Julien Epps

I am a Senior Lecturer in Signal Processing with the School of Electrical Engineering and Telecommunications at The University of New South Wales, Sydney, Australia. I also have a joint appointment as a Senior Researcher with National ICT Australia, in the ATP Laboratory, where I work on methods for the real time measurement of cognitive load using behavioural and physiological signals. My research interests include applications of speech modelling (in particular to speaker recognition and emotion recognition from speech) and genomic signal processing (in particular sequence analysis). I have also worked on aspects of human computer interaction, including multimodal interfaces and computer-supported cooperative work.

Prospective masters or PhD students, please contact me directly at to discuss potential topics. Students looking for honours thesis topics, please consult the school database.

Academic Qualifications

B.E. (Hons), Ph.D., UNSW

PhD thesis: ″Wideband extension of narrowband speech for enhancement and coding″ (full text pdf).

Previous Research Appointments

Assistant Professor and Program Coordinator (Electrical and Telecommunications Engineering), UNSW Asia, Singapore (2007)

Senior Researcher and Project Leader, National ICT Australia (2005 - 2006)

Researcher, National ICT Australia (2004 - 2005)

Senior Research Engineer, Motorola Labs (2001 - 2003)

Postdoctoral Fellow, University of New South Wales (2000 - 2001)

Previous Visiting Research Appointments

Visiting Scientist, Human Language Technologies Department, Institute for Infocomms Research (I²R), A*STAR, Singapore (2007)

Conjoint Senior Lecturer, University of New South Wales (2004 - 2006)

Honorary Associate, University of Sydney (2004 - 2006)

Teaching Experience | Professional Activities | Research Interests | Research Grants | Publications | Patents | Industry Experience | Contact Details

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Teaching Experience

Year	University	Course	Stage	Role(s)	Classes Taught
2011	UNSW	ELEC2146 Electrical Engineering Modelling and Simulation	2	Lecturer-in-charge, new structure	12 x (2 + 1 + 3) hours
		ELEC9781 Forensic Voice Comparison	postgrad	Curriculum design (half of course), Lecturer	9 x 2 hours
2010	UNSW	ENGG1000 Engineering Design and Innovation	1	Lecturer-in-charge, innovation	11 x (1 + 3 + 2) hours
2009	UNSW	ELEC2146 Electrical Engineering Modelling and Simulation	2	Curriculum design (entire course), Lecturer-in-charge	12 x (2 + 1 + 3) hours
		ENGG1000 Engineering Design and Innovation	1	Lecturer-in-charge, new project, new lectures, lab demonstrator, mentor	10 x (1 + 3 + 2) hours
2008	UNSW	ELEC9723 Speech Processing	postgrad	Lecturer, new lectures and lab design	6 x 3 hours
		ENGG1000 Engineering Design and Innovation	1	Mentor, Lab demonstrator	12 x 5 hours
				Lecturer, Lab demonstrator	4 x 1 hour, 10 x 4 hr
2007	UNSW Asia	XELT3010 Electronics	3	Lecturer-in-charge	12 x 5 hours
		XELT3020 Signal Processing	3	Lecturer-in-charge	6 x 5 hours
2006	UNSW	ELEC9370 Digital Image Processing	postgrad	Lecturer	4 x 3 hours
		ELEC9344 Speech and Audio Processing	postgrad	Lecturer	2 x 3 hours
2005	University of Sydney	INFO4010 Multimodal User Interaction	honours	Lecturer-in-charge, curriculum design	4 x 2 hours
	UNSW	ELEC9344 Speech and Audio Processing	postgrad	Lecturer	2 x 3 hours
2004	University of Sydney	SOFT3200 Software Development Project	3	Supervisor (2 groups)
	UNSW	ELEC9344 Speech and Audio Processing	postgrad	Lecturer	2 x 3 hours
2003	UNSW	ELEC9344 Speech and Audio Processing	postgrad	Lecturer	1 x 3 hours
2002	UNSW	ELEC9342 Signal Processing and Applications	postgrad	Tutor, Lab demonstrator	14 x 1-2 hours
		ELEC9344 Speech and Audio Processing	postgrad	Lecturer	1 x 3 hours
2001	UNSW	ELEC1011 Electrical Engineering	1	Invited lecture	1 hour
		ELEC3004 Speech and Audio Processing	3	Lecture	1 hour
		ELEC9344 Speech and Audio Processing	postgrad	Lecturer, new lab design	1 x 3 hours
2000	UNSW	ELEC9345 Neural Networks and Applications	postgrad	Lecture, plus some tutorials and labs, new lab design	1 x 2 hours
		ELEC4042 Digital Signal Processing	4	Lab demonstrator, new lab design	14 x 4 hours
1999	UNSW	ELEC3017 Electrical Engineering Design	3	Lab demonstrator	14 x 6 hours
		ELEC4042 Digital Signal Processing	4	Lab demonstrator	14 x 4 hours
1998	UNSW	ELEC3017 Electrical Engineering Design	3	Lab demonstrator	14 x 6 hours
		ELEC4042 Digital Signal Processing	4	Lab demonstrator	14 x 4 hours
1997	UNSW	ELEC3017 Electrical Engineering Design	3	Lab demonstrator	14 x 6 hours

Research students

Current:	9 PhD students (5 principal, 3 joint supervisor, advisory panel member for 1 (ANU))
Past:	1 PhD student (2011, principal supervisor, now Postdoctoral Fellow at Monash University)
	1 PhD student (2009, joint sup.)
	1 PhD student (2009, now Postdoctoral Fellow in School of EE&T, UNSW)
	1 PhD student (2008, joint sup., now Associate Lecturer in School of EE&T, UNSW)
	1 PhD student (2008, joint sup., now Postdoctoral Fellow, Faculty of Health Sciences, University of Sydney)
	1 Postdoctoral Fellow (2007, joint sup., now Assistant Professor at International Islamic University Malaysia)
	1 Research Assistant (2005-2006, joint sup., now a PhD student at Edinburgh University)
	2 Masters students (2006; 2001 - now a researcher at the Media Archiving Research Laboratory, Kyoto University)
	Many honours students: 3 in 2010, 2 in 2009, 6 in 2008 (one won CISRA and EE&T Poster Competition Prizes), 1 in 2006 (USyd), 2 in 2005, 3 in 2004 (one now a PhD student at Stanford University), 6 in 2001.
	2 Taste of Research Students (2008-09) (one won NICTA Director’s Prize)

Professional Activities

Professional Societies

Member, IEEE, ISCA and ASSTA.

