particle swarm optimization of highly selective digital filters over the finite precision multip
Báo cáo khoa học: "Automatic Cost Estimation for Tree Edit Distance Using Particle Swarm Optimization" doc
... sequence of edit operations changing a tree to another Consequently, the cost of an edit script is the sum of the costs of its edit operations Based on the main definition of this approach, TED is the ... (Equation 2) is updated Xbi is the best position of the particle during its past routes and Xgi is the best global position over all routes travelled by the particles of the swarm r1 and r2 are random ... Update the velocity of each particle (Vi ) 6) Update the position of each particle (Xi ) 7) For each candidate particle calculate the fitness function 8) Update the best position of each particle...
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Báo cáo hóa học: " Particle swarm optimization for pilot tones design in MIMO-OFDM systems" pot
... The parameters of particle swarm optimization that has been used for the optimization of location and (or) power of pilot tones are given as follows: swarm size = 20 for 128 subcarriers and swarm ... (discussed in the Particle swarm P optimization objective function” section) If the fitness of particle s current position is better than its previous best position, the velocity and position of particle ... employed to control the impact of the previous history of velocities on the current velocity, thereby influencing the trade off between global and local exploration abilities of the flying points...
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Báo cáo hóa học: " Research Article Camera Network Coverage Improving by Particle Swarm Optimization" docx
... the viewing coverage c of a camera is defined as the ratio of the area of the FOV of the camera to the total monitored area S as c = αR2 /S In the camera network, the observed regions of different ... as the ratio of the number of covered grids to the total numbers of grids: c= number of covered grids total number of grids (1) 2.3 Camera Number versus Network Coverage Suppose N cameras of the ... of the position During the iterations of the PSO algorithm, all the particles vary their positions and velocities to search for the best solution The optimal position found by the particles swarm...
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Báo cáo hóa học: "Research Article Particle Swarm Optimization for Adaptive Resource Allocation in Communication Networks" pptx
... of optimization End Yes No C>1 Generate a super particle Calculate the LB using the fitness function No Replace the GB with the LB Yes LB > GB Move the particle to the GB particle consisting of ... To further reduce the traffic overhead and computational complexity on a node, the particles are batched in a single super particle The super particle which is the aggregation of all the particles ... distributed circles on the nodes show the particles As the process progresses, the particles converge over the node with the highest load Based on the termination criteria explained before, the algorithm...
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Báo cáo hóa học: " Research Article A Suboptimal PTS Algorithm Based on Particle Swarm Optimization Technique for PAPR Reduction in OFDM Systems" potx
... a swarm and the individuals are called particles Resembling the social behavior of a swarm of bees to search the location with the most flowers in a field, the optimization procedure of PSO is based ... that the CCDF of the PAPR is gradually promoted upon increasing the numbers of generations due to the limited phase weighting factor As the numbers of generation are increased, the CCDF of the ... to the position and objective value of the best initial particle Step Update the velocity and position of each particle according to (7) and (8) Step Evaluate the objective values of all particles...
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Sử dụng thuật toán particle swarm optimization đánh giá độ trụ từ dữ liệu đo trên máy CMM c544
... dụng thuật toán Particle Swarm Optimization đánh giá độ trụ từ liệu đo máy CMM C544” cấp thiết có ý nghĩa khoa học thực tiễn II Mục đích đề tài - Sử dụng thuật toán Particle Swarm Optimization xác ... http://www.lrc-tnu.edu.vn 47 Chƣơng GIỚI THIỆU VỀ THOẬT TOÁN TỐI ƢU BẦY ĐÀN PARTICLE SWARM OPTIMIZATION (TỐI ƯU HÓA BẦY ĐÀN) 2.1 Tổng quan thuật toán Particle Swarm Optimization (PSO) Phương pháp tối ưu bầy đàn thuật ... nghiệm bắn bia Accuracy thấp Precision cao Accuracy cao Precision cao Accuracy trung bình, Precision thấp Accuracy thấp Precision thấp Hình 1.5 Ví dụ mục tiêu bắn Trường hợp precision cao, accuracy...
