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ICASSP
2009
IEEE
8 years 2 months ago
Social correlates of turn-taking behavior
The goal of this research is to infer traits about groups of people from their turn-taking behavior in natural conversation. These traits are latent attributes in a social network...
John Grothendieck, Allen L. Gorin, Nash M. Borges
ICASSP
2009
IEEE
8 years 2 months ago
Minimum BER beamforming in the RF domain for OFDM transmissions and linear receivers
In this paper, we study transmission schemes for a novel OFDMbased MIMO system which performs adaptive signal combining in radio-frequency (RF). Specifically, we consider the prob...
Javier Vía, Victor Elvira, Ignacio Santamar...
ICASSP
2009
IEEE
8 years 2 months ago
Audiovisual celebrity recognition in unconstrained web videos
The number of video clips available online is growing at a tremendous pace. Conventionally, user-supplied metadata text, such as the title of the video and a set of keywords, has ...
Mehmet Emre Sargin, Hrishikesh Aradhye, Pedro J. M...
ICASSP
2009
IEEE
8 years 2 months ago
A MIMO-OFDM channel estimation scheme utilizing complementary sequences
We present a pilot-assisted method for estimating the frequency selective channel in a MIMO-OFDM system. The pilot sequence is designed using the DFT of the Golay complementary se...
Tariq R. Qureshi, Michael D. Zoltowski, A. Robert ...
ICASSP
2009
IEEE
8 years 2 months ago
Differential feedback of MIMO channel correlation matrices based on geodesic curves
This paper proposes a differential quantization strategy to be used in the feedback link of a multi-input-multi-output (MIMO) communication system. This algorithm is applied to th...
Daniel Sacristán-Murga, Antonio Pascual-Ise...
ICASSP
2009
IEEE
8 years 2 months ago
A game theoretical algorithm for joint power and topology control in distributed WSN
In this paper, the issue of network topology control in wireless networks using a fully distributed algorithm is considered. Whereas the proposed distributed algorithm is designed...
Pau Closas, Alba Pages-Zamora, Juan A. Ferná...
ICASSP
2009
IEEE
8 years 2 months ago
Volterra series for analyzing MLP based phoneme posterior estimator
We present a framework to apply Volterra series to analyze multilayered perceptrons trained to estimate the posterior probabilities of phonemes in automatic speech recognition. Th...
Joel Pinto, Garimella S. V. S. Sivaram, Hynek Herm...
ICASSP
2009
IEEE
8 years 2 months ago
A performance-weighted mixture of LMS filters
In this paper, we explore the use of a particular multistage adaptation algorithm for a variety of adaptive filtering applications where the structure of the underlying process to...
Suleyman Serdar Kozat, Andrew C. Singer
ICASSP
2009
IEEE
8 years 2 months ago
Log-likelihood ratio clipping in MIMO-BICM systems: Information geometric analysis and impact on system capacity
The clipping of log-likelihood ratios (LLRs) in soft demodulators for multiple-input multiple-output (MIMO) systems with bitinterleaved coded modulation (BICM) was recently observ...
Stefan Schwandter, Peter Fertl, Clemens Novak, Ger...
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