The University of Southampton
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Electronics and Computer Science
Telephone:
+442380596675
Email:
c.evers@soton.ac.uk

Dr Christine Evers 

https://www.cevers.co.uk

Christine Evers is a Lecturer (Assistant Prof. equivalent) in Computer Science. Her research focuses on Bayesian learning for machine listening, with a particular focus on robot audition. Her research is located on the intersection of robotics, machine learning, acoustics, and statistical signal processing. She is a Co-I on the Trustworthy Autonomous Systems Hub, and the cohort lead as well as the theme lead for 'Embedded AI' on the UKRI Centre for Doctoral Training in Machine Intelligence for Nano- Electronic Devices and Systems (MINDS). 

Prior to joining the University of Southampton, Christine was the recipient of an EPSRC Fellowship to advance her work on "Acoustic Signal Processing and Scene Analysis for Socially Assistive Robots", hosted at Imperial College London. Her fellowship followed a position a research associate on the FP7 project "Embodied Audition for Robots" at Imperial College. Christine has previously worked in the industry as a senior systems engineer at Selex ES, Edinburgh (UK). She received her PhD in statistical signal processing under the supervision of Dr James R. Hopgood from the University of Edinburgh, UK.

Christine is a Senior Member of the IEEE, an elected member of the IEEE Signal Processing Society (SPS) Technical Committee on Audio and Acoustic Signal Processing, a member of the IEEE SPS Challenges and Data Collections committee, and serves as an associate editor for IEEE Transactions on Audio, Speech & Language Processing as well as the EURASIP Journal on Audio, Speech, and Music Processing. She has served on several conference organising committees and is a regular reviewer for various journals and conferences across robotics, acoustics, and machine learning.

Full publication list on Google Scholar

Research

Research interests

My research is in the area of machine listening, and equips autonomous agents with the ability to extract semantic cues from microphone signals in order to answer the questions "Where am I?", "What are the sounds around me?", and "How can I interact in my acoustic environment?". The objective of my research is to provide agents, such as robots, with situational awareness in order to reason and interact within complex, acoustic environments, affected by interference, noise, and reverberation. 

Teaching

Publications

Moore, Alastair, Evers, Christine and Naylor, Patrick (2017) Direction of arrival estimation in the spherical harmonic domain using subspace pseudointensity vectors. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 25 (1), 178-192. (doi:10.1109/TASLP.2016.2613280).

Evers, Christine and Naylor, Patrick (2018) Acoustic SLAM. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 26 (9), 1484 - 1498. (doi:10.1109/TASLP.2018.2828321).

Evers, Christine, Loellmann, Heinrich W., Mellmann, Heinrich, Schmidt, Alexander, Barfuss, Hendrik, Naylor, Patrick A. and Kellermann, Walter (2020) Data Corpus for the IEEE-AASP Challenge on Acoustic Source Localization and Tracking (LOCATA). Zenodo doi:10.5281/zenodo.3630471 [Dataset]

Evers, Christine, Habets, Emanuel, Gannot, Sharon and Naylor, Patrick (2018) DoA reliability for distributed acoustic tracking. IEEE Signal Processing Letters, 25 (9), 1320-1324. (doi:10.1109/LSP.2018.2849579).

Ban, Yutong, Alameda-Pineda, Xavier, Evers, Christine and Horaud, Radu (2019) Tracking multiple audio sources with the von Mises distribution and variational EM. IEEE Signal Processing Letters, 26 (6), 798-802. (doi:10.1109/LSP.2019.2908376).

Evers, Christine and Naylor, Patrick (2018) Optimized self-localization for SLAM in dynamic scenes using probability hypothesis density filters. IEEE Transactions on Signal Processing, 66 (4), 863-878. (doi:10.1109/TSP.2017.2775590).

Neo, Vincent W., Evers, Christine and Naylor, Patrick A. (2020) PEVD-Based Speech Enhancement in Reverberant Environments. In Proceedings IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE.. (In Press)

Hogg, Aidan, Evers, Christine and Naylor, Patrick A. (2019) Multiple hypothesis tracking for overlapping speaker segmentation. In Proceedings IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA). IEEE.. (doi:10.1109/WASPAA.2019.8937185).

