By Professor Eliathamby Ambikairajah

Book Chapters

Thite S; Ravishankar J; Ambikairajah E; Ortiz AM, 2021, 'Work in Progress: “Embedding Graduate Skills in Online Courses”', in Visions and Concepts for Education 4.0, Springer International Publishing, pp. 98 - 105, http://dx.doi.org/10.1007/978-3-030-67209-6_11

Bhowmik K; Peng GD; Ambikairajah E; Rajan G, 2019, 'Solid Core Single-Mode Polymer Fiber Gratings and Sensors', in Handbook of Optical Fibers, pp. 1997 - 2035, http://dx.doi.org/10.1007/978-981-10-7087-7_4

Bhowmik K; Peng GD; Ambikairajah E; Rajan G, 2019, 'Solid Core Single-Mode Polymer Fiber Gratings and Sensors', in Handbook of Optical Fibers, Springer Singapore, pp. 1 - 39, http://dx.doi.org/10.1007/978-981-10-1477-2_4-2

Bhowmik K; Peng GD; Ambikairajah E; Rajan G, 2018, 'Solid Core Single-Mode Polymer Fiber Gratings and Sensors', in Handbook of Optical Fibers, Springer Singapore, pp. 1 - 39, http://dx.doi.org/10.1007/978-981-10-1477-2_4-1

Bhowmik K; Peng GD; Ambikairajah E; Rajan G, 2015, 'High sensitivity polymer fibre bragg grating sensors and devices', in Serpe MJ; Kang Y; Zhang QM (ed.), Photonic Materials for Sensing, Biosensing and Display Devices, Springer International Publishing, Springer International Publishing Switzerland 2016, pp. 289 - 312, http://dx.doi.org/10.1007/978-3-319-24990-2_10

Sethu V; Epps J; Ambikairajah E, 2015, 'Speech based emotion recognition', in Speech and Audio Processing for Coding, Enhancement and Recognition, Springer Link, pp. 197 - 228, http://dx.doi.org/10.1007/978-1-4939-1456-2_7

Ambikairajah E; Sethu V; Eaton R; Sheng M, 2014, 'Evolving use of educational technologies: Enhancing lectures', in Using Technology Tools to Innovate Assessment Reporting and Teaching Practices in Engineering Education, pp. 241 - 258, http://dx.doi.org/10.4018/978-1-4666-5011-4.ch018

Epps JR; Ambikairajah E, 2011, 'Speech characterization and feature extraction for speaker recognition', in Li H; Toh KA; Li LY (ed.), Advanced Topics in Biometrics, World Scientific Publishing Company, Singapore, pp. 45, http://www.amazon.com/Advanced-Topics-Biometrics-Haizhou-Li/dp/9814287849

Ambikairajah E; Holmes WH, 2002, 'Wideband speech and audio coding in the perceptual domain', in Wysocki TA; Darnell M; Honary B (ed.), Advanced Signal Processing for Communication Systems, Kluwer Academic Publishers, Netherlands, pp. 15 - 30

Ambikairajah E; Lennon S, 1991, 'Neural Networks for Speech Recognition', in Workshops in Computing, Springer London, pp. 163 - 177, http://dx.doi.org/10.1007/978-1-4471-3542-5_11

Ambikairajah E; Jones E; Gallery R, 1990, 'A Physiologically Based Front-End Processor for Speech Recognition', in Workshops in Computing, Springer London, pp. 275 - 291, http://dx.doi.org/10.1007/978-1-4471-3164-9_17

Journal articles

Meng H; Breebaart J; Stoddard J; Sethu V; Ambikairajah E, 2026, 'A unified deep learning framework for estimating acoustic context parameters from first order ambisonic speech recordings', EURASIP Journal on Audio, Speech, and Music Processing, 2026, pp. 13, http://dx.doi.org/10.1186/s13636-025-00443-0

