SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Recovery can be extended to new domains at reduced logging cost by exploiting "logical" log operations. During recovery, a logical log operation may read data values fro...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
The database query optimizer requires the estimation of the query selectivity to find the most efficient access plan. For queries referencing multiple attributes from the same rel...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Pre-computation and materialization of views with aggregate functions is a common technique in Data Warehouses. Due to the complex structure of the warehouse and the different pro...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Research and products for the integration of heterogeneous legacy source databases in data warehousing have addressed numerous data quality problems in or between the sources. Suc...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
It is envisaged that the application of the multilevel security (MLS) scheme will enhance exibility and e ectiveness of authorization policies in shared enterprise databases and w...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Query processing in data integration occurs over network-bound, autonomous data sources. This requires extensions to traditional optimization and execution techniques for three re...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM
Classification is an important data mining problem. Given a training database of records, each tagged with a class label, the goal of classification is to build a concise model ...
SIGMOD
1999
ACM
14 years 3 months ago
1999
ACM