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检索条件"任意字段=Conference on Advanced Wavefront Control: Methods, Devices, and Applications V"

共 143 条记录，以下是1-10 订阅

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An Efficient DDoS Attack Detection in SDN using Multi-Feature Selection and Ensemble Learning 4

An Efficient DDoS Attack Detection in SDN using Multi-Featur...

引用

4th International conference on Evolutionary Computing and Mobile Sustainable Networks, ICECMSN 2024

作者： Kachavimath, Amit v. Narayan, D.G. Department of Master of Computer Applications KLE Technological University Hubballi580031 India School of Computer Science and Engineering KLE Technological University Hubballi580031 India

Software-defined networking (SDN) has significantly enhanced network agility by decoupling network control from hardware devices. This architectural shift exposes SDN infrastructures to increased risks from Distributed Denial of Service (DDoS) attacks, which can severely disrupt network services and render them unavailable to legitimate users. Despite the existence of various techniques for detecting specific types of DDoS attacks, there remains a need for more comprehensive work capable of accurately identifying multiple attack categories. We have addressed the gap by proposing a robust DDoS attack detection method in the SDN. We utilize advanced machine learning (ML) algorithms to analyze the InSDN dataset, employing advanced feature extraction techniques to improve detection accuracy and efficiency. Three feature extraction methods, Se-lectKBest, ANOvA F-value scores, and feature importance scores from RandomForest Classifier, were used to select the best ten features from 81. This feature selection, combined with ensemble learning, achieved an accuracy of 99.9%. The Receiver Operating Characteristic (ROC) curve, confusion matrix, and K-fold cross-validation were used to evaluate the performance of the proposed model. © 2025 The Authors. Published by Elsevier B.v.

关键词： Adversarial machine learning

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Advancing Object Discovery: Unveiling the Power of YOLO in Computer vision applications 6th

Advancing Object Discovery: Unveiling the Power of YOLO in C...

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6th International conference on Intelligent Communication, control and devices, ICICCD 2024

作者： vijayalakshmi, A. Ebenezer Abishek, B. Arul Stephen, C. Mohith, K. Sri Niranjan Raja, C.A. Department of Electronics and Communication Engineering Vels Institute of Science Technology and Advanced Studies Chennai India Department of Electronics and Communication Engineering KCG College of Technology Chennai India

ISBN: (纸本)9789819783281

The practical implementations and technological advances of the YOLO method in computer vision for object detection are examined in this article. Santosh Divvala and Joseph Redmon’s YOLO artificial intelligence system can accurately and quickly detect objects in videos and images, eliminating the need for network iterations. Instead of using traditional methods, YOLO directly generates bounding boxes and class probabilities for each object, optimising the procedure. After reading this, the process is clearer. This study examines YOLO’s effectiveness in various situations. This technology has many applications in industrial automation, AR/vR, autonomous vehicles, healthcare, and retail. This article examines YOLO model training and data preparation. COCO datasets are used in this study. The architectural components of YOLO versions 7 and 8 are also examined. The findings show that YOLO v8 is highly accurate in identifying a wide range of objects in real time. This study shows YOLO’s revolutionary potential as object detection software for Bv applications, highlighting its outstanding features. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Adversarial machine learning

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Proceedings of SPIE - advanced wavefront control: methods, devices, and applications v

Proceedings of SPIE - Advanced Wavefront Control: Methods, D...

引用

advanced wavefront control: methods, devices, and applications v

ISBN: (纸本)9780819468598

The proceedings contain 23 papers. The topics discussed include: image-based wavefront senorless adaptive optics;phase-diverse adaptive optics for future telescopes;optical spatial heterodyne interferometric fourier transform technique (OSHIFT) and a resulting interferometer;high-speed closed-loop dual deformable-mirror phase-diversity testbed;automatic calibration of a phase diversity wavefront sensing and control testbed;characterization and closed-loop demonstration novel electro-static membrane mirror using COTS membranes;actuator fault detection via electrical impedance testing;atmospheric turbulence generator for adaptive optical systems testing;open-loop performance of a MEMS reflective wavefront sensor;and numerical analysis of hybrid adaptive optics system for correcting beacon anisoplanatism and thermal blooming.

