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mk.co.kr · Nov 4

It has been confirmed that a Chinese-linked hacking organization has simultaneously attacked more th..

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Top picks this weekarXiv

arXiv

Nov 3

Nearly Linear-Time Follow-the-Perturbed-Leader for Weakly Observable Graph Bandits

We study online learning with directed weakly observable feedback graphs and propose a Follow-the-Perturbed-Leader (FTPL) policy that achieves best-of-both-worlds guarantee with nearly linear expected time complexity. To preserve the simple structure of FTPL, we develop a novel graph-based loss estimator that combines forced exploration, conditional geometric resampling and adaptive learning rates with surrogate probabilities. Our policy achieves $\tilde{\mathcal{O}}(δ_*^{1/3} T^{2/3})$ regret for adversarial regimes as well as $\tilde{\mathcal{O}}(δ_* \log T / Δ_{\min}^2)$ regret for stochastic regimes, where $δ_*$ and $Δ$, respectively, denote the fractional weak domination number and the suboptimality gap. These results show that refined guarantees for problems with minimax regret of $Θ(T^{2/3})$ can be obtained through appropriately designed adaptive learning rates and loss estimators without sacrificing the simplicity of FTPL.

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arXiv

Sep 21

MiTHras: Task-specific Hierarchical Semi-supervised Contrastive Masked Autoencoder for Mitotic Figure Analysis

Mitotic figure (MF) analysis supports tumor grading and prognostic assessment, but automated models remain sensitive to differences in tissue type and image acquisition. We present MiTHras, a task-specific pretraining framework that combines pseudo-label-guided image- and…

arXiv

Sep 21

GraphSVR: q-Space--Aware Graph-Based Slice-to-Volume Registration for Diffusion MRI

Diffusion-weighted imaging (DWI) remains highly vulnerable to subject motion, particularly in time-efficient protocols and in motion-prone populations. While slice-to-volume registration (SVR) can mitigate inter-slice and inter-stack misalignment, diffusion MRI introduces…

arXiv

Sep 21

ReSTI: A Source-Grounded Audit and Repair of STI-Bench

Spatial--temporal benchmarks are valid only when their questions, source annotations, and answer options identify the same physical quantity. We audit STI-Bench against the official ScanNet, Waymo, and Omni6DPose sources and find systematic coordinate-system and timestamp…

arXiv

Sep 21

A digital-twin framework for forecasting treatment-day imaging with contour uncertainty in adaptive proton radiotherapy

Head-and-neck anatomy changes over a six-to-seven-week proton course, and the anatomy of a later week cannot be imaged when the plan is made. We present a digital-twin framework that forecasts a patient's treatment-day anatomy as an ensemble of predicted CTs with propagated…

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It has been confirmed that a Chinese-linked hacking organization has simultaneously attacked more th..

Infrastructure Processing Units: The Unsung Heroes Of The Data Centre

Pulse

Nearly Linear-Time Follow-the-Perturbed-Leader for Weakly Observable Graph Bandits

speridlabs/idol

wangzan101/Mika

Patrick Stewart has died

DSCI Floats Framework To Determine Liability For Harm Caused By AI Agents

Top picks

MiTHras: Task-specific Hierarchical Semi-supervised Contrastive Masked Autoencoder for Mitotic Figure Analysis

GraphSVR: q-Space--Aware Graph-Based Slice-to-Volume Registration for Diffusion MRI

ReSTI: A Source-Grounded Audit and Repair of STI-Bench

A digital-twin framework for forecasting treatment-day imaging with contour uncertainty in adaptive proton radiotherapy

Today's trail

This week in Multimodal

It has been confirmed that a Chinese-linked hacking organization has simultaneously attacked more th..

Infrastructure Processing Units: The Unsung Heroes Of The Data Centre

Nearly Linear-Time Follow-the-Perturbed-Leader for Weakly Observable Graph Bandits

speridlabs/idol

wangzan101/Mika

Patrick Stewart has died

DSCI Floats Framework To Determine Liability For Harm Caused By AI Agents

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Rising tools

MiTHras: Task-specific Hierarchical Semi-supervised Contrastive Masked Autoencoder for Mitotic Figure Analysis

GraphSVR: q-Space--Aware Graph-Based Slice-to-Volume Registration for Diffusion MRI

ReSTI: A Source-Grounded Audit and Repair of STI-Bench

A digital-twin framework for forecasting treatment-day imaging with contour uncertainty in adaptive proton radiotherapy