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ICASSP
2011
IEEE
14 years 10 months ago
Basis pursuit for spectrum cartography
A nonparametric version of the basis pursuit method is developed for field estimation. The underlying model entails known bases, weighted by generic functions to be estimated fro...
Juan Andrés Bazerque, Gonzalo Mateos, Georg...
SIGMOD
2011
ACM
267views Database» more  SIGMOD 2011»
14 years 9 months ago
A latency and fault-tolerance optimizer for online parallel query plans
We address the problem of making online, parallel query plans fault-tolerant: i.e., provide intra-query fault-tolerance without blocking. We develop an approach that not only achi...
Prasang Upadhyaya, YongChul Kwon, Magdalena Balazi...
ACII
2007
Springer
16 years 25 days ago
Textual Affect Sensing for Sociable and Expressive Online Communication
In this paper, we address the tasks of recognition and interpretation of affect communicated through text messaging. The evolving nature of language in online conversations is a ma...
Alena Neviarouskaya, Helmut Prendinger, Mitsuru Is...
SAMT
2007
Springer
136views Multimedia» more  SAMT 2007»
16 years 23 days ago
Ontology-Driven Semantic Video Analysis Using Visual Information Objects
In this paper, an ontology-driven approach for the semantic analysis of video is proposed. This approach builds on an ontology infrastructure and in particular a multimedia ontolog...
Georgios Th. Papadopoulos, Vasileios Mezaris, Ioan...
AVSS
2003
IEEE
15 years 12 months ago
A Multi-Camera Conical Imaging System for Robust 3D Motion Estimation, Positioning and Mapping from UAVs
Over the last decade, there has been an increasing interest in developing vision systems and technologies that support the operation of unmanned platforms for positioning, mapping...
Pezhman Firoozfam, Shahriar Negahdaripour