Academic Appointments
- Associate Professor, Department of Electrical and Computer Engineering,
Bucknell University, since May 2013.
- Guest Professor, Technische Universität Berlin, Germany, Academic Year 2022/2023.
- Guest Professor, Ruhr-Universität Bochum, Germany, Academic Year 2014/2015.
- Marie Curie Incoming International Fellow,
Ruhr-Universität Bochum, Germany, Academic Year 2010/2011.
- Assistant Professor, Department of Electrical Engineering,
Bucknell University, July 2007 - May 2013.
- Assistant Professor, Electrical Engineering Department,
Penn State University, August 2002 - June 2007.
- Adjunct Faculty, Electrical Engineering and Computer Science Department,
University of Michigan, Academic Year 2001/2002.
Education
- Ph.D. in Electrical Engineering, University of Michigan,
Ann Arbor, Michigan, 2001.
- M.S.E. in Electrical Engineering, University of Michigan,
Ann Arbor Michigan, 1997.
- Dipl.-Ing. in Electrical Engineering, Rheinisch-Westfälische
Technische Hochschule, Aachen, Germany, 1995.
Research Interests
- Natural Language Processing and Forensic Authorship Verification
- Fake News and Deception Detection in Social Media Texts
- Multimodal Information Fusion and Uncertainty Modeling
- Speech Signal Processing and Speech Modeling
- Speech Coding, Synthesis, and Enhancement
- Automatic Speech/Speaker/Language Recognition
- Detection, Estimation, and Classification Theory
Selected Publications
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"Mitigating Overfitting in Bimodal Data Integration with GLOW for Large and Sparse Datasets," by W. Yu, D. Kolossa, and R. M. Nickel, 5th International Conference on Computing and Network Communications (CoCoNet), Bangalore, India, December 18-20, 2023.
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"Deep Learning-Based Claim Matching with Multiple Negatives Training," by A. Neumann, D. Kolossa, and R. M. Nickel, 6th International Conference on Natural Language and Speech Processing (ICNLSP), Virtual Conference (Trento, Italy), December 16-17, 2023.
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"Addressing the Barriers of Knowledge Transfer: Using ePortfolios to Enhance Student Reflection in Technical Courses," by R. L. Thomas, S. Appelhans, R. J. Kozick, C. Matlack, P. Asare, M. S. Thompson, S. Thomas, R. M. Nickel, and R. A. Cheville, IEEE ASEE Frontiers in Education Conference, College Station, Texas, October 18–21, 2023.
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"What is Convergence?: A systematic review of the definition of and aspects of convergent work," by M. S. Thompson, R. A. Cheville, R. L. Thomas, S. Thomas, S. Appelhans, R. M. Nickel, and P. Asare, IEEE ASEE Frontiers in Education Conference, College Station, Texas, October 18–21, 2023.
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"Work-in-Progress: A Review of the Type, Breadth, and Limitations of Publicly Available Educational Technology Products in 2022," by R. M. Nickel, S. Thomas, N. Kreusch, A. Abouelnagga, R. A. Cheville, R. Thomas, and M. S. Thompson, 129th ASEE Annual Conference and Exposition, Minneapolis, Minnesota, June 26-29, 2022.
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"Work in Progress: Systemic Convergence Education in an Undergraduate ECE Program," by R. A. Cheville, R. M. Nickel, S. Thomas, R. Thomas, and M. S. Thompson, Frontiers in Education (FIE) Conference, Lincoln, Nebraska, October 13-16, 2021.
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"Self-Calibrating Neural-Probabilistic Model for Authorship Verification Under Covariate Shift," by B. Boenninghoff, D. Kolossa, and R. M. Nickel, 12th International Conference of the CLEF Association, Bucharest, Romania, September 21-24, 2021.
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"O2D2: Out-Of-Distribution Detector to Capture Undecidable Trials in Authorship Verification," by B. Boenninghoff, R. M. Nickel, and D. Kolossa, Notebook for PAN 2021 at the Conference and Labs of the Evaluation Forum (CLEF), Bucharest, Romania, September 21-24, 2021.
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"Variational Autoencoder with Embedded Student-t Mixture Model for Authorship Attribution," by B. Boenninghoff, S. Zeiler, R. M. Nickel, and D. Kolossa, May 28, 2020, arXiv:2005.13930 [cs.LG], 28th International Conference on Computational Linguistics (COLING), Barcelona, Spain, December 8-13, 2020.
