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» Performance of universal codes over infinite alphabets
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IPM
2011
71views more  IPM 2011»
12 years 11 months ago
Improving semistatic compression via phrase-based modeling
In recent years, new semistatic word-based byte-oriented text compressors, such as Tagged Huffman and those based on Dense Codes, have shown that it is possible to perform fast d...
Nieves R. Brisaboa, Antonio Fariña, Gonzalo...
CORR
2008
Springer
113views Education» more  CORR 2008»
13 years 8 months ago
Rateless Coding for MIMO Block Fading Channels
In this paper the performance limits and design principles of rateless codes over fading channels are studied. The diversity-multiplexing tradeoff (DMT) is used to analyze the syst...
Yijia Fan, Lifeng Lai, Elza Erkip, H. Vincent Poor
CVPR
2009
IEEE
1599views Computer Vision» more  CVPR 2009»
15 years 3 months ago
Multi-Label Sparse Coding for Automatic Image Annotation
In this paper, we present a multi-label sparse coding framework for feature extraction and classification within the context of automatic image annotation. First, each image is ...
Changhu Wang (University of Science and Technology...
SECON
2008
IEEE
14 years 2 months ago
UDAE: Universal Data Access Engine for Sensor Networks
—We present the design and implementation of UDAE, a Universal Data Access Engine for wireless sensor networks. The UDAE allows developers to access data both locally and over th...
Krisakorn Rerkrai, Janne Riihijärvi, Petri M&...
CORR
2008
Springer
118views Education» more  CORR 2008»
13 years 8 months ago
Security for Wiretap Networks via Rank-Metric Codes
The problem of securing a network coding communication system against a wiretapper adversary is considered. The network implements linear network coding to deliver n packets from s...
Danilo Silva, Frank R. Kschischang