Editorial Duties

Guest Editor, EURASIP Journal on Advances in Signal Processing Special Issue on Emotion and Mental State Recognition from Speech

Refereeing - Journals

J. Theoretical Biology (2011), J. Time Series Analysis (2010), J. Acoust. Soc. Am. (2010), IEEE Transactions on Speech and Audio Processing (2004, 2005, 2009-2012), Speech Communication (2007 - 2010), Computer Speech and Language (2011), IEEE Transactions on Affective Computing (2010 - 2012), PLoS ONE (2010), BMC Bioinformatics (2009, 2010), Computer Methods and Programs in Biomedicine (2010), Computational Biology and Chemistry (2010), Int. J. of Data Mining and Bioinformatics (2010), EURASIP Journal on Audio, Speech and Music Processing (2009, 2011), EURASIP Journal on Advances in Signal Processing (2009), Measurement Science and Technology (2009), Biomedical Signal Processing and Control (2012), IET Electronics Letters (2005 - 2012), Int. J. on Electronics and Communications (2009), EURASIP Journal on Bioinformatics and Systems Biology (2006, 2008), Advances in Bioinformatics (2010), Int. J. on Computers and Electrical Engineering (2008 - 2009), ACM Trans. Asian Language Information Processing (2008), Physiological Measurement (2008), IEEE Journal of Selected Topics in Signal Processing (2007), Journal of Analog Integrated Circuits and Signal Processing (2005), Int. J. of Bioinformatics Research and Applications (2010).

Refereeing - Conferences

Int Conf on Acoustics, Speech and Signal Processing (ICASSP) (2011), INTERSPEECH (2008-2011), IEEE GLOBECOM (2011), Int. Conf. on Intelligent User Interfaces (2006-2007, 2011), IEEE Eng. in Medicine and Biology Conf. (2009-2011), IEEE Int. Conf. on Circuits and Systems (2009), Asia-Pacific Signal Processing Association Conference (2010-2011), IEEE Workshop on Signal Processing Education (2010), IEEE Int. Conf. on Multimedia and Expo (2009), European Signal Processing Conference (2009), IEEE Int. Conf. on Information, Communications and Signal Processing (2007, 2009), IEEE RIVF (2008), Int. Conf. on Signal Processing and Communications Systems (2008, 2009), IEEE Int. Symp. on Communications and Information Technologies (2007), IAPR Workshop on Pattern Recognition in Bioinformatics (2007), Int. Conf. on Multimodal Interfaces (2005, 2006), Int. Conf. on Human Factors in Computing Systems (CHI) (2006), IEEE Int. Workshop on Horizontal Interactive Human-Computer Systems (2006), Aust. Conference on Speech Science and Technology (2010), Aust. Conference on Human-Computer Interaction (2004), IEEE Region 10 TENCON Conference (2003), Int. Conf. on Spoken Language Processing (ICSLP) (1998).

Thesis Examination

University of Sydney PhD thesis (2009), Curtin UT PhD thesis (2008), UNSW PhD thesis (2006), two UNSW Masters theses (2005, 2001), MEngSc thesis (2007) and MPhil (2006). Many honours theses from UNSW and USyd.

Conference and Workshop Organization

Co-organiser, Int. Conf. on Multimodal Interfaces Workshop on Inferring Cognitive and Emotional States from Multimodal Measures (2011)

Technical Committee and International Liaison, IEEE Workshop on Signal Processing Education (2011)

Session Chair, Asia-Pacific Signal Processing Association Conf. (2010)

Area Coordinator and Session Chair, INTERSPEECH (2008).

Co-chair, Int. Conf. on Inf. Tech. Based Higher Education and Training: Workshop on Technologies, Methodologies and Directions for Engineering Education (2006).

Session Chair, IEEE Int. Workshop on Horizontal Interactive Human-Computer Systems (2006).

Co-chair and Co-organiser, NICTA-HCSNet Multimodal User Interaction Workshop (2005).

Programme Committee Member: 4th International Workshop on Corpora for Research on Emotion, Sentiment and Social Signals (Satellite of LREC 2012), Audio/Visual Emotion Challenge and Workshop (AVEC 2011) (part of the Int. Conf. on Affective Computing and Intelligent Interaction), IEEE Workshop on Genomic Signal Processing and Statistics (2006, 2007, 2009), IEEE Int. Conf. on Information, Communications and Signal Processing (2010), Int. Conf. on Bio-inspired Systems and Signal Processing BIOSIGNAL (2010), IEEE Int. Conf. on Bioinformatics and Bioengineering (2008), IEEE Workshop on Multimedia Signal Processing (2008), Aust. Software Eng. Conf. (2006-2007), HCSNet Workshop on the Use of Vision in HCI (VisHCI) (2006), Aust. Conf. on Human-Computer Interaction: Workshop on Supporting Awareness in Intense Distributed Collaboration (2006).

Technical Committees

Member, IEEE Signal Processing in Education Technical Committee (2011)

Seminars and Invited Talks

Epps, J., “Recognising Emotion and Mental State from Speech”, invited presentation, Beijing Institute of Technology and Beihang, Xidian and Northwestern Polytechnic Universities, June 13-16^th, 2011.

Epps, J., “Periodicity analysis of sequence data: A guide to the toolshed”, invited presentation, ANU John Curtin School of Medical Research Techniques in Computational Genomics Seminar Series, April 29^th, 2011.

Epps, J., “Emotion Recognition and Cognitive Load Measurement from Speech”, invited tutorial, Asia-Pacific Signal Processing Association Conf. (Singapore), December 14^th, 2010.

Epps, J., and Ambikairajah, E., ″Signal Processing for Genomic Sequences″, invited tutorial, 5^th IASTED Int. Conf. on Signal Processing, Pattern Recognition and Applications (Innsbruck, Austria), February 15^th, 2008.

Epps, J., ″Nuisance Attribute Projection in Speaker Recognition″, seminar, Institute for Infocomms Research, A*STAR, Singapore, December 3^rd, 2007.

Epps, J., ″Signal Processing in Biomedical Engineering″, seminar, UNSW Asia / Tan Tock Seng Hospital Seminar Series, Singapore, April 12^th, 2007.

Epps, J. ″Co-worker Awareness in Remote Collaboration over a Shared Application″, invited presentation, CSIRO Media Science Meeting, September 5^th, 2006.

Epps, J. ″ViCAT: Intense Remote Collaboration over Shared Creative Applications″, invited presentation, Sydney University Media and Technology Research Cluster Forum, March 1^st, 2006.

Epps, J. ″A Study of Integration Patterns During Multimodal Manual Gesture and Speech Input″, invited presentation, NICTA Gestural Interaction Workshop, April 27-28^th, 2005.

Epps, J. ″Fusion of Speech and Manual Gesture Recognition-Based Inputs for Multimodal HCI″, invited seminar, Smart Internet Technology CRC Research Group, March 16^th, 2005.

Chen, F., and Epps, J., ″Multimodal User Interaction″, keynote speech at IEEE Int. Conf. on Signal Processing (Beijing, China), August 31^st, 2004.

Epps, J. ″Multimodal User Interaction″, invited presentation, University of Sydney Information Visualization Research Group, March 2004.

Seminars on Introductory Signal Processing, Speech Recognition and Professional Development, The University of New South Wales, 2001 - 2004.

Scholarships and Awards

Motorola BRAVO Award for Managing Product Group Relationship during Technology Transfer (2003)

Motorola University Postgraduate Research Scholarship (1997 - 2000)

Gowrie Trust Fund Scholarship (1997 - 2000)

UNSW Co-op Scholarship (1992 - 1996)

Research Interests

Multimodal systems, speech recognition, speech and audio coding, speech enhancement, auditory modelling, signal processing, statistical machine learning, genome signal processing (microarray and sequence analysis).

