Daniel Scalena

Daniel Scalena

@danielsc4.it

Intern of TS @Cohere | PhDing @unimib 🇮🇹 & @GroNlp 🇳🇱, interpretability et similia danielsc4.it

440 followers185 following24 posts

I'd never have guessed models commit to their final answer this early, often within the first 20% of reasoning, across math/logic tasks and model families. The rest is mostly hedging that doesn't change their mind. And turns out they encode this internally, we can decode it! 🧵👇

Sara Candussio@saracandussio.bsky.social

Are all the CoT steps necessary? In our latest paper, we find evidence for the existence of a commitment boundary, marking a sharp transition from no/mid guesses to the model final answer across various reasoning tasks and model families. Thread 🧵👇

Want models to translate in the style you actually like? Our paper is here! See you in Marocco! 🇲🇦

Gabriele Sarti@gsarti.com

Our work on contrastive SAE steering for personalizing literary machine translation was accepted to EACL main! 🎉 Check it out! ⬇️

You can easily save up to 65% of compute while improving performance on reasoning tasks 🤯 👀 Meet EAGer: We show that monitoring token-level uncertainty lets LLMs allocate compute dynamically - spending MORE on hard problems, LESS on easy ones. 🧵👇

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Results: Across 3B-20B models, EAGer cuts budget by up to 80%, boosts perf 13% w/o labels & 37% w/ labels on AIME. As M scales, EAGer consistently: 🚀 Achieves HIGHER Pass@k, ✂️ Uses FEWER tokens than baseline, 🕺 Shifts the Pareto frontier favorably across all tasks. 🧵5/

You can easily save up to 65% of compute while improving performance on reasoning tasks 🤯 👀 Meet EAGer: We show that monitoring token-level uncertainty lets LLMs allocate compute dynamically - spending MORE on hard problems, LESS on easy ones. 🧵👇

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EAGer works by monitoring token entropy during generation. High entropy token → It branches to explore new paths (reusing prefixes). Token with low entropy → It continues a single path. We cap at M sequences/prompt, saving budget on easy ones without regen. Training-free! 🧵3/

The fun part: EAGer-adapt reallocates saved budget to "saturating" prompts hitting the M cap, no labels needed! – Training & Verification-Free 🚀 Full EAGer uses labels to catch failing prompts, lowering threshold to branch or add sequences. Great for verifiable pipelines! 🧵4/

You can easily save up to 65% of compute while improving performance on reasoning tasks 🤯 👀 Meet EAGer: We show that monitoring token-level uncertainty lets LLMs allocate compute dynamically - spending MORE on hard problems, LESS on easy ones. 🧵👇

Why? Reasoning LLMs shine with CoTs, but full parallel sampling—generating multiple paths per prompt—is inefficient 😤. It wastes compute on redundant, predictable tokens, esp. for easy prompts. Hard prompts need more exploration but get the same budget. Enter EAGER🧠! 🧵2/

I’ll be attending the NEMI 2025 workshop this Friday and presenting a poster👇. Happy to chat about cool interpretability stuff there!

David Bau@davidbau.bsky.social

This Friday NEMI 2025 is at Northeastern in Boston, 8 talks, 24 roundtables, 90 posters; 200+ attendees. Thanks to goodfire.ai/ for sponsoring! nemiconf.github.io/summer25/ If you can't make it in person, the livestream will be here: www.youtube.com/live/4BJBis...

📢 New paper: Applied interpretability 🤝 MT personalization! We steer LLM generations to mimic human translator styles on literary novels in 7 languages. 📚 SAE steering can beat few-shot prompting, leading to better personalization while maintaining quality. 🧵1/

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🔍 What’s happening in the model? We find that SAE steering and multi-shot prompting impact internal representations similarly, suggesting insight from user examples are summarized with extra interpretability potential (look at latents) and better efficiency (no long context) 6/

📢 New paper: Applied interpretability 🤝 MT personalization! We steer LLM generations to mimic human translator styles on literary novels in 7 languages. 📚 SAE steering can beat few-shot prompting, leading to better personalization while maintaining quality. 🧵1/

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🌍 Across 7 languages, our SAE-based method matches or outperforms traditional prompting methods! Our method obtains better human-like translations (H) personalization accuracy (P), and maintains translation quality (Comet ☄️ @nunonmg.bsky.social) especially for smaller LLMs. 5/

📢 New paper: Applied interpretability 🤝 MT personalization! We steer LLM generations to mimic human translator styles on literary novels in 7 languages. 📚 SAE steering can beat few-shot prompting, leading to better personalization while maintaining quality. 🧵1/

📘 Literary translation isn't just about accuracy, but also creatively conveying meaning across languages. But LLMs prompted for MT are very literal. Prompting & steering to the rescue! Can we personalize LLM’s MT when few examples are available, without further tuning? 🔍 2/

📈 But can models recognize and replicate individual translator styles?: ✓ Classifiers can find styles with high acc. (humans kinda don’t) ✓ Multi-shot prompting boosts style a lot ✓ We can detect strong style traces in activations (esp. mid layers) 3/

Now on 🦋!

GroNLP@gronlp.bsky.social

Hallo wereld 🐮! We are the Computational Linguistics group at the University of Groningen, follow us for updates about our research in natural language processing, machine learning, speech technology, digital humanities and more! go.bsky.app/UDf92a2

It was great, I'm starting to get tickets for next year!

Gabriele Sarti@gsarti.com

Inaugurating my bsky account by calling #EMNLP2024 a wrap! Had lots of fun presenting our work with @danielsc4.bsky.social and Jirui, and partied hard at the RiTA 🇮🇹 meetup (60+ people joined!). See you next year in Suzhou! 🇨🇳

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