Class information for: |
Basic class information |
| ID | Publications | Average number of references |
Avg. shr. active ref. in WoS |
|---|---|---|---|
| 15584 | 634 | 25.8 | 21% |
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 | CERTAIN ANSWERS | Author keyword | 13 | 67% | 2% | 12 |
| 2 | SCHEMA MAPPINGS | Author keyword | 10 | 52% | 2% | 14 |
| 3 | RECURSIVE QUERY EVALUATION | Author keyword | 6 | 80% | 1% | 4 |
| 4 | DEDUCTIVE DATABASE | Author keyword | 6 | 30% | 3% | 18 |
| 5 | BAG SEMANTICS | Author keyword | 6 | 100% | 1% | 4 |
| 6 | METADATA MODEL MANAGEMENT | Author keyword | 6 | 100% | 1% | 4 |
| 7 | QUERY CONTAINMENT | Author keyword | 5 | 39% | 2% | 11 |
| 8 | QUERY REWRITING | Author keyword | 5 | 22% | 3% | 19 |
| 9 | BAG SET SEMANTICS | Author keyword | 4 | 75% | 0% | 3 |
| 10 | DEDUCTIVE DATABASES | Author keyword | 3 | 14% | 4% | 24 |
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 | CERTAIN ANSWERS | 13 | 67% | 2% | 12 | Search CERTAIN+ANSWERS | Search CERTAIN+ANSWERS |
| 2 | SCHEMA MAPPINGS | 10 | 52% | 2% | 14 | Search SCHEMA+MAPPINGS | Search SCHEMA+MAPPINGS |
| 3 | RECURSIVE QUERY EVALUATION | 6 | 80% | 1% | 4 | Search RECURSIVE+QUERY+EVALUATION | Search RECURSIVE+QUERY+EVALUATION |
| 4 | DEDUCTIVE DATABASE | 6 | 30% | 3% | 18 | Search DEDUCTIVE+DATABASE | Search DEDUCTIVE+DATABASE |
| 5 | BAG SEMANTICS | 6 | 100% | 1% | 4 | Search BAG+SEMANTICS | Search BAG+SEMANTICS |
| 6 | METADATA MODEL MANAGEMENT | 6 | 100% | 1% | 4 | Search METADATA+MODEL+MANAGEMENT | Search METADATA+MODEL+MANAGEMENT |
| 7 | QUERY CONTAINMENT | 5 | 39% | 2% | 11 | Search QUERY+CONTAINMENT | Search QUERY+CONTAINMENT |
| 8 | QUERY REWRITING | 5 | 22% | 3% | 19 | Search QUERY+REWRITING | Search QUERY+REWRITING |
| 9 | BAG SET SEMANTICS | 4 | 75% | 0% | 3 | Search BAG+SET+SEMANTICS | Search BAG+SET+SEMANTICS |
| 10 | DEDUCTIVE DATABASES | 3 | 14% | 4% | 24 | Search DEDUCTIVE+DATABASES | Search DEDUCTIVE+DATABASES |
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 | RELATIONAL EXPRESSIONS | 15 | 62% | 3% | 16 |
| 2 | DATA EXCHANGE | 4 | 20% | 3% | 18 |
| 3 | CONJUNCTIVE QUERIES | 3 | 33% | 1% | 8 |
| 4 | SCHEMA MAPPINGS | 2 | 38% | 1% | 5 |
| 5 | REGULAR PATH QUERIES | 2 | 44% | 1% | 4 |
| 6 | DATALOG QUERIES | 2 | 50% | 0% | 3 |
| 7 | SEMANTIC QUERY OPTIMIZATION | 2 | 33% | 1% | 4 |
| 8 | INCLUSION DEPENDENCIES | 1 | 17% | 1% | 8 |
| 9 | INCREMENTAL RECOMPUTATION | 1 | 100% | 0% | 2 |
| 10 | LOGICAL VIEWS | 1 | 100% | 0% | 2 |
Journals |
Reviews |
| Title | Publ. year | Cit. | Active references |
% act. ref. to same field |
|---|---|---|---|---|
| Answering queries using views: A survey | 2001 | 334 | 9 | 67% |
| AN OVERVIEW OF PRIMO - A PORTABLE INTERFACE BETWEEN PROLOG AND RELATIONAL DATABASES | 1990 | 1 | 3 | 67% |
| LOGIC AND DATABASES - A DEDUCTIVE APPROACH | 1984 | 57 | 18 | 6% |
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 | ARCHIVE LIB SCI | 1 | 38% | 0.5% | 3 |
| 2 | TERADATA | 1 | 27% | 0.5% | 3 |
| 3 | KRDB KNOWLEDGE DATA | 1 | 33% | 0.3% | 2 |
| 4 | SELIM RACHEL BENIN ENGN COMP SCI | 1 | 17% | 0.6% | 4 |
| 5 | ENGN SERVEIS SISTEMES INFORMACIO | 1 | 50% | 0.2% | 1 |
| 6 | ADAM MICKIEWICZ UNIV | 0 | 33% | 0.2% | 1 |
| 7 | FRAUNHOFER FIT | 0 | 33% | 0.2% | 1 |
| 8 | GENIE INFORMAT PROD | 0 | 33% | 0.2% | 1 |
| 9 | K53 B2 | 0 | 33% | 0.2% | 1 |
| 10 | MPLA | 0 | 33% | 0.2% | 1 |
Related classes at same level (level 1) |
| Rank | Relatedness score | Related classes |
|---|---|---|
| 1 | 0.0000240626 | FUNCTIONAL DEPENDENCY//FUNCTIONAL DEPENDENCIES//ORTHOGONAL DOUBLE COVER |
| 2 | 0.0000194393 | SCHEMA INTEGRATION//SCHEMA MATCHING//ONTOLOGY MATCHING |
| 3 | 0.0000151400 | OBJECT ORIENTED DATABASES//FUNCTIONAL DATA MODEL//OBJECT ALGEBRA |
| 4 | 0.0000147842 | LUCENTIA GRP//OLAP//DATA WAREHOUSES |
| 5 | 0.0000133041 | XPATH//XML QUERY PROCESSING//XML FILTERING |
| 6 | 0.0000130090 | FINITE MODEL THEORY//DEPENDENCE LOGIC//DESCRIPTIVE COMPLEXITY |
| 7 | 0.0000114261 | ANSWER SET PROGRAMMING//NONMONOTONIC REASONING//DEFAULT LOGIC |
| 8 | 0.0000111309 | DESCRIPTION LOGICS//FUZZY DESCRIPTION LOGICS//LOGIC FOR THE SEMANTIC WEB |
| 9 | 0.0000109421 | ACTIVE DATABASES//ACTIVE DATABASE SYSTEMS//REAL TIME DECISION SYSTEMS |
| 10 | 0.0000090977 | MULTIPLE QUERY OPTIMIZATION//DATA STREAM PROCESSING//CONTINUOUS QUERIES |