Andy W. H. Khong

Orcid: 0000-0002-0708-4791

Affiliations:
  • Nanyang Technological University, School of Electrical and Electronic Engineering, Singapore
  • Imperial College London, Department of Electrical and Electronic Engineering, UK (PhD 2005)


According to our database1, Andy W. H. Khong authored at least 136 papers between 2004 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
A Dual-Mode Grade Prediction Architecture for Identifying At-Risk Students.
IEEE Trans. Learn. Technol., 2024

Reasonable Sense of Direction: Making Course Recommendations Understandable with LLMs.
Proceedings of the 67th IEEE International Midwest Symposium on Circuits and Systems, 2024

Enhanced Student-graph Representation for At-risk Student Detection.
Proceedings of the IEEE International Symposium on Circuits and Systems, 2024

Enhancing Code-Switching Speech Recognition With Interactive Language Biases.
Proceedings of the IEEE International Conference on Acoustics, 2024

2023
An Iterative Implementation-Based Approach for Joint Source Localization and Association Under Multipath Propagation Environments.
IEEE Trans. Signal Process., 2023

Gridless DOA Estimation Using Complex-Valued Convolutional Neural Network With Phasor Normalization.
IEEE Signal Process. Lett., 2023

Investigating model performance in language identification: beyond simple error statistics.
Proceedings of the 24th Annual Conference of the International Speech Communication Association, 2023

MERLIon CCS Challenge: A English-Mandarin code-switching child-directed speech corpus for language identification and diarization.
Proceedings of the 24th Annual Conference of the International Speech Communication Association, 2023

Improving Performance of Real-Time Full-Band Blind Packet-Loss Concealment with Predictive Network.
Proceedings of the IEEE International Conference on Acoustics, 2023

Reducing Language Confusion for Code-Switching Speech Recognition with Token-Level Language Diarization.
Proceedings of the IEEE International Conference on Acoustics, 2023

Quad-Tier Entity Fusion Contrastive Representation Learning for Knowledge Aware Recommendation System.
Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, 2023

2022
Hybrid Method Based on Random Convolution Nodes for Short-Term Wind Speed Forecasting.
IEEE Trans. Ind. Informatics, 2022

Iterative Implementation Method for Robust Target Localization in a Mixed Interference Environment.
IEEE Trans. Geosci. Remote. Sens., 2022

Efficient Self-Supervised Learning Representations for Spoken Language Identification.
IEEE J. Sel. Top. Signal Process., 2022

Enhance Language Identification using Dual-mode Model with Knowledge Distillation.
CoRR, 2022

Role of Instructors to Enhance Student Experience in Undergraduate Makerspaces.
Proceedings of the IEEE International Conference on Teaching, 2022

Enhancing Language Identification Using Dual-Mode Model with Knowledge Distillation.
Proceedings of the Odyssey 2022: The Speaker and Language Recognition Workshop, 28 June, 2022

PHO-LID: A Unified Model Incorporating Acoustic-Phonetic and Phonotactic Information for Language Identification.
Proceedings of the 23rd Annual Conference of the International Speech Communication Association, 2022

Multichannel Noise Reduction Using Dilated Multichannel U-Net and Pre-Trained Single-Channel Network.
Proceedings of the IEEE International Conference on Acoustics, 2022

Tunet: A Block-Online Bandwidth Extension Model Based On Transformers And Self-Supervised Pretraining.
Proceedings of the IEEE International Conference on Acoustics, 2022

Joint Source Localization and Association Through Overcomplete Representation Under Multipath Propagation Environment.
Proceedings of the IEEE International Conference on Acoustics, 2022

Freshmen Orientation Program Using Minecraft: Designed by Students for Students during the Covid-19 Pandemic.
Proceedings of the IEEE Frontiers in Education Conference, 2022

Factors Impacting Students' Creativity-related Self-efficacy in an Undergraduate Makerspace-based Course.
Proceedings of the IEEE Global Engineering Education Conference, 2022

Toward Better Grade Prediction via A2GP - An Academic Achievement Inspired Predictive Model.
Proceedings of the 15th International Conference on Educational Data Mining, 2022

