A Hybrid Approach to Single and Multiple PP Attachment Using WordNet. - Akshar Bharati; U. Rohini; P. Vishnu; Sushma Bendre; Rajeev Sangal (IJCNLP, 2005)

On the connection between matrix notch filter and maximum likelihood estimation of sinusoidal parameters. - P. Vishnu; C. S. Ramalingam (ICSPCS, 2017)

Model Order Estimation using Ratio of Cumulative Sums of Eigenvalues. - P. Vishnu; C. S. Ramalingam (SPCOM, 2018)

Efficient Methods for Estimating Sinusoidal Frequencies Using Line Spectral Pairs. - P. Vishnu; C. S. Ramalingam (NCC, 2019)

An Improved LSF-based Algorithm for Sinusoidal Frequency Estimation that Achieves Maximum Likelihood Performance. - P. Vishnu; C. S. Ramalingam (SPCOM, 2020)