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With a growing demand for high-quality fabrication, the interest in real-time process and defect monitoring of laser powder bed fusion (LPBF) has increased, leading manufacturers to incorporate a variety of online sensing methods including…

This chapter considers the computational and statistical aspects of learning linear thresholds in presence of noise. When there is no noise, several algorithms exist that efficiently learn near-optimal linear thresholds using a small amount…

机器学习 · 计算机科学 2020-11-16 Maria-Florina Balcan , Nika Haghtalab

We have designed and implemented a straightforward method to deterministically measure the temperature of the selected segment of a cold atom ensemble, and we have also developed an upgrade in the form of nondestructive thermometry. The…

原子物理 · 物理学 2020-08-19 Xin Wang , Yuan Sun , Hua-Dong Cheng , Jin-Yin Wan , Yan-Ling Meng , Ling Xiao , Liang Liu

Noisy labeled data represent a rich source of information that often are easily accessible and cheap to obtain, but label noise might also have many negative consequences if not accounted for. How to fully utilize noisy labels has been…

Position and frequency switching techniques used for the removal of the bandpass dependence of radio astronomical spectra are presented and discussed in detail. Both methods are widely used, although the frequency dependence of the system…

天体物理仪器与方法 · 物理学 2015-06-04 B. Winkel , A. Kraus , U. Bach

Diffusion models have achieved remarkable success in imaging inverse problems owing to their powerful generative capabilities. However, existing approaches typically rely on models trained for specific degradation types, limiting their…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Zhen Wang , Hongyi Liu , Zhihui Wei

We discuss the speed-error-heat triangle and related problems with rapidly increasing energy dissipation and error rate during miniaturization. These and the independently growing need of unconditional data security have provoked…

综合物理 · 物理学 2008-08-20 Laszlo B. Kish

Quantum systems, in general, output data that cannot be simulated efficiently by a classical computer, and hence is useful for solving certain mathematical problems and simulating quantum many-body systems. This also implies, unfortunately,…

量子物理 · 物理学 2017-10-04 Keisuke Fujii , Masahito Hayashi

Regression methods based in Machine Learning Algorithms (MLA) have become an important tool for data analysis in many different disciplines. In this work, we use MLA in an astrophysical context; our goal is to measure the mean longitudinal…

太阳与恒星天体物理 · 物理学 2018-11-07 J. C. Ramirez-Velez , C. Yañez-Marquez , J. P. Cordova-Barbosa

The accurate interpretation of experiments with matter at extreme densities and pressures is a notoriously difficult challenge. In a recent work [T.~Dornheim et al., Nature Comm. (in print), arXiv:2206.12805], we have introduced a formally…

Label noise is emerging as a pressing issue in sound event classification. This arises as we move towards larger datasets that are difficult to annotate manually, but it is even more severe if datasets are collected automatically from…

声音 · 计算机科学 2019-10-29 Eduardo Fonseca , Frederic Font , Xavier Serra

This paper proposes a nonlinear estimator for the robust reconstruction of process and sensor faults for a class of uncertain nonlinear systems. The proposed fault estimation method augments the system dynamics with an ultra-local (in time)…

系统与控制 · 电气工程与系统科学 2024-06-11 Farhad Ghanipoor , Carlos Murguia , Peyman Mohajerin Esfahani , Nathan van de Wouw

We study and analyze the fundamental aspects of noise propagation in recurrent as well as deep, multi-layer networks. The main focus of our study are neural networks in analogue hardware, yet the methodology provides insight for networks in…

新兴技术 · 计算机科学 2020-06-29 Nadezhda Semenova , Xavier Porte , Louis Andreoli , Maxime Jacquot , Laurent Larger , Daniel Brunner

Data-driven software engineering processes, such as vulnerability prediction heavily rely on the quality of the data used. In this paper, we observe that it is infeasible to obtain a noise-free security defect dataset in practice. Despite…

软件工程 · 计算机科学 2022-04-04 Roland Croft , M. Ali Babar , Huaming Chen

Neutrinos offer a unique window to the distant, high-energy universe. Several next-generation instruments are being designed and proposed to characterize the flux of TeV--EeV neutrinos. The projected physics reach of the detectors is often…

天体物理仪器与方法 · 物理学 2022-09-07 Jakob van Santen , Brian A. Clark , Rob Halliday , Steffen Hallmann , Anna Nelles

Absorption spectroscopy is traditionally used to determine the average gas temperature and species concentration along the laser line-of-sight by measuring the magnitude of two or more absorption transitions with different temperature…

应用物理 · 物理学 2020-12-01 Nathan A Malarich , Gregory B Rieker

We present an automated vision-based system for defect detection and classification of laser power meter sensor coatings. Our approach addresses the critical challenge of identifying coating defects such as thermal damage and scratches that…

计算机视觉与模式识别 · 计算机科学 2025-09-26 Dongqi Zheng , Wenjin Fu , Guangzong Chen

In industrial systems, certain process variables that need to be monitored for detecting faults are often difficult or impossible to measure. Soft sensor techniques are widely used to estimate such difficult-to-measure process variables…

信号处理 · 电气工程与系统科学 2019-02-26 Shun Takeuchi , Takuya Nishino , Takahiro Saito , Isamu Watanabe

Nonlinear heat transfer can be exploited to reveal novel transport phenomena and thus enhance peo-ple's ability to manipulate heat flux at will. However, there hasn't been a mature discipline called nonlinear thermotics like its counterpart…

应用物理 · 物理学 2022-10-04 Gaole Dai

The use of femtosecond laser pulses to impulsively excite thermal and mechanical transients in matter has led, in the last years, to the development of picosecond acoustics. Recently, the pump-probe approach has been applied to…

介观与纳米尺度物理 · 物理学 2010-04-02 C. Giannetti , F. Banfi , D. Nardi , G. Ferrini , F. Parmigiani