Grade Prediction via Prior Grades and Text Mining on Course Descriptions: Course Outlines and Intended Learning Outcomes.
Proceedings of the 15th International Conference on Educational Data Mining, 2022

2021
Grade Prediction From Multi-Valued Click-Stream Traces via Bayesian-Regularized Deep Neural Networks.
IEEE Trans. Signal Process., 2021

Regularized Phrase-Based Topic Model for Automatic Question Classification With Domain-Agnostic Class Labels.
IEEE ACM Trans. Audio Speech Lang. Process., 2021

End-to-End Language Diarization for Bilingual Code-Switching Speech.
Proceedings of the 22nd Annual Conference of the International Speech Communication Association, Interspeech 2021, Brno, Czechia, August 30, 2021

Directional Sparse Filtering Using Weighted Lehmer Mean for Blind Separation of Unbalanced Speech Mixtures.
Proceedings of the IEEE International Conference on Acoustics, 2021

An Adaptive Non-Linear Process for Under-Determined Virtual Microphone Beamforming.
Proceedings of the IEEE International Conference on Acoustics, 2021

2020
Directional Sparse Filtering for Blind Estimation of Under-Determined Complex-Valued Mixing Matrices.
IEEE Trans. Signal Process., 2020

Context-Based Data Model for Effective Real-Time Learning Analytics.
IEEE Trans. Learn. Technol., 2020

A Weighted Feature Extraction Technique Based on Temporal Accumulation of Learner Behavior Features for Early Prediction of Dropouts.
Proceedings of the IEEE International Conference on Teaching, 2020

Distilling Essence of a Question: A Hierarchical Architecture for Question Quality in Community Question Answering Sites.
Proceedings of the 2020 International Joint Conference on Neural Networks, 2020

Controllable Question Generation via Sequence-to-Sequence Neural Model with Auxiliary Information.
Proceedings of the 2020 International Joint Conference on Neural Networks, 2020

A Joint-Loss Approach for Speech Enhancement via Single-channel Neural Network and MVDR Beamformer.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2020

2019
A Method Based on L-bfgs to Solve Constrained Complex-valued Ica.
Proceedings of the IEEE International Conference on Acoustics, 2019

An Efficient Dilated Convolutional Neural Network for UAV Noise Reduction at Low Input SNR.
Proceedings of the 2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2019

2018
Impact Localization on Rigid Surfaces Using Hermitian Angle Distribution for Human-Computer Interface Applications.
IEEE Trans. Multim., 2018

Multisource DOA Estimation in a Reverberant Environment Using a Single Acoustic Vector Sensor.
IEEE ACM Trans. Audio Speech Lang. Process., 2018

Directional Statistics Approach Based on Instantaneous Rotational Parameters of Tri-axial Trajectories for Footstep Detection.
Circuits Syst. Signal Process., 2018

An Efficient Multi-Source DOA Estimation Algorithm for Underdetermined System.
Proceedings of the 16th International Workshop on Acoustic Signal Enhancement, 2018

Automatically Linking Digital Signal Processing Assessment Questions to Key Engineering Learning Outcomes.
Proceedings of the 2018 IEEE International Conference on Acoustics, 2018

Online Education Evaluation for Signal Processing Course Through Student Learning Pathways.
Proceedings of the 2018 IEEE International Conference on Acoustics, 2018

Hidden Markov Model for Masquerade Detection Based on Sequence Alignment.
Proceedings of the 2018 IEEE 16th Intl Conf on Dependable, 2018

2017
Swarm Intelligence Based Particle Filter for Alternating Talker Localization and Tracking Using Microphone Arrays.
IEEE ACM Trans. Audio Speech Lang. Process., 2017

Learning complex-valued latent filters with absolute cosine similarity.
Proceedings of the 2017 IEEE International Conference on Acoustics, 2017

On TOA estimation of vibration signals for localizing impacts on solid surfaces.
Proceedings of the 2017 IEEE International Conference on Acoustics, 2017

