Given a set of d dimensional objects, a skyline query finds the objects ("skyline") that are not dominated by others. However, skylines do not always provide useful query...
The AquaLogic Data Services Platform (ALDSP) is a BEA middleware platform for creating services that access and manipulate information drawn from multiple heterogeneous sources of ...
Vinayak R. Borkar, Michael J. Carey, Daniel Engova...
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...
In a city, protecting units like police cars move around and protect places such as banks and residential buildings. Different places may have different requirements in how many p...
In many modern data management settings, data is queried from a central node or nodes, but is stored at remote sources. In such a setting it is common to perform "pushstyle&qu...
Annotation is the process of supplementing data with additional information that was not part of the actual observation, but reflects post-facto comments and associations made by a...
With the explosion in the amount of semi-structured data users access and store, there is a need for complex search tools to retrieve often very heterogeneous data in a simple and ...
Given a record set D and a query score function F, a top-k query returns k records from D, whose values of function F on their attributes are the highest. In this paper, we investi...
In a data stream management system, a continuous query is processed by an execution plan consisting of multiple operators connected via the "consumer-producer" relationsh...
Data sources on the web are often accessible through web interfaces that present them as relational tables, but require certain attributes to be mandatorily selected, e.g., via a w...