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A general result on precise asymptotics for linear processes of positively associated sequences 被引量:10
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作者 TAN Xi-li YANG Xiao-yun 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2008年第2期190-196,共7页
Let {εt; t ∈ Z^+} be a strictly stationary sequence of associated random variables with mean zeros, let 0〈Eε1^2〈∞ and σ^2=Eε1^2+1∑j=2^∞ Eε1εj with 0〈σ^2〈∞.{aj;j∈Z^+} is a sequence of real numbers s... Let {εt; t ∈ Z^+} be a strictly stationary sequence of associated random variables with mean zeros, let 0〈Eε1^2〈∞ and σ^2=Eε1^2+1∑j=2^∞ Eε1εj with 0〈σ^2〈∞.{aj;j∈Z^+} is a sequence of real numbers satisfying ∑j=0^∞|aj|〈∞.Define a linear process Xt=∑j=0^∞ ajεt-j,t≥1,and Sn=∑t=1^n Xt,n≥1.Assume that E|ε1|^2+δ′〈 for some δ′〉0 and μ(n)=O(n^-ρ) for some ρ〉0.This paper achieves a general law of precise asymptotics for {Sn}. 展开更多
关键词 PA sequence linear process general law precise asymptotics.
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Central limit theolrem for linear processes generated byⅡD random variables under the sub-linear expectation 被引量:1
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作者 LIU Wei ZHANG Yong 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2021年第2期243-255,共13页
In this paper,we investigate the central limit theorem and the invariance principle for linear processes generated by a new notion of independently and identically distributed(IID)random variables for sub-linear expec... In this paper,we investigate the central limit theorem and the invariance principle for linear processes generated by a new notion of independently and identically distributed(IID)random variables for sub-linear expectations initiated by Peng[19].It turns out that these theorems are natural and fairly neat extensions of the classical Kolmogorov's central limit theorem and invariance principle to the case where probability measures are no longer additive. 展开更多
关键词 central limit theorem invariance principle ⅡD random variables sub-linear expectation linear process
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The SCUSUM Estimation of Variance Change Point in Linear Process 被引量:1
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作者 ZHAO Wen-zhi XIA Zhi-ming 《Chinese Quarterly Journal of Mathematics》 CSCD 2011年第2期170-173,共4页
This paper considers the estimation problem of a variance change-point in linear process.Consistency of a SCUSUM type change-point estimator is proved and its rate of convergence is established.The mean-unknown case i... This paper considers the estimation problem of a variance change-point in linear process.Consistency of a SCUSUM type change-point estimator is proved and its rate of convergence is established.The mean-unknown case is also considered. 展开更多
关键词 variance change point linear process rate of convergence
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The Invariance Principle for Linear Processes Generated by a Negatively Associated Sequence and Its Applications 被引量:2
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作者 Chuan-rong LuZhejiang University of Finance and Economics, Hongzhou 310012. China 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2003年第4期641-646,共6页
In this paper, we obtain the invariance principle for linear processes generated by a negatively associated sequence.
关键词 linear process Negatively associated sequence Weak convergence
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ε-arithmetics for real vectors and linear processing of real vector-valued signals
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作者 Xiang-Gen Xia 《Journal of Information and Intelligence》 2023年第1期2-10,共9页
In this paper,we introduce a new concept,namelyε-arithmetics,for real vectors of any fixed dimension.The basic idea is to use vectors of rational values(called rational vectors)to approximate vectors of real values o... In this paper,we introduce a new concept,namelyε-arithmetics,for real vectors of any fixed dimension.The basic idea is to use vectors of rational values(called rational vectors)to approximate vectors of real values of the same dimension withinεrange.For rational vectors of a fixed dimension m,they can form a field that is an mth order extension Q(α)of the rational field Q whereαhas its minimal polynomial of degree m over Q.Then,the arithmetics,such as addition,subtraction,multiplication,and division,of real vectors can be defined by using that of their approximated rational vectors withinεrange.We also define complex conjugate of a real vector and then inner product and convolutions of two real vectors and two real vector sequences(signals)of finite length.With these newly defined concepts for real vectors,linear processing,such as linear filtering,ARMA modeling,and least squares fitting,can be implemented to real vectorvalued signals with real vector-valued coefficients,which will broaden the existing linear processing to scalar-valued signals. 展开更多
关键词 Arithmetics Rational vectors Real vectors Rational field Algebraic number field Field extension Algebraic number Inner product linear processing of real vector-valued signals