Predictive local receptive fields based respiratory motion tracking for motion-adaptive radiotherapy.
Proceedings of the 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2017

Toward the Automatic Labeling of Course Questions for Ensuring their Alignment with Learning Outcomes.
Proceedings of the 10th International Conference on Educational Data Mining, 2017

End-to-end speech emotion recognition using multi-scale convolution networks.
Proceedings of the 2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2017

2016
Sound Source Localization and Tracking.
Proceedings of the Context Aware Human-Robot and Human-Agent Interaction, 2016

Source localization on solids utilizing logistic modeling of energy transition in vibration signals.
Proceedings of the 2016 IEEE International Conference on Acoustics, 2016

Modelling the way: Using action sequence archetypes to differentiate learning pathways from learning outcomes.
Proceedings of the 9th International Conference on Educational Data Mining, 2016

2015
Speech enhancement via covariance estimation using Hermitian angle in adaptive beamforming.
Proceedings of the 2015 IEEE International Conference on Digital Signal Processing, 2015

Analysis of the noise robustness problem and a new blind channel identification algorithm.
Proceedings of the 2015 IEEE International Conference on Digital Signal Processing, 2015

Single-channel speech enhancement in a transient noise environment by exploiting speech harmonicity.
Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Multi-source direction-of-arrival estimation in a reverberant environment using single acoustic vector sensor.
Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Direction-of-arrival estimation of speech sources under aliasing conditions.
Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Noise robust source localization on solid surfaces.
Proceedings of the 10th International Conference on Information, 2015

2014
A Linear Source Recovery Method for Underdetermined Mixtures of Uncorrelated AR-Model Signals Without Sparseness.
IEEE Trans. Signal Process., 2014

Unambiguous speech DOA estimation under spatial aliasing conditions.
IEEE ACM Trans. Audio Speech Lang. Process., 2014

Multichannel Equalization in the KLT and Frequency Domains With Application to Speech Dereverberation.
IEEE ACM Trans. Audio Speech Lang. Process., 2014

A GMM Post-Filter for Residual Crosstalk Suppression in Blind Source Separation.
IEEE Signal Process. Lett., 2014

Derivative-constrained frequency-domain wideband DOA estimation.
Multidimens. Syst. Signal Process., 2014

On the performance of widely linear quaternion based MVDR beamformer for an acoustic vector sensor.
Proceedings of the 14th International Workshop on Acoustic Signal Enhancement, 2014

Adaptive multichannel equalization applied to room acoustics exploiting the sparsity of target response.
Proceedings of the IEEE International Conference on Acoustics, 2014

Source localization on solids utilizing time-frequency analysis of parameterized warped signals.
Proceedings of the IEEE International Conference on Acoustics, 2014

Misalignment analysis and insights into the performance of clipped-input LMS with correlated Gaussian data.
Proceedings of the IEEE International Conference on Acoustics, 2014

A frequency-invariant fixed beamformer for speech enhancement.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2014

2013
Insights Into MUSIC-Like Algorithm.
IEEE Trans. Signal Process., 2013

Localization of Taps on Solid Surfaces for Human-Computer Touch Interfaces.
IEEE Trans. Multim., 2013

An Adaptive Subsystem Based Algorithm for Channel Equalization in a SIMO System.
IEEE Trans. Circuits Syst. I Regul. Pap., 2013

Convergence Analysis of Narrowband Feedback Active Noise Control System With Imperfect Secondary Path Estimation.
IEEE Trans. Speech Audio Process., 2013

Speaker localization and tracking in the presence of sound interference by exploiting speech harmonicity.
Proceedings of the IEEE International Conference on Acoustics, 2013

On the use of the quaternion generalized Gaussian distribution for footstep detection.
Proceedings of the IEEE International Conference on Acoustics, 2013

A multichannel time-domain subspace approach exploiting multiple time-delays for acoustic channel equalization.
Proceedings of the IEEE International Conference on Acoustics, 2013

Underdetermined instantaneous blind source separation of sparse signals with temporal structure using the state-space model.
Proceedings of the IEEE International Conference on Acoustics, 2013

