Class information for:
Level 1: INFORMATION PROCESSING & MANAGEMENT//JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE//INFORMATION RETRIEVAL

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
8373 1260 27.6 26%


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
9 4 COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE//COMPUTER SCIENCE, INFORMATION SYSTEMS 1247339
20 3       COMPUTER SCIENCE, INFORMATION SYSTEMS//COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, SOFTWARE ENGINEERING 118625
164 2             RECOMMENDER SYSTEMS//COLLABORATIVE FILTERING//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE 22632
8373 1                   INFORMATION PROCESSING & MANAGEMENT//JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE//INFORMATION RETRIEVAL 1260

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 INFORMATION PROCESSING & MANAGEMENT journal 600721 18% 11% 226
2 JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE journal 355824 11% 10% 141
3 INFORMATION RETRIEVAL authKW 234786 13% 6% 159
4 PROBABILISTIC INDEXING authKW 121164 0% 100% 5
5 INFORMATION TECHNOLOGY-RESEARCH DEVELOPMENT APPLICATIONS journal 112763 1% 42% 11
6 EXTENDED BOOLEAN MODEL authKW 96931 0% 100% 4
7 CLUSTER BASED RETRIEVAL authKW 96927 0% 67% 6
8 INFORMATION SCIENCE & LIBRARY SCIENCE WoSSC 96573 44% 1% 550
9 PROBABILISTIC RETRIEVAL authKW 91332 1% 54% 7
10 FUZZY INFORMATION RETRIEVAL authKW 84808 1% 50% 7

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 Information Science & Library Science 96573 44% 1% 550
2 Computer Science, Information Systems 76405 63% 0% 800
3 Computer Science, Artificial Intelligence 6578 19% 0% 242
4 Computer Science, Theory & Methods 2988 14% 0% 175
5 Computer Science, Software Engineering 893 7% 0% 83
6 Computer Science, Cybernetics 762 2% 0% 30
7 Computer Science, Hardware & Architecture 474 4% 0% 47
8 Computer Science, Interdisciplinary Applications 174 4% 0% 48
9 Ergonomics 151 1% 0% 14
10 Operations Research & Management Science 82 2% 0% 29

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 SYNALP TEAM 48466 0% 100% 2
2 ARC PERCET INTELLIGENT MACHINES COMPLEX ENV 24233 0% 100% 1
3 BIBLIOTECON DOCUMENTAC ALCAZABA DE BADAJOZ 24233 0% 100% 1
4 COMP PERCEPT 24233 0% 100% 1
5 COMP PLICAT DEV 24233 0% 100% 1
6 COMP SCI A INTELLIGENCE 24233 0% 100% 1
7 COMP SCI ANDAI 24233 0% 100% 1
8 COMP SCI ENGN 0114 24233 0% 100% 1
9 COMP SCI YUSONG GU 24233 0% 100% 1
10 CRM CONSULTING TEAM 24233 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 INFORMATION PROCESSING & MANAGEMENT 600721 18% 11% 226
2 JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE 355824 11% 10% 141
3 INFORMATION TECHNOLOGY-RESEARCH DEVELOPMENT APPLICATIONS 112763 1% 42% 11
4 INFORMATION RETRIEVAL 79667 3% 10% 33
5 ACM TRANSACTIONS ON INFORMATION SYSTEMS 31759 2% 5% 26
6 JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY 21323 3% 2% 42
7 JOURNAL OF INFORMATION SCIENCE 16040 3% 2% 32
8 NACHRICHTEN FUR DOKUMENTATION 14195 1% 5% 13
9 JOURNAL OF DOCUMENTATION 13678 2% 2% 24
10 PROCEEDINGS OF THE ASIS ANNUAL MEETING 11967 1% 4% 14

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 INFORMATION RETRIEVAL 234786 13% 6% 159 Search INFORMATION+RETRIEVAL Search INFORMATION+RETRIEVAL
2 PROBABILISTIC INDEXING 121164 0% 100% 5 Search PROBABILISTIC+INDEXING Search PROBABILISTIC+INDEXING
3 EXTENDED BOOLEAN MODEL 96931 0% 100% 4 Search EXTENDED+BOOLEAN+MODEL Search EXTENDED+BOOLEAN+MODEL
4 CLUSTER BASED RETRIEVAL 96927 0% 67% 6 Search CLUSTER+BASED+RETRIEVAL Search CLUSTER+BASED+RETRIEVAL
5 PROBABILISTIC RETRIEVAL 91332 1% 54% 7 Search PROBABILISTIC+RETRIEVAL Search PROBABILISTIC+RETRIEVAL
6 FUZZY INFORMATION RETRIEVAL 84808 1% 50% 7 Search FUZZY+INFORMATION+RETRIEVAL Search FUZZY+INFORMATION+RETRIEVAL
7 CLUSTER BASED LANGUAGE MODELS 72698 0% 100% 3 Search CLUSTER+BASED+LANGUAGE+MODELS Search CLUSTER+BASED+LANGUAGE+MODELS
8 CLUSTER HYPOTHESIS 72698 0% 100% 3 Search CLUSTER+HYPOTHESIS Search CLUSTER+HYPOTHESIS
9 QUERY EXPANSION 61691 2% 12% 22 Search QUERY+EXPANSION Search QUERY+EXPANSION
10 DOCUMENT RANKING 51309 0% 35% 6 Search DOCUMENT+RANKING Search DOCUMENT+RANKING