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Robust Fault-tolerant Iterative Learning Control for Discrete Systems via Linear Repetitive Processes Theory 被引量:2
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作者 Jian Ding Blazej Cichy +2 位作者 Krzysztof Galkowski Eric Rogers Hui-Zhong Yang 《International Journal of Automation and computing》 EI CSCD 2015年第3期254-265,共12页
This paper addresses the problem of robust iterative learning control design for a class of uncertain multiple-input multipleoutput discrete linear systems with actuator faults. The stability theory for linear repetit... This paper addresses the problem of robust iterative learning control design for a class of uncertain multiple-input multipleoutput discrete linear systems with actuator faults. The stability theory for linear repetitive processes is used to develop formulas for gain matrices design, together with convergent conditions in terms of linear matrix inequalities. An extension to deal with model uncertainty of the polytopic or norm bounded form is also developed and an illustrative example is given. 展开更多
关键词 Iterative learning control linear repetitive processes linear matrix inequality(LMI) discrete linear systems fault-tolerant cont
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Complete Moment Convergence for the Dependent Linear Processes with Random Coefficients 被引量:2
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作者 Seyed Mohammad HOSSEINI Ahmad NEZAKATI 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2019年第8期1321-1333,共13页
In this paper, we investigate the complete moment convergence for dependent linear processes with random coefficients to form Xt =∑j^∞=∞ Aj∈t-j,where {∈n, n ∈ Z} is a sequence of END stochastically dominated ran... In this paper, we investigate the complete moment convergence for dependent linear processes with random coefficients to form Xt =∑j^∞=∞ Aj∈t-j,where {∈n, n ∈ Z} is a sequence of END stochastically dominated random variables and {An,n ∈ Z} is a sequence of random varibles. As applications, the convergence rate, Marcinkiewicz-Zvgmund strong law and strong law of large numbers for this linear process are established. 展开更多
关键词 COMPLETE MOMENT convergence EXT ended negatively dependen t RANDOM VARIABLES linear processes RANDOM COEFFICIENTS
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Image Processing System for Air Classification Using Linear Discriminant Analysis 被引量:1
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作者 Atsunori Tayaoka Eriko Tayaoka +1 位作者 Tsuyoshi Hirajima Keiko Sasaki 《Computational Water, Energy, and Environmental Engineering》 2017年第2期192-204,共13页
An air classifier is used in the recycling process of covered electric wire in the recycling factories, in which the covered electric wires are crushed, sieved, and classified by the air classifier, which generates wa... An air classifier is used in the recycling process of covered electric wire in the recycling factories, in which the covered electric wires are crushed, sieved, and classified by the air classifier, which generates wastes. In these factories, operators manually adjust the air flow rate while checking the wastes discharged from the separator outlet. However, the adjustments are basically done by trial and error, and it is difficult to do them appropriately. In this study, we tried to develop the image processing system that calculates the ratio of copper (Cu) product and polyvinyl chloride (PVC) in the wastes as a substitute for the operator’s eyes. Six colors of PVC (white, gray, green, blue, black, and red) were used in the present work. An image consists of foreground and background. An image’s regions of interest are objects (Cu particles) in its foreground. However, the particles having a color similar to the background color are buried in the background. Using the difference of two color backgrounds, we separated particles and background without dependent of background. The Otsu’ thresholding was employed to choose the threshold to maximize the degree of separation of the particles and background. The ratio of Cu to PVC pixels from mixed image was calculated by linear discriminant analysis. The error of PVC pixels resulted in zero, whereas the error of Cu pixels arose to 4.19%. Comparing the numbers of Cu and PVC pixels within the contour, the minority of the object were corrected to the majority of the object. The error of Cu pixels discriminated as PVC incorrectly became zero percent through this correction. 展开更多
关键词 COVERED ELECTRIC WIRE Air Classification RECYCLING IMAGE processing linear DISCRIMINANT Analysis
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A Logical Characterization for Linear Higher-Order Processes
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作者 徐贤 龙环 《Journal of Shanghai Jiaotong university(Science)》 EI 2015年第2期185-194,共10页
