Madhavi S. Pednekar

Work place: Department of EXTC, Don Bosco Institute of Technology, Mumbai - 400070, Maharashtra, India

E-mail: madhavi@dbit.in

Website: https://orcid.org/0009-0001-1787-712X

Research Interests:

Biography

Madhavi Pednekar holds a doctoral degree in Automatic Dialect Identification and brings with her over 23 years of dedicated experience in the field of education, all of which she has proudly served at Don Bosco Institute of Technology (DBIT), Mumbai. She currently serves as the Head of the Department of Electronics & Telecommunication Engineering at DBIT. With a strong academic and research background, she has published more than 20 research papers in reputed international journals. Her core areas of interest include Signal Processing, Speech Processing, and Embedded Systems.
In addition to her academic responsibilities, she also serves as the NSS Lady Program Officer, representing DBIT under the University of Mumbai, where she actively fosters a spirit of community service and social responsibility among students.

Author Articles
Stacking Based Ensemble Learning with Deer Hunting Optimization for Automatic Identification of Malvani Dialects

By Madhavi S. Pednekar Kaustubh Bhattacharyya

DOI: https://doi.org/10.5815/ijigsp.2025.06.07, Pub. Date: 8 Dec. 2025

Language Identification (LID) is a subset of Dialect Identification that addresses specific challenges and matters related to linguistic similarity between dialects. Various current approaches are used for dialect identification, but automated prediction is difficult because the clarity of voices is not in a perfect range, and inaccurate selection of features. It is essential to utilize an appropriate feature subset that contains sufficient signal information for the learning model to correctly recognize language dialects. So as to eradicate the mentioned issues, optimized stacking based ensemble learning is developed. The identification process initiates with the pre-processing by using an adaptive least mean square filter and a fractional bandpass filter. The features from the pre-processed audio signal will be extracted by using Gammatone frequency Cepstral coefficients (GFCC) and Shifted Delta Cepstral Coefficient (SDCC). Then, the extracted features will be reduced with the help of Independent Component Analysis (ICA). Furtherly, the classification of selected features will be further given to the Recurrent Neural Network (RNN), which acts as a meta-classifier and additionally gets information from a pair of distinct classifiers, such as Radial Basis Functional Neural Network (RBFNN) and Deep Belief Network (DBN). The hyperparameter present in the RNN classifier was tuned using the Deer Hunting Optimization Algorithm (DHOA). The proposed approach has an accuracy of 97%, a precision of 96%, also an F1-score of 97%. Therefore, for an automatic dialect identification, the suggested approach is the best option.

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