关键词： Adaptive optics

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Exploring Traffic Signal control: A Comprehensive Survey on Reinforcement Learning Techniques

Exploring Traffic Signal Control: A Comprehensive Survey on ...

引用

Industrial Electronics: Developments & applications (ICIDeA), IEEE International conference on-

作者： K. ThamaraiSelvi Asha Rani Bohra vishal v Pawan Sai Sunkara Balaji Sunku Bhavsar NityaJignesh Department of Information Science and Engineering New Horizon College of Engineering Bangalore India Department of Computer Science and Engineering New Horizon College of Engineering Bangalore India

ISBN: (数字)9798331533205

ISBN: (纸本)9798331533212

Urban traffic congestion at intersections poses a significant challenge, leading to inefficiencies in traffic flow and increased wait times. Traditional fixed-timer traffic signal systems fail to adapt to fluctuating traffic volumes, exacerbating congestion during peak hours and leading to unnecessary delays during off-peak hours. Reinforcement Learning (RL) offers a promising solution by enabling traffic signal control systems to dynamically adjust signal timings based on real-time data. This paper surveys the current state of traffic signal control systems, highlighting the advantages of RL-based methods and presenting future directions for improvement, including the integration of Internet of Things (IoT) devices, advanced RL algorithms, and enhanced pedestrian detection systems. Through a comparative analysis of existing methods, we propose future enhancements that can further optimize urban traffic management.

关键词： Surveys Adaptation models Pedestrians Smart cities Biological system modeling Reinforcement learning Real-time systems Internet of Things Sustainable development Traffic congestion

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MCAO for astronomical and near-to-ground applications

MCAO for astronomical and near-to-ground applications

引用

conference on advanced wavefront control - methods, devices and applications II

作者： Michau, v Fusco, T Conan, JM Robert, C Le Roux, B Rousset, G Off Natl Etud & Rech Aerosp F-92322 Chatillon France

ISBN: (纸本)0819454915

MCAO is a very promising technique to increase the AO corrected field of view. By now, this method was mainly studied for astronomical purposes. In case of horizontal or slant path propagation, the effects of anisoplanatism and scintillation are quite stronger than for astronomy:, MCAO seems specially well-suited in this context. Therefore, many authors propose to use MCAO for laser beam control. Imaging is another potential applications: we have studied the theoretical performance of MCAO for extended source observation. We will present the results of this study.

关键词： Adaptive Optics Multi Conjugate Adaptive Optics control wavefront sensing

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A low-cost compact metric adaptive optics system

A low-cost compact metric adaptive optics system

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conference on advanced wavefront control: methods, devices, and applications v

作者： Mansell, Justin D. Henderson, Brian Wiesner, Brennen Praus, Robert Coy, Steve LLC Active Opt Syst Albuquerque NM 87106 USA

ISBN: (纸本)9780819468598

The application of adaptive optics has been hindered by the cost, size, and complexity of the systems. We describe here progress we have made toward creating low-cost compact turn-key adaptive optics systems. We describe our new low-cost deformable mirror technology developed using polymer membranes, the associated USB interface drive electronics, and different ways that this technology can be configured into a low-cost compact adaptive optics system. We also present results of a parametric study of the stochastic parallel gradient descent (SPGD) control algorithm.

关键词： low-cost inexpensive compact adaptive optics polymer deformable mirror metric adaptive optics wavefront sensorless adaptive optics stochastic parallel gradient descent SPGD

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Wavelet-based wavefront control

Wavelet-based wavefront control

引用

conference on advanced wavefront control - methods, devices and applications II

作者： Jones, KJ Rice Univ Rice Space Inst Houston TX 77005 USA

ISBN: (纸本)0819454915

The objective of Adaptive Optics is to achieve dynamic correction of severely aberrated systems. This effort will develop a novel adaptive optics approach based on wavelets. Distortions are imprinted on the wavefront in the form of a spatially varying phase field. A wavelet-based method is being developed to subtract out distortions to yield a fully corrected image. This method will be initially developed for laser systems but aims eventually to be used for adaptive optical systems for ground-based telescopes.