Wang H; Sharma A; Mishra D; Seneviratne A; Ambikairajah E, 2025, 'Empirical Investigation on Practical Robustness of Keystroke Recognition Using WiFi Sensing for Future IoT Applications †', Future Internet, 17, http://dx.doi.org/10.3390/fi17070288

Zhang Q; Zhu H; Qian X; Ambikairajah E; Li H, 2025, 'Exploring Length Generalization for Transformer-Based Speech Enhancement', IEEE Transactions on Audio Speech and Language Processing, 33, pp. 2690 - 2704, http://dx.doi.org/10.1109/taslpro.2025.3578755

Wang H; Mishra D; Seneviratne A; Ambikairajah E, 2025, 'Analytical Model for Spatial Resolution Characterization of Keystroke Recognition Using WiFi Sensing', IEEE Wireless Communications Letters, 14, pp. 2606 - 2610, http://dx.doi.org/10.1109/LWC.2025.3576707

Wu J; Dang T; Sethu V; Ambikairajah E, 2025, 'How many raters do we need? Analyses of uncertainty in estimating ambiguity-aware emotion labels', IEEE Transactions on Affective Computing, http://dx.doi.org/10.1109/TAFFC.2025.3616071

Zhang X; Zhang Q; Liu H; Xiao T; Qian X; Ahmed B; Ambikairajah E; Li H; Epps J, 2025, 'Mamba in Speech: Towards an Alternative to Self-Attention', IEEE Transactions on Audio Speech and Language Processing, 33, pp. 1933 - 1948, http://dx.doi.org/10.1109/TASLPRO.2025.3566210

Wang H; Lai H; Goay ACY; Mishra D; Seneviratne A; Ambikairajah E, 2025, 'Passive User Profiling Using Array of Sustainable Backscatter Tags', IEEE Communications Letters, 29, pp. 1824 - 1828, http://dx.doi.org/10.1109/LCOMM.2025.3576750

Chen M; Zhang Q; Wang M; Zhang X; Liu H; Ambikairaiah E; Chen D, 2025, 'Selective State Space Model for Monaural Speech Enhancement', IEEE Transactions on Consumer Electronics, 71, pp. 5414 - 5424, http://dx.doi.org/10.1109/TCE.2024.3523297

Zhang Q; Wickramasinghe B; Ambikairajah E; Sethu V; Li H, 2025, 'Should Audio Front-Ends be Adaptive? Comparing Learnable and Adaptive Front-Ends', IEEE TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, 33, pp. 998 - 1010, http://dx.doi.org/10.1109/TASLPRO.2025.3542281

Bose D; Sethu V; Ambikairajah E, 2024, 'Continuous Emotion Ambiguity Prediction: Modeling with Beta Distributions', IEEE Transactions on Affective Computing, 15, pp. 1684 - 1695, http://dx.doi.org/10.1109/TAFFC.2024.3367371

Wu J; Dang T; Sethu V; Ambikairajah E, 2024, 'Dual-Constrained Dynamical Neural ODEs for Ambiguity-aware Continuous Emotion Prediction', Proceedings of the Annual Conference of the International Speech Communication Association Interspeech, pp. 3185 - 3189, http://dx.doi.org/10.21437/Interspeech.2024-119

Wickramasinghe B; Ambikairajah E; Sethu V; Epps J; Li H; Dang T, 2023, 'DNN controlled adaptive front-end for replay attack detection systems', Speech Communication, 154, http://dx.doi.org/10.1016/j.specom.2023.102973

Wu J; Dang T; Sethu V; Ambikairajah E, 2023, 'A Novel Markovian Framework for Integrating Absolute and Relative Ordinal Emotion Information', IEEE Transactions on Affective Computing, 14, pp. 2089 - 2101, http://dx.doi.org/10.1109/TAFFC.2022.3159782

