522 search results - page 23 / 105 » Answering Aggregation Queries in a Secure System Model |
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
The modeling of high level semantic events from low level sensor signals is important in order to understand distributed phenomena. For such content-modeling purposes, transformat...
IR
2006
13 years 7 months ago
2006
In this paper we describe and evaluate a Question Answering (QA) system that goes beyond answering factoid questions. Our approach to QA assumes no restrictions on the type of que...
IEEEARES
2008
IEEE
14 years 2 months ago
2008
IEEE
—In this paper we extend a model-based approach to security management with concepts and methods that provide a possibility for quantitative assessments. For this purpose we intr...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...
SOCIALCOM
2010
13 years 5 months ago
2010
Abstract--With the proliferation of internet-based social networks into our lives, new mechanisms to control the release and use of personal data are required. As a step toward thi...