The research archive

Publications.

Papers, methods, and the questions they open.

Records / 11

  1. 2026

    International Conference on Learning Representations (ICLR)

    Learnable Fractional Superlets with a Spectro-Temporal Emotion Encoder for Speech Emotion Recognition

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian L. Mishara

    Learning fractional superlet representations alongside a spectro-temporal encoder for speech emotion recognition.

  2. 2025

    Applied Intelligence

    From unaltered raw waveform to emotion: Synergizing convolutional and gated recurrent networks for holistic speech emotion analysis

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian Mishara

    A journal study of CNN-n-GRU on TESS, IEMOCAP and RAVDESS, with generalization to spontaneous speech left open.

  3. 2025

    Canadian Conference on Artificial Intelligence (Canadian AI)

    Multimodal Emotion Recognition with Cross-Attentive Learning and Feature Fusion

    Alaa Nfissi, Ines Jemmali, Wassim Bouachir, Nizar Bouguila

    Cross-attention fuses audio, text and video features for multimodal emotion recognition.

  4. 2025

    Canadian Conference on Artificial Intelligence (Canadian AI)

    Neural Wavelet Packet-Based Bidirectional Autoencoder for Multi-Resolution Speech Enhancement

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila

    A bidirectional autoencoder learns wavelet-packet representations for multiresolution speech enhancement.

  5. 2025

    IEEE Transactions on Affective Computing

    SigWavNet: Learning Multiresolution Signal Wavelet Network for Speech Emotion Recognition

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian Mishara

    A trainable multiresolution wavelet network combines raw-speech representations with spatial and temporal attention.

  6. 2024

    International Conference on Machine Learning and Applications (ICMLA)

    Learnable Deep Wavelet Packet Transform for Speech Emotion Recognition in High-Risk Suicide Calls

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian Mishara

    Learned wavelet-packet decomposition and denoising for speech emotion recognition on NSPL-CRISE and IEMOCAP.

  7. 2024

    Artificial Neural Networks in Pattern Recognition (ANNPR 2024)

    Deep Multiresolution Wavelet Transform for Speech Emotion Assessment of High-Risk Suicide Callers

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian Mishara

    Learnable wavelet analysis, spatial attention and temporal attention are combined for emotion assessment in helpline speech.

  8. 2024

    Applied Intelligence

    Unveiling hidden factors: explainable AI for feature boosting in speech emotion recognition

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian Mishara

    Iterative feature selection connects model explainability with evaluation across four speech-emotion benchmarks.

  9. 2024

    2024 IEEE 18th International Conference on Semantic Computing (ICSC)

    Unlocking the Emotional States of High-Risk Suicide Callers through Speech Analysis

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian Mishara

    A CNN–GRU speech-emotion study evaluated on NSPL-CRISE crisis-helpline recordings; ICSC 2024 best student paper.

  10. 2023

    2023 22nd IEEE International Conference on Machine Learning and Applications (ICMLA)

    Iterative Feature Boosting for Explainable Speech Emotion Recognition

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian Mishara

    A Shapley-guided loop refines acoustic feature sets for explainable speech emotion recognition.

  11. 2022

    2022 21st IEEE International Conference on Machine Learning and Applications (ICMLA)

    CNN-n-GRU: end-to-end speech emotion recognition from raw waveform signal using CNNs and gated recurrent unit networks

    Alaa Nfissi, Wassim Bouachir, Nizar Bouguila, Brian L Mishara

    An end-to-end CNN–GRU model learns acoustic and temporal representations directly from speech waveforms.