Zhang Q; Qian X; Ni Z; Nicolson A; Ambikairajah E; Li H, 2023, 'A Time-Frequency Attention Module for Neural Speech Enhancement', IEEE ACM Transactions on Audio Speech and Language Processing, 31, pp. 462 - 475, http://dx.doi.org/10.1109/TASLP.2022.3225649

Jayawardena S; Epps J; Ambikairajah E, 2023, 'Ordinal Logistic Regression With Partial Proportional Odds for Depression Prediction', IEEE Transactions on Affective Computing, 14, pp. 563 - 577, http://dx.doi.org/10.1109/TAFFC.2020.3031300

Wu J; Dang T; Sethu V; Ambikairajah E, 2021, 'Multimodal Affect Models: An Investigation of Relative Salience of Audio and Visual Cues for Emotion Prediction', Frontiers in Computer Science, 3, http://dx.doi.org/10.3389/fcomp.2021.767767

Gunendradasan T; Ambikairajah E; Epps J; Sethu V; Li H, 2021, 'An adaptive transmission line cochlear model based front-end for replay attack detection', Speech Communication, 132, pp. 114 - 122, http://dx.doi.org/10.1016/j.specom.2021.06.004

Aboutanios E; Sethu V; Ambikairajah E; Taubman DS; Epps J, 2021, 'Teaching Signal Processing through Frequent and Diverse Design: A Pedagogical Approach', IEEE Signal Processing Magazine, 38, pp. 133 - 143, http://dx.doi.org/10.1109/MSP.2021.3057855

Arunan A; Sirojan T; Ravishankar J; Ambikairajah E, 2021, 'Real-Time Adaptive Differential Feature-Based Protection Scheme for Isolated Microgrids Using Edge Computing', IEEE Systems Journal, 15, pp. 1318 - 1328, http://dx.doi.org/10.1109/JSYST.2020.2986577

Wani TM; Gunawan TS; Qadri SAA; Kartiwi M; Ambikairajah E, 2021, 'A Comprehensive Review of Speech Emotion Recognition Systems', IEEE Access, 9, pp. 47795 - 47814, http://dx.doi.org/10.1109/ACCESS.2021.3068045

Ambikairajah A; Ambikairajah R; Ambikairajah E, 2021, 'The impact of improving feelings of relatedness on motivation and engagement for tertiary students', International Journal of Mathematical Education in Science and Technology, 52, pp. 721 - 730, http://dx.doi.org/10.1080/0020739X.2019.1703149

Celler BG; Le PN; Argha A; Ambikairajah E, 2020, 'GMM-HMM-Based Blood Pressure Estimation Using Time-Domain Features', IEEE Transactions on Instrumentation and Measurement, 69, pp. 3631 - 3641, http://dx.doi.org/10.1109/TIM.2019.2937074

Suthokumar G; Sriskandaraja K; Sethu V; Ambikairajah E; Li H, 2020, 'An analysis of speaker dependent models in replay detection', Apsipa Transactions on Signal and Information Processing, 9, http://dx.doi.org/10.1017/ATSIP.2020.9

Liyanage N; Wijenayake C; Edussooriya C; Madanayake A; Agathoklis P; Bruton LT; Ambikairajah E, 2020, 'Multi-depth filtering and occlusion suppression in 4-D light fields: Algorithms and architectures', Signal Processing, 167, http://dx.doi.org/10.1016/j.sigpro.2019.107294

Pan Z; Chua Y; Wu J; Zhang M; Li H; Ambikairajah E, 2020, 'An Efficient and Perceptually Motivated Auditory Neural Encoding and Decoding Algorithm for Spiking Neural Networks', Frontiers in Neuroscience, 13, http://dx.doi.org/10.3389/fnins.2019.01420

Celler BG; Le PN; Argha A; Ambikairajah E, 2019, 'Blood Pressure Estimation Using Time Domain Features of Auscultatory Waveforms and GMM-HMM Classification Approach', Conference Proceedings Annual International Conference of the IEEE Engineering in Medicine and Biology Society IEEE Engineering in Medicine and Biology Society Annual Conference, 2019, pp. 208 - 211, http://dx.doi.org/10.1109/EMBC.2019.8857920