Research Grants and Funding

Chen, F., Choi, E., Epps, J., and Taib, R., ″Robust Multimodal Cognitive Load Measurement″, Asian Office of Aerospace Research and Development, 2012-2013, US$120K.

Epps, J., Morrison, G., and Sethu, V., ″Construction and installation of a Forensic Voice Comparison Laboratory″, UNSW Major Research Equipment and Infrastructure Scheme, 2011, A$60K.

Epps, J., Ambikairajah, E., and Li, H., ″Joint modelling and recognition of linguistic and paralinguistic speech information″, ARC Discovery Projects, 2011-2013, A$260K

Chen, F., and Epps, J., ″Neuroergonomic research for online assessment of cognitive workload″, Asian Office of Aerospace Research and Development, 2010, US$20K

Morrison, G. S., Epps, J. R., Ambikairajah, E., Edmond, G., Gonzalez Rodriguez, J., Ramos, D., and Zhang, C., ″Making demonstrably reliable forensic voice comparison a practical everyday reality in Australia″, ARC Linkage Projects, 2010-2013, A$556K

Chen, F., Choi, E., Epps, J., and Taib, R., ″Automatic Multimodal Cognitive Load Measurement″, Asian Office of Aerospace Research and Development, 2010, US$60K

Burnham, D., Cox, F. M., Butcher, A. R., Fletcher, J. M., Wagner, M., Epps, J. R., Ingram, J. C., Arciuli, J., Togneri, R., Rose, P., Kemp, N., Cutler, A., Dale, R., Kuratate, T., Powers, D. M., Cassidy, S., Grayden, D. B., Loakes, D. E., Bennamoun, M., Lewis, T. W., Goecke, R., Best, C. T., Bird, S., Ambikairajah, E., Hajek, J. T., Ishihara, S., Kinoshita, Y., Tran, D., Chetty, G., and Onslow, M., ″The Big Australian Speech Corpus: An audio-visual speech corpus of Australian English″, ARC LIEF, 2010, A$650K. (see http://austalk.edu.au for details)

Epps, J., Ying, H., and Huttley, G., ″Investigation of nucleosome structure using signal processing based periodicity measures″, UNSW Faculty of Engineering Early Career Researcher Grant, 2009, A$30K.

Morrison, G. S., Rose, P., Ishihara, S., Ambikairajah, E., Epps, J., Thiruvaran, T., Gonzalez-Rodriguez, J, and Ramos, D., ″Development and testing of a forensic-voice comparison database for Australian English″, ANU Linkage Pilot Grant / ARC Network in Human Communication Science, 2009, A$4K.

Epps, J. R., and Ambikairajah, E., ″Speech Signal Processing Laboratory″, UNSW Major Research Equipment and Infrastructure Scheme, 2008, A$61K.

Epps, J. R., Leedham, G., Pervouchine, V., and Ambikairajah, E., ″Speaker Authentication Research Laboratory″, UNSW Asia Group Seed Funding Scheme, 2007, SGP$38.6K (A$31K).

Ambikairajah, E., and Epps, J. R., ″Genomic signal processing and statistics: New approaches to gene and exon prediction in DNA sequence analysis″, UNSW Faculty of Engineering Research Grant, 2007, A$30K.

NICTA research project funding and leadership:

Epps, J., ″Braccetto: Intense Remote Collaboration over a Shared Workspace″, Endorsed by NICTA Research Management Coordination Committee, 2006-2009, ~A$450K p.a. (NICTA portion of proposal: Kellar, B, Vernik, R., Epps, J., and Schremmer, C., ″HxI: [braccetto] Business Case″, 2006-2009, ~A$2.5m p.a.)

Project leader, ″Visualisation and Interaction on a Collaborative Access Table″, 2005-2006, ~A$380K p.a.

Ambikairajah, E., and Epps, J. R., ″New approaches for the analysis of microarray gene expression data and DNA sequences using digital signal processing techniques″, UNSW Goldstar Award, 2005, A$30K.

Epps, J., and Chen, F., Funding support from ARC Network in Human Communication Science for NICTA-HCSNet MMUI Workshop 2005, A$10K.

Publications

Book Chapters

[1]nnEpps, J., and Ambikairajah, E., ″Speech characterization and feature extraction for speaker recognition″, in Li, G, Toh, K.-A., and Li, H. (eds), Advanced Topics in Biometrics, World Scientific, 2011, ISBN 978-981-4287-84-5.

Editorials

[1]nnEpps, J, Schuller, B., Cowie, R., Narayanan, S., and Tao, J., ″Emotion and Mental State Recognition from Speech″, EURASIP J. Advances in Signal Processing, 2012.

Edited Conference Proceedings

[1]nnChen, F., and Epps, J, Proceedings of MMUI 2005 (NICTA-HCSNet Multimodal User Interaction Workshop), Conf. in Research and Practice in Information Technology, vol. 57, 2006, ISBN 1-920-68239-2.

Refereed Journal Articles

[19]nEpps, J., Ying, H., and Huttley, G. A., ″Statistical Methods for Detecting Periodic Fragments in DNA Sequence Data″, Biology Direct, vol. 6, no. 21, 2011. (most highly accessed Biology Direct article during May 2011)

[18]nLe, P., Ambikairajah, E., Epps, J., Sethu, V., and Choi, E. H. C., ″Investigation of Spectral Centroid Features for Cognitive Load Classification″, Speech Communication, vol. 54, no. 4, 2011, pp. 540-551.

[17]nYap, T. F., Epps, J., Ambikairajah, E., and Choi, E. H. C., ″Formant Frequencies Under Cognitive Load: Effects and Classification″, EURASIP J. Advances in Signal Processing, 2011.

[16]nChung, L. J., Sen, D. and Epps, J., ″Inter-Band Mutual Information in Blind Audio Bandwidth Extension″, J. Audio Eng. Soc., vol. 58, no. 11, Nov. 2010, pp. 952-965.

[15]nVinh, N. X., Epps, J., and Bailey, J., ″Information Theoretic Measures for Clusterings Comparison: Variants, Properties, Normalization and Correction for Chance″, J. Machine Learning Research, vol. 11, 2010, pp. 2837-2854.

[14]nYing, H., Epps, J., Williams, R., and Huttley, G., ″Evidence that localised variation in primate sequence divergence arises from an influence of nucleosome placement on DNA repair″, Molecular Biology and Evolution, vol. 27, no. 3, March 2010, pp. 637-649.

[13]nNosratighods, M., Ambikairajah, E., Epps, J., and Carey, M., ″A Segment Selection Technique for Speaker Verification″, to appear in Speech Communication, vol. 52, 2010, pp. 753-761.

[12]nGunawan, T. S., Ambikairajah, E.., and Epps, J., ″Perceptual Speech Enhancement Exploiting Temporal Masking Properties of Human Auditory System″, Speech Communication, vol. 52, no. 5, May 2010, pp. 381-393.

[11]nEpps, J., ″Fast approximate computation of non-uniform DFTs for biological sequence analysis″, IET Electronics Letters, vol. 45, no. 8, 2009, pp. 429-430.