Modal logic characterization in a higher-order setting is usually not a trivial task because higher-order process-passing is quite different from first-order name-passing. We study the logical characterization of high... Modal logic characterization in a higher-order setting is usually not a trivial task because higher-order process-passing is quite different from first-order name-passing. We study the logical characterization of higherorder processes constrained by linearity. Linearity respects resource-sensitiveness and does not allow processes to duplicate themselves arbitrarily. We provide a modal logic that characterizes linear higher-order processes,particularly the bisimulation called local bisimulation over them. More importantly, the logic has modalities for higher-order actions downscaled to resembling first-order ones in Hennessy-Milner logic, based on a formulation exploiting the linearity of processes. 展开更多
关键词 modal logic BISIMULATION linearITY HIGHER-ORDER process calculi
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Some Applications of Higher Moments of the Linear Gaussian White Noise Process
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作者 I. S. Iwueze C. O. Arimie +1 位作者 H. C. Iwu E. Onyemachi 《Applied Mathematics》 2017年第12期1918-1938,共21页
The Linear Gaussian white noise process is an independent and identically distributed (iid) sequence with zero mean and finite variance with distribution N (0, σ2 ) . Hence, if X1, x2, …, Xn is a realization of such... The Linear Gaussian white noise process is an independent and identically distributed (iid) sequence with zero mean and finite variance with distribution N (0, σ2 ) . Hence, if X1, x2, …, Xn is a realization of such an iid sequence, this paper studies in detail the covariance structure of X1d, X2d, …, Xnd, d=1, 2, …. By this study, it is shown that: 1) all powers of a Linear Gaussian White Noise Process are iid but, not normally distributed and 2) the higher moments (variance and kurtosis) of Xtd, d=2, 3, … can be used to distinguish between the Linear Gaussian white noise process and other processes with similar covariance structure. 展开更多
关键词 Stochastic process linear Gaussian WHITE Noise process COVARIANCE Structure Stationarity TEST for WHITE Noise process TEST for NORMALITY
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DATA PROCESSING ON LINEARIZATION OF HOT-WIRE ANEMOMETER
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作者 Li Sufen(Department of Power Engineering ,NUAA 29 Yudao Street,Nanjing 210016,P.R.China) 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1994年第2期224-228,共5页
A method of data processing to determine the coefficients of linearization equations for 1050 anemometer (produced by Thermo-Systems Inc. -TSI, USA) with the sensors made of domestic hot wire using the program preferr... A method of data processing to determine the coefficients of linearization equations for 1050 anemometer (produced by Thermo-Systems Inc. -TSI, USA) with the sensors made of domestic hot wire using the program preferred in this Paper is described. By calculation and test, it is indicated that the error resulting from this method is about 0. 5% of the full scale and less than TSl's. By using this method we can set up the calibration curve according to the measurement range and the diameter of the hot wire at a certain accuracy. 展开更多
关键词 measurements data processING linearIZATION aero dynamic test HOT-WIRE ANEMOMETERS
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THE MONITORING FOR PHYSICAL DEVELOPING PROCESS WITH A LINEAR CCD
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作者 Jing Kun XU Ping CHEN +1 位作者 Li ZHANG De Shui ZHENG(Institute of Photographic Chemistry, Academy of Sciences, Beijing. 100101) 《Chinese Chemical Letters》 SCIE CAS CSCD 1996年第4期361-364,共4页
In this work, we used a linear CCD to detect the whole physical developing process of silver diffusion transfer reversal process in photographic chemistry. The influence of the ingredient of the working solution was s... In this work, we used a linear CCD to detect the whole physical developing process of silver diffusion transfer reversal process in photographic chemistry. The influence of the ingredient of the working solution was studied. 展开更多
关键词 THE MONITORING FOR PHYSICAL DEVELOPING process WITH A linear CCD
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Evaluating Traffic Congestion Using the Traffic Occupancy and Speed Distribution Relationship: An Application of Bayesian Dirichlet Process Mixtures of Generalized Linear Model 被引量:1
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作者 Emmanuel Kidando Ren Moses +1 位作者 Eren E. Ozguven Thobias Sando 《Journal of Transportation Technologies》 2017年第3期318-335,共18页
