Class information for:
Level 2: INFORMATION SYSTEMS//COMPUTER SCIENCE, INFORMATION SYSTEMS//ACM TRANSACTIONS ON DATABASE SYSTEMS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
864 11601 27.8 24%


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
864 2             INFORMATION SYSTEMS//COMPUTER SCIENCE, INFORMATION SYSTEMS//ACM TRANSACTIONS ON DATABASE SYSTEMS 11601
6911 1                   FUNCTIONAL DEPENDENCY//SCHEMA MAPPING//ACM TRANSACTIONS ON DATABASE SYSTEMS 1430
7649 1                   QUERY OPTIMIZATION//DISTRIBUTED DATABASE DESIGN//PARALLEL QUERY PROCESSING 1343
10587 1                   CONCEPTUAL MODELING//ENTITY RELATIONSHIP MODEL//DATABASE DESIGN 1051
12401 1                   SCHEMA INTEGRATION//SCHEMA MATCHING//HETEROGENEOUS DATABASES 908
13344 1                   DATA WAREHOUSE//OLAP//DATA WAREHOUSING 844
13494 1                   FINITE MODEL THEORY//DESCRIPTIVE COMPLEXITY//CONSTRAINT DATABASES 833
13552 1                   XML//XPATH//KEYWORD SEARCH 829
13630 1                   OBJECT ORIENTED DATABASES//OBJECT ORIENTED DATABASE SYSTEMS//OBJECT ALGEBRA 823
14858 1                   FUZZY DATABASES//FUZZY FUNCTIONAL DEPENDENCY//FUZZY RELATIONAL DATABASES 745
16230 1                   TEMPORAL DATABASES//SCHEMA EVOLUTION//VALID TIME 666
20695 1                   ACTIVE DATABASES//ACTIVE DATABASE SYSTEMS//REAL TIME DECISION SYSTEMS 449
21393 1                   DATA QUALITY//INFORMATION QUALITY//INFORMATION QUALITY MANAGEMENT 420
26556 1                   PATH ORIENTATION//PHYSICAL ASSEMBLY//DEDUCTIVE OBJECT ORIENTED DATABASES 251
29419 1                   RECURSIVE QUERY PROCESSING//DEDUCTIVE DATABASES//RECURSIVE QUERY EVALUATION 186
29681 1                   DATABASE REVERSE ENGINEERING//ENTERPRISE WIDE DATA MODEL//SUIT QUALITY 182
30243 1                   XML RETRIEVAL//DATA DEFINITION LANGUAGES//INTERNET MEDIATED TRANSACTION IMT 172
31358 1                   XBRL//XML SIGNATURE//STRUCTURED DOCUMENT RETRIEVAL 154
31816 1                   COMPLEX OBJECT RELATIONS//2 PHASE LOCKING PROTOCOL//AD GT1 147
35560 1                   ORA SS//EQUIVALENT TRANSFORMATION MODEL//ET RULE 95
36840 1                   CHAIR CONTROL ROBOT COMP SCI//ASSOCIATIONIST THEORY//AUDIO INTERPRETATION 73

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 SYSTEMS journal 426899 4% 33% 488
2 COMPUTER SCIENCE, INFORMATION SYSTEMS WoSSC 426658 50% 3% 5753
3 ACM TRANSACTIONS ON DATABASE SYSTEMS journal 392007 3% 44% 342
4 XML authKW 329241 3% 32% 397
5 DATA WAREHOUSE authKW 265476 2% 51% 200
6 DATA & KNOWLEDGE ENGINEERING journal 260378 3% 28% 349
7 QUERY OPTIMIZATION authKW 246344 1% 57% 164
8 TEMPORAL DATABASES authKW 235056 1% 72% 124
9 FUNCTIONAL DEPENDENCY authKW 210478 1% 68% 117
10 RELATIONAL DATABASE authKW 206899 2% 37% 213