[10]nThiruvaran, T., Nosratighods, M., Ambikairajah, E., and Epps, J., ″Computationally efficient frame-averaged FM feature extraction for speaker recognition″, IET Electronics Letters, vol. 45, no. 6, 2009, pp. 335-337.

[9]nnEpps, J., ″A Hybrid Technique for Periodicity Characterisation of Genomic Sequence Data″, EURASIP J. Bioinformatics and Systems Biology, vol. 2009, Article ID 924601, 2009.

[8]nnAkhtar, M., Epps, J., and Ambikairajah, E., ″Signal Processing in Sequence Analysis: Advances in Eukaryotic Gene Prediction″, IEEE J. Selected Topics in Signal Processing, vol. 2, no. 3, June 2008, pp. 310-321.

[7]nnThiruvaran, T., Ambikairajah, E., and Epps, J., ″Extraction of FM components from speech signals using an all-pole model″, IET Electronics Letters, vol. 44, no. 6, March 2008, pp. 449-450.

[6]nnGunawan, T. S., Epps, J., and Ambikairajah, E., ″A Boosting Approach to Exon Detection in DNA Sequences″, IET Electronics Letters, vol. 44, no. 4, 2008, pp. 323-324.

[5]nnSong, L., and Epps, J., ″Classifying EEG for Brain-Computer Interface: Learning Optimal Filters for Dynamical System Features″, J. Computational Intelligence and Neuroscience, 2007.

[4]nnEpps, J. R., Ambikairajah, E., and Thiruvaran, T., ″Robust FM demodulation of discrete-time signals using a least squares differential ratio″, IET Electronics Letters, vol. 43, no. 13, June 2007, pp. 727-729. (errata)

[3]nnAmbikairajah, E., Epps, J., and Sheng, M., ″Signal Processing Education using the Tablet PC and Electronic Whiteboard″, IEEE Signal Processing Magazine, vol. 24, iss. 1., January 2007, pp. 130-133 (invited paper).

[2]nnEpps, J. R., and Holmes, W. H., ″Coding wideband speech at narrowband bit rates″, Acoustics Australia, vol. 29, no. 1, April 2001, pp. 13-16.

[1]nnEpps, J., Smith, J. R., and Wolfe, J., ″A novel instrument to measure acoustic resonances of the vocal tract during speech″, Measurement Science and Technology, vol. 8, 1997, pp. 1112-1121.

Refereed Conference Proceedings

[63]nDing, N., Sethu, V., Epps, J., and Ambikairajah, E. ″Speaker variability in emotion recognition – An adaptation based approach″, to appear in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Kyoto, Japan), 2012.

[62]nHuang, C. C., and Epps, J., ″A study of automatic phone segmentation for forensic voice comparison″, to appear in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Kyoto, Japan), 2012.

[61]nZarjam, P., Epps, J., and Chen, F., ″Spectral EEG Features for Evaluating Cognitive Load″, in Proc. IEEE Engineering in Medicine and Biology Conference (Boston, MA), 2011, pp. 3841-3844.

[60]nCummins, N., Epps, J., Breakspear, M., and Goecke, R., ″An Investigation of Depressed Speech Detection: Features and Normalization″, in Proc. INTERSPEECH (Florence, Italy), 2011.

[59]nBurnham, D., Estival, D., Fazio, S., Cox, F., Dale, R., Viethen, J., Cassidy, S., Epps, J., Tognieri, R., Kinoshita, Y., Goecke, R., Arciuli, J., Onslow, M., Lewis, T., Butcher, A., Hajek, J., and Wagner, M., ″Building an audio-visual corpus of Australian English: large corpus collection with an economical portable and replicable Black Box″, in Proc. INTERSPEECH (Florence, Italy), 2011.

[58]nKnoll, A., Wang, Y., Chen, F., Xu, J., Ruiz, N., Epps, J., and Zarjam, P., ″Measuring Cognitive Workload with Low-Cost Electroencephalograph″, in Proc. INTERACT (Lisbon, Portugal), 2011.

[57]nKua, J. M. K., Ambikairajah, E., Epps, J., and Togneri, R., ″Speaker Verification using Sparse Representation Classification″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Prague, Czech Republic), 2011, pp. 4548-4551.

[56]nKua, J. M. K., Epps, J., Nosratighods, M., Ambikairajah, E., and Choi, E. H. C., ″Using Clustering Comparison Measures for Speaker Recognition″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Prague, Czech Republic), 2011, pp. 5452-5455.

[55]nYap, T. F., Epps, J., Ambikairajah, E., and Choi, E. H. C., ″Voice Source Features for Cognitive Load Classification″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Prague, Czech Republic), 2011, pp. 5700-5703.

[54]nChen, S., Epps, J., Ruiz, N., and Chen, F., ″Eye activity as a measure of human mental effort in HCI″, in Proc. Int. Conf. on Intelligent User Interfaces (Palo Alto, CA), 2011.

[53]nYu, K., Epps, J., and Chen, F., ″Cognitive Load Evaluation of Handwriting Using Stroke-level Features″, in Proc. Int. Conf. on Intelligent User Interfaces (Palo Alto, CA), 2011.

[52]nAmbikairajah, E., and Epps, J., ″Project-based learning in digital signal processing: Development and experiences″, in Proc. IEEE Workshop on Signal Processing Education (Sedona, AZ), 2011.

[51]nVinh, N. X., and Epps, J., ″minCEntropy: a Novel Information Theoretic Approach for the Generation of Alternative Clusterings″, in Proc. IEEE Int. Conf. on Data Mining (Sydney, Australia), 2010.

[50]nYap, T. F., Epps, J., Ambikairajah, E., and Choi, E. H. C., ″An Investigation of Formant Frequencies for Cognitive Load Classification″, in Proc. INTERSPEECH (Makuhari, Japan), 2010.

[49]nKua, J. M. K., Thiruvaran, T., Nosratighods, M., Ambikairajah, E., and Epps, J., ″Spectral centroid amplitude and frequency for speaker recognition″, in Proc. Odyssey: The Speaker and Language Recognition Workshop (Brno, Czech Repulic), 2010.

[48]nMorrison, G., Thiruvaran, T., and Epps, J., ″Estimating the Precision of the Likelihood-Ratio Output of a Forensic-Voice-Comparison System″, in Proc. Odyssey: The Speaker and Language Recognition Workshop (Brno, Czech Repulic), 2010.

[47]nLe, P., Epps, J., Choi, E., and Ambikairajah, E., ″A Study of Voice Source and Vocal Tract Filter Based Features in Cognitive Load Classification″, in Proc. IEEE Int. Conf. on Pattern Recognition (Istanbul, Turkey), 2010.

[46]nYap, T. F., Epps, J., Choi, E., and Ambikairajah, E., ″Glottal features for speech-based cognitive load classification″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Dallas, TX), 2010, pp. 5234 - 5237.

[45]nKua, J. M. K., Epps, J., and Ambikairajah, E., ″LS Regularization of Group Delay Features for Speaker Recognition″, in Proc. INTERSPEECH (Brighton, UK), 2009, pp. 2287-2890.

