Sciweavers

10457 search results - page 282 / 2092
» Data Mapping as Search
Sort
View
PODS
2008
ACM
141views Database» more  PODS 2008»
16 years 6 months ago
On the complexity of deriving schema mappings from database instances
We introduce a theoretical framework for discovering relationships between two database instances over distinct and unknown schemata. This framework is grounded in the context of ...
Pierre Senellart, Georg Gottlob

Publication
195views
16 years 2 months ago
Detecting Motion Patterns via Direction Maps with Application to Surveillance
Detection of motion patterns in video data can be significantly simplified by abstracting away from pixel intensity values towards representations that explicitly and compactly ca...
Jacob M. Gryn, Richard P. Wildes, John K. Tsotsos
IROS
2009
IEEE
229views Robotics» more  IROS 2009»
16 years 1 months ago
3D mapping for urban service robots
— We present an approach to the problem of 3D map building in urban settings for service robots, using threedimensional laser range scans as the main data input. Our system is ba...
Rafael Valencia, Ernesto Homar Teniente Avil&eacut...
IROS
2009
IEEE
275views Robotics» more  IROS 2009»
16 years 1 months ago
A stereo vision based mapping algorithm for detecting inclines, drop-offs, and obstacles for safe local navigation
— Mobile robots have to detect and handle a variety of potential hazards to navigate autonomously. We present a real-time stereo vision based mapping algorithm for identifying an...
Aniket Murarka, Benjamin Kuipers
WICON
2008
15 years 8 months ago
Constructing accurate, space-efficient, wireless coverage maps for vehicular contexts
Wireless connectivity for vehicles is a fast-growing market, with a plethora of different network technologies already in use. Surveys of the numbers of IEEE 802.11b/g access poin...
David N. Cottingham, Robert K. Harle, Andy Hopper