Class information for:
Level 1: KEYPHRASE EXTRACTION//DEWEY DECIMAL CLASSIFICATION DDC//GRAPH BASED KEYWORD EXTRACTION

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
12 4 COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, INFORMATION SYSTEMS//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE 1181119
31 3       COMPUTER SCIENCE, SOFTWARE ENGINEERING//COMPUTER SCIENCE, INFORMATION SYSTEMS//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE 113161
355 2             RECOMMENDER SYSTEMS//COLLABORATIVE FILTERING//INFORMATION PROCESSING & MANAGEMENT 17972
34343 1                   KEYPHRASE EXTRACTION//DEWEY DECIMAL CLASSIFICATION DDC//GRAPH BASED KEYWORD EXTRACTION 126

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 KEYPHRASE EXTRACTION authKW 1000528 8% 40% 10
2 DEWEY DECIMAL CLASSIFICATION DDC authKW 500270 2% 100% 2
3 GRAPH BASED KEYWORD EXTRACTION authKW 500270 2% 100% 2
4 SCIENTIFIC DIGITAL LIBRARIES authKW 500270 2% 100% 2
5 SCIENTIFIC DOCUMENT PROCESSING authKW 500270 2% 100% 2
6 KEYWORD EXTRACTION authKW 278548 6% 16% 7
7 ADAPTIVE ASSISTANTS authKW 250135 1% 100% 1
8 AGRARIAN DATA DESCRIPTION authKW 250135 1% 100% 1
9 ANALYSIS OF SENSORY DATA authKW 250135 1% 100% 1
10 ARABIC WEB CONTENT authKW 250135 1% 100% 1

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Computer Science, Information Systems 3015 40% 0% 51
2 Information Science & Library Science 2701 23% 0% 29
3 Computer Science, Artificial Intelligence 1731 31% 0% 39
4 Computer Science, Theory & Methods 398 16% 0% 20
5 Computer Science, Cybernetics 312 5% 0% 6
6 Ergonomics 136 3% 0% 4
7 Computer Science, Interdisciplinary Applications 115 9% 0% 11
8 Computer Science, Software Engineering 29 4% 0% 5
9 Agriculture, Multidisciplinary 22 3% 0% 4
10 Operations Research & Management Science 18 3% 0% 4

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ASEAVA 250135 1% 100% 1
2 COMP LANGUAGES COMP SYST 250135 1% 100% 1
3 ERWERBUNGS KATALOGABT 250135 1% 100% 1
4 HOCH ULDOZENT 250135 1% 100% 1
5 INTELIGENCIA ARTICIAL 250135 1% 100% 1
6 INTELIGENCIA ARTIFICIA 250135 1% 100% 1
7 LEWIS SIGLER INTRAGRAT GENOM 250135 1% 100% 1
8 NAT LANGUAGE PROC GRP COMP SCI 250135 1% 100% 1
9 OURCE HLTH CARE TECHNOL SANTEC 250135 1% 100% 1
10 RUN RUN SHAW LIBRARY 250135 1% 100% 1

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 INFORMATION-WISSENSCHAFT UND PRAXIS 62532 1% 25% 1
2 ZEITSCHRIFT FUR BIBLIOTHEKSWESEN UND BIBLIOGRAPHIE 17095 3% 2% 4
3 INTERNATIONAL JOURNAL ON SEMANTIC WEB AND INFORMATION SYSTEMS 13891 2% 2% 3
4 JOURNAL OF INFORMATION SCIENCE 12830 7% 1% 9
5 NFD INFORMATION-WISSENSCHAFT UND PRAXIS 5436 1% 2% 1
6 INFORMATION RETRIEVAL JOURNAL 5001 1% 2% 1
7 JOURNAL OF THE ASSOCIATION FOR INFORMATION SCIENCE AND TECHNOLOGY 2980 2% 0% 3
8 KNOWLEDGE ORGANIZATION 2129 2% 0% 2
9 JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 1996 3% 0% 4
10 LIBRARY HI TECH 1783 2% 0% 2

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 KEYPHRASE EXTRACTION 1000528 8% 40% 10 Search KEYPHRASE+EXTRACTION Search KEYPHRASE+EXTRACTION
2 DEWEY DECIMAL CLASSIFICATION DDC 500270 2% 100% 2 Search DEWEY+DECIMAL+CLASSIFICATION+DDC Search DEWEY+DECIMAL+CLASSIFICATION+DDC
3 GRAPH BASED KEYWORD EXTRACTION 500270 2% 100% 2 Search GRAPH+BASED+KEYWORD+EXTRACTION Search GRAPH+BASED+KEYWORD+EXTRACTION
4 SCIENTIFIC DIGITAL LIBRARIES 500270 2% 100% 2 Search SCIENTIFIC+DIGITAL+LIBRARIES Search SCIENTIFIC+DIGITAL+LIBRARIES
5 SCIENTIFIC DOCUMENT PROCESSING 500270 2% 100% 2 Search SCIENTIFIC+DOCUMENT+PROCESSING Search SCIENTIFIC+DOCUMENT+PROCESSING
6 KEYWORD EXTRACTION 278548 6% 16% 7 Search KEYWORD+EXTRACTION Search KEYWORD+EXTRACTION
7 ADAPTIVE ASSISTANTS 250135 1% 100% 1 Search ADAPTIVE+ASSISTANTS Search ADAPTIVE+ASSISTANTS
8 AGRARIAN DATA DESCRIPTION 250135 1% 100% 1 Search AGRARIAN+DATA+DESCRIPTION Search AGRARIAN+DATA+DESCRIPTION
9 ANALYSIS OF SENSORY DATA 250135 1% 100% 1 Search ANALYSIS+OF+SENSORY+DATA Search ANALYSIS+OF+SENSORY+DATA
10 ARABIC WEB CONTENT 250135 1% 100% 1 Search ARABIC+WEB+CONTENT Search ARABIC+WEB+CONTENT

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 13623 TEXT CATEGORIZATION//TEXT CLASSIFICATION//TERM WEIGHTING
2 12029 INFORMATION RETRIEVAL//LEARNING TO RANK//QUERY EXPANSION
3 33543 AEROSOL ACTIVITY//AEROSOL MONITORS//AIRBORNE PARTICLE MONITORING
4 28461 PARTIAL PARSING//TEXT CHUNKING//SHALLOW PARSING
5 19711 IMAGE USE//MULTILINGUAL INFORMATION//LIBRARY OF CONGRESS SUBJECT HEADINGS
6 15238 KNOWLEDGE ORGANIZATION//KNOWLEDGE ORGANIZATION SYSTEMS//INFORMAT ORG GRP
7 8659 SEMANTIC SIMILARITY//WORD SENSE DISAMBIGUATION//WORDNET
8 21174 JOURNAL OF QUANTITATIVE LINGUISTICS//COMPLEX QUANTITAT LINGUIST//ZIPFS LAW
9 12754 CROSS LANGUAGE INFORMATION RETRIEVAL//STEMMING//INTER INFORMAT
10 17141 INFORMATION EXTRACTION//WRAPPER INDUCTION//WEB DATA EXTRACTION

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