[44]nThiruvaran, T., Ambikairajah, E., and Epps, J., ″Analysis of band structures for speaker-specific information in FM feature extraction″, in Proc. INTERSPEECH (Brighton, UK), 2009.

[43]nSethu, V., Ambikairajah, E., and Epps, J., ″Pitch Contour Parameterisation based on Linear Stylisation for Emotion Recognition″, in Proc. INTERSPEECH (Brighton, UK), 2009.

[42]nVinh, N. X., Epps, J., and Bailey, J., ″Information Theoretic Measures for Clusterings Comparison: Is a Correction for Chance Necessary?″, in Proc. Int. Conf. on Machine Learning (Montreal, Canada), 2009.

[41]nVinh, N. X., and Epps, J., ″A Novel Approach for Automatic Number of Clusters Detection in Microarray Data based on Consensus Clustering″, in Proc. IEEE Int. Conf. on Bioinformatics and Bioengineering (Taipei, Taiwan), 2009.

[40]nLi, H., Ma, B., Lee, K.-A., Sun, H., Zhu, D., Sim, K. C., You, C., Tong, R., Karkkainen, I., Huang, C.-L., Pervouchine, V., Guo, W., Li, Y., Dai, L., Nosratighods, M., Tharmarajah, T., Epps, J., Ambikairajah, E., Chng, E.-S., Schultz, T., Jin, Q., ″The I4U system in NIST 2008 speaker recognition evaluation″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Taipei, Taiwan), 2009, pp. 4201-4204.

The I4U submission was ranked among the top few of 46 in the NIST SRE 2008.

[39]nNosratighods, M., Thiruvaran, T., Epps, J., Ambikairajah, E., Ma, B., Li, H., ″Evaluation of a Fused FM and Cepstral-Based Speaker Recognition System on the NIST 2008 SRE″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Taipei, Taiwan), 2009, pp. 4233-4236.

[38]nSethu, V., Ambikairajah, E., and Epps, J., ″Speaker dependency of spectral features and speech production cues for automatic emotion classification″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Taipei, Taiwan), 2009, pp. 4693-4696.

[37]nMaunder, D. J., Ambikairajah, E., Epps, J., and Celler, B., ″Dual-Microphone Sounds of Daily Life Classification for Telemonitoring in a Noisy Environment″, in Proc. IEEE Engineering in Medicine and Biology Conference (Vancouver, Canada), 2008.

[36]nThiruvaran, T., Ambikairajah, E., and Epps, J., ″FM Features for Forensic Speaker Recognition″, in Proc. INTERSPEECH (Brisbane, Aust.), 2008, pp. 1497-1500.

[35]nSethu, V., Ambikairajah, E., and Epps, J., ″Phonetic and Speaker Variations in Automatic Emotion Classification″, in Proc. INTERSPEECH (Brisbane, Aust.), 2008, pp.617-620.

S. Vidhyasaharan won the ASSTA New Researcher Award 2008 with this paper.

[34]nEpps, J., Ambikairajah, E., and Akhtar, M., ″An Integer Period DFT for Biological Sequence Processing″, in Proc. IEEE Workshop on Genomic Signal Processing and Statistics (Phoenix, AZ), 2008.

[33]nSethu, V., Ambikairajah, E., and Epps, J., ″Empirical Mode Decomposition Based Weighted Frequency Feature for Speech-Based Emotion Classification″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Las Vegas, NV), 2008, pp. 5017-5020.

[32]nAkhtar, M., Ambikairajah, E., and Epps, J., ″Optimizing Period-3 Methods for Eukaryotic Gene Prediction″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Las Vegas, NV), 2008, pp. 621-624.

[31]nAmbikairajah, E., Epps, J., and Freney, S. J., ″A Self-Directed Learning Approach to Signal Processing Education″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Las Vegas, NV), 2008, pp. 2645-2648.

[30]nSethu, V., Ambikairajah, E., and Epps, J., ″Group Delay Features for Emotion Detection″, in Proc. 9th European Conference on Speech Communication and Technology (EUROSPEECH), (Antwerp, Belgium), 2007, pp. 2273-2276.

[29]nThiruvaran, T., Ambikairajah, E., and Epps, J., ″Normalization of Modulation Features for Speaker Recognition″, in Proc. IEEE Int. Conf. on Digital Signal Processing (Cardiff, UK), 2007, pp. 599-602.

[28]nAkhtar, M., Ambikairajah, E., and Epps, J., ″GMM-Based Classification of Genomic Sequences″, in Proc. IEEE Int. Conf. on Digital Signal Processing (Cardiff, UK), 2007, pp. 103-106.

[27]nSethu, V., Ambikairajah, E., and Epps, J., ″Speaker Normalization of Speech-Based Emotion Recognition″, in Proc. IEEE Int. Conf. on Digital Signal Processing (Cardiff, UK), 2007, pp. 611-614.

[26]nAkhtar, M., Epps, J., and Ambikairajah, E., ″On DNA Numerical Representations for Period-3 Based Exon Prediction″, in Proc. IEEE Workshop on Genomic Signal Processing and Statistics (Tuusula, Finland), 2007, pp. 1-4.

[25]nEpps, J., and Close, B. S., ″A Study of Co-worker Awareness in Remote Collaboration over a Shared Application″, in Proc. ACM Int. Conf. on Human Factors in Computing Systems (San Jose, CA), 2007, pp. 2363-2368.

[24]nNosratighods, M., Ambikairajah, E., Epps, J., and Carey, M., ″P-Value Segment Selection Technique for Speaker Verification″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Hawaii, US), vol. IV, 2007, pp. 269-272.

[23]nAkhtar, M., Epps, J., and Ambikairajah, E., ″Time and Frequency Domain Methods for Gene and Exon Prediction in Eukaryotes″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Hawaii, US), vol. II, 2007, pp. 573-576.

[22]nNosratighods, M., Ambikairajah, E., and Epps, J., ″Speaker Verification using a Novel Set of Dynamic Features″, in Proc. IEEE Int. Conf. Pattern Recognition (Hong Kong, China), 2006.

[21]nLogeswaran, S., Ambikairajah, E., and Epps, J., ″Computational Identification of Short Initial Exons″, in Proc. Workshop on Pattern Recognition in Bioinformatics (Hong Kong, China), 2006, pp. 42-48.

[20]nSong, L., and Epps, J., ″Classifying EEG for Brain-Computer Interfaces: Learning Optimal Filters for Dynamical System Features″, in Proc. Int. Conf. on Machine Learning (Pittsburgh, PA), 2006.

[19]nLogeswaran, S., Ambikairajah, E., and Epps, J., ″A Method for Detecting Short Initial Exons″, in Proc. IEEE Workshop on Genomic Signal Processing and Statistics (College Station, Texas), 2006, pp. 61-62.

[18]nEpps, J., Lichman, S., and Wu, M., ″A Study of Hand Shape Use in Tabletop Gesture Interaction″, in Proc. ACM Int. Conf. on Human Factors in Computing Systems (Montreal, Canada), 2006.