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"Deep Bayes Factor Scoring for Authorship Verification," by B. Boenninghoff, J. Rupp, R. M. Nickel, and D. Kolossa, Notebook for PAN 2020 at the Conference and Labs of the Evaluation Forum (CLEF), Thessaloniki, Greece, September 22-25, 2020.
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"Explainable Authorship Verification in Social Media via Attention-based Similarity Learning," by B. Boenninghoff, S. Hessler, D. Kolossa and R. M. Nickel, IEEE International Conference on Big Data (Big Data), Los Angeles, CA, USA, December 9-12, 2019, pp. 36-45.
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"Similarity Learning for Authorship Verification in Social Media," by B. Boenninghoff, R. M. Nickel, S. Zeiler, and D. Kolossa, Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Brighton, UK, May 12-17, 2019, pp. 2457-2461.
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"Improving Audio-Visual Speech Recognition Using Deep Neural Networks with Dynamic Stream Reliability Estimates," by H. Meutzner, N. Ma, R. M. Nickel, C. Schymura, and D. Kolossa, Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP), New Orleans, Louisiana, March 5-9, 2017, pp. 5320-5324.
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"Unsupervised Classification of Voiced Speech and Pitch Tracking Using Forward-Backward Kalman Filtering," by B. T. Bönninghoff, R. M. Nickel, S. Zeiler, and D. Kolossa, Proceedings of the 12th Speech Communication Conference of the Information Technology Society of the Association of German Engineers (ITG-VDE Fachtagung Sprachkommunikation), Paderborn, Germany, October 5-7, 2016.
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"Dynamic Stream Weighting for Turbo-Decoding-Based Audiovisual ASR," by S. Gergen, S. Zeiler, A. H. Abdelaziz, R. M. Nickel, D. Kolossa, Proceedings of the 17th Annual Conference of the International Speech Communication Association (INTERSPEECH), San Francisco, California, September 8-12, 2016, pp. 2135-2139.
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"Robust Audiovisual Speech Recognition Using Noise-Adaptive Linear Discriminant Analysis," by S. Zeiler, R. M. Nickel, N. Ma, G. J. Brown, and D. Kolossa, Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Shanghai, China, March 20-25, 2016, pp. 2797-2801.
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"Vertical Integration of Biometrics Across the Curriculum: Case Study of Speaker, Face and Iris Recognition," R. P. Ramachandran, K. D. Dahm, R. M. Nickel, R. J. Kozick, S. Shetty, L. Hong, S. H. Chin, R. Polikar, and Y. Tang, IEEE Circuits and Systems Magazine, Vol. 14, No. 3, pp. 55-69, 2014.
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"Corpus-Based Speech Enhancement with Uncertainty Modeling and Cepstral Smoothing," by R. M. Nickel, R. F. Astudillo, D. Kolossa, and R. Martin, IEEE Transactions on Audio, Speech, and Language Processing, Vol. 21, No. 5, May 2013, pp. 983-997.
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"Inventory-Based Audio-Visual Speech Enhancement," by D. Kolossa, R. M. Nickel, S. Zeiler, and R. Martin, 13th Annual Conference of the International Speech Communication Association (INTERSPEECH 2012), Portland, Oregon, September 9-13, 2012.
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"Inventory-Style Speech Enhancement with Uncertainty-of-Observation Techniques," by R. M. Nickel, R. F. Astudillo, D. Kolossa, S. Zeiler, and R. Martin, Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), Kyoto, Japan, March 25-30, 2012, pp. 4645-4648.
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"Memory and Complexity Reduction for Inventory-Style Speech Enhancement Systems," by R. M. Nickel and R. Martin, Proceedings of the 19th European Signal Processing Conference (EUSIPCO 2011), Barcelona, Spain, August 29 - September 2, 2011, pp. 196-200.
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"Speech Enhancement with Inventory Style Speech Resynthesis," by X. Xiao and R. M. Nickel, IEEE Transactions on Audio, Speech, and Language Processing, Vol. 18, No. 6, Aug. 2010, pp. 1243-1257.
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"Fast Algorithms for Inventory Based Speech Enhancement," by R. M. Nickel, T. Sugimoto, X. Xiao, in Signal Processing, Sebastian Miron (Ed.), ISBN: 978-953-7619-91-6, INTECH, pp. 415-427, 2010.
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"Inventory Based Speech Enhancement for Speaker Dedicated Speech Communication Systems," by X. Xiao, P. Lee, R. M. Nickel, Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Taipei, Taiwan, April 2009, pp. 3877-3880.
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"Automatic Speech Character Identification," by R. M. Nickel, A Tutorial Article for the IEEE Circuits and Systems Magazine, Vol. 6, No. 4, pp. 8-29, 2006.
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