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tóm tắt luận văn thạc sĩ kỹ thuật sử DỤNG THUẬT TOÁN PARTICLE SWARM OPTIMIZATION ĐÁNH GIÁ độ TRỤ từ dữ LIỆU đo TRÊN máy CMM c544
... dụng thuật toán Particle Swarm Optimization đánh giá độ trụ từ liệu đo máy CMM C544” cấp thiết có ý nghĩa khoa học thực tiễn II Mục đích đề tài - Sử dụng thuật toán Particle Swarm Optimization xác ... điểm đo Chương GIỚI THIỆU VỀ THOẬT TOÁN TỐI ƯU BẦY ĐÀN PARTICLE SWARM OPTIMIZATION (TỐI ƯU HÓA BẦY ĐÀN) 2.1 Tổng quan thuật toán Particle Swarm Optimization (PSO) Phương pháp tối ưu bầy đàn thuật ... Algorithm, Center for Research in Mathematics (CIMAT), Department of Computer Science, y Department of Statistics [14] Marco A Montes de Oca (May 7, 2007), Particle Swarm Optimization Introduction, IRIDIA-CoDE,...
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Multi objective particle swarm optimization algorithms and applications
... advanced and efficient optimization techniques This thesis investigates the application of an efficient optimization method, known as Particle Swarm Optimization (PSO), to the field of MO optimization CHAPTER ... functions and constraints Therefore, in the absence of any clear preference on the part of the decision-maker, the ultimate goal of multi-objective optimization is to discover the entire Pareto front ... implemented in the form of a fixed-size archive to prevent the lost of good solutions due to the stochastic nature of the optimization process The size of archive can be adjusted according to the desired...
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Design and implementation of computationally efficient digital filters
... response of the prefilter, and cascade the prefilter with the “equalizer” to achieve the desired overall specifications With the help of the prefilter’s stopband attenuation, the equalizer and the overall ... that the period of HM (ejLω ) is 2π/L, and the passband replicas appear in the desired stopband Any passband of HM (z L ) in [0, π] can be used as the passband of the overall filter The purpose of ... the stopband At last, the outputs of HM a (z) and HM c (z) are added together, to form the output of the overall FRM filter Much effort has been made to reduce the complexity of FRM filters further...
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Particle swarm optimization in multi agents cooperation applications
... System Multi-level Particle Swarm Optimization Multi-level Multi-step Particle Swarm Optimization Neural Network Particle Swarm Optimization x Chapter Introduction 1.1 Overview: The main tasks Intelligent ... x of X the degree of membership of x in A (e.g X is a group of people, A the fuzzy set of old people in X) Now if X is a set of propositions then its elements may be assigned their degree of ... advice on the improvement of ILRU The ILRU receives data form the environment and IAU and outputs the fitness value of each agent The CCU will deal with the coordination of the roles of all agents...
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Optimization of design and operating parameters on the year round performance of a multi-stage evacuated solar desalination system using transient mathematical analysis
... conclusions of their work are that the multi-stage desalination of seawater is reliable, and the undesirable flow of steam that bypasses the condenser is quite harmful to the overall performance of the ... stacked one over the other The condenser surface of bottom stages acts as the evaporator surface for the stages above The system consists of two flat plate collectors connected either in series ... outlet of first collector will be inlet to the second collector and the outlet of the second collector will be inlet to the next and so on up to the Ncth collector Thus, the outlet temperature of the...
