Sciweavers

ICASSP
2009
IEEE
14 years 3 months ago
Narrowband interference mitigation in BICM OFDM systems
Orthogonal frequency division multiplexing (OFDM) is noted for its resistance to narrowband interference when equipped with forward error correction. This technique along with era...
Arun Batra, James R. Zeidler
ICASSP
2009
IEEE
14 years 3 months ago
GTD-based transceivers for decision feedback and bit loading
We consider new optimization problems for transceivers with DFE receivers and linear precoders, which also use bit loading at the transmitter. First, we consider the MIMO QoS (qual...
Ching-Chih Weng, Chun-Yang Chen, P. P. Vaidyanatha...
ICASSP
2009
IEEE
14 years 3 months ago
Summarization of large scale social network activity
This paper presents a novel social media summarization framework. Summarizing media created and shared in large scale online social networks unfolds challenging research problems....
Yu-Ru Lin, Hari Sundaram, Aisling Kelliher
ICASSP
2009
IEEE
14 years 3 months ago
Directed Markov Stationary Features for visual classification
We investigate how to effectively incorporate spatial structure information into histogram features for boosting visual classification performance motivated by recently proposed M...
Bingbing Ni, Shuicheng Yan, Ashraf A. Kassim
ICASSP
2009
IEEE
14 years 3 months ago
A tempering approach for Itakura-Saito non-negative matrix factorization. With application to music transcription
In this paper we are interested in non-negative matrix factorization (NMF) with the Itakura-Saito (IS) divergence. Previous work has demonstrated the relevance of this cost functi...
Nancy Bertin, Cédric Févotte, Roland...
ICASSP
2009
IEEE
14 years 3 months ago
Dense disparity estimation in a multi-view distributed video coding system
Distributed video coding (DVC) is a recent paradigm which aims at transferring part of the coding complexity from the encoder to the decoder. The performance of such a coding sche...
Thomas Maugey, Wided Miled, Béatrice Pesque...
ICASSP
2009
IEEE
14 years 3 months ago
Multi-microphone maximum a posteriori fundamental frequency estimation in the cepstral domain
In this work we derive a new cepstrum based maximum likelihood fundamental frequency estimator that exploits the information of multiple microphones. The new approach results in a...
Timo Gerkmann, Rainer Martin, Derya Dalga
ICASSP
2009
IEEE
14 years 3 months ago
Blind noise variance estimation for OFDMA signals
In this paper, we present two new noise variance estimation methods of OFDMA signals transmitted through an unknown multipath fading channel. We focus on blind estimation as it do...
François-Xavier Socheleau, Dominique Pastor...
ICASSP
2009
IEEE
14 years 3 months ago
Detection of sparse signals under finite-alphabet constraints
In this paper, we solve the problem of detecting the entries of a sparse finite-alphabet signal from a limited amount of data, for instance obtained by compressive sampling. While...
Zhi Tian, Geert Leus, Vincenzo Lottici
ICASSP
2009
IEEE
14 years 3 months ago
Evolution of social P2P networks based on the dynamics of heterogeneous multimedia peers
In this paper, we consider social peer-to-peer (P2P) networks, where peers are sharing their resources (i.e., multimedia content and upload bandwidth). In the considered P2P netwo...
Hyunggon Park, Mihaela van der Schaar