Database Systems (TODS)


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ACM Transactions on Database Systems (TODS), Volume 29 Issue 2, June 2004

A declarative approach to optimize bulk loading into databases
Sihem Amer-Yahia, Sophie Cluet
Pages: 233-281
DOI: 10.1145/1005566.1005567
Applications, such as warehouse maintenance, need to load large data volumes regularly. The efficiency of loading depends on the resources that are available at the source and at the target systems. Our work aims to understand the performance...

Expressing and optimizing sequence queries in database systems
Reza Sadri, Carlo Zaniolo, Amir Zarkesh, Jafar Adibi
Pages: 282-318
DOI: 10.1145/1005566.1005568
The need to search for complex and recurring patterns in database sequences is shared by many applications. In this paper, we investigate the design and optimization of a query language capable of expressing and supporting efficiently the search for...

Evaluating top-k queries over web-accessible databases
Amélie Marian, Nicolas Bruno, Luis Gravano
Pages: 319-362
DOI: 10.1145/1005566.1005569
A query to a web search engine usually consists of a list of keywords, to which the search engine responds with the best or "top" k pages for the query. This top-k query model is prevalent over multimedia collections in general, but...

A compressed accessibility map for XML
Ting Yu, Divesh Srivastava, Laks V. S. Lakshmanan, H. V. Jagadish
Pages: 363-402
DOI: 10.1145/1005566.1005570
XML is the undisputed standard for data representation and exchange. As companies transact business over the Internet, letting authorized customers directly access, and even modify, XML data offers many advantages in terms of cost, accuracy, and...

Proxy-based acceleration of dynamically generated content on the world wide web: An approach and implementation
Anindya Datta, Kaushik Dutta, Helen Thomas, Debra Vandermeer, Krithi Ramamritham
Pages: 403-443
DOI: 10.1145/1005566.1005571
As Internet traffic continues to grow and websites become increasingly complex, performance and scalability are major issues for websites. Websites are increasingly relying on dynamic content generation applications to provide website visitors with...