Publications

arXiv preprints

  • H. Kamper, S. Settle, G. Shakhnarovich, and K. Livescu, “Visually grounded learning of keyword prediction from untranscribed speech,” arXiv preprint arXiv:1703.08136, 2017. [arXiv]
  • H. Kamper, K. Livescu, and S. J. Goldwater, “An embedded segmental k-means model for unsupervised segmentation and clustering of speech,” arXiv preprint arXiv:1703.08135, 2017. [arXiv]
  • H. Kamper, A. Jansen, and S. J. Goldwater, “A segmental framework for fully-unsupervised large-vocabulary speech recognition,” arXiv preprint arXiv:1606.06950, 2016. [arXiv]

Journal publications

  • H. Kamper, A. Jansen, and S. J. Goldwater, “Unsupervised word segmentation and lexicon discovery using acoustic word embeddings,” IEEE/ACM Transactions on Audio, Speech and Language Processing, vol. 24, no. 4, pp. 669-679, 2016. [link, arXiv, preprint]
  • H. Kamper, F. de Wet, T. Hain, and T. R. Niesler, “Capitalising on North American speech resources for the development of a South African English large vocabulary speech recognition system,” Computer Speech and Language, vol. 28, no. 6, pp. 1255-1268, 2014. [link, preprint]
  • H. Kamper and T. R. Niesler, “The impact of accent identification errors on speech recognition of South African English,” South African Journal of Science, vol. 110, no. 1, 6 pages, 2014. [pdf]
  • H. Kamper, F. J. Muamba Mukanya, and T. R. Niesler, ”Multi-accent acoustic modelling of South African English”, Speech Communication, vol. 54, no. 6, pp. 801-813, 2012. [link, preprint]

International conference proceedings

  • S. Bansal, H. Kamper, A. Lopez, and S. J. Goldwater, “Towards speech-to-text translation without speech recognition,” in Proc. EACL, 2017. [arXiv]
  • S. Bansal, H. Kamper, S. J. Goldwater, and A. Lopez, “Weakly supervised spoken term discovery using cross-lingual side information,” in Proc. ICASSP, 2017. [pdf, arXiv]
  • H. Kamper, W. Wang, and K. Livescu, “Deep convolutional acoustic word embeddings using word-pair side information,” in Proc. ICASSP, 2016. [pdf, arXiv, slides, code]
  • H. Kamper, A. Jansen, and S. J. Goldwater, “Fully unsupervised small-vocabulary speech recognition using a segmental Bayesian model,” in Proc. Interspeech, 2015. [pdf, poster]
  • D. Renshaw, H. Kamper, A. Jansen, and S. J. Goldwater, “A comparison of neural network methods for unsupervised representation learning on the Zero Resource Speech Challenge,” in Proc. Interspeech, 2015. [pdf, flash slides]
  • H. Kamper, M. Elsner, A. Jansen, and S. J. Goldwater, “Unsupervised neural network based feature extraction using weak top-down constraints,” in Proc. ICASSP, 2015. [pdf, slides, code]
  • H. Kamper, A. Jansen, S. King, and S. J. Goldwater, “Unsupervised lexical clustering of speech segments using fixed-dimensional acoustic embeddings,” in Proc. SLT, 2014. [best poster presentation award] [pdf, poster, code]
  • H. Kamper, F. de Wet, T. Hain, and T. R. Niesler, “Resource development and experiments in automatic South African broadcast news transcription”, in Proc. SLTU, 2012. [pdf, slides]
  • H. Kamper and T. R. Niesler, “Multi-accent speech recognition of Afrikaans, Black and White varieties of South African English,” in Proc. Interspeech, 2011. [pdf, poster]

National conference proceedings

  • H. Kamper and T. R. Niesler, “Optimisation of acoustic models for a target accent using decision-tree state clustering,” in Proc. PRASA, 2012. [best paper award] [pdf, slides]
  • H. Kamper and T. R. Niesler, “Accent reclassification and speech recognition of Afrikaans, Black and White South African English,” in Proc. PRASA, 2011. [pdf, slides]
  • H. Kamper, F. J. Muamba Mukanya, and T. R. Niesler, “Acoustic modelling of English-accented and Afrikaans-accented South African English,” in Proc. PRASA, 2010. [pdf, slides]
  • H. Kamper and T. R. Niesler, “Characterisation and simulation of telephone channels using the TIMIT and NTIMIT databases,” in Proc. PRASA, 2009. [pdf, slides]

Other publications

  • H. Kamper, “Unsupervised neural and Bayesian models for zero-resource speech processing,” Ph.D. dissertation, University of Edinburgh, UK, 2016. [pdf]
  • H. Kamper, “Speech recognition of South African English accents,” Master’s thesis, Stellenbosch University, South Africa, 2012. [pdf]