Acoustic source tracking in reverberant environment using regional steered response power measurement.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

SmartDJ: An interactive music player for music discovery by similarity comparison.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

Wideband DOA estimation in dispersive medium.
Proceedings of the 9th International Conference on Information, 2013

A preprocessing method for underdetermined convolutive blind source separation using single-source confidence measure.
Proceedings of the 9th International Conference on Information, 2013

2012
A Forced Spectral Diversity Algorithm for Speech Dereverberation in the Presence of Near-Common Zeros.
IEEE Trans. Speech Audio Process., 2012

A Fast Frequency-Domain Algorithm for Equalizing Acoustic Impulse Responses.
IEEE Signal Process. Lett., 2012

DOA estimation of wideband sources without estimating the number of sources.
Signal Process., 2012

A variable step-size multichannel equalization algorithm exploiting sparseness measure for room acoustics.
Proceedings of the 2012 IEEE International Symposium on Circuits and Systems, 2012

Convergence analysis of clipped input adaptive filters applied to system identification.
Proceedings of the Conference Record of the Forty Sixth Asilomar Conference on Signals, 2012

2011
A Touch Interface Exploiting Time-Frequency Classification Using Zak Transform for Source Localization on Solids.
IEEE Trans. Multim., 2011

Time-Reversal Approach to the Stereophonic Acoustic Echo Cancellation Problem.
IEEE Trans. Speech Audio Process., 2011

A Clipping-Based Selective-Tap Adaptive Filtering Approach to Stereophonic Acoustic Echo Cancellation.
IEEE Trans. Speech Audio Process., 2011

A Linear Neural Network-Based Approach to Stereophonic Acoustic Echo Cancellation.
IEEE Trans. Speech Audio Process., 2011

Adaptive Channel Equalization of Room Acoustics Exploiting Sparseness Constraint.
IEEE Signal Process. Lett., 2011

A wavenumber-fitting extrapolation method for FFT-based near-field acoustic holography using microphone array.
Proceedings of the IEEE International Conference on Acoustics, 2011

Equalization of multichannel acoustic system using sub-systems for speech dereverberation.
Proceedings of the IEEE International Conference on Acoustics, 2011

A study of the ambiguity problem in footstep bearing estimation using tri-axial geophone.
Proceedings of the 8th International Conference on Information, 2011

An adaptive subspace based multichannel equalization algorithm for room acoustics equalization with sparseness constraint.
Proceedings of the 8th International Conference on Information, 2011

Source localization on solids using Kullback-Leibler discrimination information.
Proceedings of the 8th International Conference on Information, 2011

2010
A touch interface exploiting the use of vibration theories and infinite impulse response filter modeling based localization algorithm.
Proceedings of the 2010 IEEE International Conference on Multimedia and Expo, 2010

Neural network based adaptive echo cancellation for stereophonic teleconferencing application.
Proceedings of the 2010 IEEE International Conference on Multimedia and Expo, 2010

Localization of acoustic source on solids: A linear predictive coding based algorithm for location template matching.
Proceedings of the IEEE International Conference on Acoustics, 2010

A clipping-based adaptive filtering approach for stereophonic acoustic echo cancellation.
Proceedings of the IEEE International Conference on Acoustics, 2010

A new partial update NLMS for stereophonic acoustic echo cancellation.
Proceedings of the 18th European Signal Processing Conference, 2010

On the conditioning of the propagation function in a near-field loudspeaker array.
Proceedings of the 18th European Signal Processing Conference, 2010

Source Localization in the Presence of Dispersion for Next Generation Touch Interface.
Proceedings of the 2010 International Conference on CyberWorlds, 2010

Improvement of Speech Source Localization in Noisy Environment Using Overcomplete Rational-Dilation Wavelet Transforms.
Proceedings of the 2010 International Conference on CyberWorlds, 2010

Footstep detection and denoising using a single triaxial geophone.
Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

Adaptive blind system identification for speech dereverberation using a priori estimates.
Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

Quadratic phase coupling analysis for infrasound vehicle detection.
Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

