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advanced Solid-State Photonics, ASSP 2008

作者： Zhou, Chun Li, Peng Dai, Yongheng Zhang, Zhigang Institute of Quantum Electronics School of Electronics Engineering and Computer Science State Key Lab. of Advanced Optical Communication System and Networks University of Beijing 5 Yiheyuan Rd Beijing 100871 China

We demonstrated a simple all-normal-dispersion Yb-doped femtosecond fiber laser, which delivers a pulse with 8.9 nJ and 33 MHz. After the extracavity compression with a grating pair, the pulse was compressed to 210 fs... 详细信息

ISBN: (纸本)1557528500

关键词： Fiber lasers

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Comparative Study of Alternative-Pole Flux Switching and Inter-Modular Biased-Flux Permanent Magnet Motors 3

Comparative Study of Alternative-Pole Flux Switching and Int...

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3rd International Conference on Electrical Machines and Drives, ICEMD 2023

作者： Afrank, Mohammad Eikani, Alireza Farahani, Ehsan Farmahini Mirsalim, Mojtaba Amirkabir University of Technology Department of Electrical Engineering Tehran Iran University of Tehran Advanced Motion Systems Research Lab School of Electrical and Computer Engineering College of Engineering Tehran Iran Newcastle University Electrical Power Research Group School of Engineering Newcastle upon Tyne United Kingdom

ISBN: (纸本)9798350393743

This paper executes a comparative analysis between alternative-pole flux-switching and inter-modular biased-flux permanent magnet (PM) motors. Despite their close structural similarities, the former puts magnets not only between stator modules, but also close to the armature windings. However, the inter-modular PM (IMPM) motor only occupies spaces between stator modules. This type of occupation allows this structure to provide a safe operation point for PMs. Not considering the PM's recoil-phenomenon, the torque density of the IMPM motor is not as significant as the alternative-pole flux-switching PM (AP-FSPM) motor. This is because of the four-operating mode of the AP-FSPM structure which enables it to increase the torque density by utilizing the PMs in every moment of the operation. But, when the demagnetization of the AP-FSPM's PMs is taken into account, the torque density and torque per PM values of the AP-FSPM structure plummets. A complete full-load demagnetization analysis is done in order to get a better understanding of how the performance of the IMPM structure supersedes the AP-FSPM structure. 2D finite element analysis is used to extract the most important indexes of both topologies. © 2023 IEEE.

关键词： Permanent magnets

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A practical local hacking scheme on device-independent bell test based quantum randomness expansion

A practical local hacking scheme on device-independent bell ...

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Frontiers in Optics, FIO 2012

作者： Li, Junhui Yu, Quanfu Liu, Yu Guo, Hong CREAM Group State Key Lab. of Advanced Optical Communication Systems and Networks Inst. of Quantum Electronics School of Electronics Engineering and Computer Science Peking University Beijing 100871 China

Violation of Bell inequality cannot guarantee non-locality, thus an applicable hacking scheme on device-independent Bell test based quantum randomness expansion is given, together with a more secure upper bound on gen... 详细信息

ISBN: (纸本)9781557529565

关键词： Personal computing

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Hybrid malware detection approach with feedback-directed machine learning

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Science China(Information Sciences) 2020年第3期63卷 240-242页

作者： Zhetao LI Wenlin LI Fuyuan LIN Yi SUN Min YANG Yuan ZHANG Zhibo WANG Hunan Provincial Key Lab of Internet of Things and Information Security Xiangtan University The College of Information Engineering Xiangtan University Institute of Computing Technology Chinese Academy of Sciences University of Chinese Academy of Sciences School of Computer Science Fudan University Shanghai Institute of Intelligent Electronics & Systems Shanghai Institute for Advanced Communication and Data Science School of Cyber Science and Engineering Wuhan University

Dear editor,In recent years, the number of mobile malware has increased at an alarming rate. According to a report from G DATA [1], there are approximately 9000 new Android malware instances each *** malicious applica... 详细信息

关键词： Hybrid malware detection approach with feedback-directed machine learning

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A parallel manipulator for mobile manipulating UAVs

A parallel manipulator for mobile manipulating UAVs

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IEEE International Conference on Technologies for Practical Robot Applications, TePRA 2015

作者： Danko, Todd W. Chaney, Kenneth P. Oh, Paul Y. Lockheed Martin's Advanced Technology Laboratories United States Drexel University Department of Computer Engineering United States Drones and Autonomous Systems Lab University of Nevada Las Vegas United States

