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TASLP
2008
100views more  TASLP 2008»
15 years 3 months ago
Noise Tracking Using DFT Domain Subspace Decompositions
All discrete Fourier transform (DFT) domain-based speech enhancement gain functions rely on knowledge of the noise power spectral density (PSD). Since the noise PSD is unknown in a...
Richard C. Hendriks, Jesper Jensen, Richard Heusde...
CIKM
2010
Springer
15 years 3 months ago
Fast query expansion using approximations of relevance models
Pseudo-relevance feedback (PRF) improves search quality by expanding the query using terms from high-ranking documents from an initial retrieval. Although PRF can often result in ...
Marc-Allen Cartright, James Allan, Victor Lavrenko...
CORR
2008
Springer
130views Education» more  CORR 2008»
15 years 3 months ago
Spectrum Allocation in Two-Tier Networks
Abstract-- Two-tier networks, comprising a conventional cellular network overlaid with shorter range hotspots (e.g. femtocells, distributed antennas, or wired relays), offer an eco...
Vikram Chandrasekhar, Jeffrey G. Andrews
GIS
2010
ACM
15 years 3 months ago
Exploiting local node cache in top-k queries within wireless sensor networks
Top-k queries are a popular type of query in Wireless Sensor Networks. Typical solutions rely on coordinated root-tonodes and nodes-to-root messages and on maintaining filters at...
Johannes Niedermayer, Mario A. Nascimento, Matthia...
ICRA
2010
IEEE
172views Robotics» more  ICRA 2010»
15 years 3 months ago
Coordinated multi-robot real-time exploration with connectivity and bandwidth awareness
— While there has been substantial progress for multi-robot exploration of an unknown area, little attention has been given to communication, especially bandwidth constraints in ...
Yuanteng Pei, Matt W. Mutka, Ning Xi