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CDC
2008
IEEE
152views Control Systems» more  CDC 2008»
16 years 20 days ago
Coordination on Lie groups
— This paper studies the coordinated motion of a group of agents evolving on a Lie group. Left- or rightinvariance with respect to the absolute position on the group lead to two ...
Alain Sarlette, Silvere Bonnabel, Rodolphe Sepulch...
ICIP
2007
IEEE
16 years 15 days ago
Graph-Cut Rate Distortion Algorithm for Contourlet-Based Image Compression
The geometric features of images, such as edges, are difficult to represent. When a redundant transform is used for their extraction, the compression challenge is even more dif...
Maria Trocan, Béatrice Pesquet-Popescu, Jam...
ER
2005
Springer
134views Database» more  ER 2005»
15 years 11 months ago
Spatial Relations for Semantic Similarity Measurement
Measuring semantic similarity among concepts is the core method for assessing the degree of semantic interoperability within and between ontologies. In this paper, we propose to ex...
Angela Schwering, Martin Raubal
COMPGEOM
2004
ACM
15 years 11 months ago
Pushing squares around
We study dynamic self-reconfiguration of modular metamorphic systems. We guarantee the feasibility of motion planning in a rectangular model consisting of square modules that are...
Adrian Dumitrescu, János Pach
DIALM
2004
ACM
100views Algorithms» more  DIALM 2004»
15 years 11 months ago
Virtual coordinates for ad hoc and sensor networks
In many applications of wireless ad hoc and sensor networks, position-awareness is of great importance. Often, as in the case of geometric routing, it is sufficient to have virtua...
Thomas Moscibroda, Regina O'Dell, Mirjam Wattenhof...