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Diffusion-based samplers -- Score Based Diffusions, Bridge Diffusions and Path Integral Diffusions -- match a target at terminal time, but the real leverage comes from choosing the schedule that governs the intermediate-time dynamics. We…

机器学习 · 计算机科学 2025-12-16 Michael Chertkov , Hamidreza Behjoo

We present our implementation of an automated VLBI data reduction pipeline dedicated to interferometric data imaging and analysis. The pipeline can handle massive VLBI data efficiently which makes it an appropriate tool to investigate…

天体物理仪器与方法 · 物理学 2017-12-07 M. Zhang , A. Collioud , P. Charlot

Current time domain facilities are discovering hundreds of new galactic and extra-galactic transients every week. Classifying the ever-increasing number of transients is challenging, yet crucial to further our understanding of their nature,…

天体物理仪器与方法 · 物理学 2019-07-10 M. Rigault , J. D. Neill , N. Blagorodnova , A. Dugas , M. Feeney , R. Walters , Y. Copin , V. Brinnel , C. Fremling , J. Nordin , J. Sollerman

The effectiveness of the machine learning methods for real-world tasks depends on the proper structure of the modeling pipeline. The proposed approach is aimed to automate the design of composite machine learning pipelines, which is…

Atmospheric profiling is a requirement for controlling wide-field Adaptive Optics (AO) instruments, analyzing the AO performance with respect to the observing conditions and predicting the Point Spread Function (PSF) spatial variations. We…

天体物理仪器与方法 · 物理学 2019-04-17 Olivier Beltramo-Martin , Nazim A. Bharmal , Carlos M. Correia

We report a new version of spectral phase interferometry for direct electric field reconstruction (SPIDER), which enables consistency checking through the simultaneous acquisition of multiple shears and offers a simple and precise…

光学 · 物理学 2019-03-27 Tobias Witting , Dane R. Austin , Ian A. Walmsley

Here, I present the community with exoTEDRF (EXOplanet Transit and Eclipse Data Reduction Framework; formerly known as supreme-SPOON), an end-to-end pipeline for data reduction and light curve analysis of time series observations (TSOs) of…

天体物理仪器与方法 · 物理学 2024-07-26 Michael Radica

Diffusion models with transformer architectures have demonstrated promising capabilities in generating high-fidelity images and scalability for high resolution. However, iterative sampling process required for synthesis is very…

计算机视觉与模式识别 · 计算机科学 2025-04-16 Yeongmin Kim , Sotiris Anagnostidis , Yuming Du , Edgar Schönfeld , Jonas Kohler , Markos Georgopoulos , Albert Pumarola , Ali Thabet , Artsiom Sanakoyeu

In recent years, light fields have become a major research topic and their applications span across the entire spectrum of classical image processing. Among the different methods used to capture a light field are the lenslet cameras, such…

计算机视觉与模式识别 · 计算机科学 2018-08-17 Pierre Matysiak , Mairéad Grogan , Mikaël Le Pendu , Martin Alain , Aljosa Smolic

Given the extreme precision attainable with the Kepler Space Telescope, the mitigation of instrumental artefacts is very important. In an earlier paper (Murphy 2012), the characteristics of Kepler data were discussed in light of their…

太阳与恒星天体物理 · 物理学 2013-04-11 S. J. Murphy

New and upgraded radio interferometers produce data at massive rates and will require significant improvements in analysis techniques to reach their promised levels of performance in a routine manner. Until these techniques are fully…

天体物理仪器与方法 · 物理学 2012-06-29 Peter K. G. Williams , Casey J. Law , Geoffrey C. Bower

We present the results of integration and characterization of the SPIDER instrument after the 2013 pre-flight campaign. SPIDER is a balloon-borne polarimeter designed to probe the primordial gravitational wave signal in the degree-scale…

Direct imaging characterization of extrasolar planets is often done at low spectral resolution. We model the spectrograph for the Gemini Planet Imager upgrade (GPI 2.0) and assess the instrument's potential for allowing observers to…

地球与行星天体物理 · 物理学 2022-08-31 Arlene Aleman , Bruce Macintosh , Mary Anne Limbach , Mark Marley , Jeffrey Chilcote , Quinn Konopacky , Dmitry Savransky

I present version 5.0 of FRELLED, the FITS Realtime Explorer of Low Latency in Every Dimension. This is a 3D data visualisation package for the popular Blender art software, designed to allow inspection of astronomical volumetric data sets…

天体物理仪器与方法 · 物理学 2025-01-07 Rhys Taylor

Modern LLM pipelines increasingly resemble complex data-centric applications: they retrieve data, correct errors, call external tools, and coordinate interactions between agents. Yet, the central element controlling this entire process --…

数据库 · 计算机科学 2026-04-07 Ugur Cetintemel , Shu Chen , Alexander W. Lee , Deepti Raghavan , Duo Lu , Andrew Crotty

KMOS is a multi-object near-infrared integral field spectrometer with 24 deployable pick-off arms. Data processing is inevitably complex. We discuss specific issues and requirements that must be addressed in the data reduction pipeline, the…

天体物理仪器与方法 · 物理学 2015-05-19 Richard Davies , Alex Agudo Berbel , Erich Wiezorrek , Thomas Ott , Natascha Foerster Schreiber

The SPIFFI integral field spectrometer is operated as a subunit of the AO instrument SINFONI on the VLT. It will be upgraded and reused as SPIFFIER in the new VLT instrument ERIS. In January 2016 an early upgrade of several optical…

天体物理仪器与方法 · 物理学 2016-12-15 Dominik Gräff

We present SPIKE (Spectrometry Processing Innovative KErnel), an open-source Python package dedicated to Fourier spectroscopies. It provides basic functionalities such as apodisation, a complete set of Fourier transforms, phasing for NMR),…