An efficient quasi LMS/Newton adaptive algorithm for stereophonic acoustic echo cancellation.
Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

Adaptive Blind Multichannel System Identification.
Proceedings of the Speech Dereverberation., 2010

2009
A Class of Sparseness-Controlled Algorithms for Echo Cancellation.
IEEE Trans. Speech Audio Process., 2009

Blind system identification for speech dereverberation with Forced Spectral Diversity.
Proceedings of the IEEE International Conference on Acoustics, 2009

Acoustic system equalization using channel shortening techniques for speech dereverberation.
Proceedings of the 17th European Signal Processing Conference, 2009

Selective time-reversal block solution to the stereophonic acoustic echo cancellation problem.
Proceedings of the 17th European Signal Processing Conference, 2009

Frequency-domain adaptive multidelay algorithm with sparseness control for acoustic echo cancellation.
Proceedings of the 17th European Signal Processing Conference, 2009

2008
Frequency-Domain Adaptive Algorithm for Network Echo Cancellation in VoIP.
EURASIP J. Audio Speech Music. Process., 2008

Algorithms for identifying clusters of near-common zeros in multichannel blind system identification and equalization.
Proceedings of the IEEE International Conference on Acoustics, 2008

Frequency domain selective tap adaptive algorithms for sparse system identification.
Proceedings of the IEEE International Conference on Acoustics, 2008

A lowcomplexity fast converging partial update adaptive algorithm employing variable step-size for acoustic echo cancellation.
Proceedings of the IEEE International Conference on Acoustics, 2008

A sparseness controlled proportionate algorithm for acoustic echo cancellation.
Proceedings of the 2008 16th European Signal Processing Conference, 2008

Adaptive inverse filtering of room acoustics.
Proceedings of the 42nd Asilomar Conference on Signals, Systems and Computers, 2008

2007
Selective-Tap Adaptive Filtering With Performance Analysis for Identification of Time-Varying Systems.
IEEE Trans. Speech Audio Process., 2007

A Low Delay and Fast Converging Improved Proportionate Algorithm for Sparse System Identification.
EURASIP J. Audio Speech Music. Process., 2007

A Practical Adaptive Blind Multichannel Estimation Algorithm with Application to Acoustic Impulse Responses.
Proceedings of the 15th International Conference on Digital Signal Processing, 2007

Misalignment Performance of Selective Tap Adaptive Algorithms for System Identification of Time-Varying Unknown Systems.
Proceedings of the IEEE International Conference on Acoustics, 2007

The Effect of Calibration Errors on Source Localization with Microphone Arrays.
Proceedings of the IEEE International Conference on Acoustics, 2007

2006
Stereophonic acoustic echo cancellation employing selective-tap adaptive algorithms.
IEEE Trans. Speech Audio Process., 2006

Stereophonic acoustic echo cancellation: analysis of the misalignment in the frequency domain.
IEEE Signal Process. Lett., 2006

Effect of Interchannel Coherence on Conditioning and Misalignment Performance for Stereo Acoustic ECHO Cancellation.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

Proportionate Frequency Domain Adaptive Algorithms for Blind Channel Identification.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

An extended normalized multichannel FLMS algorithm for blind channel identification.
Proceedings of the 14th European Signal Processing Conference, 2006

2005
Corrections to "Selective-Tap Adaptive Algorithms in the Solution of the Nonuniqueness Problem for Stereophonic Acoustic Echo Cancellation".
IEEE Signal Process. Lett., 2005

Selective-tap adaptive algorithms in the solution of the nonuniqueness problem for stereophonic acoustic echo cancellation.
IEEE Signal Process. Lett., 2005

A family of selective-tap algorithms for stereo acoustic echo cancellation.
Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

An improved proportionate multi-delay block adaptive filter for packet-switched network echo cancellation.
Proceedings of the 13th European Signal Processing Conference, 2005

2004
Reducing inter-channel coherence in stereophonic acoustic echo cancellation using partial update adaptive filters.
Proceedings of the 2004 12th European Signal Processing Conference, 2004


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