[17]nSong, L., and Epps, J., ″Improving Separability of EEG Signals during Motor Imagery with an Efficient Circular Laplacian″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Toulouse, France), vol. II, 2006, pp. 1048-1051.

[16]nAllen, F., Ambikairajah, E., and Epps, J., ″Warped Magnitude and Phase-Based Features for Language Identification″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Toulouse, France), vol. I, 2006, pp. 201-204.

[15]nAllen, F., Ambikairajah, E., and Epps, J., ″Language Identification using the Warped Shifted Delta Cepstrum″, in Proc. 7th IEEE Int. Workshop on Multimedia Sig. Proc. (Shanghai, China), 2005.

[14]nChen, F., Choi, E., Epps, J., Lichman, S., Ruiz, N., Shi, Y., Taib, R., and Wu, M., ″A study of manual gesture-based selection for the PEMMI multimodal transport management interface″, in Proc. Int. Conf. on Multimodal Interfaces (Trento, Italy), 2005, pp. 274-281.

[13]nEpps, J., and Choi, E., ″An Energy Search Approach to Variable Frame Rate Front-End Processing for Robust ASR″, in Proc. 9th European Conference on Speech Communication and Technology (EUROSPEECH), (Lisbon, Portugal), 2005, pp. 2613-2616. (corrected version)

[12]nAmbikairajah, E., Epps, J., Sheng, M., Celler, B., and Chen, P., ″Experiences with an Electronic Whiteboard Teaching Laboratory and Tablet PC-Based Lecture Presentations″, in Proc. IEEE Int. Conf. on Acoust., Speech and Sig. Proc. (Philadephia, PA), vol. V, 2005, pp. 565-568.

[11]nEpps, J., Oviatt, S., and Chen, F., ″Integration of Speech and Gesture Inputs during Multimodal Interaction″, in Proc Aust. Int. Conf. on Computer-Human Interaction (Wollongong, Australia), 2004. (pdf

)

[10]nGunawan, T. S., Ambikairajah, E., and Epps, J., ″Perceptual Wavelet Packet Audio Coder″, in Proc. Int. Conf. on Spoken Language Processing (Cheju, Korea), 2004, pp. 283-286.

[9]nnEpps, J., and Ambikairajah, E., ″Use of the discrete cosine transform for gene expression data analysis″, in Proc. IEEE Workshop on Genomic Signal Processing and Statistics (Baltimore, Maryland), 2004. (pdf)

[8]nnChoi, E., Holter, T., Epps, J., and Gopalakrishnan, A., ″Temporal structure constrained transformation for speaker adaptation″, in Proc IEEE Int. Conf. on Acoustics, Speech and Signal Processing (Hong Kong, China), vol. 1, 2003, pp. 564-567.

[7]nnAmbikairajah, E., Epps, J., Sheng, M., and Celler, B., ″Evaluation of a virtual teaching laboratory for signal processing education″, in Proc IEEE Int. Conf. on Acoustics, Speech and Signal Processing (Hong Kong, China), vol. 3, 2003, pp. 757-760.

[6]nnThomson, M., Boland, S., Smithers, M., Wu, M. and Epps, J., ″Decomposition of speech into voiced and unvoiced components based on a state-space signal model″, in Proc IEEE Int. Conf. on Acoustics, Speech and Signal Processing (Hong Kong, China), vol. 1, 2003, pp. 160-163.

[5]nnAmbikairajah, A., Epps, J. and Lin, L., ″Wideband speech and audio coding using gammatone filter banks″, in Proc IEEE Int. Conf. on Acoustics, Speech and Signal Processing (Salt Lake City, U.S.), 2001, pp. 773-776.

[4] nnEpps, J. and Holmes, W. H., ″A new very low bit rate wideband speech coder with a sinusoidal highband model″, in Proc. IEEE Int. Symp. on Circuits and Systems (Sydney, Aust.), vol. II, 2001, pp. 349-352

[3] nnEpps, J. and Holmes, W. H., ″A new technique for wideband enhancement of narrowband speech″, in Proc. IEEE Speech Coding Workshop (Porvoo, Finland), 1999, pp. 371-374.

[2] nnEpps, J. and Holmes, W. H., ″Speech enhancement using STC-based bandwidth extension″, in Proc. International Conference on Spoken Language Processing (Sydney, Aust.), 1998, pp. 519-522. (pdf)

[1] nnEpps, J., Dowd, A., Smith, J. and Wolfe, J., ″Real time measurements of the vocal tract resonances during speech″, in Proc. EUROSPEECH  (Rhodes, Greece), 1997, vol. 2, pp. 721-724. (html)

Refereed Minor Conference Proceedings

[51]nZarjam, P., Epps, J., and Lovell, N., ″Characterizing Mental Load in an Arithmetic Task Using Entropy-Based Features″, to appear in Proc. IEEE Int. Symp on Sig. Proc. and its Appl. (Montreal, Canada), 2012.

[50]nAlgowinem, S., Goecke, R., Wagner, M., Epps, J., Breakspear, M., and Parker, G., ″From Joyous to Clinically Depressed: Mood Detection Using Spontaneous Speech″, to appear in Proc. Conf. of the Florida Artificial Intelligence Research Society, (Marco Island, Florida), 2012.

[49]nYu, K., Epps, J., and Chen, F., ″ Cognitive Load Measurement with Pen Orientation and Pressure″, in Proc. Int. Conf. on Multimodal Interfaces Workshop on Inferring Cognitive and Emotional States from Multimodal Measures, (Alicante, Spain), 2011.

[48]nChen, S., Epps, J., and Chen, F., ″A Comparison of Four Methods for Cognitive Load Measurement″, in Proc. Aust. Int. Conf. on Computer-Human Interaction (Canberra, Australia), 2011.

[47]nZarjam, P., Epps, J., and Chen, F., ″Characterizing Working Memory Load Using EEG Delta Activity″, in Proc. EUSIPCO (Barcelona, Spain), 2011, pp. 1554-1558.

[46]nZarjam, P., Epps, J., and Chen, F., ″Evaluation of Working Memory Load using EEG Signals″, in Proc. Asia-Pacific Signal Processing Association Conf. (Singapore), 2010.

[45]nKua, J. M. K., Epps, J., Ambikairajah, E., and Nosratighods, M.,, ″Front-end Diversity in Fused Speaker Recognition Systems″, in Proc. Asia-Pacific Signal Processing Association Conf. (Singapore), 2010.

[44]nLe, P., Epps, J., Ambikairajah, E., and Sethu, V., ″Robust Speech-Based Cognitive Load Classification Using a Multi-band Approach″, in Proc. Asia-Pacific Signal Processing Association Conf. (Singapore), 2010.

[43]nMorrison, G., Thiruvaran, T., and Epps, J., ″An issue in the calculation of logistic-regression calibration and fusion weights for forensic voice comparison″, in Proc. 13^th Conf. on Speech Science and Technology (Melbourne), 2010.

[42]nYap, T. F., Ambikairajah, E., Epps, J., and Choi, E., ″Cognitive Load Classification Using Formant Features″, in Proc. IEEE 8th Int. Symp on Sig. Proc. and its Appl. (Kuala Lumpur, Malaysia), 2010.