Arunan A; Ravishankar J; Ambikairajah E, 2019, 'Improved disturbance detection and load shedding technique for low voltage islanded microgrids', Iet Generation Transmission and Distribution, 13, pp. 2102 - 2111, http://dx.doi.org/10.1049/iet-gtd.2018.5707

Lu S; Sirojan T; Phung BT; Zhang D; Ambikairajah E, 2019, 'DA-DCGAN: An Effective Methodology for DC Series Arc Fault Diagnosis in Photovoltaic Systems', IEEE Access, 7, pp. 45831 - 45840, http://dx.doi.org/10.1109/ACCESS.2019.2909267

Ma J; Sethu V; Ambikairajah E; Lee KA, 2018, 'Generalized variability model for speaker verification', IEEE Signal Processing Letters, 25, pp. 1775 - 1779, http://dx.doi.org/10.1109/LSP.2018.2874814

Dang T; Sethu V; Ambikairajah E, 2018, 'Compensation Techniques for Speaker Variability in Continuous Emotion Prediction', IEEE Transactions on Affective Computing, pp. 1 - 15, http://dx.doi.org/10.1109/TAFFC.2018.2883044

Malekpour M; Pouramin A; Malekpour A; Phung T; Ambikairajah E, 2018, 'Monitoring and measurement of highfrequency oscillatory transient recovery voltage of circuit breakers', Iet Science Measurement and Technology, 12, pp. 764 - 769, http://dx.doi.org/10.1049/iet-smt.2017.0305

Celler BG; Argha A; Le PN; Ambikairajah E, 2018, 'Novel methods of testing and calibration of oscillometric blood pressure monitors', Plos One, 13, pp. e0201123, http://dx.doi.org/10.1371/journal.pone.0201123

Irtza S; Sethu V; Ambikairajah E; Li H, 2018, 'Using language cluster models in hierarchical language identification', Speech Communication, 100, pp. 30 - 40, http://dx.doi.org/10.1016/j.specom.2018.04.004

Ravishankar J; Epps J; Ambikairajah E, 2018, 'A flipped mode teaching approach for large and advanced electrical engineering courses', European Journal of Engineering Education, 43, pp. 413 - 426, http://dx.doi.org/10.1080/03043797.2017.1383974

Fernando S; Sethu V; Ambikairajah E, 2018, 'Hidden variability subspace learning for adaptation of deep neural networks', Electronics Letters, 54, pp. 173 - 175, http://dx.doi.org/10.1049/el.2017.4027

Tharmakulasingam S; Lu S; Phung BT; Zhang D; Ambikairajah E, 2018, 'Sustainable Deep Learning at Grid Edge for Real-time High Impedance Fault Detection', IEEE Transactions on Sustainable Computing, pp. 1 - 1, http://dx.doi.org/10.1109/tsusc.2018.2879960

Sriskandaraja K; Sethu V; Ambikairajah E; Li H, 2017, 'Front-end for antispoofing countermeasures in speaker verification: Scattering spectral decomposition', IEEE Journal on Selected Topics in Signal Processing, 11, pp. 632 - 643, http://dx.doi.org/10.1109/JSTSP.2016.2647202

Celler BG; Le P; Basilakis J; Ambikairajah E, 2017, 'Improving the quality and accuracy of non-invasive blood pressure measurement by visual inspection and automated signal processing of the Korotkoff sounds', Physiological Measurement, 38, pp. 1006 - 1022, http://dx.doi.org/10.1088/1361-6579/aa6b7e

Ma J; Sethu V; Ambikairajah E; Lee KA, 2017, 'Duration compensation of i-vectors for short duration speaker verification', Electronics Letters, 53, pp. 405 - 407, http://dx.doi.org/10.1049/el.2016.4629

Back to profile page