Sciweavers

6274 search results - page 536 / 1255
» From query complexity to computational complexity
Sort
View
COMPGEOM
2008
ACM
15 years 8 months ago
Embedding and similarity search for point sets under translation
Pattern matching in point sets is a well studied problem with numerous applications. We assume that the point sets may contain outliers (missing or spurious points) and are subjec...
Minkyoung Cho, David M. Mount
COMGEO
2000
ACM
15 years 6 months ago
Fast and accurate collision detection for haptic interaction using a three degree-of-freedom force-feedback device
We present a fast and accurate collision detection algorithm for haptic interaction with polygonal models. Given a model, we pre-compute a hybrid hierarchical representation, cons...
Arthur D. Gregory, Ming C. Lin, Stefan Gottschalk,...
CHI
2008
ACM
16 years 7 months ago
Articulating common ground in cooperative work: content and process
We study the development of common ground in an emergency management planning task. Twelve three-person multi-role teams performed the task with a paper prototype in a controlled ...
Gregorio Convertino, Helena M. Mentis, Mary Beth R...
EDBT
2010
ACM
200views Database» more  EDBT 2010»
16 years 1 months ago
Rewrite techniques for performance optimization of schema matching processes
A recurring manual task in data integration, ontology alignment or model management is finding mappings between complex meta data structures. In order to reduce the manual effor...
Eric Peukert, Henrike Berthold, Erhard Rahm
POLICY
2004
Springer
16 years 12 days ago
Cassandra: Distributed Access Control Policies with Tunable Expressiveness
We study the specification of access control policy in large-scale distributed systems. Our work on real-world policies has shown that standard policy idioms such as role hierarc...
Moritz Y. Becker, Peter Sewell