[41]nBurnham, D., Ambikairajah, E., Arciuli, J., Bennamoun, M., Best, C. T., Bird, S., Butcher, A. R., Cassidy, S., Chetty, G., Cox, F. M., Cutler, A., Dale, R., Epps, J. R., Fletcher, J. M., Goecke, R., Grayden, D. B., Hajek, J. T., Ingram, J. C., Ishihara, S., Kemp, N., Kinoshita, Y., Kuratate, T., Lewis, T. W., Loakes, D. E., Onslow, M., Powers, D. M., Rose, P., Togneri, R., Tran, D., and Wagner, M., ″A Blueprint for a Comprehensive Australian English Auditory-Visual Speech Corpus″, in Selected Proceedings of the 2008 HCSNet Workshop on Designing the Australian National Corpus: Mustering Languages, 2009. (pdf)

[40]nLe, P., Ambikairajah, E., Choi, E., and Epps, J., ″A Non-Uniform Subband Approach to Speech-Based Cognitive Load Classification″, in Proc. IEEE Int. Conf. on Information, Communications and Signal Processing (Macau), 2009.

[39]nThiruvaran, T., Epps, J., Ambikairajah, E., and Jones, E., ″An investigation of sub-band FM feature extraction in speaker recognition″, in Proc. IET Irish Signals and Systems Conf. (Galway, Ireland), 2008.

[38]nAkhtar, M., Ambikairajah, E., and Epps, J., ″Digital signal processing techniques for gene finding in eukaryotes″, in Proc. IEEE Int. Conf. on Image and Signal Processing (Cherbourg-Octeville, France), 2008.

[37]nGunawan, T. S., Ambikairajah, E., and Epps, J., ″Higher order statistics and neural network based multi-classifier system for gene identification″, in Proc. Int. Conf. on Signal Processing and Communications Systems (Gold Coast, Aust.), 2007.

[36]nAmbikairajah, E., Freney, S. J., Epps, J., and Hesketh, T., ″Self-Directed Project Based Learning - A Case Study″, in Proc. 18th Conf. of the Australasian Association for Engineering Education (Melbourne, Aust.), 2007.

[35]nAkhtar, M., Ambikairajah, E., and Epps, J., ″Paired Comprehensive autoregressive modelling for classification of genomic sequences″, in Proc. IEEE Int. Conf. on Information, Communications and Signal Processing (Singapore), 2007, pp. 1-5.

[34]nGunawan, T. S., Ambikairajah, E., and Epps, J., ″A signal boosting technique for gene prediction″, in Proc. IEEE Int. Conf. on Information, Communications and Signal Processing (Singapore), 2007, pp. 1-4.

[33]nThiruvaran, T., Ambikairajah, E., and Epps, J., ″Group delay features for speaker recognition″, in Proc. IEEE Int. Conf. on Information, Communications and Signal Processing (Singapore), 2007, pp. 1-5.

[32]nNosratighods, M., Ambikairajah, E., Epps, J. and Carey, M., ″Score weighting in speaker verification systems″, in Proc. IEEE Int. Conf. on Information, Communications and Signal Processing (Singapore), 2007, pp. 1-4.

[31]nAmbikairajah, E., Epps, J., Sheng, M., and Celler, B., ″Virtual Classroom on a DVD - Revisiting Live Lectures″, in Proc. ICEIT Workshop, World Congress on Engineering and Computer Science (WCECS), (Los Angeles, CA), 2007.

[30]nAkhtar, M., Epps, J., and Ambikairajah, E., ″Paired Spectral Content Measure for Gene and Exon Prediction in Eukaryotes″, in Proc. IEEE Int. Conf. on Information and Emerging Technologies (Karachi, Pakistan), 2007, pp. 1-4.

[29]nSchremmer, C., Krumm-Heller, A., Vernik, R., and Epps, J., ″Design Discussion of the [braccetto] Research Platform: Rapidly Composable and Adaptable Telepresence Workstations for Distributed Intensely Collaborating Teams of Teams″, in Proc. 12th Int. Conf. on Human-Computer Interaction (Beijing, China), 2007, pp. 722-734.

[28]nThiruvaran, T., Ambikairajah, E., and Epps, J., ″Speaker Identification using FM Features″, in Proc. 11^th Conf. on Speech Science and Technology (Auckland, New Zealand), 2006, pp. 148-152.

[27]nNosratighods, M., Ambikairajah, E., Epps, J., and Carey, M., ″A Novel Technique for the Selection of Speech Segments for Speaker Verification″, in Proc. 11^th Conf. on Speech Science and Technology (Auckland, New Zealand), 2006, pp. 136-141.

M. Nosratighods won the ASSTA New Researcher Award 2006 with this paper.

[26]nChoi, E., and Epps, J., ″A Novel Front-end Based on Variable Frame Rate Analysis and Mel-filterbank Output Compensation for Robust ASR″, in Proc. 11^th Conf. on Speech Science and Technology (Auckland, New Zealand), 2006.

[25]nAmbikairajah, E., Epps, J., Hesketh, T., and Sheng, M., ″Factors Affecting Engineering Student Learning and Study Behaviour″, in Proc. 17th Conf. of the Australasian Association for Engineering Education (Auckland, New Zealand), 2006.

[24]nMubarak, O., Ambikairajah, E., and Epps, J., ″Modulation Features for Speech and Music Classification″, in Proc. IEEE Int. Conf. on Communications Systems (Singapore), 2006.

[23]nAkhtar, M., Ambikairajah, E., and Epps, J., ″A Hybrid Method for the Recognition of Acceptor Sites″, in Proc. IEEE Int. Conf. on Electronics, Circuits and Systems (Nice, France), December 10-13, 2006.

[22]nSchremmer, C., Epps, J., and Vernik, R. ″Distributed Intense Collaborative Interaction - Research Challenges in eResearch″, in Proc. British HCI 2006 Workshop on Combining Visualisation and Interaction to Facilitate Scientific Exploration and Discovery (London, UK), vol. 2, pp. 260-263, September 2006.

[21]nAmbikairajah, E., Epps, J., Sheng, M., and Celler, B. ″Revisiting Live Lectures: A Shift in Paradigm ?″, in Proc. IEEE 7^th Int. Conf. on Information Technology Based Higher Education and Training (Sydney, Aust.), 2006, pp. 1-4.

[20]nAmbikairajah, E., Epps, J., Sheng, M., and Celler, B., ″A New Mode of Teaching for Self-Directed Learning″, in Proc. IEE Int. Conf. on Engineering Education (Liverpool, UK), 2006.

[19]nMubarak, O., Ambikairajah, E., and Epps, J., ″Novel Features for Effective Speech and Music Discrimination″, in Proc. IEEE Int. Conf. on Engineering of Intelligent Systems (Islamabad, Pakistan), 2006, pp. 342-346.

[18]nChen, F., Close, B., Eades, P., Epps, J., Hutterer, P., Lichman, S., Takatsuka, M., Thomas, B., and Wu, M., ″ViCAT: Visualisation and Interaction on a Collaborative Access Table″, in Proc. 1st IEEE Int. Workshop on Horizontal Interactive Human-Computer Systems (Adelaide, Aust.), 2006, pp. 59-60.

