Class information for:
Level 1: PROBABILISTIC INDEXING//CLUSTER BASED RETRIEVAL//PROBABILISTIC RETRIEVAL

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
11065 944 26.3 25%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
366 16658 INFORMATION RETRIEVAL//INFORMATION PROCESSING & MANAGEMENT//COMPUTATIONAL LINGUISTICS

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 PROBABILISTIC INDEXING Author keyword 6 80% 0% 4
2 CLUSTER BASED RETRIEVAL Author keyword 6 58% 1% 7
3 PROBABILISTIC RETRIEVAL Author keyword 4 41% 1% 7
4 PROBABILITY RANKING PRINCIPLE Author keyword 3 43% 1% 6
5 CLUSTER BASED LANGUAGE MODELS Author keyword 3 100% 0% 3
6 AD HOC RETRIEVAL Author keyword 2 44% 0% 4
7 2 POISSON MODEL Author keyword 2 67% 0% 2
8 COVER COEFFICIENT Author keyword 2 67% 0% 2
9 INTER DOCUMENT SIMILARITIES Author keyword 2 67% 0% 2
10 EXTENDED BOOLEAN MODEL Author keyword 2 50% 0% 3

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class		 LCSH search Wikipedia search
1 PROBABILISTIC INDEXING 6 80% 0% 4 Search PROBABILISTIC+INDEXING Search PROBABILISTIC+INDEXING
2 CLUSTER BASED RETRIEVAL 6 58% 1% 7 Search CLUSTER+BASED+RETRIEVAL Search CLUSTER+BASED+RETRIEVAL
3 PROBABILISTIC RETRIEVAL 4 41% 1% 7 Search PROBABILISTIC+RETRIEVAL Search PROBABILISTIC+RETRIEVAL
4 PROBABILITY RANKING PRINCIPLE 3 43% 1% 6 Search PROBABILITY+RANKING+PRINCIPLE Search PROBABILITY+RANKING+PRINCIPLE
5 CLUSTER BASED LANGUAGE MODELS 3 100% 0% 3 Search CLUSTER+BASED+LANGUAGE+MODELS Search CLUSTER+BASED+LANGUAGE+MODELS
6 AD HOC RETRIEVAL 2 44% 0% 4 Search AD+HOC+RETRIEVAL Search AD+HOC+RETRIEVAL
7 2 POISSON MODEL 2 67% 0% 2 Search 2+POISSON+MODEL Search 2+POISSON+MODEL
8 COVER COEFFICIENT 2 67% 0% 2 Search COVER+COEFFICIENT Search COVER+COEFFICIENT
9 INTER DOCUMENT SIMILARITIES 2 67% 0% 2 Search INTER+DOCUMENT+SIMILARITIES Search INTER+DOCUMENT+SIMILARITIES
10 EXTENDED BOOLEAN MODEL 2 50% 0% 3 Search EXTENDED+BOOLEAN+MODEL Search EXTENDED+BOOLEAN+MODEL

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 DOCUMENT RETRIEVAL 13 23% 5% 49
2 AUTOMATIC RELEVANCE FEEDBACK 6 80% 0% 4
3 TEACHING PACKAGE 6 71% 1% 5
4 CO OCCURRENCE DATA 5 54% 1% 7
5 INSTRUCT 5 63% 1% 5
6 EXPERT OPINION APPROACH 5 55% 1% 6
7 CONSTITUENT OBJECT PARSER 4 75% 0% 3
8 BOOLEAN QUERIES 3 38% 1% 6
9 COMPOSITE REPRESENTATIONS 3 60% 0% 3
10 TERM DEPENDENCE 2 44% 0% 4

Journals

Reviews


Title Publ. year Cit. Active
references		 % act. ref.
to same field
RECENT TRENDS IN HIERARCHIC DOCUMENT CLUSTERING - A CRITICAL-REVIEW 1988 258 35 69%
Feedback in information retrieval 1996 26 59 47%
RETRIEVAL TECHNIQUES 1987 97 68 57%
The use of logic in information retrieval modelling 1998 15 13 77%
Performance standards and evaluations in IR test collections: Vector-space and other retrieval models 1997 18 26 73%
PROBABILITY AND FUZZY-SET APPLICATIONS TO INFORMATION-RETRIEVAL 1985 52 30 97%
A unified mathematical definition of classical information retrieval 2000 4 50 62%
INFORMATION-RETRIEVAL TECHNIQUES 1994 27 45 47%
Techniques of document clustering: A review 2003 1 27 56%
Logical and uncertainty models for information access: current trends 2000 0 7 86%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 INFORMAT INTERACT SYST 1 31% 0.4% 4
2 DISTRIBUTED SYST TECHNOL 1 19% 0.5% 5
3 ALEXANDRIA PROJECT 1 50% 0.1% 1
4 MULTIMEDIA INTELLIGENT SOFTWARE TECHNOL BEIJING 1 50% 0.1% 1
5 PATTERN ANAL MACHINE INTELLIGENCE PAMI GRP 1 50% 0.1% 1
6 ARC PERCEPT INTELLIGENT MACHINES COMPLEX EN 1 25% 0.2% 2
7 INFORMAT RETRIEVAL KNOWLEDGE MANAGEMENT 1 22% 0.2% 2
8 DATA GRP 0 20% 0.2% 2
9 GRP KNOWLEDGE MANAGEMENT 0 33% 0.1% 1
10 LADL 0 33% 0.1% 1

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000247008 INFORMATION RETRIEVAL//DISTRIBUTED INFORMATION RETRIEVAL//ACM TRANSACTIONS ON INFORMATION SYSTEMS
2 0.0000193048 SUPERIMPOSED CODING//SIGNATURE FILE//SIGNATURE FILES
3 0.0000155852 TEXT CATEGORIZATION//TEXT CLASSIFICATION//LATENT SEMANTIC INDEXING
4 0.0000153634 INTER INFORMAT//CROSS LANGUAGE INFORMATION RETRIEVAL//STEMMING
5 0.0000141625 INFORMATION RESEARCH-AN INTERNATIONAL ELECTRONIC JOURNAL//JOURNAL OF DOCUMENTATION//PROCEEDINGS OF THE ASIS ANNUAL MEETING
6 0.0000139030 INFORMAT SCI INTELLIGENT SYST//NATURAL LANGUAGE DICTIONARIES//TRIE STRUCTURE
7 0.0000126467 STRUCTURED DOCUMENT RETRIEVAL//XML RETRIEVAL//OPEN DISTANCE LEARNING UNIT
8 0.0000109806 INTERNATIONAL CLASSIFICATION//KNOWLEDGE ORGANIZATION//KNOWLEDGE ORGANIZATION SYSTEMS
9 0.0000100906 LEGAL SEQUENCE//LEGAL SEQUENCE NUMBER//COMP PLICAT YUNNAN PROVICE
10 0.0000096433 3 DIMENSIONAL BRAID//EL ARISH EDUC//FINITE SPACES