ISBN: (纸本)9781479987573

Manipulating objects using arms mounted to unmanned aerial vehicles (UAVs) is attractive because UAVs may access many locations that are otherwise inaccessible to traditional mobile manipulation platforms such as ground vehicles. Most previous efforts seeking to coordinate the combined manipulator-UAV system have focused on using a manipulator to extend the UAV's reach and assume that both the UAV and manipulator can reliably reach commanded goal poses. This work accepts the reality that state of the art UAV positioning precision is not of a high enough quality to reliably perform simple tasks such as grasping objects. A 6 degree of freedom parallel manipulator is used to robustly maintain precise end-effector positions despite host UAV perturbations. A description of a unique parallel manipulator that allows for very little moving mass, and is easily stowed below a quadrotor UAV is presented along with flight test results and an analytical comparison to a serial manipulator. © 2015 IEEE.

关键词： Manipulators

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A level-synchronous approach to ill-formed sentence parsing 10

A level-synchronous approach to ill-formed sentence parsing

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10th Research on Computational Linguistics International Conference, ROCLING 1997

作者： Lin, Yi-Chung Su, Keh-Yih Advanced Technology Center Computer and Communication Research Lab. Industrial Technology Research Institute Hsinchu310 Taiwan Department of Electrical Engineering National Tsing-Hua University Hsinchu300 Taiwan

In this paper, a Phrase-Level-Building (PLB) mechanism is proposed to parse ill-formed sentences. By decomposing a syntactic tree into phrase-levels, this mechanism regards the task of parsing a sentence as a task of building the phrase-levels for the sentence. During parsing, a level-synchronous scoring function is used to remove less likely phrase-levels. As a result, instead of enumerating all possible parses, the PLB parser only generates the more likely tree groups, each of which is a set of partial parses jointly deriving the input. Whenever all active phrase-levels in the search beam cannot be further reduced by any grammar rules, the process of building phrase-levels is stopped and a probabilistic scoring function is used to select the best tree group. With this approach, the best tree group is selected within a wider scope (i.e., the whole sentence), and thus generates better result. Compared with the baseline system using the stochastic context-free grammar and the "leftmost longest phrase first" heuristics (which operates in a narrow scope), the proposed PLB approach improves the precision of brackets in the tree group from 69.37% to 79.49%. The recall of brackets is also improved from 78.73% to 81.39%. © 1997 Proceedings of the 10th Research on Computational Linguistics International Conference, ROCLING 1997. All rights reserved.

关键词： Context free grammars

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Simultaneous transmission of high-speed point-to-point data and double broadcast services in a WDM-PON system with source-free ONUs

Simultaneous transmission of high-speed point-to-point data ...

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Optical Transmission, Switching, and Subsystems VI

作者： Chang, Qingjiang Huang, Mingfang Su, Yikai State Key Lab. of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China School of Electrical and Computer Engineering Georgia Institute of Technology GA 30332 United States

We propose that double broadcast services can be overlaid over high-speed point-to-point downlink data in a WDM-PON with source-free optical network units (ONUs). In the optical line terminal (OLT), a set of single-drive MachZehnder modulators (MZMs) are driven by downlink point-to-point data to generate a differential phase-shift keying (DPSK) format. The downlink DPSK signals from different wavelengths are multiplexed and then fed to a following dual-parallel MZM (DPMZM) as a double broadcast services transmitter. The broadcast service-l is an optical carrier suppression (OCS) format, while the broadcast service-2 is an inverse return-to-zero (IRZ) forma. After the transmission, at each ONU, the optical signals are separated by an optical filter. The filtered OCS signal is detected to retrieve the broadcast service-1. The DPSK/IRZ signals are split into three parts, one part is detected by an IRZ receiver to recover the broadcast service-2, the second part is detected by a DPSK receiver to retrieve the downlink data and the third part is re-modulated by the upstream amplitude shift keying (ASK). We also perform an experiment to verify the feasibility of the proposed scheme, where the power penalties of less than 1.5 dB are obtained after 25-km transmission with 1.25-Gb/s data rate. © 2008 SPIE.

关键词： Digital storage

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Kansei with behavioral patterns for human-robot interaction in ubiquitous environments

Kansei with behavioral patterns for human-robot interaction ...

