ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
In this paper we present two results on reducing the peak power of orthogonal frequency division multiplexing (OFDM) symbols via constellation extension (CE). The first result is...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
The conventional approach to audio processing, based on the short-time power spectrum model, is not adequate when it comes to general audio signals. We propose an approach, justi...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
A K∗ -sparse vector x∗ ∈ RN produces measurements via linear dimensionality reduction as u = Φx∗ + n, where Φ ∈ RM×N (M < N), and n ∈ RM consists of independent ...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
In many topic identification applications, supervised training labels are indirectly related to the semantic content of the documents being classified. For example, many topical...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
An improved approach for the estimation of the frequency dependent reverberation time (RT) by means of allpass transformed filterbanks is presented. It is shown that by means of ...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
This paper proposes a technique for improving tone correctness in Thai speech synthesis based on an average voice model trained with nonprofessional speech corpus. The proposed te...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
In this paper, we develop a low-complexity message passing algorithm for joint support and signal recovery of approximately sparse signals. The problem of recovery of strictly spa...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
In many applications decisions must be made about the state of an object based on indirect noisy observation of highdimensional data. An example is the determination of the presen...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
We describe an alternative to standard nonnegative matrix factorisation (NMF) for nonnegative dictionary learning. NMF with the Kullback-Leibler divergence can be seen as maximisa...
ICASSP
2011
IEEE
13 years 4 months ago
2011
IEEE
An accurate identification dialog acts (DAs), which represent the illocutionary aspect of communication, is essential to support the understanding of human conversations. This re...