Accurate classification and prediction of future traffic conditions are essential for developing effective strategies for congestion mitigation on the highway systems. Speed distribution is one of the traffic stream p... Accurate classification and prediction of future traffic conditions are essential for developing effective strategies for congestion mitigation on the highway systems. Speed distribution is one of the traffic stream parameters, which has been used to quantify the traffic conditions. Previous studies have shown that multi-modal probability distribution of speeds gives excellent results when simultaneously evaluating congested and free-flow traffic conditions. However, most of these previous analytical studies do not incorporate the influencing factors in characterizing these conditions. This study evaluates the impact of traffic occupancy on the multi-state speed distribution using the Bayesian Dirichlet Process Mixtures of Generalized Linear Models (DPM-GLM). Further, the study estimates the speed cut-point values of traffic states, which separate them into homogeneous groups using Bayesian change-point detection (BCD) technique. The study used 2015 archived one-year traffic data collected on Florida’s Interstate 295 freeway corridor. Information criteria results revealed three traffic states, which were identified as free-flow, transitional flow condition (congestion onset/offset), and the congested condition. The findings of the DPM-GLM indicated that in all estimated states, the traffic speed decreases when traffic occupancy increases. Comparison of the influence of traffic occupancy between traffic states showed that traffic occupancy has more impact on the free-flow and the congested state than on the transitional flow condition. With respect to estimating the threshold speed value, the results of the BCD model revealed promising findings in characterizing levels of traffic congestion. 展开更多
关键词 TRAFFIC Congestion Multistate SPEED DISTRIBUTION TRAFFIC OCCUPANCY Dirichlet process Mixtures of Generalized linear Model BAYESIAN CHANGE-POINT Detection
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Decomposition of Supercritical Linear-Fractional Branching Processes
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作者 Serik Sagitov Altynay Shaimerdenova 《Applied Mathematics》 2013年第2期352-359,共8页
It is well known that a supercritical single-type Bienayme-Galton-Watson process can be viewed as a decomposable branching process formed by two subtypes of particles: those having infinite line of descent and those w... It is well known that a supercritical single-type Bienayme-Galton-Watson process can be viewed as a decomposable branching process formed by two subtypes of particles: those having infinite line of descent and those who have finite number of descendants. In this paper we analyze such a decomposition for the linear-fractional Bienayme-Galton-Watson processes with countably many types. We find explicit expressions for the main characteristics of the reproduction laws for so-called skeleton and doomed particles. 展开更多
关键词 Harris-Sevastyanov Transformation Dual REPRODUCTION Law Branching process with Countably MANY Types Multivariate linear-Fractional Distribution Bienaymé-Galton-Watson process Conditioned Branching process
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Application of Dynamic Linear Detecting Method in Data Processing of the Portable Blood Sugar Analyzer
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作者 Xiaohao Wang Ran Liu +2 位作者 Fei Tang Yangchun Yu Zhaoying Zhou 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2006年第A03期80-82,共3页
In this paper,a dynamic linear detecting method,that the non-linear coefficient NL% was led and the non-linearity of data were estimated continuously and dynamically and determined when NL% exceeded reference value (... In this paper,a dynamic linear detecting method,that the non-linear coefficient NL% was led and the non-linearity of data were estimated continuously and dynamically and determined when NL% exceeded reference value (5%),was used for data processing and could solve the problem caused by the phenomenon of substrate depleting occurred following the redox reaction in portable blood sugar analyzer.By contrast to the conventional end-point method,the dynamic linear detecting method is based on multipoint data collecting.Experiments of measuring the calibration glucose solution with 8 various concentrations from 50 mg/dl to 400 mg/dl were carried out with the analyzer developed by our group.The linear regression curve,whose correlation for the data was 0.9995 and the residual was 2.8080,were obtained.The obtained correlation,residual, and the computation workload are all fit for the portable blood sugar analyzer. 展开更多
关键词 data processing portable blood sugar analyzer dynamic linear detecting method
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STRONG APPROXIMATION FOR MOVING AVERAGE PROCESSES UNDER DEPENDENCE ASSUMPTIONS 被引量:2
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作者 林正炎 李德柜 《Acta Mathematica Scientia》 SCIE CSCD 2008年第1期217-224,共8页
Let {Xt,t ≥ 1} be a moving average process defined by Xt = ∑^∞ k=0 αkξt-k, where {αk,k ≥ 0} is a sequence of real numbers and {ξt,-∞ 〈 t 〈 ∞} is a doubly infinite sequence of strictly stationary dependen... Let {Xt,t ≥ 1} be a moving average process defined by Xt = ∑^∞ k=0 αkξt-k, where {αk,k ≥ 0} is a sequence of real numbers and {ξt,-∞ 〈 t 〈 ∞} is a doubly infinite sequence of strictly stationary dependent random variables. Under the conditions of {αk, k ≥ 0} which entail that {Xt, t ≥ 1} is either a long memory process or a linear process, the strong approximation of {Xt, t ≥ 1} to a Gaussian process is studied. Finally, the results are applied to obtain the strong approximation of a long memory process to a fractional Brownian motion and the laws of the iterated logarithm for moving average processes. 展开更多
