Robust speech recognition using HMM's with toeplitz state covariance matrices. - William J. J. Roberts; Yariv Ephraim (ICSLP, 1998)

Robust speech recognition via modeling spectral coefficients with HMM's with complex Gaussian components. - William J. J. Roberts; Sadaoki Furui (INTERSPEECH, 2000)

Genetically optimised feedforward neural networks for speaker identification. - Richard C. Price; Jonathan P. Willmore; William J. J. Roberts; Kathleen Zyga (KES, 2000)

Hidden Markov modeling of speech using Toeplitz covariance matrices. - William J. J. Roberts; Yariv Ephraim (Speech Commun., 2000)

Maximum likelihood estimation of K-distribution parameters via the expectation-maximization algorithm. - William J. J. Roberts; Sadaoki Furui (IEEE Trans. Signal Process., 2000)

On preprocessing for mismatched classification of Gaussian signals. - Yariv Ephraim; William J. J. Roberts (IEEE Trans. Inf. Theory, 2001)

On application of the Faragó-Lugosi algorithm in speech recognition. - William J. J. Roberts; Yariv Ephraim (ICASSP, 2002)

Recursive estimation of K-distribution parameters. - Pei Jung Chung; William J. J. Roberts (ICASSP (2), 2003)

Revisiting autoregressive hidden Markov modeling of speech signals. - Yariv Ephraim; William J. J. Roberts (IEEE Signal Process. Lett., 2005)

On Second-Order Statistics of Log-Periodogram With Correlated Components. - Yariv Ephraim; William J. J. Roberts (IEEE Signal Process. Lett., 2005)

Speaker classification using composite hypothesis testing and list decoding. - William J. J. Roberts; Yariv Ephraim; Howard W. Sabrin (IEEE Trans. Speech Audio Process., 2005)

Recursive K-distribution parameter estimation. - Pei Jung Chung; William J. J. Roberts; Johann F. Böhme (IEEE Trans. Signal Process., 2005)

On Ryde'n's EM algorithm for estimating MMPPs. - William J. J. Roberts; Yariv Ephraim; Elvis Dieguez (IEEE Signal Process. Lett., 2006)

On Recursive MMPP Parameter Estimation. - Christopher J. Willy; William J. J. Roberts; Thomas A. Mazzuchi; Shahram Sarkani (IEEE Signal Process. Lett., 2008)

An EM Algorithm for Ion-Channel Current Estimation. - William J. J. Roberts; Yariv Ephraim (IEEE Trans. Signal Process., 2008)

An EM Algorithm for Markov Modulated Markov Processes. - Yariv Ephraim; William J. J. Roberts (IEEE Trans. Signal Process., 2009)

Application of a Gaussian, Missing-Data Model to Product Recommendation. - William J. J. Roberts (IEEE Signal Process. Lett., 2010)

Anomaly Detection Using an MMPP-based GLRT. - Chris Scheper; William J. J. Roberts (Int. J. Netw. Secur., 2015)