Sciweavers

896 search results - page 55 / 180
» Restriction categories I: categories of partial maps
Sort
View
CAE
2010
13 years 3 months ago
Interactive Volume Illustration Using Intensity Filtering
We propose a simple and interactive technique for volume illustration by using the difference between the original intensity values and a low-pass filtered copy. This difference, ...
Marc Ruiz, Imma Boada, Miquel Feixas, Mateu Sbert
CCS
2008
ACM
13 years 10 months ago
Assessing query privileges via safe and efficient permission composition
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
Sabrina De Capitani di Vimercati, Sara Foresti, Su...
CCR
2008
88views more  CCR 2008»
13 years 9 months ago
Rethinking virtual network embedding: substrate support for path splitting and migration
Network virtualization is a powerful way to run multiple architectures or experiments simultaneously on a shared infrastructure. However, making efficient use of the underlying re...
Minlan Yu, Yung Yi, Jennifer Rexford, Mung Chiang
PODS
2011
ACM
201views Database» more  PODS 2011»
12 years 11 months ago
Data exchange beyond complete data
In the traditional data exchange setting, source instances are restricted to be complete in the sense that every fact is either true or false in these instances. Although natural ...
Marcelo Arenas, Jorge Pérez, Juan L. Reutte...
TOG
2012
280views Communications» more  TOG 2012»
11 years 11 months ago
What makes Paris look like Paris?
Given a large repository of geotagged imagery, we seek to automatically find visual elements, e.g. windows, balconies, and street signs, that are most distinctive for a certain g...
Carl Doersch, Saurabh Singh, Abhinav Gupta, Josef ...