Ankit Ghimire

Undergraduate Researcher · University of Southern Mississippi

I'm a junior studying Computer Science (B.S.) with a minor in Mathematics at USM. I work in the Cyber Innovation Lab on graph neural networks, hyperbolic representation learning, and multimodal AI.

Research Interests

Publications

Peer-Reviewed

POVQA: Preference-Optimized Video Question Answering with Rationales for Data Efficiency

A. Dahal, A. Ghimire, S. A. Murad, N. Rahimi

IEEE/CVF CVPR Workshops (CVPRW), 2026

Preprints

Redemption Score: A Multi-Modal Evaluation Framework for Image Captioning via Distributional, Perceptual, and Linguistic Signal Triangulation

A. Dahal, A. Ghimire*, S. A. Murad, N. Rahimi

arXiv:2505.16180 · 2025

arXiv

A Depth-Aware Comparative Study of Euclidean and Hyperbolic Graph Neural Networks on Bitcoin Transaction Systems

A. Ghimire, S. A. Murad, N. Rahimi

arXiv:2603.16080 · 2026

arXiv

Experience

Undergraduate Researcher Jan 2025 – Present
Cyber Innovation Lab, University of Southern Mississippi
  • Euclidean and hyperbolic GNNs for fraud detection in large-scale Bitcoin transaction graphs.
  • Multimodal evaluation frameworks for image captioning using distributional, perceptual, and linguistic signals.
  • Long-context multimodal video QA with rationale supervision and preference optimization.
  • Graph out-of-distribution generalization and robustness in GNNs.

Honors & Awards