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 TANIGUCHI, S , (1992) PROGRESS OF THE RESEARCH OF INFORMATION-RETRIEVAL MODELS IN THE 80S - A CRITICAL-REVIEW.LIBRARY AND INFORMATION SCIENCE. VOL. . ISSUE 30. P. 59 -76 60 91% 0
2 SHAW, WM , BURGIN, R , HOWELL, P , (1997) PERFORMANCE STANDARDS AND EVALUATIONS IN IR TEST COLLECTIONS: CLUSTER-BASED RETRIEVAL MODELS.INFORMATION PROCESSING & MANAGEMENT. VOL. 33. ISSUE 1. P. 1-14 24 96% 51
3 FUHR, N , (1992) PROBABILISTIC MODELS IN INFORMATION-RETRIEVAL.COMPUTER JOURNAL. VOL. 35. ISSUE 3. P. 243 -255 22 100% 92
4 SHAW, WM , BURGIN, R , HOWELL, P , (1997) PERFORMANCE STANDARDS AND EVALUATIONS IN IR TEST COLLECTIONS: VECTOR-SPACE AND OTHER RETRIEVAL MODELS.INFORMATION PROCESSING & MANAGEMENT. VOL. 33. ISSUE 1. P. 15 -36 23 85% 19
5 CORDON, O , HERRERA-VIEDMA, E , LUQUE, M , (2006) IMPROVING THE LEARNING OF BOOLEAN QUERIES BY MEANS OF A MULTIOBJECTIVE IQBE EVOLUTIONARY ALGORITHM.INFORMATION PROCESSING & MANAGEMENT. VOL. 42. ISSUE 3. P. 615 -632 18 82% 15
6 DOMINICH, S , (2000) A UNIFIED MATHEMATICAL DEFINITION OF CLASSICAL INFORMATION RETRIEVAL.JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE. VOL. 51. ISSUE 7. P. 614 -624 30 60% 4
7 MACFARLANE, A , SECKER, A , MAY, P , TIMMIS, J , (2010) AN EXPERIMENTAL COMPARISON OF A GENETIC ALGORITHM AND A HILL-CLIMBER FOR TERM SELECTION.JOURNAL OF DOCUMENTATION. VOL. 66. ISSUE 4. P. 513-531 15 83% 2
8 FAN, WG , PATHAK, P , ZHOU, M , (2009) GENETIC-BASED APPROACHES IN RANKING FUNCTION DISCOVERY AND OPTIMIZATION IN INFORMATION RETRIEVAL - A FRAMEWORK.DECISION SUPPORT SYSTEMS. VOL. 47. ISSUE 4. P. 398-407 17 74% 6
9 BELKIN, NJ , CROFT, WB , (1987) RETRIEVAL TECHNIQUES.ANNUAL REVIEW OF INFORMATION SCIENCE AND TECHNOLOGY. VOL. 22. ISSUE . P. 109-145 41 60% 100
10 ZARCO, C , CORDON, O , HERRERA-VIEDMA, E , LOPEZ-PUJALTE, C , LUQUE, M , (2003) A REVIEW ON THE APPLICATION OF EVOLUTIONARY COMPUTATION TO INFORMATION RETRIEVAL.INTERNATIONAL JOURNAL OF APPROXIMATE REASONING. VOL. 34. ISSUE 2-3. P. 241 -264 18 78% 35

Classes with closest relation at Level 1


Rank Class id link
1 12112 CROSS LANGUAGE INFORMATION RETRIEVAL//STEMMING//INTER INFORMAT
2 10377 INFORMATION RETRIEVAL//DISTRIBUTED INFORMATION RETRIEVAL//LEARNING TO RANK
3 37617 SUB INFORMAT//KNOWLEDGE INTENSIVE TASKS//ADV ZOOL BIO TECHNOL
4 19976 SIGNATURE FILE//SUPERIMPOSED CODING//INVERTED FILE
5 27914 INFORMAT SCI INTELLIGENT SYST//TRIE STRUCTURES//NATURAL LANGUAGE DICTIONARIES
6 11493 TEXT CATEGORIZATION//TEXT CLASSIFICATION//SPAM FILTERING
7 1084 INFORMATION RESEARCH-AN INTERNATIONAL ELECTRONIC JOURNAL//INFORMATION SCIENCE & LIBRARY SCIENCE//JOURNAL OF DOCUMENTATION
8 18232 LATENT SEMANTIC INDEXING//SEMIDISCRETE DECOMPOSITION//LATENT SEMANTIC ANALYSIS
9 19849 INTERNATIONAL CLASSIFICATION//KNOWLEDGE ORGANIZATION SYSTEMS//KNOWLEDGE ORGANIZATION
10 11569 PROGRAM-AUTOMATED LIBRARY AND INFORMATION SYSTEMS//ONLINE//LIBRARY SOFTWARE REVIEW

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