NDLI: Discriminative training of tied mixture density HMMs for online handwritten digit recognition

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Hidden Markov model-based speech emotion recognition

Audio segmentation, classification and clustering in a broadcast news task

Classification of stress in speech using linear and nonlinear features

Mining speech: automatic selection of heterogeneous features using boosting

A fusion study in speech/music classification

Multi-linear HMM based system for articulatory feature extraction

Distinctive phonetic feature extraction for robust speech recognition

Thin client front-end processor for distributed speech recognition

Modular neural predictive coding for discriminative feature extraction

Novel robust feature extraction based on spectrally masked channel energy ratio (SMaChER) for speech recognition

Time-variant least squares harmonic modeling

Discriminative training of auditory filters of different shapes for robust speech recognition

Feature and score normalization for speaker verification of cellular data

Channel robust speaker verification via feature mapping

Improved speaker, verification over the cellular phone network using phoneme-balanced and digit-sequence-preserving connected digit patterns

The IBM system for the NIST-2002 cellular speaker verification evaluation

Vector quantization techniques for GMM based speaker verification

D-MAP: a distance-normalized MAP estimation of speaker models for automatic speaker verification

Open set text-independent speaker recognition based on set-score pattern classification

Speaker detection using multi-speaker audio files for both enrollment and test

Depitch and the role of fundamental frequency in speaker recognition

Towards domain independent speaker clustering

The ELISA consortium approaches in speaker segmentation during the NIST 2002 speaker recognition evaluation

Forensic identification reporting using automatic speaker recognition systems

Modelling uncertainty in stochastic vector mapping with minimum classification error training for robust speech recognition

A mismatch-aware stochastic matching algorithm for robust speech recognition

The impact of spectral and energy mismatch on the Aurora2 digit recognition task

On the use of wideband signal for noise robust ASR

Environmental sniffing: noise knowledge estimation for robust speech systems

A vector statistical piecewise polynomial approximation algorithm for environment compensation in telephone LVCSR

Structural speaker adaptation using maximum a posteriori approach and a Gaussian distributions merging technique

CSA-BF: novel constrained switched adaptive beamforming for speech enhancement & recognition in real car environments

Low bit-rate feature vector compression using transform coding and non-uniform bit allocation

Phase autocorrelation (PAC) derived robust speech features

Investigating recognition of children's speech

Linear equalization of the modulation spectra: a novel approach for noisy speech recognition

CELP based speech coding with fine granularity scalability

Optimizing gain codebook of LD-CELP

Hybrid MELP/CELP coding at bit rates from 6.4 to 2.4 kb/s

Joint optimization of short-term and long-term predictors in CELP speech coders

Rate adjustable speech coding by lattice quantization

LSF quantisation for pitch synchronous speech coders

A waveform extractor for scalable speech coding

A cascaded algebraic codebook structure to improve the performance of speech coder

A novel transcoding algorithm for AMR and EVRC speech codecs via direct parameter transformation

Wide band sub-band speech coding using nonlinear prediction

Super-frame based source controlled variable rate coding using approximated trellis diagram

A study of joint source-channel coding of LSP parameters for wideband speech coding

UBM-based real-time speaker segmentation for broadcasting news

Estimating number of speakers by the modulation characteristics of speech

Pitch maxima for robust speaker recognition

Co-channel speaker identification using usable speech extraction based on multi-pitch tracking

A SVM/HMM system for speaker recognition

Minimum classification error/eigenvoices training for speaker identification

Fast discriminative training for sequential observations with application to speaker identification

SVMSVM: support vector machine speaker verification methodology

Hybrid HMM/ANN and GMM combination for user-customized password speaker verification

Support vector machine fusion of idiolectal and acoustic speaker information in Spanish conversational speech

Speaker verification without background speaker models

De-pipeline a software-pipelined loop

Inspection of surface defects using optimal FIR filters

Gearbox fault diagnosis using independent component analysis in the frequency domain and wavelet filtering

