activity
20222026
collaborators

6 papers

q-bio.GN2026

Harmonised benchmarking of foundation models for single-cell and spatial transcriptomics reveals context-dependent generalisation

Sally Chen, Roxana Zahedi, Lucy Chhuo +12

Single-cell and spatial foundation models promise transferable biological representations, yet their generality remains largely untested across modalities, biological domains and a…

cs.CV2026

Multi-Hypothesis Test-Time Adaptation to Mitigate Underspecification

Afshar Shamsi, Xiao-Yu Guo, Hamid Alinejad-Rokny +3

Test-Time Adaptation (TTA) seeks to improve model robustness under distribution shifts by adapting parameters using unlabeled target data. However, in the absence of supervision, e…

q-bio.GN2025

SemanticST: Spatially Informed Semantic Graph Learning for Clustering, Integration, and Scalable Analysis of Spatial Transcriptomics

Roxana Zahedi, Ahmadreza Argha, Nona Farbehi +4

Spatial transcriptomics (ST) technologies enable gene expression profiling with spatial resolution, offering unprecedented insights into tissue organization and disease heterogenei…

cs.LG2024

ETAGE: Enhanced Test Time Adaptation with Integrated Entropy and Gradient Norms for Robust Model Performance

Afshar Shamsi, Rejisa Becirovic, Ahmadreza Argha +3

Test time adaptation (TTA) equips deep learning models to handle unseen test data that deviates from the training distribution, even when source data is inaccessible. While traditi…

cs.LG2024

Bayesian Low-Rank LeArning (Bella): A Practical Approach to Bayesian Neural Networks

Bao Gia Doan, Afshar Shamsi, Xiao-Yu Guo +6

Computational complexity of Bayesian learning is impeding its adoption in practical, large-scale tasks. Despite demonstrations of significant merits such as improved robustness and…

eess.SP2022

HYDRA-HGR: A Hybrid Transformer-based Architecture for Fusion of Macroscopic and Microscopic Neural Drive Information

Mansooreh Montazerin, Elahe Rahimian, Farnoosh Naderkhani +3

Development of advance surface Electromyogram (sEMG)-based Human-Machine Interface (HMI) systems is of paramount importance to pave the way towards emergence of futuristic Cyber-Ph…