Sciweavers

2145 search results - page 283 / 429
» Answering Queries Using Views
Sort
View
113
Voted
PET
2007
Springer
15 years 9 months ago
Identity Trail: Covert Surveillance Using DNS
Abstract. The Domain Name System (DNS) is the only globally deployed Internet service that provides user-friendly naming for Internet hosts. It was originally designed to return th...
Saikat Guha, Paul Francis
159
Voted
PODS
2004
ACM
207views Database» more  PODS 2004»
16 years 3 months ago
Adaptive Sampling for Geometric Problems over Data Streams
Geometric coordinates are an integral part of many data streams. Examples include sensor locations in environmental monitoring, vehicle locations in traffic monitoring or battlefi...
John Hershberger, Subhash Suri
137
Voted
PODS
2008
ACM
165views Database» more  PODS 2008»
16 years 3 months ago
Data exchange and schema mappings in open and closed worlds
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
Leonid Libkin, Cristina Sirangelo
SIGMOD
1998
ACM
96views Database» more  SIGMOD 1998»
15 years 7 months ago
Wavelet-Based Histograms for Selectivity Estimation
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
Yossi Matias, Jeffrey Scott Vitter, Min Wang
145
Voted
SIAMCOMP
1998
138views more  SIAMCOMP 1998»
15 years 3 months ago
Dynamic Trees and Dynamic Point Location
This paper describes new methods for maintaining a point-location data structure for a dynamically changing monotone subdivision S. The main approach is based on the maintenance of...
Michael T. Goodrich, Roberto Tamassia