关键词： adaptive optics wavefront correction interferometric signal wavelet processing Morlet transform

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Coherence-gated wavefront sensing using a virtual Shack-Hartmann sensor

Coherence-gated wavefront sensing using a virtual Shack-Hart...

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conference on advanced wavefront control - methods, devices, and applications Iv

作者： Rueckel, Markus Denk, Winfried Max Planck Inst Med Res Jahnstr 29 D-69120 Heidelberg Germany

ISBN: (纸本)081946385X

For fast wavefront correction based on coherence-gated wavefront sensing (CGWS) photon and speckle noise determine how well the wavefront can be corrected and, thus, how much resolution, signal and contrast of multi-photon microscopy can be improved. We investigate numerically the performance of a virtual Shack-Hartmann sensor (vSHS), which can be used to reconstruct the wavefront in CGWS, taking into account photon noise and speckle noise.

关键词： wavefront sensing Shack-Hartmann sensor interferometer adaptive optics

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Atmospheric turbulence generator for adaptive optical systems testing

Atmospheric turbulence generator for adaptive optical system...

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conference on advanced wavefront control: methods, devices, and applications v

作者： Wilcox, Christopher C. Martinez, Ty Santiago, Freddie Andrews, Jonathan R. Restaino, Sergio R. Teare, Scott W. Payne, Don USN Res Lab Remote Sensing Div Code 7216 Washington DC 20375 USA New Mexico Inst Min & Technol Dept Elect Engn Socorro NM USA Narrascape Albuquerque NM USA

ISBN: (纸本)9780819468598

Many electro optical devices are now available for compensating atmospheric distortions in optical systems. To support the characterization of these devices in a consistent fashion a common testbed that physically simulates these atmospheric aberrations is required. This paper reports on a system that realizes seeing conditions ranging from very poor to excellent and feeds these wavefronts to the compensation device under test. The testbed provides quantitative characterization of the system under test and evaluates residual wavefront error.

关键词： Atmospheric turbulence Monochromatic aberrations wavefronts Spatial light modulators Adaptive optics Atmospheric optics Atmospheric physics control systems Point spread functions Optical testing

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Automatic calibration of a phase-diversity wavefront sensing and control testbed - art. no. 671106

Automatic calibration of a phase-diversity wavefront sensing...

引用

conference on advanced wavefront control: methods, devices, and applications v

作者： Georges, James A., III Gleichman, Kurt Jonik, Julie Liskow, Dean Lapprich, Harold Naik, vipul Parker, Stuart Paxman, Rick Warmuth, Matt Wilson, Aaron Zaugg, Tom Gen Dynam Adv Informat Syst Michigan Res & Dev Ct Ypsilanti MI 48197 USA

ISBN: (纸本)9780819468598

This paper will report on efforts to automatically calibrate in situ a phase-diversity (PD) wavefront sensing and control (WFS&C) system, the results of which are demonstrated on the General Dynamics advanced Information System's (GDAIS') QuickStar testbed(1), a dual deformable-mirror (DM) system which operates at 100Hz sampling rate. The iterative automatic calibration (AutoCal) process includes both coarse and fine calibration modes, initial closed-loop flattening of the commercial-off-the-shelf (COTS) DMs, estimation of the system's static wavefront - including DM print-through, determination of PD-derived actuator influence functions, formulating the resulting system matrix and the resulting for-ward-model parameters. Analyses of the system after the calibration routines shows low-order WFS accuracy of similar to 0.005 lambda RMS and closed-loop residual wavefront measurement of similar to 0.002 lambda. All of these results were accomplished with a software package that takes on the order of one hour to operate.

关键词： phase diversity image plane wavefront sensing and control automated calibration

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