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文本分类(采用Java语言)
资源描述利用分类算法实现对文本的数据挖掘,主要包括: 1. 语料库的构建,主要包括利用爬虫收集Web文档等; 2. 语料库的数据预处理,包括文档建模,如去噪,分词,建立数据字典, 使用词袋模型或主题模型表达文档等; 注:使用主题模型,如LDA可以获得实验加分; 3. 选择分类算法(如朴素贝叶斯、SVM等),训练文本分类器,理解所选 的分类算法的建模原理、实现过程和相关参数的含义; 4. 对测试集的文本进行分类 5. 对测试集的分类结果利用正确率和召回率进行分析评价。
- 2022-02-13 04:15:07下载
- 积分:1
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arima
时间序列法,通过过去数据来建立相应模型来预测未来数据(Time series, using past data to establish corresponding models to predict future data)
- 2018-03-08 22:01:43下载
- 积分:1
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pu_ju_lei
将数据集转换为拉普拉斯矩阵,然后利用基于图论的谱聚类进行聚类。拉普拉斯矩阵采用高斯核函数,全连接方法计算。谱聚类擅长处理高维数据或非凸数据集。(The data set is transformed into Laplacian matrix, and then clustered by spectral clustering based on graph theory. The Laplacian matrix is calculated by using the Gauss kernel function and the full connection method. Spectral clustering is good at dealing with high-dimensional or non-convex data sets.)
- 2019-07-01 16:05:39下载
- 积分:1
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clegnup-cyclic-prefix
Random Number Generators随机数生成包括gaussian random number gener(Random Number Generators random number generation includes gaussian random number gene)
- 2018-08-03 22:46:10下载
- 积分:1
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EM 算法
用EM算法求解高斯混合模型并可视化,数据是男女生的身高分布,前提是初始化男女生身高各自的均值和方差和比例,然后由EM算法求解,男女生身高的均值方差,以拟合数据。(The EM algorithm is used to solve the Gauss mixture model and visualize. The data is the height distribution of male and female. The premise is to initialize the mean, variance and proportion of the male and female height, then the mean variance of the height of male and female is solved by the EM algorithm, so as to fit the data.)
- 2018-07-14 12:46:57下载
- 积分:1
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FNN与PCA和KPCA结合
一种特征提取方法:结合主元分析(PCA)和核主元分析(KPCA)的前馈神经网络(FNN)(A feature extraction method: the feedforward neural network (FNN) combined with principal component analysis (PCA) and kernel principal component analysis (KPCA))
- 2020-09-18 10:27:53下载
- 积分:1
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GAM
主要利用R语言进行广义加法模型,进行回归预测(This paper mainly uses R language to carry on the generalized additive model, and carries on the regression forecast)
- 2017-11-10 15:43:21下载
- 积分:1
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ELM
一种神经网络算法:极限学习机(ELM),包括分类和回归,仿真验证无误,适合初学者练习(A data mining algorithm: limit learning machine (ELM), including classification and regression, simulation verification is unmistakable, suitable for beginners to practice)
- 2018-03-14 12:45:55下载
- 积分:1
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mocc3
说明:
- 2018-02-06 13:33:06下载
- 积分:1
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传递熵传递时间计算
计算传递熵延迟时间的程序,根据延迟对应最大传递熵的原理(A program for calculating the delay time of transfer entropy)
- 2017-11-28 09:13:45下载
- 积分:1