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作者： Balasuriya, Janaka Chaminda Kamohara, Kouhei Marasinghe, Chandrajith Ashuboda Watanabe, Keigo Izumi, Kiyotaka Department of Advanced Systems Control Engineering Saga University 1-Honjomachi Saga 840-8502 Japan Software Engineering Lab. Department of Computer Software University of Aizu Aizu-Wakamatsu Fukushima Japan

ISBN: (纸本)9784990288013

Humans have two distinct features with compared to any other living being;unique physical nature and emotions / feelings. Anybody who studies on humans or trying to construct human like machines should consider these two vital facts. When robots are interacting with humans and other objects, they certainly have a safe distance between them and the object. But how can this distance be optimized when interacting with humans? Will there be any advantages over achieving this? Will it help to improve the condition of robots? Can it be a mere constant distance? How will the humans react? In order to 'humanize' robots, they (robots) should also have certain understating of such emotions that we, humans have. In this research project, authors are trying to 'teach' one such human understanding, commonly known as 'personal space' to autonomous mobile robots. ©ISAROB 2007.

关键词： Human robot interaction

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Cicero: Middleware for developing persuasive mobile applications 11th

Cicero: Middleware for developing persuasive mobile applicat...

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11th International Conference on Persuasive Technology, PERSUASIVE 2016

作者： D’Aloia, Antonello Lelli, Matteo Lee, Duckki Helal, Sumi Bellavista, Paolo Department of Computer Science and Engineering University of Bologna Bologna Italy Creative Innovation Center Advanced Convergence R and D Lab LG Electronics Seoul Korea Republic of Mobile and Pervasive Computing Lab University of Florida Gainesville United States

ISBN: (纸本)9783319315096

We present Cicero – a middleware solution to support developers design and implement persuasive mobile apps. Based on the Action-Behavior Model (ABM), Cicero provides developers with powerful class libraries and collaboration methodology to streamline the development of mobile persuasive apps without requiring a steep knowledge of behavior science theory or venturing into domain-specific knowledge and artifacts. Cicero guides the developers in following the ABM steps, provides APIs for cyber sense and cyber influence, and embodies the necessary model computations including measuring end-user compliance and response to influence and persuasion. Cicero also facilitates the engagement of domain experts in a clearly defined collaborative role. Here we also originally detail the design and implementation of an Android version of the Cicero middleware and we present a use case to practically exemplify how Cicero can facilitate the application developers’ work. © Springer International Publishing Switzerland 2016.

关键词： Middleware

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Catalyzing EEG signal analysis: unveiling the potential of machine learning-enabled smart K nearest neighbor outlier detection

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International Journal of Information Technology (Singapore) 2024年 1-12页

作者： Aymen, Abid Khediri, Salim El Thaljaoui, Adel Miladi, Moahmed Kachouri, Abdennaceur Computer & amp Embedded Systems Lab National Engineering School of Sfax University of Sfax Sfax Tunisia Department of Information Technology College of Computer Qassim University Buraydah Saudi Arabia Department of Computer Science Faculty of Science of Gafsa University of Gafsa Gafsa Tunisia Preparatory Institute for Engineering Studies of Gafsa Gafsa Tunisia Department of Computer Science and Information College of Science at Zulfi Majmaah University Al-Majmaah 11952 Saudi Arabia Higher Institute of Computer Science and Multimedia of Sfax University of Sfax Sfax Tunisia Advanced Fluid Dynamics Energetics and Environment Lab National Engineering School of Sfax University of Sfax Sfax Tunisia

Electroencephalogram (EEG) data are susceptible to artifacts, such as lapses in concentration or poor imagination, which can significantly impact the accuracy of disease diagnosis in e-health applications. To mitigate this issue, the use of machine learning (ML) and potentially artificial intelligence (AI) solutions to accurately identify outliers becomes crucial. Unlike many AI methods that incorporate unnecessary or redundant input variables, our study focuses on detecting anomalous values in EEG data through the K nearest neighbor (KNN) process and Euclidean distance metric. Our proposed unsupervised non-parametric algorithm, known as the smart KNN outlier detector (SKOD), eliminates the need for initial parameter configurations such as the number of neighbors (K), while achieving high performance. Evaluation of SKOD using real EEG data from 140 trials demonstrated sensitivity and specificity exceeding 60%, with nearly perfect accuracy in detecting outliers reaching close to 100%. © Bharati Vidyapeeth's Institute of computer Applications and Management 2024.

关键词： Data analysis EEG signal Healthcare Knowledge-based systems Machine learning Outlier detection

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