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Genetic Tabu Search for the Multi-Objective Knapsack Problem

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Tsinghua Science and Technology 2003年第1期8卷 8-13页

作者： Vincent Barichard Jin-kao hao LERIA Faculty of Sciences University of AngersLERIA Faculty of Sciences University of Angers 2 Boulevard Lavoisier 49045 Angers Cedex 01 France 2 Boulevard Lavoisier 49045 Angers Cedex 01 France

We introduce a hybrid algorithm for the 01 multidimensional multi-objective knapsack problem. This algorithm, called GTS MOKP, combines a genetic procedure and a tabu search operator. The algorithm is evaluated on 9 ... 详细信息

关键词： hybrid algorithm genetic tabu search search space

Voice Response Questionnaire System for Speaker Recognition Using Biometric Authentication Interface

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Intelligent Automation & Soft Computing 2023年第1期35卷 913-924页

作者： Chang-Yi kao hao-En Chueh Soochow University Taipei City100TaiwanChina Chung Yuan Christian University Taoyuan City32023TaiwanChina

The use of voice to perform biometric authentication is an importanttechnological development,because it is a non-invasive identification methodand does not require special hardware,so it is less likely to arouse user *** study tries to apply the voice recognition technology to the speech-driveninteractive voice response questionnaire system aiming to upgrade the traditionalspeech system to an intelligent voice response questionnaire network so that thenew device may offer enterprises more precise data for customer relationshipmanagement(CRM).The intelligence-type voice response gadget is becominga new mobile channel at the current time,with functions of the questionnaireto be built in for the convenience of collecting information on local preferencesthat can be used for localized promotion and *** of this study propose a framework using voice recognition and intelligent analysis models to identify target customers through voice messages gathered in the voice response questionnaire system;that is,transforming the traditional speech system to anintelligent voice *** speaker recognition system discussed hereemploys volume as the acoustic feature in endpoint detection as the computationload is usually low in this *** correct two types of errors found in the endpoint detection practice because of ambient noise,this study suggests ways toimprove the ***,to reach high accuracy,this study follows a dynamictime warping(DTW)based method to gain speaker ***,it isdevoted to avoiding any errors in endpoint detection by filtering noise from voicesignals before getting recognition and deleting any test utterances that might negatively affect the results of *** is hoped that by so doing the recognitionrate is *** to the experimental results,the method proposed inthis research has a high recognition rate,whether it is on personal-level or industrial-level computers,and can reach the pract

关键词： Biometric authentication customer relationship management speaker recognition questionnaire

Experiments on Channel Evolution Caused by Check-dam Failure

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Journal of Mountain Science 2012年第2期9卷 175-184页

作者： Wen-Hsiao TSENG Hsiao-Wen WANG Shih-Chieh CHOU Yu-Lin kao Chjeng-lun Shieh Department of Hydraulic and Ocean Engineering National Cheng Kung University

A 10 m long,0.2 m wide flume was employed to simulate the channel bed evolution of check-dam *** experiment longitudinal profiles,the gradient of channel bed,head-cutting propagation distance and deposition length were compared with the theoretical solution derived from a sediment transport diffusion *** contrast with the theoretical solution,two different gradients were obtained upstream and downstream of the *** theoretical solution provides a good description of the changes upstream of the check-dam. The ratio of clear water depth to sediment moving layer thickness in the experiment was analyzed and showed that high concentration sediment laden flow was taken in the incipient of check-dam failure,which may be the reason why the experiment result was slightly different from the theoretical solution in the downstream of check-dam.

关键词： Check-dam failure Diffusion equation Debris flow

SOINN-Based Abnormal Trajectory Detection for Efficient Video Condensation

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Computer Systems Science & Engineering 2022年第8期42卷 451-463页

作者： Chin-Shyurng Fahn Chang-Yi kao Meng-Luen Wu hao-En Chueh National Taiwan University of Science and Technology Taipei City106335Taiwan Soochow University Taipei City100Taiwan Tamkang University New Taipei City251301Taiwan Chung Yuan Christian University Taoyuan City32023Taiwan

With the evolution of video surveillance systems,the requirement of video storage grows rapidly;in addition,safe guards and forensic officers spend a great deal of time observing surveillance videos to find abnormal *** most of the scene in the surveillance video are redundant and contains no information needs attention,we propose a video condensation method to summarize the abnormal events in the video by rearranging the moving trajectory and sort them by the degree of *** goal is to improve the condensation rate to reduce more storage size,and increase the accuracy in abnormal *** the trajectory feature is the key to both goals,in this paper,a new method for feature extraction of moving object trajectory is proposed,and we use the SOINN(Self-Organizing Incremental Neural Network)method to accomplish a high accuracy abnormal *** the results,our method is able to shirk the video size to 10%storage size of the original video,and achieves 95%accuracy of abnormal event detection,which shows our method is useful and applicable to the surveillance industry.

