Class information for:
Level 1: NONNEGATIVE MATRIX FACTORIZATION//NONNEGATIVE MATRIX FACTORIZATION NMF//CONCEPT FACTORIZATION

Basic class information
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
4 4 PSYCHIATRY//PSYCHOLOGY, CLINICAL//PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH 1867560
505 3       PSYCHOLOGY, MATHEMATICAL//APPLIED PSYCHOLOGICAL MEASUREMENT//PSYCHOMETRIKA 22649
2365 2             BLIND SOURCE SEPARATION//BLIND SOURCE SEPARATION BSS//NONNEGATIVE MATRIX FACTORIZATION 4589
15037 1                   NONNEGATIVE MATRIX FACTORIZATION//NONNEGATIVE MATRIX FACTORIZATION NMF//CONCEPT FACTORIZATION 762

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 NONNEGATIVE MATRIX FACTORIZATION authKW 4208434 33% 40% 255
2 NONNEGATIVE MATRIX FACTORIZATION NMF authKW 934369 9% 35% 65
3 CONCEPT FACTORIZATION authKW 537670 2% 100% 13
4 NMF authKW 523683 4% 38% 33
5 MULTIPLICATIVE UPDATES authKW 352917 2% 53% 16
6 ALTERNATING NONNEGATIVE LEAST SQUARES authKW 124078 0% 100% 3
7 BARS PROBLEM authKW 124078 0% 100% 3
8 DUAL GRAPH REGULARIZED authKW 124078 0% 100% 3
9 NNMF authKW 124078 0% 100% 3
10 ON LINE NMF authKW 124078 0% 100% 3

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Computer Science, Artificial Intelligence 23256 46% 0% 349
2 Engineering, Electrical & Electronic 2355 34% 0% 257
3 Computer Science, Information Systems 1204 11% 0% 83
4 Mathematical & Computational Biology 885 7% 0% 50
5 Computer Science, Theory & Methods 822 10% 0% 73
6 Computer Science, Hardware & Architecture 476 5% 0% 36
7 Computer Science, Cybernetics 305 2% 0% 15
8 Computer Science, Software Engineering 293 5% 0% 38
9 Automation & Control Systems 272 4% 0% 33
10 Biochemical Research Methods 221 7% 0% 50

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ADV BRAIN SIGNAL PROC 77634 3% 9% 20
2 MATH OPERAT 71293 1% 17% 10
3 ZHEJIANG PROV SERV ROBOT 53320 1% 18% 7
4 ARQ TEC COMP 41359 0% 100% 1
5 CGSTAT 41359 0% 100% 1
6 CMB IBI 41359 0% 100% 1
7 COGNIT SCIRNCE 41359 0% 100% 1
8 COMMUN JOURNAL 41359 0% 100% 1
9 COMPUTAT NEUROSYST 41359 0% 100% 1
10 DATC ESTII 41359 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 NEUROCOMPUTING 14997 8% 1% 61
2 JOURNAL OF MACHINE LEARNING RESEARCH 10110 3% 1% 20
3 IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS 8598 2% 1% 16
4 NEURAL COMPUTATION 5148 2% 1% 18
5 IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING 2869 1% 1% 7
6 IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 2559 2% 0% 14
7 PATTERN RECOGNITION LETTERS 2489 2% 0% 19
8 DATA MINING AND KNOWLEDGE DISCOVERY 2417 1% 1% 6
9 IEEE TRANSACTIONS ON CYBERNETICS 2174 1% 1% 8
10 IEEE TRANSACTIONS ON NEURAL NETWORKS 2043 2% 0% 12

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 NONNEGATIVE MATRIX FACTORIZATION 4208434 33% 40% 255 Search NONNEGATIVE+MATRIX+FACTORIZATION Search NONNEGATIVE+MATRIX+FACTORIZATION
2 NONNEGATIVE MATRIX FACTORIZATION NMF 934369 9% 35% 65 Search NONNEGATIVE+MATRIX+FACTORIZATION+NMF Search NONNEGATIVE+MATRIX+FACTORIZATION+NMF
3 CONCEPT FACTORIZATION 537670 2% 100% 13 Search CONCEPT+FACTORIZATION Search CONCEPT+FACTORIZATION
4 NMF 523683 4% 38% 33 Search NMF Search NMF
5 MULTIPLICATIVE UPDATES 352917 2% 53% 16 Search MULTIPLICATIVE+UPDATES Search MULTIPLICATIVE+UPDATES
6 ALTERNATING NONNEGATIVE LEAST SQUARES 124078 0% 100% 3 Search ALTERNATING+NONNEGATIVE+LEAST+SQUARES Search ALTERNATING+NONNEGATIVE+LEAST+SQUARES
7 BARS PROBLEM 124078 0% 100% 3 Search BARS+PROBLEM Search BARS+PROBLEM
8 DUAL GRAPH REGULARIZED 124078 0% 100% 3 Search DUAL+GRAPH+REGULARIZED Search DUAL+GRAPH+REGULARIZED
9 NNMF 124078 0% 100% 3 Search NNMF Search NNMF
10 ON LINE NMF 124078 0% 100% 3 Search ON+LINE+NMF Search ON+LINE+NMF

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


rank cluster_id2 link
1 2290 DIMENSIONALITY REDUCTION//MANIFOLD LEARNING//FACE RECOGNITION
2 1710 BLIND SOURCE SEPARATION//BLIND SOURCE SEPARATION BSS//INDEPENDENT COMPONENT ANALYSIS
3 33792 COMP SCI LIX//DEFORMED EXPONENTIAL FAMILY//HESSIAN MANIFOLD
4 19508 DICTIONARY LEARNING//RAIN REMOVAL//SPARSE REPRESENTATION
5 7691 ENDMEMBER EXTRACTION//HYPERSPECTRAL UNMIXING//SPECTRAL UNMIXING
6 9592 CANDECOMP//NONNEGATIVE TENSOR//TENSOR DECOMPOSITION
7 35699 ARCHETYPAL ANALYSIS//GRADE OF MEMBERSHIP//GRADE OF MEMBERSHIP ANALYSIS
8 7297 MUSIC INFORMATION RETRIEVAL//AUDIO CLASSIFICATION//AUDIO FINGERPRINTING
9 33260 BIOCHEM MOL BIOPHYSZUCKERMAN MIND BRAIN B//BIOMED IBIMEDHLTH SCI PROGRAM//BREADTH OF EXPRESSION
10 23680 SPARSE PRINCIPAL COMPONENT ANALYSIS//SPARSE PCA//LIB QUFU NORMAL UNIV

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