Search - entropy data

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[matlab] CHE DL : 1: 计算化合物热容，应用NASA提供的热力学参数计算不同物质的热容，焓，熵数据-Compounds calculated heat capacity, the application of NASA provided thermodynamic parameters of different substances, heat capacity, enthalpy, entropy data
Date : 2025-12-26 Size : 1kb User : Xin
[matlab] GongLvPuGuJi DL : 0: 用Matlab编写的功率谱估计，输入数据是100年太阳黑子活动记录，用周期图法、最大熵值估计（AR法及Burg法），画出信号功率谱进而算出太阳黑子活动周期。-Matlab prepared using power spectrum estimation, input data is 100-year record of sunspot activity, using periodogram method, the estimated value of maximum entropy (AR Law and Burg method), draw the signal power spectrum and then calculate the sunspot activity cycle.
Date : 2025-12-26 Size : 5kb User : ldh
[matlab] ApEn DL : 0: To estimate approximate entropy for EEG signal or time series data
Date : 2025-12-26 Size : 6kb User : murugavel.asm
[matlab] huffmam_coding DL : 0: In computer science and information theory, Huffman coding is an entropy encoding algorithm used for lossless data compression
Date : 2025-12-26 Size : 4kb User : hazhiriq200
[matlab] C4_5.m DL : 0: his algorithm was proposed by Quinlan (1993). The C4.5 algorithm generates a classification-decision tree for the given data-set by recursive partitioning of data. The decision is grown using Depth-first strategy. The algorithm considers all the possible tests that can split the data set and selects a test that gives the best information gain. For each discrete attribute, one test with outcomes as many as the number of distinct values of the attribute is considered. For each continuous attribute, binary tests involving every distinct values of the attribute are considered. In order to gather the entropy gain of all these binary tests efficiently, the training data set belonging to the node in consideration is sorted for the values of the continuous attribute and the entropy gains of the binary cut based on each distinct values are calculated in one scan of the sorted data. This process is repeated for each continuous attributes.
Date : 2025-12-26 Size : 2kb User : rajesh
[matlab] huffmn DL : 0: In computer science and information theory, Huffman coding is an entropy encoding algorithm used for lossless data compression. The term refers to the use of a variable-length code table for encoding a source symbol (such as a character in a file) where the variable-length code table has been derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol. It was developed by David A. Huffman while he was a Ph.D. student at MIT, and published in the 1952 paper "A Method for the Construction of Minimum-Redundancy Codes".
Date : 2025-12-26 Size : 1kb User : vishnu
[matlab] DATA-ASSOCIATION-BASED-CE-METHODS DL : 0: 基于cross entropy最优方法对phd跟踪结果进行目标关联-Based on cross entropy method for phd optimal target tracking results associated
Date : 2025-12-26 Size : 482kb User : 吴
[matlab] ls-svdls DL : 0: 最小二乘法（又称最小平方法）是一种数学优化技术。它通过最小化误差的平方和寻找数据的最佳函数匹配。利用最小二乘法可以简便地求得未知的数据，并使得这些求得的数据与实际数据之间误差的平方和为最小。最小二乘法还可用于曲线拟合。其他一些优化问题也可通过最小化能量或最大化熵用最小二乘法来表达。 -Least-squares method (also known as least squares) is a mathematical optimization techniques. It does this by minimizing the square error of the data and find the best match function. The least square method can easily obtain the unknown data, and makes these data and the actual data obtained between the square and the smallest error. Least-squares curve fitting method can also be used. Other optimization problems can be maximized by minimizing the energy or entropy of the least square method to express.
Date : 2025-12-26 Size : 57kb User : zjc
[matlab] Fuzzy_MI(data) DL : 0: 计算Fuzzy Mutual Information and Fuzzy Entropy-calculate Fuzzy Mutual Information and Fuzzy Entropy
Date : 2025-12-26 Size : 2kb User : gaols
[matlab] approx_entropy DL : 0: 数据集近似熵值的计算，matlab程序代码，简单方便-Data set approximate entropy calculation matlab program code, simple and convenient
Date : 2025-12-26 Size : 1kb User : zzc
[matlab] sampenc DL : 0: 对数据集特征压缩，用样本熵的方法进行压缩，简单，易懂，matlab程序源代码-Compressed data set characteristics, sample entropy compression, simple, understandable, matlab program source code
Date : 2025-12-26 Size : 1kb User : zzc
[matlab] ApEn-approx_entropy DL : 0: ApEn approx_entropy 两种计算近似熵的算法，一个程序简洁明了，一个从基本原理分布算起便于理解，亲自调试，都通过程序验证，结果一致，替换数据即可使用-Approximate entropy algorithm the ApEn approx_entropy two calculations, a program concise, counting a distribution from the basic principles of ease of understanding, the person commissioning, program verification, and the results are consistent, replace the data can be used
Date : 2025-12-26 Size : 2kb User : sunhoukuan
[matlab] sampleEn DL : 0: 样本熵可以帮助你提取一些数据的特征，这是一种非线性的方法。-Sample entropy can help you to extract some of the characteristics of the data, which is a non-linear approach.
