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5th International Conference on Dependability in Sensor, Cloud, and Big Data Systems and Applications, DependSys 2019

作者： Zhang, Hekai Gong, Jibing Teng, Zhiyong Wang, Dan Wang, Hongfei Du, Linfeng Bhuiyan, Zakirul Alam School of Information Science and Engineering Yanshan University Qinhuangdao066004 China The Key Lab for Computer Virtual Technology and System Integration Yanshan University Qinhuangdao066004 China School of Computer Science and Engineering Beihang University Beijing100191 China Shenyuan Honors College Beihang University Beijing100191 China State Key Lab of Mathematical Engineering and Advanced Computing Wuxi214000 China Department of Computer and Information Sciences Fordham University New York United States

ISBN: (纸本)9789811513039

User-based attribute information, such as age and gender, is usually considered as user privacy information. It is difficult for enterprises to obtain user-based privacy attribute information. However, user-based privacy attribute information has a wide range of applications in personalized services, user behavior analysis and other aspects. Although many scholars have made achievements in user attribute prediction and other related fields, there are still two main problems that impede further improvement on the accuracy of classification: (1) Traditional machine learning classification merely takes each object as a single individual, ignoring the relationship between them;(2) At present, the popular Heterogeneous Path-Mine Information Network only considers whether the user has a relationship with the attributes of other nodes, rather than the degree of correlation of the attributes. It employs a linear regression model to fit the weight of meta-path, which is highly sensitive to outliers. To solve the above two problems, this paper advances the HetPathMine model and puts forward TPathMine model. With applying the number of clicks of attributes under each node to express the user’s emotional preference information, optimizations of the solution of meta-path weight are also presented. Based on meta-path in heterogeneous information networks, the new model integrates all relationships among objects into isomorphic relationships of classified objects. Matrix is used to realize the knowledge dissemination of category knowledge among isomorphic objects. The experimental results show that: (1) the prediction of user attributes based on heterogeneous information networks can achieve higher accuracy than traditional machine learning classification methods;(2) TPathMine model based on the number of clicks is more accurate in classifying users of different age groups, and the weight of each meta-path is consistent with human intuition or the real world situation. © 2019, Spr

关键词： Forecasting

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An efficient partial link monitoring scheme for inter-domain routing under dynamic traffic scenarios

An efficient partial link monitoring scheme for inter-domain...

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作者： Zhang, Pengfei Jin, Yaohui Sun, Weiqiang Guo, Wei Hu, Weisheng Ghani, N. State Key Lab. of Advanced Communication Systems and Networks Shanghai Jiao Tong University China Electrical and Computer Engineering Department University of New Mexico United States

We investigate link-state advertising in multi-domain networks with dynamic traffic. A novel triggering scheme is proposed to monitor a subset of domain links, and thereby achieve a balance between salability and accu... 详细信息

ISBN: (纸本)9781457702136

关键词： Optical fibers

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Micropatterned piezoelectric films induced by modulated corona field for weak signal detection

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Chemical engineering Journal 2025年 517卷

作者： Fu Lv Chenghang Yu Bing Liu Jiamin Lin Zijian Hong Yongjun Wu Zhaohui Ren Qilong Zhang Shurong Dong Jikui Luo Juan Li Yuhui Huang School of Materials Science and Engineering Cyrus Tang Center for Sensor Materials and Applications Innovation Center of Yangtze Delta Institute of Fundamental and Transdisciplinary Research Zhejiang University Hangzhou Zhejiang 310058 China Nanhu Brain-computer Interface Institute Hangzhou Zhejiang 311100 China School of Engineering Hangzhou City University Hangzhou Zhejiang 310015 China College of Electronic Information and Engineering Hangzhou Dianzi University Hangzhou Zhejiang 310018 China Zhejiang Key Laboratory of Advanced Solid State Energy Storage Technology and Applications Taizhou Institute of Zhejiang University Taizhou Zhejiang 318000 China College of Information Science and Electronic Engineering Key Lab of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang Zhejiang University Hangzhou Zhejiang 310027 China College of Materials and Science Engineering Zhejiang University of Technology Hangzhou Zhejiang 310014 China

Enhancing the inherent piezoelectricity and introducing innovative structural designs are the two fundamental strategies for enhancing the pressure sensitivity of P(VDF-TrFE)-based sensors. In this study, we propose a scalable and cost-effective manufacturing approach that utilizes a modulated corona field to create micropatterns on the surface of P(VDF-TrFE) films, and enhance their piezoelectric properties during the annealing and recrystallization process. The micropatterned P(VDF-TrFE) films exhibit a distinctive “wavy” microstructure and possess ultrahigh piezoelectric properties (d 33 ∼ 35.6 pC/N), resulting in excellent sensitivity (∼477.94 mV/kPa). To unravel the underlying mechanism responsible for this superior performance, we employ finite element modeling and phase-field simulations. Our findings reveal that the modulated corona field generates an equipotential surface with a characteristic “wavy” distribution and promotes the creation of nucleation sites for the polar β phase in P(VDF-TrFE) films. A real-time monitoring system is further exploited with the obtained micropatterned P(VDF-TrFE) films for detecting radial artery pulse signals. The results obtained from this work hold great promise for the development of highly sensitive sensors, with wide-ranging applications in healthcare and environmental monitoring.

