On Machine Learning Approaches for Automated Log Management [PDF]
Journal of Universal Computer Science, 2019 We address several problems in intelligent log management of distributed cloud computing applications and their machine learning solutions. Those problems concern various tasks on characterizing data center states from logs, as well as from related or ...
Ashot Harutyunyan +4 more
doaj +3 more sources
Communication with face masks during the COVID-19 pandemic for adults with hearing loss
Cognitive Research, 2022 Face masks have become common protective measures in community and workplace environments to help reduce the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Face masks can make it difficult to hear and understand speech,
Brenda T. Poon, Lorienne M. Jenstad
doaj +1 more source
Binary Amplitude Reflection Gratings for X-ray Shearing and Hartmann Wavefront Sensors
Sensors, 2021 New, high-coherent-flux X-ray beamlines at synchrotron and free-electron laser light sources rely on wavefront sensors to achieve and maintain optimal alignment under dynamic operating conditions. This includes feedback to adaptive X-ray optics.
Kenneth A. Goldberg +2 more
doaj +1 more source
Компьютерная оптика, 2021 In the geometrical optics approximation, we consider a method for calculating a refractive optical element with two freeform surfaces, which transforms an incident beam with a plane wave-front into an output beam with a required wavefront and generating ...
L.L. Doskolovich +3 more
doaj +1 more source
Method for arbitrary phase transformation by a slab based on transformation optics and the principle of equal optical path [PDF]
Journal of the European Optical Society-Rapid Publications, 2012 The optical path lengths travelled by rays across a wavefront essentially determine the resulting phase front irrespective of the shape of a medium according to the principle of equal optical path.
Ke Y., Shu W., Luo H., Wen S., Fan D.
doaj +1 more source
One-Dimensional High-Resolution Wavefront Sensor Enabled by Subwavelength Compound Gratings
Photonics, 2023 Angle sensors are widely used for wavefront measurements, which is attributed to their integration and robustness. Currently, commercial sensors are available with pixel sizes in the order of wavelengths.
Yunlong Meng +6 more
doaj +1 more source
Calibrating a high-resolution wavefront corrector with a static focal-plane camera [PDF]
, 2013 We present a method to calibrate a high-resolution wavefront-correcting device with a single, static camera, located in the focal plane; no moving of any component is needed.
Codona, Johanan +5 more
core +5 more sources
Turbulent parameters at different heights in the atmosphere. Shack–Hartmann wavefront sensor data
Solar-Terrestrial Physics, 2022 The paper presents the results of studies of wavefront distortions at different heights in the atmosphere. We have used measurement wavefront data to determine optical turbulence parameters along the line of sight of the Large Solar Vacuum Telescope ...
Shikhovtsev A. Y. +5 more
doaj +1 more source
Study of a MEMS-based Shack-Hartmann wavefront sensor with adjustable pupil sampling for astronomical adaptive optics [PDF]
, 2008 We introduce a Shack-Hartmann wavefront sensor for adaptive optics that enables dynamic control of the spatial sampling of an incoming wavefront using a segmented mirror microelectrical mechanical systems (MEMS) device.
Baranec, Christoph, Dekany, Richard
core +1 more source
Compressive Wavefront Sensing with Weak Values [PDF]
, 2014 We demonstrate a wavefront sensor based on the compressive sensing, single-pixel camera. Using a high-resolution spatial light modulator (SLM) as a variable waveplate, we weakly couple an optical field's transverse-position and polarization degrees of ...
Howell, John C. +2 more
core +3 more sources