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Volker Tresp

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#artificial intelligence Preprint Sep 2026

Rethinking Multi-Image Re-Representation in Multi-Image Understanding

Multi-image understanding requires MLLMs not only to recognise the content of individual images, but also to organise visual evidence distributed across them. We study this problem through multi-image re-representation, viewing prompted Chain-of-Thought reasoning and agentic visual tool use as different ways of re-orga...

Geng-Yuan Zhang, Xiao Han, Xin-Yu Xie et al. · 0 citations
#natural language process... Preprint Oct 2025

Deep Research Agents Brings Deeper Harm

Alarming misalignment in DR agents is demonstrated and underscore the urgent need for tailored alignment techniques: both the research role assignment and the multi-step execution mechanism weaken alignment of the base LLM, leading to severe safety breaches.

Shuo Chen, Zong-Gen Li, Xing-Yu Jin et al. · 2 citations · ⚡1
#natural language process... Preprint Oct 2025

Strong but Brittle: Simple Attacks Subvert Reasoning-based Safety Guardrails

It is shown that reasoning-based guardrails are necessary but not sufficient and must be paired with robust triggering mechanisms and stronger base-model alignment, and develops four simple yet effective red-teaming methods that systematically subvert different stages of the guardrails.

Shuo Chen, Zhen Han, Haokun Chen et al. · 4 citations
Preprint Aug 2026

QuoteBench: How Matched Scores Can Hide Command-Path Failures

Evaluations of command-issuing agents should report the model configuration, generation contract, execution path, operating point, and final-state validator rather than treat a matched score as an intrinsic model property.

Shangao Li, Yao Zhang, Volker Tresp et al. · 1 citation · ⚡1

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