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VLDB
1998
ACM
121views Database» more  VLDB 1998»
13 years 7 months ago
Hash Joins and Hash Teams in Microsoft SQL Server
The query execution engine in Microsoft SQL Server employs hash-based algorithms for inner and outer joins, semi-joins, set operations (such as intersection), grouping, and duplic...
Goetz Graefe, Ross Bunker, Shaun Cooper
VLDB
1998
ACM
111views Database» more  VLDB 1998»
13 years 7 months ago
Expiring Data in a Warehouse
Data warehouses collect data into materialized views for analysis. After some time, some of the data may no longer be needed or may not be of interest. In this paper, we handle th...
Hector Garcia-Molina, Wilburt Labio, Jun Yang 0001
VLDB
1998
ACM
82views Database» more  VLDB 1998»
13 years 7 months ago
Resource Scheduling for Composite Multimedia Objects
Scheduling algorithms for composite multimedia presentations need to ensure that the user-defined synchronization constraints for the various presentation components are met. This...
Minos N. Garofalakis, Yannis E. Ioannidis, Banu &O...
VLDB
1998
ACM
97views Database» more  VLDB 1998»
13 years 7 months ago
Design and Analysis of Parametric Query Optimization Algorithms
Query optimizers normally compile queries into one optimal plan by assuming complete knowledge of all cost parameters such asselectivity and resourceavailability. The execution of...
Sumit Ganguly
VLDB
1998
ACM
144views Database» more  VLDB 1998»
13 years 7 months ago
Proximity Search in Databases
An information retrieval IR engine can rank documents based on textual proximityof keywords within each document. In this paper we apply this notion to search across an entire dat...
Roy Goldman, Narayanan Shivakumar, Suresh Venkatas...
VLDB
1998
ACM
180views Database» more  VLDB 1998»
13 years 7 months ago
nD-SQL: A Multi-Dimensional Language for Interoperability and OLAP
We propose a multi-dimensional language called nD-SQL with the following features: (i) nD-SQL supports queries that interoperate amongst multiple relational sources with heterogen...
Frédéric Gingras, Laks V. S. Lakshma...
VLDB
1998
ACM
204views Database» more  VLDB 1998»
13 years 7 months ago
Clustering Categorical Data: An Approach Based on Dynamical Systems
Wedescribea novel approachfor clustering collectionsof sets,andits applicationto theanalysis and mining of categoricaldata. By "categorical data," we meantableswith fiel...
David Gibson, Jon M. Kleinberg, Prabhakar Raghavan
VLDB
1998
ACM
134views Database» more  VLDB 1998»
13 years 7 months ago
Secure Buffering in Firm Real-Time Database Systems
The design of secure buffer managers for database systems supporting real-time applications with firm deadlines is studied here. We first identify the design challenges and then p...
Binto George, Jayant R. Haritsa
VLDB
1998
ACM
95views Database» more  VLDB 1998»
13 years 7 months ago
RainForest - A Framework for Fast Decision Tree Construction of Large Datasets
Classification of large datasets is an important data mining problem. Many classification algorithms have been proposed in the literature, but studies have shown that so far no al...
Johannes Gehrke, Raghu Ramakrishnan, Venkatesh Gan...
VLDB
1998
ACM
101views Database» more  VLDB 1998»
13 years 7 months ago
On Optimal Node Splitting for R-trees
The problem of finding an optimal bipartition of a rectangle set has a direct impact on query performance of dynamic R-trees. During update operations, overflowed nodes need to be...
Yván J. García, Mario A. Lopez, Scot...