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CHI
2007
ACM
16 years 2 months ago
Exploring augmented live video streams for remote participation
Augmented video streams display information within the context of the physical environment. In contrast to Augmented Reality, they do not require special equipment, they can suppo...
Irma Lindt, Jan Herling, Jan Ohlenburg, Michael Wi...
ICALP
2009
Springer
16 years 2 months ago
Node-Weighted Steiner Tree and Group Steiner Tree in Planar Graphs
We improve the approximation ratios for two optimization problems in planar graphs. For node-weighted Steiner tree, a classical network-optimization problem, the best achievable ap...
Erik D. Demaine, MohammadTaghi Hajiaghayi, Philip ...
CIAC
2010
Springer
263views Algorithms» more  CIAC 2010»
15 years 11 months ago
The Complexity of Computing Minimal Unidirectional Covering Sets
Abstract. Given a binary dominance relation on a set of alternatives, a common thread in the social sciences is to identify subsets of alternatives that satisfy certain notions of ...
Dorothea Baumeister, Felix Brandt, Felix Fischer, ...
HYPERTEXT
2009
ACM
15 years 11 months ago
A scalable, collaborative similarity measure for social annotation systems
Collaborative annotation tools are in widespread use. The metadata from these systems can be mined to induce semantic relationships among Web objects (sites, pages, tags, concepts...
Benjamin Markines, Filippo Menczer
ASAP
2009
IEEE
143views Hardware» more  ASAP 2009»
15 years 11 months ago
Scalar Processing Overhead on SIMD-Only Architectures
—The Cell processor consists of a general-purpose core and eight cores with a complete SIMD instruction set. Although originally designed for multimedia and gaming, it is current...
Arnaldo Azevedo Filho, Ben H. H. Juurlink