Date : 2025-12-26 Size : 1kb User : 开开
[matlab] APEN DL : 0: 近似熵是一种衡量衡量非线性时间序列复杂性的非线性动力学分析方法，其物理意义为熵值越大，时间序列的自我相似性越低，序列越复杂，反之序列自我相似性越高；并且样本熵对于序列长度依赖弱，仅需较短的数据就能够得到稳健的熵值，同时其计算不需对数据粗粒化，具有较好的抗干扰能力-Approximate entropy is a measure to measure the complex nonlinear dynamics of nonlinear time series analysis method, the physical meaning of entropy value is larger, the lower the self-similarity of the time series, the more complex the sequence, whereas sequence of self-similarity the higher and the sample entropy weak dependence for the length of the sequence, only shorter data can be healthy entropy value, calculated without data coarse-grained, with good anti-jamming capability
Date : 2025-12-26 Size : 1kb User : wady
[matlab] MIToolbox DL : 0: The MIToolbox contains a set of functions to calculate information theoretic quantities from data, such as the entropy and mutual information. The toolbox contains implementations of the most popular Shannon entropies, and also the lesser known Renyi entropy. -The MIToolbox contains a set of functions to calculate information theoretic quantities from data, such as the entropy and mutual information. The toolbox contains implementations of the most popular Shannon entropies, and also the lesser known Renyi entropy.
Date : 2025-12-26 Size : 50kb User : pani
[matlab] Wines-Evaluation DL : 0: 2012年全国大学生数学建模竞赛题目--葡萄酒的评价。文件中包含葡萄酒成分数据（Excel文件）、各种数据统计处理的MATLAB函数（已封装好，直接调用），包括：数据预处理、灰色预测、灰色关联度、基于熵权法的模糊综合评价、主成分分析、系统聚类、多元线性回归等程序。-Wines Evaluation from the title of 2012 National Undergraduate Mathematical ModelingContest. The file includes many MATLAB codes about statistical analysis of data.For example: Principal component analysis Grey Relational Analysis Fuzzy Comprehensive Evaluation Based on Entropy Method System Clustering Grey Prediction Multiple linear regression and so on. We can call them directly.
Date : 2025-12-26 Size : 151kb User : charidong
[matlab] matlab-for-maximum-entropy DL : 0: 用于利用最大熵法求解数据资料服从的分布类型。并应用最小二乘法求解模型以得到最优解-Using the maximum entropy method for solving the data distribution type of obedience. And apply the least squares method to obtain the optimal solution to solve the model
Date : 2025-12-26 Size : 1kb User : reed
[matlab] wavelet_entropy DL : 0: 对文件夹下的EXECL文档进行批量计算，该程序用来计算NeuroSky采集到的raw data脑电数据的小波熵，经过验证得到的结论和别人得到的结论一样-help you to calculate the wavelet entropy, the data is collected from NeuroSky Mindset, it is worth for you to read and understand it.
Date : 2025-12-26 Size : 1kb User : lijunjie
[matlab] Calculate-entropy DL : 0: 本程序主要计算一维数据序列的熵值，主要对数据序列进行数据分析-The program is mainly calculate entropy for one-dimensional data series
Date : 2025-12-26 Size : 1kb User : 周阿凡
[matlab] SampEn DL : 0: %SAMPEN??计算时间序列data的样本熵 %? ?? ???data为输入数据序列 %? ?? ???m为初始分段，每段的数据长度 %? ?? ???r为阈值 % $Author: lskyp % $Date:? ?2010.6.20 % Orig Version: V1.0--------分开计算长度为m的序列和长度为m+1的序列 %? ?? ?? ?? ?? ?? ?? ?? ?? ?这一版的计算有些问题，需要注意两个序列总数都要为N-m % Modi Version: V1.1--------综合计算，计算距离时通过矩阵减法完成，避免重循环 % V1.1 Modified date: 2010.6.23(Used to calculate sample entropy)
Date : 2025-12-26 Size : 1kb User : hywsirius

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