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S. Tsaftaris

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#artificial intelligence Review Oct 2026

Large Language Models Extend Known Research But Do Not Create New Research Directions

The success of autonomous research systems relies on the quality of the scientific hypotheses they generate. Recent studies report that human reviewers often rate LLM-generated ideas as more novel than those from human experts, raising hope that AI can accelerate scientific discovery. Yet it is unclear whether these mo...

Zhi-Hua Liu, Kurt Butler, Damian Machlanski et al. · 0 citations
#artificial intelligence Preprint Nov 2025

MedVision: Benchmarking Quantitative Medical Image Analysis

This work introduces MedVision, a large-scale dataset and benchmark specifically designed to evaluate and improve VLMs on quantitative medical image analysis, and demonstrates how supervised and reinforcement fine-tuning on MedVision significantly enhances performance across detection, T/L size estimation, and A/D meas...

Yongcheng Yao, Yongshuo Zong, Raman Dutt et al. · 0 citations
Preprint Jul 2026

Entangled by Design: Spurious Intra-Variable Signal Routing in Tabular In-Context Learners

It is proved that under ridge ICL, a linear in-context learner, this routing is unavoidable regardless of context size; TabPFN, a state-of-the-art pretrained tabular ICL model, shows qualitatively consistent behaviour empirically, and two lightweight mitigations are introduced.

Athanasios Vlontzos, G. Papanastasiou, Bernhard Kainz et al. · 0 citations
Preprint Jul 2026

From Training to Deployment: Post-Hoc Causal Feature Identification via Sensitivity Ratios

The Normalised Sensitivity Ratio (NSR) is introduced, a post-hoc, model-agnostic diagnostic for this question under a structured-shift regime: environments differ primarily in the mean of spurious features while the causal mechanism and causal marginals remain stable, as in multi-site clinical data or multi-batch genom...

Athanasios Vlontzos, G. Papanastasiou, Bernhard Kainz et al. · 0 citations

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