Application of signal processing technology for automatic underground coal mining machinery

A DSP-based approach for the implementation of face recognition algorithms

Robust estimation of fetal heart rate variability using Doppler ultrasound

Automatic identification of lung abnormalities in chest spiral CT scans

Detection of newborn EEG seizure using optimal features based on discrete wavelet transform

Automatic classification of ECG beats using waveform shape and heart beat interval features

Heuristic structural modifications to the HMM for efficient resource utilization

Multi-stream processing using context-independent and context-dependent hybrid systems

High performance speaker and vocabulary independent ASR technology for mobile phones

A boosted multi-HMM classifier for recognition of visual speech elements

On the usage of automatic voice recognition in an interactive Web based medical application

A novel efficient decoding algorithm for CDHMM-based speech recognizer on chip

An ultra-fast Reed-Solomon decoder soft-IP with 8-error correcting capability

A high-performance embedded DSP core with novel SIMD features

Intel/spl reg/ wireless MMXTM technology: a 64-bit SIMD architecture for mobile multimedia

A low complexity architecture for complex discrete wavelet transform

High performance IDCT realization using complex arithmetic

A DVD processor with dual CPUs and integrated digital front-end for advanced DVD-based consumer appliances

A novel 64-point FF/IFFT processor for IEEE 802.11(a) standard

Sub-channel below the perceptual threshold in audio

I/Q mismatch compensation in zero-IF OFDM receivers with application to DAB

Optimized low-power synchronizer design for the IEEE 802.11a standard

Audio data hiding with application to surround sound

A performance and complexity comparison of auto-correlation and cross-correlation for OFDM burst synchronization

Fuzzy logic and scale space approach to microcalcification detection

Nonlinear separation of signature trajectories for on-line personal authentication

Real-time face verification using multiple feature combination and a support vector machine supervisor

Wavelet analysis of atrial fibrillation electrograms

Investigation of coding structure in DNA

Detecting salient changes in genomic signals

HMM-neural network monophone models for computer-based articulation training for the hearing impaired

Detection and screening of sleep apnea using spectral and time domain analysis of heart rate variability

Joint audio-video processing for biometric speaker identification

SVMs for few examples-based face recognition

A comparison of clustered microcalcifications automated detection methods in digital mammogram

Comparative performance of time-frequency based newborn EEG seizure detection using spike signatures

Factor graphs for mobile position location

Improved HRR-ATR using hybridization of HMM and eigen-template-matched filtering

Improved target detector for FLIR imagery

A piecewise parametric method based on polynomial phase model to compensate ionospheric phase contamination

Tracking multiple maneuvering point targets using multiple filter bank in infrared image sequence

An efficient implementation of multi-prime RSA on DSP processor

Scalable encryption for multimedia content access control

Audio steganography using bit modification

Recursive estimation of K-distribution parameters

An efficient SAR ATR approach

Rapid prototyping for an optimized MPEG-4 decoder implementation over a parallel heterogenous architecture

Enhanced 8-VSB transmission for North-American HDTV terrestrial broadcast

Real-time MPEG video coding with information look-ahead

A reconfigurable 100 Mchip/s spread spectrum receiver

On determining soft output of the cellular text telephone modem (CTM) demodulator

Temporel and spectral analysis of time interleaved high pass sigma delta converter

Efficient calculation of line spectral frequencies based on new method for solution of transcendental equations

Analysis of different predistortion structures and efficient least-square adaptive algorithms

Fast Kalman/LMS algorithms on the strong multipath channel

A pseudo adaptive microphone array

Comparative study of wideband single reference active noise cancellation algorithms on a fixed-point DSP

Design and implementation of a CMOS sensor based video camera incorporating a combined AWB/AEC module

Parallel high-speed architecture for EBCOT in JPEG2000

Rapid prototyping of JPEG encoder using the ASIP development system: PEAS-III

Hardware oriented rate control algorithm and implementation for realtime video coding