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Báo cáo hóa học: " Performance Analysis of Adaptive Volterra Filters in the Finite-Alphabet Input Case" potx
... linear, the convergence of the LMS is simply deduced from the analysis of the eigenvalues of ∆ We assume that the general Markov model (4) describing the channel behavior is stable, the algorithm ... using the proposed model of the input signal, we will analyze the convergence of the adaptive filter in the next subsection 3.2 Exact performance evaluation The main idea used to tackle (11), in the ... converge to the optimal solution, we have to excite the algorithm in all directions which spans the space Analysis of Adaptive Volterra Filters The Finite- Alphabet Input Case Proof If the alphabet...
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Báo cáo y học: "Outcomes of highly active antiretroviral therapy in the context of universal access to healthcare: the U.S. Military HIV Natural History Study" ppt
... submission The content of this publication is the sole responsibility of the authors and does not necessarily reflect the views or policies of the NIH or the Department of Health and Human Services, the ... initiating treatment over the course of twelve years (1996-2007) with an average follow-up of over years The NHS is conducted within the military medical system allowing for an evaluation of HAART response ... participation in the cohort study while receiving their primary HIV care either within or outside of the military healthcare system Aside from the advantages afforded by the medical system, there are...
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Optimization of solar thermal collector systems for the tropics
... payback period For the optimization of collector orientation, i.e., optimization of the azimuth φ and tilt angle β of the collector, the geographic location of the installation plays the most important ... R2, the resistance between the covers In fact, there may be more covers in the collectors, but the equations for the resistances between them will Page 19 Chapter Solar Thermal System be of the ... out the degree of agreement of the results of a particular simulation model to the results of a physical system By analyzing the results of the validation studies, Kreider and Kreith in their...
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optical properties of nanostructured metallic systems studied with the finite-difference time-domain method
... decide the timestepping At any point in space, the updated value of the H-field in time is dependent on the stored value of the H-field and the numerical curl of the local distribution of the E-field ... It is a long list of collaborators working in the groups of Prof T.W Ebbesen, Prof S.I Bozhevolnyi, Prof D Bäuerle, Prof J.R Kreen, Prof A Dereux and A.V Kats at the time the thesis was written ... The penetration depth of the field into the dielectric gives us a measure of the length scale over which the SPP mode is sensitive to the presence of changes in refractive index, for example the...
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Streaming of high resolution progressive meshes over the internet
... efficiency The weakness is that the size of the 17 base mesh is relatively large since the original vertices in the border of segments are kept in the base mesh Furthermore, the quality of the base ... mesh, the importance of the vertex splits decreases as the model becomes incrementally refined Thus, the contributions of the later vertex splits to the decoded quality of the mesh are less than the ... also the order, the dependency, and the importance of the data The last three factors are in turn affected by the packetization strategy Our model can estimate the effect of each factor on the decoded...
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Báo cáo hóa học: " Facile preparation of highly-dispersed cobaltsilicon mixed oxide nanosphere and its catalytic application in cyclohexane selective oxidation" ppt
... decrease the chance for them to be overoxided This might be the main reason for the evident enhancement of the selectivity for K-A oil The deeper study of the relationship between the structure of the ... most of the catalytic active sites exist on the interface of the pore Though the surface area of Co-SiO2 is much lower than that of Co-HMS (682 m2/g) [37], the absence of a long channel of inner ... that might affect the properties of the water droplet in the microemulsion and then affect the morphology of the prepared materials With the same method, highly dispersed Cu-SiO2, Ni-SiO2, and...
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Báo cáo hóa học: " Research Article A New Method for Least-Squares and Minimax Group-Delay Error Design of Allpass Variable Fractional-Delay Digital Filters" pdf
... to the initial coefficient vector a0 , we can adopt the solution in (18) by setting W(ω) = The details of iterative procedures will be described in the next section To evaluate the accuracy of the ... phase of (7) arg H e jω , p = −Nω − arg A e jω , p where p is the parameter used to adjust fractional delay and N denotes the order of the designed allpass filter The transfer function of an allpass ... updated coefficient only on the demand of variation and the values of coefficients can be stored in memory, which can save enormous computation By (6), the frequency response of the designed system is...
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