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we mapped tents in Rafah by applying machine learning to high resolution satellite imagery from Planet. we also show damaged buildings from analysis done by corey scher and Jamon Van Den Hoek. 🛰️ read here 🎁: a small thread with some model specifics 🧵

82,451 просмотров • 2 лет назад •via X (Twitter)

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NEW: Detailed assessment of the Israeli strike on Taleghan 2, a site "used by the Iranian regime to advance nuclear weapons capabilities," according to the IDF. We detail the damage done to the newly constructed, bunkered facility, and nearby structures. Below is a composite image created by transparently overlaying the post-strike satellite photograph taken by Vantor on 11 March 2026 onto earlier pre-strike imagery. The overlays are designed to demonstrate the high precision of the bombing campaign, accurately targeting the facility despite its recent reinforcement — including full concrete encasement and a thick overlying layer of earth. They show that the bunker buster bombs were not only precisely on target along the length of the main suspected high explosive test chamber hall, but it is clear that the bombs successfully penetrated the encasing concrete sarcophagus into the interior given the evidence that the main blast(s) traveled outward from the interior to cause significant collateral damage in knocking down a protective defensive wall just outside the northern entrance. A small building southeast of the facility appears to have been partially destroyed by the concussion from the main bunker buster blasts. Construction of the new facility only started in May 2025, following Israel's October 2024 strike on the previous facility. During construction, satellite imagery showed the front cylindrical portion of what may have been a high explosive containment vessel (see below). We also provide background on the broader Taleghan site, which includes a location known as Taleghan 1 rooted in Iran's Amad Plan and which we have been monitoring for almost 15 years.

Inst for Science

13,832 просмотров • 4 месяцев назад

The term "continual learning" has become overloaded if you see it as an ML problem. One classic thread is about memorization: regularization-based continual learning methods, such as EWC, MAS, and SI, estimate which parameters mattered for previous tasks and resist changing them too much. One modern thread is about adaptation: test-time training and inference-time learning methods, such as TTT, adapt part of the model on the incoming test stream before making predictions. These are sometimes discussed as separate threads. But in modern scalable architectures, I think they are better seen as complementary constraints: a model that learns quickly at test time also benefits from a mechanism for deciding what not to forget. In our #ECCV2026 paper, we study this in large-scale 4D reconstruction: how to build fast spatial memory that can adapt over long observation streams while reducing collapse and forgetting. Instead of using fully plastic test-time updates, we stabilize fast-weight adaptation with an elastic prior that balances adaptation and memory. Key ideas: - Elastic Test-Time Training: Fisher-weighted consolidation for fast-weight updates - EMA anchor weights that provide a moving reference for stability - Chunk-by-chunk inference for long 3D/4D observation streams We show that this scales across large 3D/4D pretraining settings, including both LRM-style and LVSM-style models, and improves reconstruction across benchmarks including Stereo4D, NVIDIA, and DL3DV-140. We release model checkpoints across different design choices: resolution, post-training curriculum, and whether the model uses an explicit 4DGS intermediate representation. - Homepage: - Paper: - Code: - Models: This work is co-led with Xueyang Yu, contributed by Haoyu Zhen Yuncong Yang, and advised by Michigan SLED Lab Chuang Gan.

Martin Ziqiao Ma

32,705 просмотров • 26 дней назад

Depth Any Video with Scalable Synthetic Data AI physicists and chemists continue to make strides in depth estimation from video. Check out this new paper featuring some impressive examples. See the thread for more details (unfortunately no code yet). Abstract: Video depth estimation has long been hindered by the scarcity of consistent and scalable ground truth data, leading to inconsistent and unreliable results. In this paper, we introduce Depth Any Video, a model that tackles the challenge through two key innovations. First, we develop a scalable synthetic data pipeline, capturing real-time video depth data from diverse game environments, yielding 40,000 video clips of 5-second duration, each with precise depth annotations. Second, we leverage the powerful priors of generative video diffusion models to handle real-world videos effectively, integrating advanced techniques such as rotary position encoding and flow matching to further enhance flexibility and efficiency. Unlike previous models, which are limited to fixed-length video sequences, our approach introduces a novel mixed-duration training strategy that handles videos of varying lengths and performs robustly across different frame rates 0 - even on single frames. At inference, we propose a depth interpolation method that enables our model to infer high-resolution video depth across sequences of up to 150 frames. Our model outperforms all previous generative depth models in terms of spatial accuracy and temporal consistency.

MrNeRF

27,428 просмотров • 1 год назад