Evers, Christine, Loellmann, Heinrich W., Mellmann, Heinrich, Schmidt, Alexander, Barfuss, Hendrik, Naylor, Patrick A. and Kellermann, Walter (2020) The LOCATA challenge: acoustic source localization and tracking. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 28, 1620-1643, [9079214]. (doi:10.1109/TASLP.2020.2990485).

Hopgood, James R., Evers, Christine and Fortune, Steven (2010) Bayesian single channel blind dereverberation of speech from a moving talker. In, Speech Dereverberation. (Signals and Commmunication Technology) Springer, pp. 219-270. (doi:10.1007/978-1-84996-056-4_8).

Evers, Christine and Hopgood, James R. (2011) Multichannel online blind speech dereverberation with marginalization of static observation parameters in a Rao-Blackwellized particle filter. Journal of Signal Processing Systems, 63, 315-332. (doi:10.1007/s11265-009-0442-4).

Evers, Christine and Hopgood, James R. (2008) Parametric modelling for single-channel blind dereverberation of speech from a moving speaker. IET Signal Processing, 2 (2). (doi:10.1049/iet-spr:20070046).

Neo, Vincent W., Evers, Christine and Naylor, Patrick A. (2019) Speech enhancement using polynomial eigenvalue decomposition. In Proceedings of the IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA). IEEE.. (doi:10.1109/WASPAA.2019.8937235).

Hogg, Aidan, Evers, Christine and Naylor, Patrick A. (2019) Speaker change detection using fundamental frequency with application to multi-talker segmentation. In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE.. (doi:10.1109/ICASSP.2019.8682924).

Evers, Christine, Loellmann, Heinrich W., Mellmann, Heinrich, Schmidt, Alexander, Barfuss, Hendrik, Naylor, Patrick A. and Kellermann, Walter (2018) Locata challenge - evaluation tasks and measures. In Proceedings of the International Workshop on Acoustic Signal Enhancement (IWAENC). IEEE.. (doi:10.1109/IWAENC.2018.8521288).

Neo, Vincent W., Evers, Christine and Naylor, Patrick A. (2020) Speech dereverberation performance of a polynomial-EVD subspace approach. European Signal Processing Conference, , Amsterdam, Netherlands. 18 - 22 Jan 2021. 5 pp . (In Press)

Papayiannis, Constantinos, Evers, Christine and Naylor, Patrick A. (2020) End-to-end classification of reverberant rooms using DNNs. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 28, 1-8, [9239871]. (doi:10.1109/TASLP.2020.3033628).

Papayiannis, Constantinos, Evers, Christine and Naylor, Patrick A. (2017) Discriminative feature domains for reverberant acoustic environments. In 2017 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc. pp. 756-760 . (doi:10.1109/ICASSP.2017.7952257).

Evers, Christine, Moore, Alastair H. and Naylor, Patrick A. (2016) Localization of moving microphone arrays from moving sound sources for robot audition. In 2016 24th European Signal Processing Conference, EUSIPCO 2016. vol. 2016-November, European Signal Processing Conference, EUSIPCO. pp. 1008-1012 . (doi:10.1109/EUSIPCO.2016.7760400).

Papayiannis, Constantinos, Evers, Christine and Naylor, Patrick A. (2017) Sparse parametric modeling of the early part of acoustic impulse responses. In European Signal Processing Conference (EUSIPCO). vol. 2017-January, Institute of Electrical and Electronics Engineers Inc. pp. 678-682 . (doi:10.23919/EUSIPCO.2017.8081293).

Evers, Christine, Rafaely, Boaz and Naylor, Patrick A. (2017) Speaker tracking in reverberant environments using multiple directions of arrival. In 2017 Hands-Free Speech Communications and Microphone Arrays, HSCMA 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc. pp. 91-95 . (doi:10.1109/HSCMA.2017.7895568).

Gebru, Israel D., Evers, Christine, Naylor, Patrick A. and Horaud, Radu (2017) Audio-visual tracking by density approximation in a sequential Bayesian filtering framework. In 2017 Hands-Free Speech Communications and Microphone Arrays, HSCMA 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc. pp. 71-75 . (doi:10.1109/HSCMA.2017.7895564).