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 Computer Science, Information Systems 426658 50% 3% 5753
2 Computer Science, Theory & Methods 185815 35% 2% 4052
3 Computer Science, Software Engineering 132458 25% 2% 2886
4 Computer Science, Artificial Intelligence 63813 20% 1% 2285
5 Computer Science, Hardware & Architecture 32968 10% 1% 1126
6 Information Science & Library Science 10169 5% 1% 567
7 Logic 9698 2% 2% 238
8 COMPUTER APPLICATIONS & CYBERNETICS 4391 1% 3% 67
9 Operations Research & Management Science 1402 3% 0% 343
10 Computer Science, Cybernetics 1401 1% 0% 129

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 COMP SCI 57165 16% 1% 1848
2 LUCENTIA GRP 31662 0% 71% 17
3 SOFTWARE COMP SYST 23056 0% 34% 26
4 ONTOL CONCEPTUAL MODELING GRP NEMO 16830 0% 80% 8
5 INTEROPERABLE SYST GRP 13525 0% 86% 6
6 INFORMAT 11858 3% 1% 402
7 INFORMAT SYST 11619 2% 3% 179
8 MANAGEMENT INFORMAT LIRIS 10957 0% 83% 5
9 GSCIT 10517 0% 67% 6
10 BUSINESS SYST 9120 0% 13% 26

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 SYSTEMS 426899 4% 33% 488
2 ACM TRANSACTIONS ON DATABASE SYSTEMS 392007 3% 44% 342
3 DATA & KNOWLEDGE ENGINEERING 260378 3% 28% 349
4 LECTURE NOTES IN COMPUTER SCIENCE 154718 20% 3% 2293
5 IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 145905 4% 14% 409
6 SIGMOD RECORD 116814 1% 28% 158
7 VLDB JOURNAL 101940 1% 26% 151
8 JOURNAL OF DATABASE MANAGEMENT 95257 1% 42% 86
9 DISTRIBUTED AND PARALLEL DATABASES 55126 1% 24% 89
10 INFORMATION AND SOFTWARE TECHNOLOGY 46085 2% 8% 208

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 XML 329241 3% 32% 397 Search XML Search XML
2 DATA WAREHOUSE 265476 2% 51% 200 Search DATA+WAREHOUSE Search DATA+WAREHOUSE
3 QUERY OPTIMIZATION 246344 1% 57% 164 Search QUERY+OPTIMIZATION Search QUERY+OPTIMIZATION
4 TEMPORAL DATABASES 235056 1% 72% 124 Search TEMPORAL+DATABASES Search TEMPORAL+DATABASES
5 FUNCTIONAL DEPENDENCY 210478 1% 68% 117 Search FUNCTIONAL+DEPENDENCY Search FUNCTIONAL+DEPENDENCY
6 RELATIONAL DATABASE 206899 2% 37% 213 Search RELATIONAL+DATABASE Search RELATIONAL+DATABASE
7 OLAP 181976 1% 57% 122 Search OLAP Search OLAP
8 CONCEPTUAL MODELING 177412 1% 39% 171 Search CONCEPTUAL+MODELING Search CONCEPTUAL+MODELING
9 OBJECT ORIENTED DATABASES 166281 1% 61% 104 Search OBJECT+ORIENTED+DATABASES Search OBJECT+ORIENTED+DATABASES
10 DATA WAREHOUSING 163410 1% 60% 104 Search DATA+WAREHOUSING Search DATA+WAREHOUSING

