Select Publications

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 AI and Cognitive Science ’90, 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

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

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

Malekpour M; Phung BT; Ambikairajah E, 2017, 'Online technique for insulation assessment of induction motor stator windings under different load conditions', IEEE Transactions on Dielectrics and Electrical Insulation, 24, pp. 349 - 358, http://dx.doi.org/10.1109/TDEI.2016.006139

Chen J; Phung T; Blackburn T; Ambikairajah E; Zhang D, 2016, 'Detection of high impedance faults using current transformers for sensing and identification based on features extracted using wavelet transform', IET Generation, Transmission and Distribution, 10, pp. 2990 - 2998, http://dx.doi.org/10.1049/iet-gtd.2016.0021

Sulong A; Gunawan TS; Khalifa OO; Kartiwi M; Ambikairajah E, 2016, 'Speech enhancement based on Wiener filter and compressive sensing', Indonesian Journal of Electrical Engineering and Computer Science, 2, pp. 367 - 379, http://dx.doi.org/10.11591/ijeecs.v2.i2.pp367-379

Bhowmik K; Peng GD; Luo Y; Ambikairajah E; Lovric V; Walsh WR; Rajan G, 2016, 'High intrinsic sensitivity etched polymer fiber Bragg grating pair for simultaneous strain and temperature measurements', IEEE Sensors Journal, 16, pp. 2453 - 2459, http://dx.doi.org/10.1109/JSEN.2016.2519531

Bhowmik K; Peng GD; Luo Y; Ambikairajah E; Lovric V; Walsh WR; Rajan G, 2016, 'Etching process related changes and effects on solid-core single-mode polymer optical fiber grating', IEEE Photonics Journal, 8, pp. 1 - 9, http://dx.doi.org/10.1109/JPHOT.2016.2524210

Thiruvaran T; Sethu V; Ambikairajah E; Li H, 2015, 'Spectral shifting of speaker-specific information for narrow band telephonic speaker recognition', Electronics Letters, http://dx.doi.org/10.1049/el.2015.3117

Bhowmik K; Peng GD; Luo Y; Ambikairajah E; Lovric V; Walsh WR; Rajan G, 2015, 'Experimental study and analysis of hydrostatic pressure sensitivity of polymer fibre Bragg gratings', Journal of Lightwave Technology, 33, pp. 2456 - 2462, http://dx.doi.org/10.1109/JLT.2014.2386346

Yap TF; Epps J; Ambikairajah E; Choi EHC, 2015, 'Voice source under cognitive load: Effects and classification', Speech Communication, 72, pp. 74 - 95, http://dx.doi.org/10.1016/j.specom.2015.05.007

Bhowmik K; Peng GD; Ambikairajah E; Lovric V; Walsh WR; Prusty BG; Rajan G, 2015, 'Intrinsic high-sensitivity sensors based on etched single-mode polymer optical fibers', IEEE Photonics Technology Letters, 27, pp. 604 - 607, http://dx.doi.org/10.1109/LPT.2014.2385875

Rajan G; Ramakrishnan M; Semenova Y; Ambikairajah E; Farrell G; Peng G-D, 2014, 'Experimental Study and Analysis of a Polymer Fiber Bragg Grating Embedded in a Composite Material', Journal of Lightwave Technology, 32, pp. 1726 - 1733, http://dx.doi.org/10.1109/JLT.2014.2311441


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