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Learning to grasp with parental scaffolding

Learning to grasp with parental scaffolding

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2011 11th IEEE-RAS International Conference on Humanoid Robots, HUMANOIDS 2011

作者： Ugur, Emre Celikkanat, Hande Şahin, Erol Nagai, Yukie Oztop, Erhan Advanced ICT National Institute of Information and Communication Technology Kyoto Japan Cognitive Mechanisms Labs. Advanced Telecommunications Institute International Kyoto Japan KOVAN Research Lab. Department of Computer Engineering Middle East Technical University Ankara Turkey Graduate School of Engineering Osaka University Osaka Japan School of Engineering Science Osaka University Osaka Japan Computer Science Dept. Ozyegin University Istanbul Turkey

ISBN: (纸本)9781612848679

Parental scaffolding is an important mechanism utilized by infants during their development. Infants, for example, pay stronger attention to the features of objects highlighted by parents and learn the way of manipulating an object while being supported by parents. In this paper, a robot with the basic ability of reaching for an object, closing fingers and lifting its hand lacks knowledge of which parts of the object affords grasping, and in which hand orientation should the object be grasped. During reach and grasp attempts, the movement of the robot hand is modified by the human caregiver's physical interaction to enable successful grasping. The object regions that the robot fingers contact first are detected and stored as potential graspable object regions along with the trajectory of the hand. In the experiments, we showed that although the human caregiver did not directly show the graspable regions, the robot was able to find regions such as handles of the mugs after its action execution was partially guided by the human. Later, this experience was used to find graspable regions of never seen objects. At the end, the robot was able to grasp objects based on the position of the graspable part and stored action execution trajectories. © 2011 IEEE.

关键词： Scaffolds

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A new approach for service-oriented architecture

A new approach for service-oriented architecture

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ITI International Conference on Information and Communications Technology (ICICT)

作者： A. Talaei-Khoei A.H. Sheriffian M.K. Akbari J.F. Verdom Advanced IT Development Lab Department of Computer Engineering and IT Amirkabir University of Technology슠 Iran

Service providing as an important activity in service-oriented architecture, which is the most popular architecture for applications of distributed environments needs a change to obtain better efficiency, so in this paper we present neighbor providing and extended neighbor providing (ENP) methods, which are apply the neighborhood computing in traditional methods. As evaluation of these methods we use the efficiency, scalability, and reliability metrics obtained from the results of omnet++ simulation and we measured the users' satisfactions with their opinions about the quality of implemented ENP system

关键词： Service oriented architecture Application software computer architecture Distributed computing Scalability Computational modeling Java Web sites Surges Information technology

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Visuohaptic discrimination of 3D gross shape

Visuohaptic discrimination of 3D gross shape

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作者： Kim, Kwangtaek Barni, Mauro Prattichizzo, Domenico Tan, Hong Z. Haptic Interface Research Lab. School of Electrical and Computer Engineering Purdue University West Lafayette IN United States Department of Information Engineering University of Siena Siena Italy Department of Advanced Robotics Istituto Italiano di Technologia Genova Italy

Human sensitivity to 3D gross shape changes was measured for the visual and haptic sensory channels. Three volume-invariant affine transformations were defined: compressing, shearing and stretching. Participants discriminated a reference 3D object (cube or sphere) from its deformed shape under three experimental conditions: visual only (on a computer monitor), haptic only (through a point-contact force-feedback device) and visuohaptic simulations. The results indicate that vision is more sensitive to gross shape changes than point-based touch, and that vision dominated in the visuohaptic condition. In the haptic alone condition, thresholds were higher for shearing and stretching than for compressing. Thresholds were otherwise similar for the three transformations in the vision only or visuohaptic conditions. These trends were similar for the two shapes tested. A second experiment, conducted under similar conditions but preventing participants from manipulating object orientations, verified that the main conclusion of our research still holds when visual inspection can rely only on a single perspective view of the object. Our earlier studies on 3D visuohaptic watermarking showed that the haptic channel is more sensitive to surface texture and roughness changes than vision. The thresholds from the present and our earlier studies can potentially be used as the upper limits for selecting watermark strengths in order to ensure watermark imperceptibility in a 3D visuohaptic watermarking system. © 2012 BRILL.

