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Predicting drop coalescence based on process parameters is crucial for experiment design in chemical engineering. However, predictive models can suffer from the lack of training data and more importantly, the label imbalance problem. In…

计算工程、金融与科学 · 计算机科学 2023-05-02 Kewei Zhu , Sibo Cheng , Nina Kovalchuk , Mark Simmons , Yi-Ke Guo , Omar K. Matar , Rossella Arcucci

Deep learning can be used to drastically decrease the processing time of parameter estimation for coalescing binaries of compact objects including black holes and neutron stars detected in gravitational waves (GWs). As a first step, we…

天体物理仪器与方法 · 物理学 2022-01-28 Alistair McLeod , Daniel Jacobs , Chayan Chatterjee , Linqing Wen , Fiona Panther

We explore machine learning methods to detect gravitational waves (GW) from binary black hole (BBH) mergers using deep learning (DL) algorithms. The DL networks are trained with gravitational waveforms obtained from BBH mergers with…

Gravitational waves (GW) from chirping binary black holes (BBHs) provide unique opportunities to test general relativity (GR) in the strong-field regime. However, testing GR can be challenging when incomplete physical modeling of the…

广义相对论与量子宇宙学 · 物理学 2025-07-09 Anuj Mishra , N. V. Krishnendu , Apratim Ganguly

Parameter estimation on gravitational wave signals from compact binary coalescence (CBC) requires the evaluation of computationally intensive waveform models, typically the bottleneck in the analysis. This cost will increase further as low…

广义相对论与量子宇宙学 · 物理学 2017-05-22 Serena Vinciguerra , John Veitch , Ilya Mandel

Gravitational wave detection requires an in-depth understanding of the physical properties of gravitational wave signals, and the noise from which they are extracted. Understanding the statistical properties of noise is a complex endeavor,…

广义相对论与量子宇宙学 · 物理学 2019-12-05 Wei Wei , E. A. Huerta

Gravitational waves (GWs) from stellar-mass compact binary coalescences (CBCs) are expected to be strongly lensed when encountering large agglomerations of matter, such as galaxies or clusters. Searches for strongly lensed GWs have been…

广义相对论与量子宇宙学 · 物理学 2023-06-08 Srashti Goyal , Shasvath Kapadia , Jean-Rene Cudell , Alvin K. Y. Li , Juno C. L. Chan

In this paper we apply to gravitational waves from non-spinning binary systems a recently intro- duced frequentist methodology to calculate analytically the error for a maximum likelihood estimate (MLE) of physical parameters. While…

广义相对论与量子宇宙学 · 物理学 2011-02-02 Salvatore Vitale , Michele Zanolin

It has been shown that time delay of strong gravitational lensing is not only an effective cosmological probe to constrain the Hubble constant, the matter density and the curvature of the universe but also useful for breaking the degeneracy…

宇宙学与河外天体物理 · 物理学 2019-05-15 Bin Liu , Zhengxiang Li , Zong-Hong Zhu

Free energy biasing methods have proven to be powerful tools to accelerate the simulation of important conformational changes of molecules by modifying the sampling measure. However, most of these methods rely on the prior knowledge of…

生物物理 · 物理学 2021-10-20 Zineb Belkacemi , Paraskevi Gkeka , Tony Lelièvre , Gabriel Stoltz

Gravitational-wave data from advanced-era interferometric detectors consists of background Gaussian noise, frequent transient artefacts, and rare astrophysical signals. Multiple search algorithms exist to detect the signals from compact…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Gregory Ashton , Ann-Kristin Malz , Nicolo Colombo

With the rapid advancement and increased use of deep learning models in image identification, security becomes a major concern to their deployment in safety-critical systems. Since the accuracy and robustness of deep learning models are…

机器学习 · 计算机科学 2021-12-10 Dvij Kalaria , Aritra Hazra , Partha Pratim Chakrabarti

Microlensing imprints by typical stellar mass lenses on gravitational waves are challenging to identify in the LIGO and Virgo frequency band because such effects are weak. However, stellar mass lenses are generally embedded in lens galaxies…

高能天体物理现象 · 物理学 2023-12-01 Eungwang Seo , Otto A. Hannuksela , Tjonnie G. F. Li

We present a Bayesian framework that enhances the identification of strongly lensed gravitational waves (GWs) by incorporating informative positional priors from the Euclid galaxy lens catalog. The core of our method introduces a two-step…

宇宙学与河外天体物理 · 物理学 2026-04-07 Tonghua Liu , Kai Liao

Recent advances have shown that GP priors, or their finite realisations, can be encoded using deep generative models such as variational autoencoders (VAEs). These learned generators can serve as drop-in replacements for the original priors…

The coalescences of massive black hole binaries are one of the main targets of space-based gravitational wave observatories. Such gravitational wave sources are expected to be accompanied by electromagnetic emissions. Low latency detection…

天体物理仪器与方法 · 物理学 2023-04-18 Wen-Hong Ruan , He Wang , Chang Liu , Zong-Kuan Guo

We present the result of the first deep learning-based search for the signature of microlensing in gravitational waves. This search seeks the signature induced by lenses with masses between $10^3M_\odot$--$10^5M_\odot$ from spectrograms of…

广义相对论与量子宇宙学 · 物理学 2022-10-25 Kyungmin Kim , Joongoo Lee , Otto A. Hannuksela , Tjonnie G. F. Li

It is expected that gravitational waves, similar to electromagnetic waves, can be gravitationally lensed by intervening matters, producing multiple instances of the same signal arriving at different times from different apparent luminosity…

广义相对论与量子宇宙学 · 物理学 2023-06-14 Rico K. L. Lo , Ignacio Magana Hernandez

Variational autoencoders (VAEs) are widely used deep generative models capable of learning unsupervised latent representations of data. Such representations are often difficult to interpret or control. We consider the problem of…

机器学习 · 计算机科学 2018-12-18 Jack Klys , Jake Snell , Richard Zemel

Accurate extractions of the detected gravitational wave (GW) signal waveforms are essential to validate a detection and to probe the astrophysics behind the sources producing the GWs. This however could be difficult in realistic scenarios…

广义相对论与量子宇宙学 · 物理学 2021-09-20 Chayan Chatterjee , Linqing Wen , Foivos Diakogiannis , Kevin Vinsen