关键词： Surveillance systems video condensation SOINN moving trajectory abnormal detection

Induction of Volatile Organic Compounds of Lycopersicon esculentum Mill. and Its Resistance to Botrytis cinerea Pers. by Burdock Oligosaccharide

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Journal of Integrative Plant Biology 2006年第5期48卷 550-557页

作者： Pei-Qing He Li Tian kao-Shan Chen Lin-Hua hao Guang-You Li First Institute of Oceanography State Oceanic Administration Qingdao 266061 China Qingdao University of Science and Technology Qingdao 266061 China Shool of Life Sciences Shandong University Jinan 250100 China

In the present study, we investigated the induction of volatile organic compounds （VOCs） of Lycoperslcon esculentum Mill. and its resistance to Botrytis cinerea Pers. by burdock oligosaccharlde. The disease severity of L. esculentum was evaluated 48 h after treatment with 0.6% burdock oligosaccharlde, followed by inoculation with a spore suspension of B. cinerea. The formation of O2＇, the activity of lipoxygenases （LOX）, peroxidase （POD）, cataiase （CAT）, and superoxide dismutase （SOD）, and the quantity and quallty of changes In VOCs were determined a period of time after treatment with 0.6% burdock ollgosaccharide. The results demonstrated that the disease index in treated plants was decreased by 42.5% compared with control 96 h after Inoculation. The production of O2＇ reached a maximum 6 h after treatment （1.36-fold compared with control）. There was an increase in LOX, POD, CAT and SOD activity in response to burdock oligosaccharide treatment and the enzymes showed different trends in the time-course of induction. At 120 h after treatment, （E）-2-hexenal was increased by 92% compared with control, whereas methyl salicylate showed a gradual Increase with induction period. Previous results had demonstrated that chitosan elicitor enhanced the production VOCs of L. esculentum and decreased plant susceptibility towards B. clnerea. Together, these findings suggest that increasing the production of VOCs in response to burrdock oligosaccharide may be an important mechanism for L. esculentumin its defense against pathogens, in addition, burrdock oligosaccharlde may act as a potent elicitor of resistance to disease in L. esculentum.

关键词： burdock oligosaccharide induction Lycopersicon esculentum resistance volatile organic compounds.

A Guaranteed Cost Approach to Dynamic Output Feedback Control for Neutral-Type Markovian Jumping Stochastic Systems

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Journal of Systems Science & Complexity 2021年第4期34卷 1487-1500页

作者： LI Yanbo kao Binghua XIE Jing kao Yonggui School of Information and Statistics Guangxi University of Finance and EconomicsNanning 530003China Department of Mathematics Harbin Institute of Technology(Weihai)Weihai 264209China School of Information and Control Engineering Qingdao University of TechnologyQingdao 266520China

This paper is devoted to investigating the dynamic output feedback(DOF)control problem of Markovian jump neutral-type stochastic systems with a guaranteed cost *** of the state and measurement equations contain time ***-dependent DOF controllers are first designed such that the closed-loop system is asymptotically stable in mean-square and an adequate performance level of this system is ***,sufficient conditions for the solvability of this problem are derived in the form of linear matrix inequalities(LMIs).A numerical example is presented to reveal the effectiveness of our findings.

关键词： Guaranteed cost control linear matrix inequality Markovian jump neutral stochastic systems output feedback control time delay

Effects of Crop Development on the Emission of Volatiles in Leaves of Lycopersicon esculentum and Its Inhibitory Activity to Botrytis cinerea and Fusarium oxysporum

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Journal of Integrative Plant Biology 2008年第1期50卷 84-91页

作者： Peng-Ying Zhang kao-Shan Chen Pei-Qing He Sheng-hao Liu Wan-Feng Jiang College of Life Sciences Shandong University Jinan 250100 China Key Laboratory of Marine Bioactive Substances First Institute of Oceanography State Oceanic Administration Qingdao 266061 China Qingdao Quafity Supervision and Inspection Center for Shopping Basket Commodity Qingdao 266003 China

