The problem of answering queries using views is to find efficient methods of answering a
query using a set of previously defined materialized views over the database, rather than …

Distributed data processing is becoming a reality. Businesses want to do it for many
reasons, and they often must do it in order to stay competitive. While much of the …

In this overview paper we motivate the need for and research issues arising from a new
model of data processing. In this model, data does not take the form of persistent relations …

We discuss the design of an acquisitional query processor for data collection in sensor
networks. Acquisitional issues are those that pertain to where, when, and how often data is …

This paper describes the basic processing model and architecture of Aurora, a new system
to manage data streams for monitoring applications. Monitoring applications differ …

In large federated and shared-nothing databases, resources can exhibit widely fluctuating
characteristics. Assumptions made at the time a query is submitted will rarely hold …

Publisher Summary Monitoring applications are those where streams of information,
triggers, real-time requirements, and imprecise data are prevalent. Traditional DBMSs are …

The development of the Internet in recent years has made it possible and useful to access
many different information systems anywhere in the world to obtain information. While there …

Interested in how an efficient search engine works? Want to know what algorithms are used
to rank resulting documents in response to user requests? The authors answer these and …

Data integration is a pervasive challenge faced in applications that need to query across
multiple autonomous and heterogeneous data sources. Data integration is crucial in large …