SIGMOD
1999
ACM
14 years 19 min ago
1999
ACM
In this paper we present a mechanism for translating constraint queries, i.e., Boolean expressions of constraints, across heterogeneous information sources. Integrating such syste...
SIGMOD
1999
ACM
14 years 20 min ago
1999
ACM
SIGMOD
1999
ACM
14 years 21 min ago
1999
ACM
SIGMOD
1999
ACM
14 years 21 min ago
1999
ACM
SIGMOD
1999
ACM
14 years 21 min ago
1999
ACM
In recent years, many data mining methods have been proposed for finding useful and structured information from market basket data. The association rule model was recently propos...
SIGMOD
1999
ACM
14 years 22 min ago
1999
ACM
Selectivity estimation of queries is an important and wellstudied problem in relational database systems. In this paper, we examine selectivity estimation in the context of Geogra...
SIGMOD
1999
ACM
14 years 22 min ago
1999
ACM
In large data warehousing environments, it is often advantageous to provide fast, approximate answers to complex aggregate queries based on statistical summaries of the full data....
SIGMOD
1999
ACM
14 years 23 min ago
1999
ACM
In this paper, we introduce self-tuning histograms. Although similar in structure to traditional histograms, these histograms infer data distributions not by examining the data or...
SIGMOD
1999
ACM
14 years 23 min ago
1999
ACM
Cluster analysis is a primary method for database mining. It is either used as a stand-alone tool to get insight into the distribution of a data set, e.g. to focus further analysi...
PODS
1999
ACM
14 years 8 hour ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...