[17]nChoi, E., and Epps, J., ″On the Use of Forward Temporal Masking and Cumulative Distribution Mapping for Noisy Speech Recognition″, in Proc. IEEE Int. Region 10 Conference (TENCON) (Melbourne, Aust.), November 2005.

[16]nEpps, J., ″A new approach to variable frame rate front-end processing for robust speech recognition″, in Proc. IEEE 8th Int. Symp on Sig. Proc. and its Appl. (Sydney, Aust.), August 2005, pp. 723-726.

[15]nAmbikairajah, E., and Epps, J., ″Gene and exon prediction using time domain algorithms″, in Proc. IEEE 8th Int. Symp on Sig. Proc. and its Appl. (Sydney, Aust.), August 2005, pp. 199-202.

[14]nMubarak, O., Ambikairajah, E., and Epps, J., ″Analysis of an MFCC-based audio indexing system for efficient coding of multimedia sources″, in Proc. IEEE 8th Int. Symp on Sig. Proc. and its Appl. (Sydney, Aust.), August 2005, pp. 619-622.

[13]nAkhtar, M., Ambikairajah, E., and Epps, J., ″Comparison of gene and exon prediction techniques for detection of short coding regions″, in Proc. Int. Conf. on Intelligent Computing (Hefei, China), August 23-26, 2005.

[12]nAmbikairajah, E., Epps, J., Sheng, M., and Celler, B., ″Evaluation of an electronic whiteboard-based computing laboratory″, in Proc. Int. Conf. on Multimedia and Inf. & Comm. Tech. in Education (Caceres, Spain), June 2005, pp. 748-751.

[11]nSheng, M., Celler, B., Ambikairajah, E., and Epps, J., ″Development of a virtual classroom player for self-directed learning″, in Proc. Int. Conf. on Multimedia and Inf. & Comm. Tech. in Education (Caceres, Spain), June 2005, pp. 718-721.

[10]nAkhtar, M., Ambikairajah, E., and Epps, J., ″Gene and exon prediction using time domain algorithms″, in Proc. 3rd Asia-Pacific Bioinformatics Conference (Singapore), January 2005, p. 43.

[9]nnEpps, J., and Ambikairajah, E., ″Visualization of Reduced-Dimension Microarray Data using Gaussian Mixture Models″, in Proc. Asia-Pacific Symposium on Information Visualisation (Sydney, Australia), January 27-29, 2005, pp. 137-142. (pdf)

[8]nnGunawan, T. S., Ambikairajah, E., and Epps, J., ″Perceptual Wavelet Packet Coder″, in Proc. Int. Conf. on Communications Systems (Singapore), 2004, pp. 235-239.

[7]nnHolter, T., Epps, J., Gopalakrishnan, A., and Choi, E., ″Affine transformations in speaker adaptation - why simpler is better″, in Proc. 9th Aust. Int. Conf. on Speech Science and Tech. (Melbourne, Aust.), 2002, pp. 10-15. (pdf)

[6]nnChoi, E. H.C., Holter, T., Epps, J., and Gopalakrishnan, A., ″Exploitation of feature vector structure for speaker adaptation″, in Proc. 9th Aust. Int. Conf. on Speech Science and Tech. (Melbourne, Aust.), 2002, pp. 172-177. (pdf)

[5]nnThomson, M., Boland, S., Smithers, M., Wu, M. and Epps, J., ″Decomposition of speech into voiced and unvoiced components based on a Kalman filterbank″, in Proc. 9th Aust. Int. Conf. on Speech Science and Tech. (Melbourne, Aust.), 2002, pp. 118-123.

[4]nnO″Malley, F., Ambikairajah, E., and Epps, J., ″A novel approach to auditory-domain based speech processing″, in Proc. Irish Signals and Systems Conf. (Cork, Ireland), 2002.

[3]nnAmbikairajah, E., Epps, J., and Kilmartin, L., ″Auditory domain-based time-frequency parameterization for speech and audio coding″, in Proc. Irish Signals and Systems Conf. (Maynooth, Ireland), 2001.

[2]nnAmbikairajah, E., Epps, J., O″Malley, F., and Kilmartin, L., ″Pitch and voicing estimation of speech using auditory domain time-frequency analysis″, in Proc. Irish Signals and Systems Conf. (Maynooth, Ireland), 2001.

[1]nnEpps, J. and Holmes, W. H., ″Wideband speech coding at narrowband bit rates″, in Proc. 8^th Conf. on Speech Science and Technology (Canberra, Aust.), 2000, pp. 398-403.

Non-Refereed Publications

Epps, J., Response to interview questions, in Chapter 13 of SIMILAR Dreams - Multimodal Interfaces in Our Future Life, Presses universitaires de Louvain, Louvain-la-Nueve, 2005, pp. 294-298, ISBN 2-930344-91-1.

Patents

Issued

″Method and apparatus for estimating a spectral model of a signal used to enhance a narrowband signal″, Australian Patent Number 754612, issued March 2003.

″Method and apparatus for providing a speaker adapted speech recognition model set″, US Patent Application Number 10/368756, filed August 2004, issued March 2008.

Filed

″Front-end processing of speech signals″, Australian Patent Application Number 2005905604, filed September 2006.

Industry Experience

Motorola Labs, Sydney, Aug. 2001 - Dec. 2003 - Senior Research Engineer, Speech Technology Laboratory, followed by Multimodal and Language Technology Laboratory, working mainly on speech recognition and spoken dialog systems.

Motorola Labs, Sydney, Oct. 1999 - Jan. 2000 - Postgraduate Research Intern, Speech Laboratory, working mainly on precise pitch determination for speech coding systems.

Ci Technologies, Sydney, Jan. 1997 - Jun. 1997 - Systems Engineer, working mainly on multi-platform testing of the CiTect SCADA product.

GEC Alsthom, Sydney, Jul. 1995 - Dec. 1995 - Trainee Engineer, Projects Division, working mainly on SCADA systems for remote control of hydroelectric power stations.

Alcatel Australia, Sydney, Dec. 1994 - Jun. 1995 - Trainee Engineer, working mainly on software configuration management for the System 12 Digital exchange.

Energy Australia, Sydney, Dec. 1992 - Feb. 1993 - Trainee Engineer, working on the provision and maintenance of overhead and underground power distribution networks.

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Contact Details

Phone Number:
nnn+61 2 9385 6579 (Work)
Fax Number:
nnn+61 2 9385 5993 (Work)
E-mail Address:

Internet:

nhttp://maestro.ee.unsw.edu.au/~julien/

Address:

School of Electrical Engineering and Telecommunications

The University of New South Wales

UNSW Sydney

NSW 2052

Australia

Keywords: speech bandwidth expansion scalable conditional vector quantization codebook mapping EM algorithm wideband narrowband high frequency bands regeneration extension interframe intraframe GMM HMM classified artificial mobile telephone mutual information audio statistical recovery enhancement coded coding technique method voicing parametric sinusoidal transform coding low bit rate estimation spectral distortion