Evers, Christine, Dorfan, Yuval, Gannot, Sharon and Naylor, Patrick A. (2017) Source tracking using moving microphone arrays for robot audition. In 2017 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc. pp. 6145-6149 . (doi:10.1109/ICASSP.2017.7953337).

Foutekova, Ellina, Evers, Christine and Haas, Harald (2006) Semi-analytical model of interference in CDMA-TDD using random time slot hopping. In IEEE Vehicular Technology Conference, VTC. IEEE. pp. 1033-1037 . (doi:10.1109/VTCF.2006.219).

Hopgood, James R. and Evers, Christine (2007) Block-based TVAR models for single-channel blind dereverberation of speech from a moving speaker. In IEEE Workshop on Statistical Signal Processing, SSP. IEEE. pp. 274-278 . (doi:10.1109/SSP.2007.4301262).

Evers, Christine, Hopgood, James R. and Bell, Judith (2008) Acoustic models for online blind source dereverberation using sequential Monte Carlo methods. In IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. IEEE. pp. 4597-4600 . (doi:10.1109/ICASSP.2008.4518680).

Evers, Christine, Hopgood, James R. and Bell, Judith (2008) Blind speech dereverberation using batch and sequential Monte Carlo methods. In IEEE International Symposium on Circuits and Systems, ISCAS. pp. 3226-3229 . (doi:10.1109/ISCAS.2008.4542145).

Evers, Christine and Hopgood, James R. (2009) Marginalization of static observation parameters in a rao-blackwellized particle filter with application to sequential blind speech dereverberation. In European Signal Processing Conference. pp. 1437-1441 .

Evers, Christine and Hopgood, James R. (2010) Articulatory based speech models for blind speech dereverberation using sequential Monte Carlo methods. In European Signal Processing Conference. European Signal Processing Conference. pp. 2131-2135 .

Evers, Christine, Moore, Alastair H. and Naylor, Patrick A. (2014) Multiple source localisation in the spherical harmonic domain. In 2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014. Institute of Electrical and Electronics Engineers Inc. pp. 258-262 . (doi:10.1109/IWAENC.2014.6954298).

Evers, Christine, Moore, Alastair H., Naylor, Patrick A., Sheaffer, Jonathan and Rafaely, Boaz (2015) Bearing-only acoustic tracking of moving speakers for robot audition. In 2015 IEEE International Conference on Digital Signal Processing, DSP 2015. vol. 2015-September, Institute of Electrical and Electronics Engineers Inc. pp. 1206-1210 . (doi:10.1109/ICDSP.2015.7252071).

Moore, Alastair H., Evers, Christine and Naylor, Patrick A. (2015) Multichannel equalisation for high-order spherical microphone arrays using beamformed channels. In 2015 IEEE International Conference on Digital Signal Processing, DSP 2015. vol. 2015-September, Institute of Electrical and Electronics Engineers Inc. pp. 1211-1215 . (doi:10.1109/ICDSP.2015.7252072).

Evers, Christine, Moore, Alastair H. and Naylor, Patrick A. (2016) Acoustic simultaneous localization and mapping (A-SLAM) of a moving microphone array and its surrounding speakers. In 2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Proceedings. vol. 2016-May, Institute of Electrical and Electronics Engineers Inc. pp. 6-10 . (doi:10.1109/ICASSP.2016.7471626).

Moore, Alastairh, Evers, Christine, Naylor, Patrick A., Alon, David L. and Rafaely, Boaz (2015) Direction of arrival estimation using pseudo-intensity vectors with direct-path dominance test. In 2015 23rd European Signal Processing Conference, EUSIPCO 2015. Institute of Electrical and Electronics Engineers Inc. pp. 2296-2300 . (doi:10.1109/EUSIPCO.2015.7362794).

Dorfan, Yuval, Evers, Christine, Gannot, Sharon and Naylor, Patrick A. (2016) Speaker localization with moving microphone arrays. In 2016 24th European Signal Processing Conference, EUSIPCO 2016. vol. 2016-November, European Signal Processing Conference, EUSIPCO. pp. 1003-1007 . (doi:10.1109/EUSIPCO.2016.7760399).

