Sciweavers

Share
SIGMOD
1996
ACM
151views Database» more  SIGMOD 1996»
9 years 5 months ago
BIRCH: An Efficient Data Clustering Method for Very Large Databases
Finding useful patterns in large datasets has attracted considerable interest recently, and one of the most widely st,udied problems in this area is the identification of clusters...
Tian Zhang, Raghu Ramakrishnan, Miron Livny
SIGMOD
1996
ACM
110views Database» more  SIGMOD 1996»
9 years 5 months ago
Mining Quantitative Association Rules in Large Relational Tables
We introduce the problem of mining association rules in large relational tables containing both quantitative and categorical attributes. An example of such an association might be...
Ramakrishnan Srikant, Rakesh Agrawal
SIGMOD
1996
ACM
132views Database» more  SIGMOD 1996»
9 years 5 months ago
Cost-Based Optimization for Magic: Algebra and Implementation
Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...
Praveen Seshadri, Joseph M. Hellerstein, Hamid Pir...
SIGMOD
1996
ACM
131views Database» more  SIGMOD 1996»
9 years 5 months ago
Materialized View Maintenance and Integrity Constraint Checking: Trading Space for Time
We investigate the problem of incremental maintenance of an SQL view in the face of database updates, and show that it is possible to reduce the total time cost of view maintenanc...
Kenneth A. Ross, Divesh Srivastava, S. Sudarshan
SIGMOD
1996
ACM
180views Database» more  SIGMOD 1996»
9 years 5 months ago
Partition Based Spatial-Merge Join
This paper describes PBSM (Partition Based Spatial
Jignesh M. Patel, David J. DeWitt
SIGMOD
1996
ACM
109views Database» more  SIGMOD 1996»
9 years 5 months ago
Improved Histograms for Selectivity Estimation of Range Predicates
Many commercial database systems maintain histograms to summarize the contents of relations and permit efficient estimation of query result sizes and access plan costs. Although s...
Viswanath Poosala, Yannis E. Ioannidis, Peter J. H...
SIGMOD
1996
ACM
99views Database» more  SIGMOD 1996»
9 years 5 months ago
A Query Language for Multidimensional Arrays: Design, Implementation, and Optimization Techniques
While much recent research has focussed on extending databases beyond the traditional relational model, relatively little has been done to develop database tools for querying data...
Leonid Libkin, Rona Machlin, Limsoon Wong
SIGMOD
1996
ACM
120views Database» more  SIGMOD 1996»
9 years 5 months ago
Query Execution Techniques for Caching Expensive Methods
Object-Relational and Object-Oriented DBMSs allow users to invoke time-consuming ("expensive") methods in their queries. When queries containing these expensive methods a...
Joseph M. Hellerstein, Jeffrey F. Naughton
SIGMOD
1996
ACM
120views Database» more  SIGMOD 1996»
9 years 5 months ago
Implementing Data Cubes Efficiently
Decision support applications involve complex queries on very large databases. Since response times should be small, query optimization is critical. Users typically view the data ...
Venky Harinarayan, Anand Rajaraman, Jeffrey D. Ull...
SIGMOD
1996
ACM
176views Database» more  SIGMOD 1996»
9 years 5 months ago
The Dangers of Replication and a Solution
: Update anywhere-anytime-anyway transactional replication has unstable behavior as the workload scales up: a ten-fold increase in nodes and traffic gives a thousand fold increase ...
Jim Gray, Pat Helland, Patrick E. O'Neil, Dennis S...
books