Sciweavers

390 search results - page 74 / 78
» Approximate Query Answering in Locally Closed Databases
Sort
View
GIS
2007
ACM
15 years 10 months ago
An interactive framework for raster data spatial joins
Many Geographic Information System (GIS) applications must handle large geospatial datasets stored in raster representation. Spatial joins over raster data are important queries i...
Wan D. Bae, Petr Vojtechovský, Shayma Alkob...
ICCV
2007
IEEE
14 years 11 months ago
Ten-fold Improvement in Visual Odometry Using Landmark Matching
Our goal is to create a visual odometry system for robots and wearable systems such that localization accuracies of centimeters can be obtained for hundreds of meters of distance ...
Zhiwei Zhu, Taragay Oskiper, Supun Samarasekera, R...
KES
2006
Springer
14 years 9 months ago
Integrated Document Browsing and Data Acquisition for Building Large Ontologies
Named entities (e.g., "Kofi Annan", "Coca-Cola", "Second World War") are ubiquitous in web pages and other types of document and often provide a simpl...
Felix Weigel, Klaus U. Schulz, Levin Brunner, Edua...
VLDB
2004
ACM
144views Database» more  VLDB 2004»
15 years 10 months ago
Preserving mapping consistency under schema changes
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
Yannis Velegrakis, Renée J. Miller, Lucian Popa
174
Voted
ICDE
2006
IEEE
193views Database» more  ICDE 2006»
15 years 11 months ago
Probabilistic Message Passing in Peer Data Management Systems
Until recently, most data integration techniques involved central components, e.g., global schemas, to enable transparent access to heterogeneous databases. Today, however, with t...
Philippe Cudré-Mauroux, Karl Aberer, Andras...