Performance analysis of hardware oriented algorithm modifications in H.264

Viturbo: a reconfigurable architecture for Viterbi and turbo decoding

Cooley-Tukey FFT like algorithms for the DCT

Multiplierless realization of recursive digital filters using allpass structures

An asynchronous sample-rate converter from CD to DAT

An improved stability measure for digital filter implementation

Some observations leading to multiplierless implementation of linear phase FIR filters

Energy-efficient and parameterized designs for fast Fourier transform on FPGAs

A simulation based approach for incorporating virtual components IP cores into multimedia systems design

An automated floating-point to fixed-point conversion methodology

Optimization of decision-timing for early termination of SSDA-based block matching

Short vector code generation and adaptation for DSP algorithms

Fast automatic software implementations of FIR filters

Quality based compute-resource allocation in real-time signal processing

1-D and 2-D transforms from integers to integers

Algorithmic analysis and implementation of a novel natural gradient adaptive filter for sparse systems

Comparative study of the generalized DFIIt structure and its equivalent state-space realization

Floating-point error analysis based on affine arithmetic

Fixed point error analysis of CORDIC processor based on the variance propagation

Design of space-efficient, wide- and narrow transition-band, FIR filters

Real-time sound localization using field-programmable gate arrays

An algorithm to reduce the complexity required to convolve finite length sequences using the Hirschman optimal transform (HOT)

A novel approach for diminishing and predicting the error dynamic range in finite wordlength FIR based architectures

ETSI AMR-2 VAD: evaluation and ultra low-resource implementation

New resampling algorithms for particle filters

Quality-delay-and-computation trade-off analysis of acoustic echo cancellation on general-purpose CPU

DSP implementation of a distributed acoustical beamformer on a wireless sensor platform

A high-performance multi-purpose DSP architecture for signal processing research

Crack detection system based on spectral analysis of a ultrasonic resonance signals

Implementation of adaptive beamforming based on QR decomposition for CDMA

Concurrent interleaving architectures for high-throughput channel coding

A very high density VLSI implementation of threshold network ensembles (TNE)

Implementation of a digital copier using TMS320C6414 VLIW DSP processor

High radix parallel architecture for GF(p) elliptic curve processor

Efficient interleaver memory architectures for serial turbo decoding

VLSI-implementation issues of turbo trellis-coded modulation

Architecture of a single chip acoustic echo and noise canceller using cross spectral estimation

High performance VOX prototype development and experimental results

A low-power multiplication accumulation calculation unit for multimedia applications

A recursive implementation of the dimensionless FFT

Mixed-scaling-rotation CORDIC (MSR-CORDIC) algorithm and architecture for scaling-free high-performance rotational operations

A general DSP processor at the cost of 23K gates and 1/2 a man-year design time

Low voltage, low power (5:2) compressor cell for fast arithmetic circuits

A radix-16 FFT algorithm suitable for multiply-add instruction based on Goedecker method

Fastest linearly independent arithmetic transforms over GF(3)

Angle quantization approach for lattice IIR filter implementation and its trellis de-allocation algorithm

A low-power image convolution algorithm for variable voltage processors

Semiconductor IP core for ultra low power MPEG-4 video decode in system-on-silicon

Low-power hybrid structure of digital matched filters for direct sequence spread spectrum systems

An improved parallel architecture for MPEG-4 motion estimation in 3G mobile applications

A general framework for SVD flows and joint SVD flows

On the convergence of SIPEX: a simultaneous principal components extraction algorithm

Propagation of uncertainty in Bayesian kernel models - application to multiple-step ahead forecasting

Analysis of the class of complex-valued error adaptive normalised nonlinear gradient descent algorithms

On-line one-class support vector machines. An application to signal segmentation

A new formalization of minimum classification error using a Parzen estimate of classification chance

