1959 search results - page 219 / 392 » Document Management as a Database Problem |
116
Voted
PPOPP
2005
ACM
15 years 9 months ago
2005
ACM
The goal of data mining algorithm is to discover useful information embedded in large databases. Frequent itemset mining and sequential pattern mining are two important data minin...
131
Voted
PODS
2010
ACM
15 years 8 months ago
2010
ACM
We investigate a higher-order query language that embeds operators of the positive relational algebra within the simply-typed λ-calculus. Our language allows one to succinctly de...
111
Voted
DAWAK
1999
Springer
15 years 8 months ago
1999
Springer
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over relations that are stored in distributed heterogeneous databases. The selection of views for...
258
Voted
ICDE
2009
IEEE
16 years 5 months ago
2009
IEEE
One of the most challenging aspects of managing a very large data warehouse is identifying how queries will behave before they start executing. Yet knowing their performance charac...
127
Voted
DOLAP
2009
ACM
15 years 10 months ago
2009
ACM
In this paper, we investigate the problem of answering top-k queries via materialized views. We provide theoretical guarantees for the adequacy of a view to answer a top-k query, ...