Moore, Alastair H., Evers, Christine and Naylor, Patrick A. (2016) 2D direction of arrival estimation of multiple moving sources using a spherical microphone array. In 2016 24th European Signal Processing Conference, EUSIPCO 2016. vol. 2016-November, European Signal Processing Conference, EUSIPCO. pp. 1217-1221 . (doi:10.1109/EUSIPCO.2016.7760442).

Lollmann, Heinrich W., Evers, Christine, Schmidt, Alexander, Mellmann, Heinrich, Barfuss, Hendrik, Naylor, Patrick A. and Kellermann, Walter (2018) The LOCATa challenge data corpus for acoustic source localization and tracking. In 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018. vol. 2018-July, IEEE Computer Society. pp. 410-414 . (doi:10.1109/SAM.2018.8448644).

Martnez-Coln, Antonio, Viciana-Abad, Raquel, Perez-Lorenzo, Jose Manuel, Evers, Christine and Naylor, Patrick A. (2021) Evaluation of a multi-speaker system for socially assistive HRI in real scenarios. Bergasa, Luis M., Ocaa, Manuel, Barea, Rafael, Lpez-Guilln, Elena and Revenga, Pedro (eds.) In Advances in Physical Agents II. WAF 2020. vol. 1285, Springer. pp. 151-166 . (doi:10.1007/978-3-030-62579-5_11).

Neo, Vincent W., Evers, Christine and Naylor, Patrick (2021) Polynomial matrix eigenvalue decomposition of spherical harmonics for speech enhancement. In IEEE International Conference on Acoustics, Speech, & Signal Processing (ICASSP). IEEE. 5 pp . (In Press)

Hogg, Aidan, Evers, Christine and Naylor, Patrick A. (2021) Multichannel overlapping speaker segmentation using multiple hypothesis tracking of acoustic and spatial features. In IEEE International Conference on Acoustics, Speech, & Signal Processing (ICASSP). vol. 2021-June, IEEE. pp. 26-30 . (doi:10.1109/ICASSP39728.2021.9414130).

Hogg, Aidan, Evers, Christine, Moore, Alastair H. and Naylor, Patrick (2021) Overlapping speaker segmentation using multiple hypothesis tracking of fundamental frequency. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 29, 1479-1490, [9381673]. (doi:10.1109/TASLP.2021.3067161).

Neo, Vincent W., Evers, Christine and Naylor, Patrick A. (2021) Speech dereverberation performance of a polynomial-EVD subspace approach. In 28th European Signal Processing Conference, EUSIPCO 2020 - Proceedings. vol. 2021-January, European Signal Processing Conference, EUSIPCO. pp. 221-225 . (doi:10.23919/Eusipco47968.2020.9287869).

Wang, Hsuan-Yang, Nelson, Philip and Evers, Christine (2021) Excitation-inhibition Cell activity patterns for binaural source localisation. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, Mohonk Mountain House, New Paltz, United States. 17 - 20 Oct 2021. 5 pp . (In Press)

Hogg, Aidan, Neo, Vincent W., Weiss, Stephan, Evers, Christine and Naylor, Patrick (2021) A polynomial eigenvalue decomposition MUSIC approach for broadband sound source localization. In IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA). IEEE. 5 pp . (In Press)

Neo, Vincent W., Evers, Christine and Naylor, Patrick (2021) Polynomial matrix eigenvalue decomposition-based source separation using informed spherical microphone arrays. In IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA). IEEE. 5 pp . (In Press)

Martnez-Coln, Antonio, Viciana-Abad, Raquel, Perez-Lorenzo, Jose Manuel, Evers, Christine and Naylor, Patrick A. (2021) An audio enhancement system to improve intelligibility for social-awareness in HRI. Multimedia Tools and Applications. (doi:10.1007/s11042-021-11291-3).

Neo, Vincent W., Evers, Christine and Naylor, Patrick (2021) Enhancement of noisy reverberant speech using polynomial matrix eigenvalue decomposition. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 29, 3255 - 3266. (doi:10.1109/TASLP.2021.3120630).

Early, Joseph, Evers, Christine and Ramchurn, Sarvapali (2022) Model agnostic interpretability for multiple instance learning. International Conference on Learning Representations 2022. 25 - 29 Apr 2022. 25 pp .

Contact

Telephone: +44 (0) 23 8059 6675

Email: c.evers@soton.ac.uk

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