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相关论文: RadVel: The Radial Velocity Modeling Toolkit

200 篇论文

Many sophisticated computer models have been developed to understand the behaviour of particle accelerators. Even these complex models often do not describe the measured data. Interactions of the beam with external fields, other particles…

Variational Inference (VI) offers a method for approximating intractable likelihoods. In neural VI, inference of approximate posteriors is commonly done using an encoder. Alternatively, encoderless VI offers a framework for learning…

机器学习 · 计算机科学 2023-01-18 Amir Zadeh , Santiago Benoit , Louis-Philippe Morency

Precision radial velocity (RV) measurements continue to be a key tool to detect and characterise extrasolar planets. While instrumental precision keeps improving, stellar activity remains a barrier to obtain reliable measurements below 1-2…

We introduce Mahakala, a Python-based, modular, radiative ray-tracing code for curved space-times. We employ Google's JAX framework for accelerated automatic differentiation, which can efficiently compute Christoffel symbols directly from…

高能天体物理现象 · 物理学 2025-05-20 Aniket Sharma , Lia Medeiros , Chi-kwan Chan , Goni Halevi , Patrick D. Mullen , James M. Stone , George N. Wong

Extreme precision radial velocity (EPRV) surveys usually require extensive observational baselines to confirm planetary candidates, making them resource-intensive. Traditionally, periodograms are used to identify promising candidate signals…

地球与行星天体物理 · 物理学 2025-10-09 Anoop Gavankar , Tanish Mittal , Joe Ninan , Shravan Hanasoge

The RAdial Velocity Experiment (RAVE) is a spectroscopic survey of the Milky Way. We use the subsample of spectra with spectroscopically determined values of stellar parameters to determine the distances to these stars. The list currently…

This work assesses the potential capability of the next generation of high-precision Radial Velocity (RV) instruments for Earth-twin exoplanet detection. From the perspective of the importance of data sampling, the Terra Hunting Experiment…

地球与行星天体物理 · 物理学 2018-06-13 Richard D. Hall , Samantha J. Thompson , Will Handley , Didier Queloz

This paper studies the design of a Model Predictive Controller (MPC) for integrated lateral stability, traction/braking control, and rollover prevention of electric vehicles intended for very high speed (VHS) racing applications. We first…

系统与控制 · 电气工程与系统科学 2023-06-12 Jad Yahya , Siddharth Saha , Haoru Xue , Allen Y. Yang

Recent advances in high-fidelity simulators have enabled closed-loop training of autonomous driving agents, potentially solving the distribution shift in training v.s. deployment and allowing training to be scaled both safely and cheaply.…

机器人学 · 计算机科学 2023-06-29 Chris Zhang , Runsheng Guo , Wenyuan Zeng , Yuwen Xiong , Binbin Dai , Rui Hu , Mengye Ren , Raquel Urtasun

This paper describes the R package mvLSW. The package contains a suite of tools for the analysis of multivariate locally stationary wavelet (LSW) time series. Key elements include: (i) the simulation of multivariate LSW time series for a…

统计计算 · 统计学 2018-10-24 Simon A. C. Taylor , Timothy Park , Idris A. Eckley

Significant obstacles exist in scientific domains including genetics, climate modeling, and astronomy due to the management, preprocess, and training on complicated data for deep learning. Even while several large-scale solutions offer…

Modern time-domain astronomical surveys produce high throughput data streams which require tools for processing and analysis. This will be critical for programs making full use of the alert stream from the Vera Rubin Observatory (VRO),…

天体物理仪器与方法 · 物理学 2025-05-28 Jakob Nordin , Valery Brinnel , Jakob van Santen , Simeon Reusch , Marek Kowalski

The Kepler mission has provided high-accurate photometric data in a long time span for more than two hundred thousands stars, looking for planetary transits. Among the detected candidates, the planetary nature of around 15% has been…

地球与行星天体物理 · 物理学 2015-04-15 J. Lillo-Box , D. Barrado , L. Mancini , Th. Henning , P. Figueira , S. Ciceri , N. Santos

Reinforcement Learning with Verifiable Rewards (RLVR) has been shown effective in enhancing the visual reflection and reasoning capabilities of Large Multimodal Models (LMMs). However, existing datasets are predominantly derived from either…

机器学习 · 计算机科学 2026-02-20 Haoxiang Sun , Lizhen Xu , Bing Zhao , Wotao Yin , Wei Wang , Boyu Yang , Rui Wang , Hu Wei

IntLevPy provides a comprehensive description of the IntLevPy Package, a Python library designed for simulating and analyzing intermittent and L\'evy processes. The package includes functionalities for process simulation, including full…

神经与进化计算 · 计算机科学 2025-09-05 Shailendra Bhandari , Pedro Lencastre , Sergiy Denysov , Yurii Bystryk , Pedro G. Lind

We introduce a novel residual-based a posteriori error estimator for the conforming $C^1$ Virtual Element Method (VEM) applied to the buckling eigenvalue problem, incorporating nonlinear plane stress effects in both two and three…

数值分析 · 数学 2026-03-24 Franco Dassi , Andres E Rubiano , Iván Velásquez

Radar-based human activity recognition (HAR) still lacks a comprehensive simulation method. Existing software is developed based on models or motion-captured data, resulting in limited flexibility. To address this issue, a simulator that…

信号处理 · 电气工程与系统科学 2025-11-13 Weicheng Gao

Precise Gaia measurements of positions, parallaxes, and proper motions provide an opportunity to calculate 3D positions and 2D velocities (i.e. 5D phase-space) of Milky Way stars. Where available, spectroscopic radial velocity (RV)…

星系天体物理 · 物理学 2022-07-06 Ruth Angus , Adrian M. Price-Whelan , Joel C. Zinn , Megan Bedell , Yuxi , Lu , Daniel Foreman-Mackey

This paper summarizes the development of mVEM, a MATLAB software package containing efficient and easy-following codes for various virtual element methods (VEMs) published in the literature. We explain in detail the numerical implementation…

数值分析 · 数学 2022-04-05 Yue Yu

Deep Learning (DL)-based methods have proven to be effective for software vulnerability detection, with a potential for substantial productivity enhancements for detecting vulnerabilities. Current methods mainly focus on detecting single…

软件工程 · 计算机科学 2024-04-25 Xin-Cheng Wen , Xinchen Wang , Yujia Chen , Ruida Hu , David Lo , Cuiyun Gao