关键词 Strong approximation long memory process linear process fractional Brownian motion the law of the iterated logarithm
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Processing Modflow模型在预测地面沉降中的应用 被引量:12
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作者 阚京梁 罗立红 《铁道工程学报》 EI 北大核心 2010年第2期27-31,共5页
研究目的:针对开采地下水引起的区域地面沉降对线性工程的影响问题,以京津城际铁路为例,采用地下水三维渗流与地面沉降耦合模型计算软件—Processing Modflow,选择沿线地面沉降较严重区段,建立区域地下水流场与地面沉降的耦合模型,运用... 研究目的:针对开采地下水引起的区域地面沉降对线性工程的影响问题,以京津城际铁路为例,采用地下水三维渗流与地面沉降耦合模型计算软件—Processing Modflow,选择沿线地面沉降较严重区段,建立区域地下水流场与地面沉降的耦合模型,运用参数修正后的模型,进行地面沉降预测。研究结论:利用实测地面沉降值对模型进行验证,沉降中心位置及沉降量的模拟结果与实测结果基本吻合;设计不同的地下水开采方案,利用模型预测地面沉降,结果表明:合理压采地下水可以降低地面沉降量及沉降坡度,减缓地面沉降的不均匀性。 展开更多
关键词 processING MODFLOW 区域地面沉降 线性工程 耦合模型 沉降预测
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A dynamic programming algorithm for scheduling problems on earliness award and tardiness penalty with time-dependent processing time 被引量:1
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作者 余英 孙世杰 何龙敏 《Journal of Shanghai University(English Edition)》 CAS 2008年第3期204-209,共6页
In this paper, a single-machine scheduling model with a given common due date is considered. Job processing time is a linear decreasing function of its starting time. The objective function is to minimize the total we... In this paper, a single-machine scheduling model with a given common due date is considered. Job processing time is a linear decreasing function of its starting time. The objective function is to minimize the total weighted earliness award and tardiness penalty. Our aim is to find an optimal schedule so as to minimize the objective function. As the problem is NP-hard, some properties and polynomial time solvable cases of this problem are given. A dynamic programming algorithm for the general case of the problem is provided. 展开更多
关键词 scheduling SINGLE-MACHINE linear decreasing processing time EARLINESS TARDINESS
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Early detection of sudden cardiac death by using classical linear techniques and time-frequency methods on electrocardiogram signals 被引量:2
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作者 Elias Ebrahimzadeh Mohammad Pooyan 《Journal of Biomedical Science and Engineering》 2011年第11期699-706,共8页
Early detection of sudden cardiac death may be used for surviving the life of cardiac patients. In this paper we have investigated an algorithm to detect and predict sudden cardiac death, by processing of heart rate v... Early detection of sudden cardiac death may be used for surviving the life of cardiac patients. In this paper we have investigated an algorithm to detect and predict sudden cardiac death, by processing of heart rate variability signal through the classical and time-frequency methods. At first, one minute of ECG signals, just before the cardiac death event are extracted and used to compute heart rate variability (HRV) signal. Five features in time domain and four features in frequency domain are extracted from the HRV signal and used as classical linear features. Then the Wigner Ville transform is applied to the HRV signal, and 11 extra features in the time-frequency (TF) domain are obtained. In order to improve the performance of classification, the principal component analysis (PCA) is applied to the obtained features vector. Finally a neural network classifier is applied to the reduced features. The obtained results show that the TF method can classify normal and SCD subjects, more efficiently than the classical methods. A MIT-BIH ECG database was used to evaluate the proposed method. The proposed method was implemented using MLP classifier and had 74.36% and 99.16% correct detection rate (accuracy) for classical features and TF method, respectively. Also, the accuracy of the KNN classifier were 73.87% and 96.04%. 展开更多
关键词 SUDDEN CARDIAC DEATH Heart Rate Variability TIME-FREQUENCY Transform ELECTROCARDIOGRAM Signal linear processing
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Explicit solution of diffusion master equation under the action of linear resonance force via the thermal entangled state representation 被引量:3
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作者 姚飞 王继锁 徐天牛 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第7期98-101,共4页
Using the well-behaved features of the thermal entangled state representation, we solve the diffusion master equation under the action of a linear resonance force, and then obtain the infinitive operator-sum represent... Using the well-behaved features of the thermal entangled state representation, we solve the diffusion master equation under the action of a linear resonance force, and then obtain the infinitive operator-sum representation of the density operator. This approach may also be effective for treating other master equations. Moreover, we find that the initial pure coherent state evolves into a mixed thermal state after passing through the diffusion process under the action of the linear resonance force. 展开更多
关键词 diffusion process linear resonance force thermal state representation infinitive operator-sum representation
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