Doctoral Researcher @ ETH Zurich, Research Interests: NLP for Social Good, Claim Detection and Verification, Causal NLP

Zurich, Switzerland
Joined December 2020
🚨 Call for Papers: AI for Law Workshop @icmlconf (July 10, Seoul 🇰🇷), welcomes submissions across three themes: ⚖️ AI for Legal Reasoning 📊 AI Evaluation for Law 🌍 AI for Access to Justice ⏰ Deadline: May 22 (AoE) 📄Full paper submission via: openreview.net/group?id=ICML…
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🚨 Using reasoning LLMs as annotators? You might be erasing critical human disagreements. Our EACL'25 paper shows RLVR-style reasoning actually HARMS disagreement modeling—even when carefully prompted to consider it! 🙀 📄 Paper: arxiv.org/abs/2506.19467🧵👇
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🧵[7/7] Before deploying reasoning LLMs for annotation tasks: ⚠️ Test on high-disagreement cases, not just accuracy ⚠️ Consider RLHF + CoT over pure RLVR ⚠️ Keep humans in the loop where values conflict 📂 Code & data: github.com/EdisonNi-hku/Disa…
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LEXam Update: GPT-5 Takes the Top Spot We're excited to share our latest LEXam evaluation results: - GPT-5 claims the #1 position, outperforming Gemini 2.5 Pro and setting a new state-of-the-art for legal reasoning on LEXam! - We've moved from a single GPT-4o judge to a minimum-score ensemble of GPT-4o, Qwen3-32B, and DeepSeek-V3. This ensemble was developed through iterative refinement by PhD-trained legal experts and validated via the Alt-test (Calderon et al., 2025), achieving a perfect winning rate (ω=1.00) against all three human experts. Crucially, we found that minimum-score ensembles of even open-source LLMs can match human expert judgment, making rigorous legal evaluation more accessible. - Sonnet 4.5 underperforms its predecessor Sonnet 3.7, and similarly, Qwen3-next trails behind QwQ-32B. This could suggest that the industry's current focus on coding optimization may not transfer effectively to legal reasoning tasks. - The GPT-OSS models offer exceptional accuracy-to-price ratios on LEXam. cc Yu Fan, @NJingwei, Jakob Merane, Yang Tian, @YoanHermstruwer, @YinyaHuang, @akhtarmubashara, Etienne Salimbeni, Florian Geering, Oliver Dreyer, Daniel Brunner, @LeippoldMarkus, @mrinmayasachan, @Stremitzer_Lab, Christoph Engel, @ellliottt
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🤖⚛️Can AI truly see Physics? Test your model with the newly released SeePhys Benchmark! 🚀 🖼️Covering 2,000 vision-text multimodal physics problems spanning from middle school to doctoral qualification exams, the SeePhys benchmark systematically evaluates LLMs/MLLMs on tasks integrating complex scientific diagrams with theoretical derivations. 📊Experiments reveal that even SOTA models like Gemini-2.5-Pro and o4-mini achieve accuracy rates below 55%, with over 30% error rates on simple middle-school-level problems, highlighting significant challenges in multimodal reasoning. Key Features Highlighted: 🔎Vision-Text Integration: Explicitly emphasizes multimodal reasoning failures in interpreting diagrams (e.g., circuit schematics, coordinate systems). 🔎Cross-Domain Complexity: Tests models across 7 physics domains and 8 educational tiers, exposing weaknesses in both visual grounding and logical derivation. 🔎Open-Source Design: Fully reproducible framework for diagnosing AI's "visual illiteracy" in scientific contexts. 🎖️Project led by: @kaleb962, @HengLee29423, Terry Jingchen Zhang, @YinyaHuang 💼Joint work with an exceptional team: Zirong Liu, Peixin Qu, Jixi He, Jiaqi Chen, Yu-Jie Yuan, Jianhua Han, Hang Xu, Hanhui Li, @mrinmayasachan, Xiaodan Liang 🏁The benchmark is now open for evaluation at the ICML 2025 AI for MATH Workshop. Academic and industrial teams are invited to test their models and advance multimodal physics! ⚛️Project Page: seephys.github.io 🤗Data: huggingface.co/datasets/SeeP… 📜Paper: arxiv.org/abs/2505.19099 🏆Challenge Submission: codabench.org/competitions/7… ➡️Competition Guidelines: sites.google.com/view/ai4mat…
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🚀 Huge thanks to the community! 📈 LEXam is now the #1 trending evaluation dataset on Hugging Face! Check it out: huggingface.co/datasets?othe… 🧠 Built for deep legal reasoning across 340 law exams 👩‍⚖️ Expert LLM judge evaluations, long-form + MCQs #LegalNLP #Benchmark #LLM
🚨Time to push LLMs further! 📚LEXam: The legal reasoning benchmark you’ve been waiting for: • 340 exams, 116 courses (EN/DE) • Long-form, process-focused questions • Expert-level LLM Judges • Rich meta for targeted diagnostics • Contamination-proof, extendable MCQs [1/6]🧵
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👏 Big applause to my co-authors! @yu_fan_768, Jakob, Etienne, Yang, Yoan, @YinyaHuang, @akhtarmubashara, Florian, Oliver, Daniel, @LeippoldMarkus, @mrinmayasachan, @Stremitzer_Lab, Christoph Engel, @ellliottt, and @joelniklaus!
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🚨Time to push LLMs further! 📚LEXam: The legal reasoning benchmark you’ve been waiting for: • 340 exams, 116 courses (EN/DE) • Long-form, process-focused questions • Expert-level LLM Judges • Rich meta for targeted diagnostics • Contamination-proof, extendable MCQs [1/6]🧵
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4⃣ Dig Into Weaknesses with Rich Metadata Every question includes detailed metadata (course, topic, reasoning steps), so you can pinpoint where your model struggles—be it contract law, criminal law, or multi-hop reasoning. 🔎📊 [5/6]🧵
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6⃣ Future-proof: Contamination & Extendability MCQs are permutable and extensible, making data contamination easy to check and new challenges easy to add. Benchmark stays tough as models evolve!🔒🔁 🔗Check out the paper! arxiv.org/abs/2505.12864 [6/6]🧵
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🥳Newly Accepted by NAACL 2025! [1/4] 🧵 In current information retrieval evaluation in RAGs. Three VITAL points are often missing! 1. How to define relevance? Relevance definition may vary across tasks and domains.
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[3/4] 🧵 3. How to dynamically determine the Top-K to maximize information coverage? Different queries require varying amounts of retrieved information. Determining Top-K dynamically to comprehensively supply information to LLMs remains a challenging task.
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[4/4] 🧵 These challenges looks hard to solve? Try DIRAS! A method leveraging open-source LLMs to efficiently generate high-quality annotated datasets for evaluating information retrieval performance in various RAG application domains. Link: arxiv.org/pdf/2406.14162
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