关键词： Watermarking

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WACA: Wearable-assisted continuous authentication

arXiv

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arXiv 2018年

作者： Acar, Abbas Aksu, Hidayet Selcuk Uluagac, A. Akkaya, Kemal Advanced Wireless and Security Lab Department of Electrical and Computer Engineering Florida International University

One-time login process in conventional authentication systems does not guarantee that the identified user is the actual user throughout the session. However, it is necessary to re-verify the user identity periodically throughout a login session without reducing the user convenience. Continuous authentication can address this issue. However, existing methods are either not reliable or not usable. In this paper, we introduce a usable and reliable method called Wearable-Assisted Continuous Authentication (WACA). WACA relies on the sensor-based keystroke dynamics, where the authentication data is acquired through the built-in sensors of a wearable (e.g., smartwatch) while the user is typing. We implemented the WACA framework and evaluated its performance on real devices with real users. The empirical evaluation of WACA reveals that WACA is feasible and its error rate is as low as 1% with 30 seconds of processing time and 2 − 3% for 20 seconds. The computational overhead is minimal. Furthermore, we tested WACA against different attack scenarios. WACA is capable of identifying insider threats with very high accuracy (99.2%) and also robust against powerful adversaries such as imitation and statistical attackers. Copyright © 2018, The Authors. All rights reserved.

关键词： Wearable sensors

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Throughput optimization for interleaved repeater-inserted interconnects in VLSI design

Throughput optimization for interleaved repeater-inserted in...

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IEEE International Nanoelectronics Conference (INEC)

作者： Mahmoud Zangeneh Nasser Masoumi Advanced VLSI Lab School of Electrical and Computer Engineering University of Tehran Tehran Iran

This paper presents analytical modeling and closed-form derivations for the throughput of interleaved repeater-inserted resistive-capacitive global interconnects in VLSI design. We have used interleaved buffer insertion technique which has been well-accepted to be dominated in minimization of crosstalk effects in current nanometer technologies. Moreover, we have used the simple yet-realistic MOS model, namely the ¿-power law, to consider the input transition time in the throughput expression. Precise HSPICE simulations have been used to verify the analytical throughput derivations.

关键词： Throughput Design optimization Repeaters Very large scale integration Delay Capacitance Analytical models Integrated circuit interconnections Wires Crosstalk

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PASSIVE 3D-PRINTED FULLY ELASTIC PILL FOR SAMPLING OF GUT MICROBIOME

PASSIVE 3D-PRINTED FULLY ELASTIC PILL FOR SAMPLING OF GUT MI...

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2022 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2022

作者： Del-Rio-Ruiz, Ruben Asci, Cihan Owyeung, Rachel Widmer, Giovanni Sonkusale, Sameer Nano Lab. Advanced Technology Laboratory Tufts University United States Department of Electrical and Computer Engineering Tufts University United States Cummings School of Veterinary Medicine Tufts University United States

ISBN: (纸本)9781940470047

Sampling of gut microbiome upstream of the colon is challenging and expensive. Research has shown that ingestible devices are effective in sampling microbiome, however existing designs are complex and suffer from high levels of contamination from untargeted regions. This paper aims to present a simple sampling design concept with a self-closing mechanism relying on swellable polyacrylate beads that close the inlet to prevent contamination. The pill is fully elastic, lightweight, biocompatible, battery-less realized using stereo-lithography based 3D-printer. Herein, it is believed that such an ingestible device will increase the understanding of spatial diversity of gut microbiome and its response to medical conditions and treatments, using a non-invasive and simple technique. © 2022 TRF.

关键词： Actuators

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Field weakening operation of a high torque density five phase permanent magnet motor drive

Field weakening operation of a high torque density five phas...

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2005 IEEE International Conference on Electric Machines and Drives

作者： Parsa, Leila Kim, Namhun Toliyat, Hamid A. IEEE Department of Electrical Computer and Systems Engineering Rensselaer Polytechnic Institute Troy NY 12180-3590 Advanced Electric Machines and Power Electronics Lab. Department of Electrical Engineering Texas A and M University College Station TX 77843-3128

ISBN: (纸本)0780389875

This paper investigates the field weakening operation of a five-phase permanent magnet motor. The proposed motor has concentrated windings such that the produced back-EMF is almost trapezoidal. The motor is supplied with the combined sinusoidal plus third harmonic of currents. This motor, while generating the same average torque as an equivalent permanent magnet brushless dc motor, overcomes its disadvantages. It is shown that torque producing and flux producing components of current for this motor can be decoupled by using multiple reference frame transformation. Therefore, Vector control is easily applicable to the motor. Field weakening algorithm is derived and implemented. This motor benefits from high torque density of a BLDC motor below the rated speed and controllability of PMSM above the rated speed and during the field weakening region. Simulation and experimental results are provided to prove the validity of the superior performance of this drive © 2005 IEEE.

关键词： Permanent magnets

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