We argue that designing a system that “guarantees” the privacy of its information may not be enough. One must also consider the price for providing that protection: For exampl...
On a distributed memory machine, hand-coded message passing leads to the most efficient execution, but it is difficult to use. Parallelizing compilers can approach the performance...
In this paper we propose a mediator architecture for the querying and integration of Web-accessible XML data sources. Our contributions are (i) the definition of a simple but expr...
Abstract. In this paper, we describe a new approach to information extraction that neatly integrates top-down hypothesis driven information with bottom-up data driven information. ...
Human Probes, which are human integrated or embedded with sensors, allow the acquisition of a variety of contextual information, facilitate collaborative information sharing and co...