Infectious Disease

COVID-19

Latest AI and machine learning research in covid-19 for healthcare professionals.

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Moondream Segmentation: From Words to Masks

We present Moondream Segmentation, a referring image segmentation extension of Moondream 3, a vision-language model. Given an image and a referring expression, the model autoregressively decodes a vector path and iteratively refines the rasterized mask into a final detailed mask. We introduce a reinforcement learning stage that resolves ambiguity in the supervised signal by directly optimizing mas...

Apr 3 2026 2604.02593v1

Few-Shot Distribution-Aligned Flow Matching for Data Synthesis in Medical Image Segmentation

Data heterogeneity hinders clinical deployment of medical image analysis models, and generative data augmentation helps mitigate this issue. However, recent diffusion-based methods that synthesize image-mask pairs often ignore distribution shifts between generated and real images across scenarios, and such mismatches can markedly degrade downstream performance. To address this issue, we propose Al...

Apr 3 2026 2604.02868v1
Label Shift Estimation With Incremental Prior Update

An assumption often made in supervised learning is that the training and testing sets have the same label distribution. However, in real-life scenario...

Apr 2 2026 2604.01651v1
Predicting COVID-19 incidence from seroprevalence and population-based cohort data using interpretable machine learning with differential privacy analysis

During the COVID-19 pandemic, reported incidence data played a central role in public health surveillance and in tracking epidemic dynamics, although ...

Screening for prostate cancer using PSA with and without MRI: systematic reviews with meta-analysis

Background: Previous recommendations on screening for prostate cancer relied on ongoing trials of screening with prostate-specific antigen (PSA), whic...

Adapting SAM to Nuclei Instance Segmentation and Classification via Cooperative Fine-Grained Refinement

Nuclei instance segmentation is critical in computational pathology for cancer diagnosis and prognosis. Recently, the Segment Anything Model has demon...

Mar 30 2026 2603.28027v1
EdgeDiT: Hardware-Aware Diffusion Transformers for Efficient On-Device Image Generation

Diffusion Transformers (DiT) have established a new state-of-the-art in high-fidelity image synthesis; however, their massive computational complexity...

Mar 30 2026 2603.28405v1
Estimating the Impact of COVID-19 on Travel Demand in Houston Area Using Deep Learning and Satellite Imagery

Considering recent advances in remote sensing satellite systems and computer vision algorithms, many satellite sensing platforms and sensors have been...

Mar 29 2026 2603.27486v1
Understanding Semantic Perturbations on In-Processing Generative Image Watermarks

The widespread deployment of high-fidelity generative models has intensified the need for reliable mechanisms for provenance and content authenticatio...

Mar 29 2026 2603.27513v1
RAP: Retrieve, Adapt, and Prompt-Fit for Training-Free Few-Shot Medical Image Segmentation

Few-shot medical image segmentation (FSMIS) has achieved notable progress, yet most existing methods mainly rely on semantic correspondences from scar...

Mar 29 2026 2603.27705v1
AI-Powered Facial Mask Removal Is Not Suitable For Biometric Identification

Recently, crowd-sourced online criminal investigations have used generative-AI to enhance low-quality visual evidence. In one high-profile case, socia...

Mar 29 2026 2603.27747v1
Bridging Pixels and Words: Mask-Aware Local Semantic Fusion for Multimodal Media Verification

As multimodal misinformation becomes more sophisticated, its detection and grounding are crucial. However, current multimodal verification methods, re...

Mar 27 2026 2603.26052v1
HealthFormer: Dual-level time-aware Transformers for irregular electronic health record events

Longitudinal electronic health records (EHRs) form irregular event sequences that mix multiple clinical coding systems and care settings. Learning tra...

GYDE: A collaborative drug discovery platform for AI-powered protein design and engineering

As computational tools and machine learning models for protein sciences continue to advance and proliferate, bench scientists face increasing technica...

Incorporating contextual information into KGWAS for interpretable GWAS discovery

Genome-Wide Association Studies (GWAS) identify associations between genetic variants and disease; however, moving beyond associations to causal mecha...

Mar 26 2026 2603.25855v1
Evaluating Evo 2 for plant variant effect prediction

The genomic foundation model Evo 2 enables zero-shot variant effect prediction. Here, we evaluate its performance using Arabidopsis thaliana reproduct...

Activation Matters: Test-time Activated Negative Labels for OOD Detection with Vision-Language Models

Out-of-distribution (OOD) detection aims to identify samples that deviate from in-distribution (ID). One popular pipeline addresses this by introducin...

Mar 26 2026 2603.25250v1
PMT: Plain Mask Transformer for Image and Video Segmentation with Frozen Vision Encoders

Vision Foundation Models (VFMs) pre-trained at scale enable a single frozen encoder to serve multiple downstream tasks simultaneously. Recent VFM-base...

Mar 26 2026 2603.25398v1
PerturbationDrive: A Framework for Perturbation-Based Testing of ADAS

Advanced driver assistance systems (ADAS) often rely on deep neural networks to interpret driving images and support vehicle control. Although reliabl...

Mar 24 2026 2603.23661v1
EpiMask: Leveraging Epipolar Distance Based Masks in Cross-Attention for Satellite Image Matching

The deep-learning based image matching networks can now handle significantly larger variations in viewpoints and illuminations while providing matched...

Mar 23 2026 2603.21463v1
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