How the K-mean Cluster work Step 1. Begin with a decision the value of k = number of clusters Step 2. Put any initial partition that classifies the data into k clusters. You may assign the training samples randomly, or systematically as the following: Take the first k training sample as single-ELEMENT clusters Assign each of the remaining (N-k) training sample to the cluster with the nearest centroid. After each assignment, recomputed the centroid of the gaining cluster. Step 3 . Take each sample in sequence and compute its distance from the centroid of each of the clusters. If a sample is not currently in the cluster with the closest centroid, switch this sample to that cluster and update the centroid of the cluster gaining the new sample and the cluster losing the sample. Step 4 . Repeat step 3 until convergence is achieved, that is until a pass through the training sample causes no new assignments.
标签： the decision clusters Cluster
上传时间： 2013-12-21
上传用户：gxmm
This title demonstrates how to develop computer programmes which solve specific engineering problems using the finite ELEMENT method. It enables students, scientists and engineers to assemble their own computer programmes to produce numerical results to solve these problems. The first three editions of Programming the Finite ELEMENT Method established themselves as an authority in this area. This fully revised 4th edition includes completely rewritten programmes with a unique description and list of parallel versions of programmes in Fortran 90. The Fortran programmes and subroutines described in the text will be made available on the Internet via anonymous ftp, further adding to the value of this title.
标签： demonstrates engineering programmes computer
上传时间： 2014-01-12
上传用户：youke111
三维矢量有限元-矩量法电磁场分析程序。 EMAP5 is a full-wave electromagnetic field solver that combines the method of moments (MOM) with a vector finite ELEMENT method (VFEM). It employs the finite ELEMENT method (FEM) to analyze a dielectric volume, and employs the method of moments (MoM) to solve for currents on the surface of (or external to) this volume. The two methods are coupled through the fields on the dielectric surface.
标签： electromagnetic full-wave combines solver
上传时间： 2016-04-03
上传用户：cylnpy
This paper presents the key circuits of a 1MHz bandwidth, 750kb/s GMSK transmitter. The fractional-N synthesizer forming the basis of the transmitter uses a combined phasefrequency detector (PFD) and digital-to-analog converter (DAC) circuit ELEMENT to obtain >28dB high frequency noise reduction when compared to classicalfrequency synthesis.
标签： fractional-N transmitter bandwidth circuits
上传时间： 2016-04-13
上传用户：er1219
/* * The internal form of a hash table. * * The table is an array indexed by the hash of the key collisions * are resolved by hanging a linked list of hash entries off each * ELEMENT of the array. Although this is a really simple design it * isn t too bad given that pools have a low allocation overhead. */ split from apache for general usage
上传时间： 2014-01-06
上传用户：gtf1207
Parses UK Profile 1.05/1.06 Object Carousel and saves files to disk (all stored under /tmp/cache at the moment). The files are the scripts and text/image data for MHEG5, the interactive(ish) ELEMENT of digital TV. At the moment the MHEG scripts are not parsed, so to duplicate that interactive experience, speedy usage of "cat" and "xv" is recommended.
标签： Carousel Profile Parses Object
上传时间： 2014-01-14
上传用户：hgy9473
Circular Convolution of two equal-length vectors. Highlights that circular convolution in the time domain is the effectively the same as ELEMENT-by-ELEMENT multiplication in the frequency domain.
标签： equal-length Convolution convolution Highlights
上传时间： 2014-01-22
上传用户：aig85
非线性有限元程序，NONSAP is a general finite ELEMENT program for the nonlinear static and dynamic analysis of complex structures. The program is very flexible and was designed to be extended and modified by the user. In particular the program can easily be modified to use a different formulation of the equations of motions, different time integration operators and other additional options.
上传时间： 2016-11-11
上传用户：hopy
C 开发的有限元软件，界面还可以，不错，可以试试。 FElt is a free system for introductory level finite ELEMENT analysis. It is primarily intended as a teaching tool for introductory type courses in finite ELEMENTs - probably in the mechanical/structural/civil fields. In a command line environment, FElt uses an intuitive, straightforward input syntax to describe problems. It also includes a graphical user interface for workstations that allows the user to set-up, solve and post-process the problem in a single CAD-like environment.
上传时间： 2014-03-09
上传用户：zycidjl
Many CAD users dismiss schematic capture as a necessary evil in the process of creating PCB layout but we have always disputed this point of view. With PCB layout now offering automation of both component placement and track routing, getting the design into the computer can often be the most time consuming ELEMENT of the exercise. And if you use circuit simulation to develop your ideas, you are going to spend even more time working on the schematic.
标签： schematic necessary creating dismiss
上传时间： 2014-01-24
上传用户：WMC_geophy
