activity
20192026
most citedVariational Representation Learning for Vehicle Re-Identification

17 citations · 33 across the 18 of their papers we have counts for

collaborators

19 papers

q-bio.QM2026

WILSON - Multi-magnification composites as a foundation for patient-level pathology analysis and diagnostic text generation

Saghir Alfasly, Wataru Uegami, Sobhan Hemati +17

Pathologists examine tissue sections across multiple magnifications and slides, integrating morphological information to establish a diagnosis. In contrast, most pathology foundati…

cs.IR2026

Reducing Redundancy in Whole-Slide Image Patching for Scalable Indexing and Retrieval

Jialiang Geng, Ghazal Alabtah, Saghir Alfasly +2

The rapid growth of digital pathology has created an urgent need for efficient indexing and retrieval of whole slide images (WSIs). This need is intensified by emerging generative…

cs.CV2026

CRISP -- Clustering-Based Redundancy-Reduced Instance Sampling for Pathology Case Representation and Retrieval

Zahra Rahimi Afzal, Wataru Uegami, Saghir Alfasly +6

Digital pathology archives increasingly contain multiple whole-slide images (WSIs) per case, capturing spatially distinct tumor regions and reflecting intrinsic morphological heter…

cs.CV2026

Validation of Whole-Slide Foundation Models for Image Retrieval in TCGA Data

Tianhao Lei, Parsa Esmaeilkhani, Saghir Alfasly +5

Foundation models are reshaping computational histopathology, yet their value for whole-slide image retrieval relative to strong patch-based and supervised aggregation baselines re…

cs.CV2026

Retrieval-Guided Generation for Safer Histopathology Image Captioning

Md. Enamul Hoq, Wataru Uegami, Saghir Alfasly +6

Generative vision-language models can produce fluent medical image captions but remain prone to hallucination, over-specific diagnostic claims, and factual inconsistency-serious is…

cs.CV2025

Semantic and Visual Crop-Guided Diffusion Models for Heterogeneous Tissue Synthesis in Histopathology

Saghir Alfasly, Wataru Uegami, MD Enamul Hoq +2

Synthetic data generation in histopathology faces unique challenges: preserving tissue heterogeneity, capturing subtle morphological features, and scaling to unannotated datasets.…

eess.IV2025

Overfitting in Histopathology Model Training: The Need for Customized Architectures

Saghir Alfasly, Ghazal Alabtah, H. R. Tizhoosh

This study investigates the critical problem of overfitting in deep learning models applied to histopathology image analysis. We show that simply adopting and fine-tuning large-sca…

eess.IV2025

Aggregation Schemes for Single-Vector WSI Representation Learning in Digital Pathology

Sobhan Hemati, Ghazal Alabtah, Saghir Alfasly +1

A crucial step to efficiently integrate Whole Slide Images (WSIs) in computational pathology is assigning a single high-quality feature vector, i.e., one embedding, to each WSI. Wi…

eess.IV2024

Zero-Shot Whole Slide Image Retrieval in Histopathology Using Embeddings of Foundation Models

Saghir Alfasly, Ghazal Alabtah, Sobhan Hemati +2

We have tested recently published foundation models for histopathology for image retrieval. We report macro average of F1 score for top-1 retrieval, majority of top-3 retrievals, a…

eess.IV2024

Multimodal Learning for Scalable Representation of High-Dimensional Medical Data

Areej Alsaafin, Abubakr Shafique, Saghir Alfasly +2

Integrating artificial intelligence (AI) with healthcare data is rapidly transforming medical diagnostics and driving progress toward precision medicine. However, effectively lever…

cs.CL2024

AlcLaM: Arabic Dialectal Language Model

Murtadha Ahmed, Saghir Alfasly, Bo Wen +3

Pre-trained Language Models (PLMs) are integral to many modern natural language processing (NLP) systems. Although multilingual models cover a wide range of languages, they often g…

eess.IV2024

SPLICE -- Streamlining Digital Pathology Image Processing

Areej Alsaafin, Peyman Nejat, Abubakr Shafique +4

Digital pathology and the integration of artificial intelligence (AI) models have revolutionized histopathology, opening new opportunities. With the increasing availability of Whol…

eess.IV2024★ 10 cited

Analysis and Validation of Image Search Engines in Histopathology

Isaiah Lahr, Saghir Alfasly, Peyman Nejat +16

Searching for similar images in archives of histology and histopathology images is a crucial task that may aid in patient matching for various purposes, ranging from triaging and d…

cs.CV2023

Selection of Distinct Morphologies to Divide & Conquer Gigapixel Pathology Images

Abubakr Shafique, Saghir Alfasly, Areej Alsaafin +3

Whole slide images (WSIs) are massive digital pathology files illustrating intricate tissue structures. Selecting a small, representative subset of patches from each WSI is essenti…

cs.CV2023

Rotation-Agnostic Image Representation Learning for Digital Pathology

Saghir Alfasly, Abubakr Shafique, Peyman Nejat +4

This paper addresses complex challenges in histopathological image analysis through three key contributions. Firstly, it introduces a fast patch selection method, FPS, for whole-sl…

cs.IR2023★ 6 cited

When is a Foundation Model a Foundation Model

Saghir Alfasly, Peyman Nejat, Sobhan Hemati +13

Recently, several studies have reported on the fine-tuning of foundation models for image-text modeling in the field of medicine, utilizing images from online data sources such as…

cs.CV2023

OSRE: Object-to-Spot Rotation Estimation for Bike Parking Assessment

Saghir Alfasly, Zaid Al-huda, Saifullah Bello +3

Current deep models provide remarkable object detection in terms of object classification and localization. However, estimating object rotation with respect to other visual objects…

cs.CV2022

Learnable Irrelevant Modality Dropout for Multimodal Action Recognition on Modality-Specific Annotated Videos

Saghir Alfasly, Jian Lu, Chen Xu +1

With the assumption that a video dataset is multimodality annotated in which auditory and visual modalities both are labeled or class-relevant, current multimodal methods apply mod…

cs.CV2019★ 17 cited

Variational Representation Learning for Vehicle Re-Identification

Saghir Ahmed Saghir Alfasly, Yongjian Hu, Tiancai Liang +3

Vehicle Re-identification is attracting more and more attention in recent years. One of the most challenging problems is to learn an efficient representation for a vehicle from its…