Class information for: |
Basic class information |
| ID | Publications | Average number of references |
Avg. shr. active ref. in WoS |
|---|---|---|---|
| 17952 | 511 | 27.6 | 22% |
Classes in level above (level 2) |
| ID, lev. above |
Publications | Label for level above |
|---|---|---|
| 472 | 15064 | ACM TRANSACTIONS ON DATABASE SYSTEMS//INFORMATION SYSTEMS//DATA & KNOWLEDGE ENGINEERING |
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 | TEMPORAL DATABASES | Author keyword | 36 | 41% | 13% | 68 |
| 2 | TEMPORAL QUERY LANGUAGES | Author keyword | 12 | 86% | 1% | 6 |
| 3 | VALID TIME | Author keyword | 10 | 54% | 3% | 13 |
| 4 | TRANSACTION TIME | Author keyword | 9 | 43% | 3% | 16 |
| 5 | TEMPORAL DATABASE | Author keyword | 8 | 29% | 5% | 25 |
| 6 | HISTORICAL DATABASES | Author keyword | 6 | 71% | 1% | 5 |
| 7 | SCHEMA VERSIONING | Author keyword | 5 | 43% | 2% | 9 |
| 8 | TIME SEMANTICS | Author keyword | 4 | 75% | 1% | 3 |
| 9 | TEMPORAL DATA MODELS | Author keyword | 3 | 57% | 1% | 4 |
| 10 | SCHEMA EVOLUTION | Author keyword | 3 | 16% | 3% | 16 |
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 | TEMPORAL DATABASES | 36 | 41% | 13% | 68 | Search TEMPORAL+DATABASES | Search TEMPORAL+DATABASES |
| 2 | TEMPORAL QUERY LANGUAGES | 12 | 86% | 1% | 6 | Search TEMPORAL+QUERY+LANGUAGES | Search TEMPORAL+QUERY+LANGUAGES |
| 3 | VALID TIME | 10 | 54% | 3% | 13 | Search VALID+TIME | Search VALID+TIME |
| 4 | TRANSACTION TIME | 9 | 43% | 3% | 16 | Search TRANSACTION+TIME | Search TRANSACTION+TIME |
| 5 | TEMPORAL DATABASE | 8 | 29% | 5% | 25 | Search TEMPORAL+DATABASE | Search TEMPORAL+DATABASE |
| 6 | HISTORICAL DATABASES | 6 | 71% | 1% | 5 | Search HISTORICAL+DATABASES | Search HISTORICAL+DATABASES |
| 7 | SCHEMA VERSIONING | 5 | 43% | 2% | 9 | Search SCHEMA+VERSIONING | Search SCHEMA+VERSIONING |
| 8 | TIME SEMANTICS | 4 | 75% | 1% | 3 | Search TIME+SEMANTICS | Search TIME+SEMANTICS |
| 9 | TEMPORAL DATA MODELS | 3 | 57% | 1% | 4 | Search TEMPORAL+DATA+MODELS | Search TEMPORAL+DATA+MODELS |
| 10 | SCHEMA EVOLUTION | 3 | 16% | 3% | 16 | Search SCHEMA+EVOLUTION | Search SCHEMA+EVOLUTION |
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 | EXTENDING RELATIONAL ALGEBRA | 13 | 80% | 2% | 8 |
| 2 | QUERY LANGUAGE | 12 | 30% | 7% | 34 |
| 3 | TEMPORAL DATABASES | 8 | 48% | 2% | 12 |
| 4 | RELATIONAL MODEL | 6 | 26% | 4% | 20 |
| 5 | QUERY LANGUAGE TQUEL | 6 | 100% | 1% | 4 |
| 6 | HISTORICAL DATABASES | 4 | 75% | 1% | 3 |
| 7 | VIEW MAINTENANCE | 4 | 75% | 1% | 3 |
| 8 | TEMPORAL DATA | 1 | 31% | 1% | 4 |
| 9 | SCHEMA EVOLUTION | 1 | 18% | 1% | 7 |
| 10 | QUERY LANGUAGES | 1 | 17% | 1% | 7 |
Journals |
Reviews |
| Title | Publ. year | Cit. | Active references |
% act. ref. to same field |
|---|---|---|---|---|
| A Survey of Managing the Evolution of Data Warehouses | 2009 | 5 | 29 | 76% |
| TEMPORAL AND REAL-TIME DATABASES - A SURVEY | 1995 | 121 | 44 | 59% |
| Semantics of time-varying information | 1996 | 25 | 21 | 76% |
| TEMPORAL DATABASES | 1992 | 0 | 22 | 68% |
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 | KNOWLEDGE DATABASE SYST | 1 | 19% | 0.8% | 4 |
| 2 | COMP SCI DATABASE SYST | 1 | 50% | 0.2% | 1 |
| 3 | DIPARTIMENTO INFORMAT INGN SISTEMAS | 1 | 50% | 0.2% | 1 |
| 4 | HUMAN CENTERED COMP | 1 | 50% | 0.2% | 1 |
| 5 | INFORMAT PANEPISTIMIOPOLIS | 1 | 50% | 0.2% | 1 |
| 6 | IT PLICAT | 1 | 50% | 0.2% | 1 |
| 7 | INFORMAT CLIN | 0 | 20% | 0.4% | 2 |
| 8 | ADV DATABASE SYST | 0 | 33% | 0.2% | 1 |
| 9 | FEDS | 0 | 33% | 0.2% | 1 |
| 10 | MKT INFORMAT STAT | 0 | 33% | 0.2% | 1 |
Related classes at same level (level 1) |
| Rank | Relatedness score | Related classes |
|---|---|---|
| 1 | 0.0000239237 | TEMPORAL REASONING//TEMPORAL ABSTRACTION//TEMPORAL ABSTRACTIONS |
| 2 | 0.0000231298 | LUCENTIA GRP//OLAP//DATA WAREHOUSES |
| 3 | 0.0000193798 | OBJECT ORIENTED DATABASES//FUNCTIONAL DATA MODEL//OBJECT ALGEBRA |
| 4 | 0.0000182817 | OBJECT ROLE MODELING//CONCEPTUAL DATA MODELLING//NIAM |
| 5 | 0.0000118544 | MULTIPLE QUERY OPTIMIZATION//DATA STREAM PROCESSING//CONTINUOUS QUERIES |
| 6 | 0.0000101651 | FUNCTIONAL DEPENDENCY//FUNCTIONAL DEPENDENCIES//ORTHOGONAL DOUBLE COVER |
| 7 | 0.0000096251 | XPATH//XML QUERY PROCESSING//XML FILTERING |
| 8 | 0.0000080340 | SPLAY TREES//HEAPSORT//DATA STRUCTURES |
| 9 | 0.0000067754 | CERTAIN ANSWERS//SCHEMA MAPPINGS//RECURSIVE QUERY EVALUATION |
| 10 | 0.0000064472 | CONCURRENCY CONTROL//TRANSACTION PROCESSING//REAL TIME DATABASE SYSTEMS |