6740 search results - page 30 / 1348 » Querying Databases with Taxonomies |
118
click to vote
NAACL
2003
15 years 3 months ago
2003
This paper describes an unsupervised algorithm for placing unknown words into a taxonomy and evaluates its accuracy on a large and varied sample of words. The algorithm works by ...
106
click to vote
EDBT
2008
ACM
16 years 1 months ago
2008
ACM
For complex data mining queries, query optimization issues arise, similar to those for the traditional database queries. However, few works have applied the cost-based query optim...
127
click to vote
SIGMOD
2008
ACM
15 years 1 months ago
2008
ACM
OLAP is an important tool in decision support. With the help of domain knowledge, such as hierarchies of attribute values, OLAP helps the user observe the effects of various decis...
116
click to vote
DEXAW
2007
IEEE
15 years 8 months ago
2007
IEEE
The semantic web represents meta-data as a relation of triples using the RDF data model. We have developed a virtual repository system that enables to process queries to RDF views...
114
click to vote
ICDE
2006
IEEE
15 years 7 months ago
2006
IEEE
Due to the flexible structures of SQL, no general approach works efficiently for all kinds of queries. Some special kinds of queries can be further optimized for better performa...