arXiv:2601.08868v1 Announce Type: new Abstract: Audio-visual embodied navigation aims to enable an agent to autonomously localize and reach a sound source in unseen 3D environments by leveraging auditory cues. The key challenge of this task lies in effectively modeling the interaction between heterogeneous features during multimodal fusion, so as to avoid single-modality dominance or information degradation, particularly in cross-domain scenarios. To address this, we propose a Cross-Modal Residual Fusion Network, which introduces bidirectional residual interactions between audio and […]

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I’m working on a project called Oracle of Urbanism, an AI-powered “policy intelligence layer” for cities. The idea is simple in concept, hard in execution: A planner uploads a map or satellite image, draws a change (bike lane, park, road closure, transit line), adds real data (air quality, traffic, census, zoning), and sets a goal like: “Reduce pollution without increasing commute times for low-income districts.” Behind the scenes, a council of AI agents (transport, environment, economy, equity) debates […]

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I have been going through GRPO and PPO today, and from what I understood is that the success heavily depeneded on the implementaiton details and the engineering quirks rather than the algorithm’s theoretical ground. As such I want to ask a question on how the industrial research in RL proceeds, is it majorly empirical results focused, or a flexible technique with decent theoretical rigor and engineering optimization? submitted by /u/Extension-Economy-78 [link] [comments]

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Not too long ago, in the Summer of 2018, I was super excited to join the Department of Statistics at the University of Wisconsin-Madison after obtaining my Ph.D. after ~5 long and productive years. Now, two semesters later after finals’ week, I finally found some quiet days to look back on what’s happened since then. In this post, I am sharing a short reflection as well as a some of the exciting projects my students were working on.

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A founder recently asked me how to stop caring what other people think. I didn’t have an answer, and after reflecting on it more, I think it’s the wrong question. Almost everyone cares what someone thinks (though caring what everyone thinks is definitely a mistake), and it’s probably important. Caring too much makes you a sheep. But you need to be at least a little in tune with others to do something useful for them. It seems like […]

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arXiv:2601.09733v1 Announce Type: new Abstract: The construction of Supervised Fine-Tuning (SFT) datasets is a critical yet under-theorized stage in the post-training of Large Language Models (LLMs), as prevalent practices often rely on heuristic aggregation without a systematic understanding of how individual samples contribute to model performance. In this report, we propose a paradigm shift from ad-hoc curation to a closed-loop dataset engineering framework using OpenDataArena (ODA), which leverages value-anchored rankings and multi-dimensional analysis to transform value benchmarking into […]

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Monitoring is a critical part of running reliable software, yet many teams only discover outages after users complaints starts rolling in. Imagine you get a Slack message at 2 AM, telling you that your APIs are down for over an hour and nobody noticed until customers started complaining. A monitoring service solves this problem by letting you and your team proactively respond to incidents, before problems escalate. In this tutorial, I will be taking you through the steps […]

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