Research Publications

Published and In-Progress papers.

Classification of Fine-ADL using sEMG signals under different measurement conditions

Surya Naidu, Anish Turlapaty, Vidya Sagar

  • Collected a state-of-the-art dataset, focussing on activities of daily living (ADL) primarily centered around finger movements, under different measurement conditions.
  • Employed extensive evaluations to gauge the efficacy of ML models across a wide spectrum of experimental scenarios and setups.
  • FCNN and EMGHandNet as the top-performing models with remarkable test accuracies of 88% and 78.63%, respectively.
  • EMGHandNet exhibited a notable performance improvement over FCNN, achieving a remarkable 27.47% higher accuracy for varying body postures.

skill

Nanomagnetic Logic Simulation of Digital Design

Surya Naidu, Vidya Sagar Venna, Gopal Anubothula, Vobulapuram Ramesh Kumar

  • Conducted thorough analysis of established Nanomagnetic Logic (NML) simulators, like ToPoliNano, MagCad, and NMLSim2.0.
  • Designed and simulated simple circuits (Majority Gates, Full Adders) using these simulators for comprehensive analysis.
  • Recognized NMLSim2.0 as the prominent simulator, owing to its circuit simulation capabilities, and inclusion of cuts.

skill

Impact of Measurement Conditions on Classification of ADL using Surface EMG signals

Vidya Sagar, Anish Turlapaty, Surya Naidu

  • The new dataset, EMAHA-DB4 includes sEMG signals from 10 subjects performing 8 unique ADL in 3 body postures and 4 arm positions for varied measurement conditions.
  • The framework uses features from time domain, frequency domain, wavelet domain, and Eigenvalues for ML classification.
  • CNN Bi-LSTM achieved 85.37% accuracy for activities versus arm positions and 82.1% versus body postures in aggregate scenarios.
  • DNN consistently achieved higher accuracy with averages of 90.9% in aggregate conditions and 90.3% in subject-specific scenarios.
skill

Fatigue Classification and Onset estimation using Surface EMG Signals during Strength Training

Eswar Adapa, Anish Turlapaty, Surya Naidu

  • Addresses muscle fatigue detection and onset estimation during strength training using sEMG signals.
  • Diverse measurement conditions (postures, experience levels, lifting loads) are considered for method evaluation.
  • EMAHAD-DB6 dataset created, featuring sEMG signals from 11 subjects in various strength training scenarios.
  • SVM classifier outperforms others with an 86.5% test accuracy, especially excelling in low load conditions (94% accuracy). Fatigue onset estimation has a 12% average relative error.
skill

Frequency ADL Classification using ML and DL Models (In-Progress)

Sayee Sreenivas, Anish Turlapaty, Surya Naidu

  • First of its kind dataset focussing on rate of doing activites using sEMG signals.
  • Employed Signal Processing techniques to extract relevant features from the signals.
  • Utilizing ML techniques to classify the activites under different experimental setups.
skill

Fine ADL Journal (In-Progress)

Anish Turlapaty, Surya Naidu, Vidya Sagar

  • Class-wise Analysis of EMAHA-DB5 is perfromed to understand the impact of various classes using F1- score.
  • % of Train Data and the impact on Accuracy of model is also evaluated.
  • Impact of training on various combinations of Body and Hand Postures is also analysed, giving very promising results.
skill

Impact of Measurement Conditions Journal (In-Progress)

Anish Turlapaty, Vidya Sagar, Surya Naidu

  • Application of Transfer Learning on EMAHA-DB4 dataset.
  • In-depth analysis of impact of measurement conditions on Model performance.
  • Implementing U-Nets and other DL architectures for fine-tuning the model.
skill

Fatigue Onset Estimation Journal (In-Progress)

Eswar Adapa, Anish Turlapaty, Surya Naidu

  • Fine-tuning the model to reduce average error.
  • Data balancing to take a step further for real-time implementation.
  • Deep Learning techniques like U-Nets are currently being examined.
skill