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 FERRAROTTI, F , HARTMANN, S , LINK, S , (2013) REASONING ABOUT FUNCTIONAL AND FULL HIERARCHICAL DEPENDENCIES OVER PARTIAL RELATIONS.INFORMATION SCIENCES. VOL. 235. ISSUE . P. 150-173 53 93% 2
2 HARTMANN, S , KIRCHBERG, M , LINK, S , (2012) DESIGN BY EXAMPLE FOR SQL TABLE DEFINITIONS WITH FUNCTIONAL DEPENDENCIES.VLDB JOURNAL. VOL. 21. ISSUE 1. P. 121-144 54 92% 0
3 HARTMANN, S , LINK, S , (2012) THE IMPLICATION PROBLEM OF DATA DEPENDENCIES OVER SQL TABLE DEFINITIONS: AXIOMATIC, ALGORITHMIC AND LOGICAL CHARACTERIZATIONS.ACM TRANSACTIONS ON DATABASE SYSTEMS. VOL. 37. ISSUE 2. P. - 58 84% 1
4 LINK, S , (2012) CHARACTERISATIONS OF MULTIVALUED DEPENDENCY IMPLICATION OVER UNDETERMINED UNIVERSES.JOURNAL OF COMPUTER AND SYSTEM SCIENCES. VOL. 78. ISSUE 4. P. 1026-1044 50 91% 0
5 HARTMANN, S , LECK, U , LINK, S , (2011) ON CODD FAMILIES OF KEYS OVER INCOMPLETE RELATIONS.COMPUTER JOURNAL. VOL. 54. ISSUE 7. P. 1166 -1180 46 94% 1
6 MA, ZM , YAN, L , (2008) A LITERATURE OVERVIEW OF FUZZY DATABASE MODELS.JOURNAL OF INFORMATION SCIENCE AND ENGINEERING. VOL. 24. ISSUE 1. P. 189 -202 45 96% 13
7 CARUCCIO, L , DEUFEMIA, V , POLESE, G , (2016) RELAXED FUNCTIONAL DEPENDENCIES-A SURVEY OF APPROACHES.IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING. VOL. 28. ISSUE 1. P. 147 -165 31 94% 2
8 LANGEVELDT, WD , LINK, S , (2010) EMPIRICAL EVIDENCE FOR THE USEFULNESS OF ARMSTRONG RELATIONS IN THE ACQUISITION OF MEANINGFUL FUNCTIONAL DEPENDENCIES.INFORMATION SYSTEMS. VOL. 35. ISSUE 3. P. 352-374 40 93% 0
9 YAN, L , MA, ZM , ZHANG, F , (2014) ALGEBRAIC OPERATIONS IN FUZZY OBJECT-ORIENTED DATABASES.INFORMATION SYSTEMS FRONTIERS. VOL. 16. ISSUE 4. P. 543 -556 33 100% 1
10 BISKUP, J , (1998) ACHIEVEMENTS OF RELATIONAL DATABASE SCHEMA DESIGN THEORY REVISITED.SEMANTICS IN DATABASES. VOL. 1358. ISSUE . P. 29 -54 47 96% 15

Classes with closest relation at Level 2


Rank Class id link
1 1774 PACKET CLASSIFICATION//SPATIAL DATABASES//SIMILARITY SEARCH
2 3509 WEB ENGINEERING//WIRTSCHAFTSINFORMATIK//HYPERMEDIA
3 2428 SERVICE COMPOSITION//WEB SERVICES//PROCESS MINING
4 1506 SIGPLAN NOTICES//COMPUTER SCIENCE, SOFTWARE ENGINEERING//SOFTWARE-PRACTICE & EXPERIENCE
5 539 COMPUTER SCIENCE, SOFTWARE ENGINEERING//INFORMATION AND SOFTWARE TECHNOLOGY//IEEE SOFTWARE
6 164 RECOMMENDER SYSTEMS//COLLABORATIVE FILTERING//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE
7 1122 NONMONOTONIC REASONING//ANSWER SET PROGRAMMING//LECTURE NOTES IN ARTIFICIAL INTELLIGENCE
8 3222 PRIVACY PRESERVING DATA MINING//STATISTICAL DISCLOSURE CONTROL//K ANONYMITY
9 1482 CARTOGRAPHIC JOURNAL//INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE//QUALITATIVE SPATIAL REASONING
10 2216 ASSOCIATION RULES//DATA MINING//FREQUENT ITEMSETS

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