPLED-CLUSTER APPROACHES.INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY. VOL. 21. ISSUE 4. P. 527 -655 169 81% 174

Classes with closest relation at Level 1


Rank Class id link
1 24314 LOWDINS PAIRING THEOREM//3D 3D EXCITED STATES//FLOATING SPHERICAL GAUSSIAN ORBITAL
2 15738 CONTRACTED SCHRODINGER EQUATION//NATURAL ORBITAL FUNCTIONAL//REDUCED DENSITY MATRICES
3 4950 HALL ATWATER S CHEM//BASIS SET EXTRAPOLATION//CORRELATION CONSISTENT BASIS SETS
4 21035 ALKALINE EARTH DIMERS//LOCALIZATION TENSOR//TOTAL POSITION SPREAD
5 4566 ELECTRON REPULSION INTEGRALS//DENSITY FITTING//INCREMENTAL SCHEME
6 18589 GROUP CHAIN//ANTISYMMETRIC A PARTICLE STATES//WEYL TABLEAU
7 14962 VALENCE BOND//VALENCE BOND THEORY//CASVB
8 9267 CHIM THEOR PL//GRP CHIM PHYS THEOR STRUCT//JOURNAL OF CHEMICAL THEORY AND COMPUTATION
9 4216 RELATIVISTIC BASIS SETS//CORRELATING FUNCTIONS//RELATIVISTIC EFFECTS
10 2562 CHIM THEOR PL//HYPERPOLARIZABILITY//DIPOLE PROPERTIES

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