Volatiles emitted from the leaves of Lycopersicon esculentum at the two-, ten-leaf and anthesis periods were collected by a gas absorbing method and analyzed by gas chromatography （GC）-mass spectrometry. In total, 33 compounds of volaUles emitted from three developmental stage plants were separated and identified, and quantitatively analyzed by the internal standard addition method. All of the samples of volatile were found to be rich in monoterpenes and sesquiterpenes.β-phellandrene and caryophyllene predominated in the volatiles of the leaves of plants at the two- and ten-leaf stages. Furthermore, （E）-2-hexenal were the dominant components in the volatiles emitted from anthesis plants. The results of volatiles analyzed show that the compositions varied depending on the developmental stages. The volatiles emitted from crushed tomato leaves of plants at the anthesis stage had the most strongly inhibitory activity against the spore germination and hyphal growth of Botrytis cinerea and Fusarium oxysporum, followed by ten- and two-leaf plants. However, the activity of volatiles, emitted from the leaves of plants at the two-leaf stage, in inhibiting F. oxysporum was greater than B. cinerea.

关键词： development inhibitroy activity Lycopersicon esculentum volatiles.

Asymptotic multistability and local S-asymptotic ω-periodicity for the nonautonomous fractional-order neural networks with impulses

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Science China(Information Sciences) 2021年第1期64卷 175-187页

作者： Yonggui kao Hui LI Department of Mathematics Harbin Institute of Technology at Weihai

This paper focuses on the investigation of asymptotic multistability and on local S-asymptoticω-periodicity for nonautonomous fractional-order neural networks(FONNs) with impulses. Several criteria on the existence, uniqueness, and invariant sets of nonautonomous FONNs with impulses are derived by constructing convergent sequences and comparison principles, respectively. In addition, using the Lyapunov direct method, some novel conditions of boundedness and local asymptotic stability of the FONNs discussed are obtained. Also, the sufficient conditions for local S-asymptotic ω-periodicities of the system are presented. Finally, a discussion using two examples verifies the validity of our findings, which imply that global asymptotic stability is a special case of asymptotic multistability.

关键词： fractional-order neural networks local S-asymptotic $\omega$-periodicity asymptotic multistability impulse nonautonomous

Realizing large strain at low electric field in Pb(Zr,Ti)O_(3)-based piezoelectric ceramics via engineering lattice distortion and domain structure

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Journal of Advanced Ceramics 2024年第9期13卷 1409-1421页

作者： Denghui Jiang Feng Luo kao Pei Hongyu Yang Linzhuang Xing Yangxi Yan Mo Zhao Zhimin Li Yue hao School of Advanced Materials and Nanotechnology Xidian UniversityXi’an 710126China Academy of Advanced Interdisciplinary Research Xidian UniversityXi’an 710071China State Key Laboratory of Intense Pulsed Radiation Simulation and Effect(Northwest Institute of Nuclear Technology) Xi’an 710024China National Key Laboratory of Wide Bandgap Semiconductor Devices and Integrated Technology Xidian UniversityXi’an 710071China

Pb(Zr,Ti)O_(3)-based ceramics are the mainstream materials for commercial multilayer piezoelectric ceramic actuators,but to date,large strains at low electric fields have not been well ***,0.95Pb(Zr_(0.56)Ti_(0.44))O_(3)–0.05(Bi_(0.5)Na_(0.5))TiO_(3–x)BaZrO_(3)(PZT–BNT–xBZ)ceramics with efficient ferroelectric domain wall motion were designed and realized by reducing lattice distortion and changing the domain *** is found that the introduction of BaZrO_(3)(BZ)weakens the tetragonal phase distortion of PZT,contributing to a reduction in the mechanical stress that impedes the migration of domain ***,the domain structures could be modified by adjusting the BZ content,where short and broad striped domains are constructed with high amplitude characteristics to enhance the domain wall motion.A large strain of 0.39%is accordingly achieved at an electric field as low as 40 kV/cm for the sample with x=0.03,accompanied by excellent temperature stability over the temperature range of 30–210℃.This study delves into the synergistic effects of reducing lattice distortion and changing domain structure on domain wall motion and provides an effective strategy to improve the strain of PZT-based piezoelectric ceramics.

关键词： PZT ceramic strain ferroelectric domain lattice distortion