Complex ICA for fMRI analysis: performance of several approaches

Differential learning and random walk model

Geometrically constraint ICA for convolutive mixtures of sound

A nonlinear recursive least-squares algorithm for the blind separation of finite-alphabet sources

Blind signal separation using oriented PCA neural models

Blind equalization of constant modulus signals via support vector regression

New entropy based combination rules in HMM/ANN multi-stream ASR

Robust speaker verification from GSM-transcoded speech based on decision fusion and feature transformation

Separation of stop consonants

Constraint satisfaction model for enhancement of evidence in recognition of consonant-vowel utterances

A neural network for blind identification of speech transmission index

Neural network based arithmetic coding for real-time audio transmission on the TMS320C6000 DSP platform

An FPGA-based eigenfilter using fast Hebbian learning

Geometrical understanding of the PCA subspace method for overdetermined blind source separation

Time series prediction using parametric models and multilayer perceptrons: case study on heart signals

Reconstructions and predictions of nonlinear dynamical systems by Rao-Blackwellised sequential Monte Carlo

Multi-class support vector machines: a new approach

Introduction of spatial information within the context of evidence theory

A recurrent multiscale architecture for long-term memory prediction task

Constrained gradient descent and line search for solving optimization problem with elliptic constraints

Finding the maximum modulus roots of polynomials based on constrained neural networks

A method of generating uniformly distributed sequences over [0,K], where K+1 is not a power of two

Bireciprocal lattice wave digital filters with almost linear phase response

A mixture model and EM algorithm for robust classification, outlier rejection, and class discovery

EM mixture model probability table compression

Discriminative training of tied mixture density HMMs for online handwritten digit recognition

Unsupervised clustering based reduced support vector machines

Robust cephalometric landmark identification using support vector machines

Learning features from examples for face detection

Real time face recognition system using autoassociative neural network models

Face recognition committee machine

Appearance-based neural image processing for 3-D object recognition and localization

An unified framework for shot boundary detection via active learning

Mass lesion detection with a fuzzy neural network

Volume 1 - 2003

2002 IEEE International Conference on Acoustics, Speech, and Signal Processing

2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221)

2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100)

1999 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. ICASSP99 (Cat. No.99CH36258)

Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181)

1997 IEEE International Conference on Acoustics, Speech, and Signal Processing

1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings

1995 International Conference on Acoustics, Speech, and Signal Processing

Proceedings of ICASSP '94. IEEE International Conference on Acoustics, Speech and Signal Processing

1993 IEEE International Conference on Acoustics, Speech, and Signal Processing

[Proceedings] ICASSP-92: 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing

[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing

International Conference on Acoustics, Speech, and Signal Processing

International Conference on Acoustics, Speech, and Signal Processing,

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Discriminative training of tied mixture density HMMs for online handwritten digit recognition

Content Provider	IEEE Xplore Digital Library
Author	Nopsuwanchai, R. Biem, A.
Copyright Year	2003
Description	Author affiliation: Comput. Lab., Cambridge Univ., UK (Nopsuwanchai, R.)
Abstract	This paper describes and evaluates the maximum mutual information criterion (MMI) for online unconstrained-style handwritten digit recognition based on hidden Markov models (HMMs). The study focuses on determining the best MMI optimization scheme and the HMM parameters that exhibit the most discriminative capabilities in the context of tied mixture density hidden Markov models (TDHMMs), where all HMM states share a pool of Gaussians. The experimental results show that the second-order optimization scheme is the most efficient and that although means and covariance matrix are shared by all models, they contribute the most to discrimination.
Sponsorship	IEEE Signal Process, Soc
File Size	289799
File Format	PDF
ISBN	0780376633
ISSN	15206149
DOI	10.1109/ICASSP.2003.1202492
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-04-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hidden Markov models Handwriting recognition Covariance matrix Personal digital assistants Mutual information Maximum likelihood estimation Laboratories Handheld computers Hardware Power system modeling
Content Type	Text
Resource Type	Article

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