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Astronomical surveys produce time-series data by observing stellar objects across multiple wavelength bands. Foundational transformer-based models, such as Astromer, encode each time-series as a sequence of embeddings of uniform dimensions.…

天体物理仪器与方法 · 物理学 2025-06-16 Gabriel Chiong , Ignacio Becker , Pavlos Protopapas

In recent years, many mammographic image analysis methods have been introduced for improving cancer classification tasks. Two major issues of mammogram classification tasks are leveraging multi-view mammographic information and…

计算机视觉与模式识别 · 计算机科学 2023-09-08 Thanh-Huy Nguyen , Quang Hien Kha , Thai Ngoc Toan Truong , Ba Thinh Lam , Ba Hung Ngo , Quang Vinh Dinh , Nguyen Quoc Khanh Le

The Vera Rubin Observatory, set to begin observations in mid-2024, will increase our discovery rate of supernovae to well over one million annually. There has been a significant push to develop new methodologies to identify, classify and…

高能天体物理现象 · 物理学 2022-11-10 V. Ashley Villar

Deep neural networks (DNNs) exhibit high performance in image recognition; however, the reasons for their strong generalization abilities remain unclear. A plausible hypothesis is that DNNs achieve robust and accurate predictions by…

机器学习 · 计算机科学 2025-05-30 Keisuke Kawano , Takuro Kutsuna , Keisuke Sano

Multimodal learning is an emerging research topic across multiple disciplines but has rarely been applied to planetary science. In this contribution, we propose a single, unified transformer architecture trained to learn shared…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Tom Sander , Moritz Tenthoff , Kay Wohlfarth , Christian Wöhler

We present RAVEN an adaptive AI agent framework designed for multimodal entity discovery and retrieval in large-scale video collections. Synthesizing information across visual, audio, and textual modalities, RAVEN autonomously processes…

信息检索 · 计算机科学 2025-04-10 Kevin Dela Rosa

With the upcoming Vera C.~Rubin Observatory Legacy Survey of Space and Time (LSST), it is expected that only $\sim 0.1\%$ of all transients will be classified spectroscopically. To conduct studies of rare transients, such as Type I…

高能天体物理现象 · 物理学 2023-07-18 Brian Hsu , Griffin Hosseinzadeh , V. Ashley Villar , Edo Berger

Astronomical observations already produce vast amounts of data through a new generation of telescopes that cannot be analyzed manually. Next-generation telescopes such as the Large Synoptic Survey Telescope and the Square Kilometer Array…

天体物理仪器与方法 · 物理学 2019-10-09 Giuseppe Longo , Erzsébet Merényi , Peter Tino

The European Space Agency's Copernicus Sentinel-1 (S-1) mission is a constellation of C-band synthetic aperture radar (SAR) satellites that provide unprecedented monitoring of the world's oceans. S-1's wave mode (WV) captures 20x20 km image…

The scientific study of the retina has reached a remarkable state of completion. We can now explain many aspects of early visual processing based on a relatively simple model of neural circuitry in the retina. The same model, with different…

神经元与认知 · 定量生物学 2025-10-22 Markus Meister

Visual anomaly detection in real-world industrial settings faces two major limitations. First, most existing methods are trained on purely normal data or on unlabeled datasets assumed to be predominantly normal, presuming the absence of…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Anindya Sundar Das , Monowar Bhuyan

We present Masked Frequency Modeling (MFM), a unified frequency-domain-based approach for self-supervised pre-training of visual models. Instead of randomly inserting mask tokens to the input embeddings in the spatial domain, in this paper,…

计算机视觉与模式识别 · 计算机科学 2023-04-26 Jiahao Xie , Wei Li , Xiaohang Zhan , Ziwei Liu , Yew Soon Ong , Chen Change Loy

Despite the recent success of Multimodal Foundation Models (FMs), their reliance on massive paired datasets limits their applicability in low-data and rare-scenario settings where aligned data is scarce and expensive. A key bottleneck is…

机器学习 · 计算机科学 2026-05-14 Truong Pham , Anay Majee , Rishabh Iyer

In astronomy, there is an opportunity to enhance the practice of validating models through statistical techniques, specifically to account for measurement error uncertainties. While models are commonly used to describe observations, there…

天体物理仪器与方法 · 物理学 2023-08-09 Fiorenzo Stoppa , Eric Cator , Gijs Nelemans

As an effective way to integrate the information contained in multiple medical images under different modalities, medical image synthesis and fusion have emerged in various clinical applications such as disease diagnosis and treatment…

图像与视频处理 · 电气工程与系统科学 2021-09-07 Yuhao Wang , Ruirui Liu , Zihao Li , Cailian Yang , Qiegen Liu

This paper frames a general prediction system as an observer traveling around a continuous space, measuring values at some locations, and predicting them at others. The observer is completely agnostic about any particular task being solved;…

神经与进化计算 · 计算机科学 2021-03-24 Elliot Meyerson , Risto Miikkulainen

In biomedical science, a set of objects or persons can often be described by multiple distinct sets of features obtained from different data sources or modalities (called "multi-view data"). Classical machine learning methods ignore the…

统计计算 · 统计学 2025-04-25 Wouter van Loon

Astronomy produces extremely large data sets from ground-based telescopes, space missions, and simulation. The volume and complexity of these rich data sets require new approaches and advanced tools to understand the information contained…

天体物理仪器与方法 · 物理学 2014-02-25 Demitri Muna , Eric Huff

As a successful approach to self-supervised learning, contrastive learning aims to learn invariant information shared among distortions of the input sample. While contrastive learning has yielded continuous advancements in sampling strategy…

机器学习 · 计算机科学 2023-08-11 Jiangmeng Li , Wenwen Qiang , Yanan Zhang , Wenyi Mo , Changwen Zheng , Bing Su , Hui Xiong

In this paper, we investigate the in-context learning ability of retrieval-augmented encoder-decoder language models. We first conduct a comprehensive analysis of existing models and identify their limitations in in-context learning,…

计算与语言 · 计算机科学 2024-08-20 Jie Huang , Wei Ping , Peng Xu , Mohammad Shoeybi , Kevin Chen-Chuan Chang , Bryan Catanzaro