Variational Bayesian inference for finite inverted Dirichlet mixture model and its application to object detection

Y Lai, Y **, W He, B Wang, J Wang… - Chinese Journal of …, 2018 - Wiley Online Library
As a variant of Finite mixture model (FMM), finite Inverted Dirichlet mixture model (IDMM)
can not avoid the conventional challenges, such as how to select the appropriate number of …

Infinite von Mises–Fisher mixture modeling of whole brain fMRI data

RE Røge, KH Madsen, MN Schmidt, M Mørup - Neural Computation, 2017 - direct.mit.edu
Cluster analysis of functional magnetic resonance imaging (fMRI) data is often performed
using gaussian mixture models, but when the time series are standardized such that the …

Modified firefly algorithm applied to image vector quantisation codebook design

V Severo, HAS Leitão, JB Lima… - International …, 2016 - inderscienceonline.com
Vector quantisation (VQ) has been used in signal processing applications, such as
steganography, watermarking and signal compression. The performance of signal …

Variational Bayesian inference for a Dirichlet process mixture of beta distributions and application

Y Lai, Y **, K **ao, B Hao, X Zhang - Neurocomputing, 2018 - Elsevier
Finite beta mixture model (BMM) has been shown to be very flexible and powerful for
bounded support data modeling. However, BMM cannot automatically select the proper …

Variational Bayesian inference for infinite Dirichlet mixture towards accurate data categorization

Y Lai, W He, Y **, J Qu, X Zhang - Wireless Personal Communications, 2018 - Springer
In this paper, we focus on a variational Bayesian learning approach to infinite Dirichlet
mixture model (VarInDMM) which inherits the confirmed effectiveness of modeling …

[HTML][HTML] Accelerating Families of Fuzzy K-Means Algorithms for Vector Quantization Codebook Design

E Mata, S Bandeira, P de Mattos Neto, W Lopes… - Sensors, 2016 - mdpi.com
The performance of signal processing systems based on vector quantization depends on
codebook design. In the image compression scenario, the quality of the reconstructed …

[HTML][HTML] Review of Performance Factors of Emotional Speaker Recognition System: Features, Feature Extraction Approaches and Databases

SK Das, U Bhattacharjee, AK Mandal - Reliability: Theory & …, 2021 - cyberleninka.ru
Emotion is a conscious mental reaction accompanied by physiological and behavior
changes in human body. In speaker authentication system, emotional state of the speaker …

Histogram Transform-based Speaker Identification

Z Ma, H Yu - arxiv preprint arxiv:1808.00959, 2018 - arxiv.org
A novel text-independent speaker identification (SI) method is proposed. This method uses
the Mel-frequency Cepstral coefficients (MFCCs) and the dynamic information among …

Estimation of the number of clusters on d-dimensional sphere

K Fujita - arxiv preprint arxiv:2011.07530, 2020 - arxiv.org
Spherical data is distributed on the sphere. The data appears in various fields such as
meteorology, biology, and natural language processing. However, a method for analysis of …

Dirichlet Mixture Model based VQ Performance Prediction for Line Spectral Frequency

Z Ma - arxiv preprint arxiv:1808.00818, 2018 - arxiv.org
In this paper, we continue our previous work on the Dirichlet mixture model (DMM)-based
VQ to derive the performance bound of the LSF VQ. The LSF parameters are transformed …