用比较简单的方法实现代码相似度的计算！

包含知网完整版程序、以它为基础设计的词语相似度计算程序以及详细的论文资料

一个关于对图像相似度计算处理的python程序

用于对比两幅图像的相似度，验证图像的去噪效果！

Part I Metric Searching in a Nutshell Overview 3 1. FOUNDATIONS OF METRIC SPACE SEARCHING 5 1 The Distance Searching Problem 6 2 The Metric Space 8 3 Distance Measures 9 3.1 Minkowski Distances 10 3.2 Quadratic Form Distance 11 3.3 Edit Distance 12 3.4 Tree Edit Distance 13 3.5 Jaccard’s Coefficient 13 3.6 Hausdorff Distance 14 3.7 Time Complexity 14 4 Similarity Queries 15 4.1 Range Query 15 4.2 Nearest Neighbor Query 16 4.3 Reverse Nearest Neighbor Query 17 4.4 Similarity Join 17 4.5 Combinations of Queries 18 4.6 Complex Similarity Queries 18 5 Basic Partitioning Principles 20 5.1 Ball Partitioning 20 5.2 Generalized Hyperplane Partitioning 21 5.3 Excluded Middle Partitioning 21 5.4 Extensions 21 6 Principles of Similarity Query Execution 22 6.1 Basic Strategies 22 6.2 Incremental Similarity Search 25 7 Policies for Avoiding Distance Computations 26 7.1 Explanatory Example 27 7.2 Object-Pivot Distance Constraint 28 7.3 Range-Pivot Distance Constraint 30 7.4 Pivot-Pivot Distance Constraint 31 7.5 Double-Pivot Distance Constraint 33 7.6 Pivot Filtering 34 8 Metric Space Transformations 35 8.1 Metric Hierarchies 36 8.1.1 Lower-Bounding Functions 36 8.2 User-Defined Metric Functions 38 8.2.1 Searching Using Lower-Bounding Functions 38 8.3 Embedding Metric Space 39 8.3.1 Embedding Examples 39 8.3.2 Reducing Dimensionality 40 9 Approximate Similarity Search 41 9.1 Principles 41 9.2 Generic Algorithms 44 9.3 Measures of Performance 46 9.3.1 Improvement in Efficiency 46 9.3.2 Precision and Recall 46 9.3.3 Relative Error on Distances 48 9.3.4 Position Error 49 10 Advanced Issues 50 10.1 Statistics on Metric Datasets 51 10.1.1 Distribution and Density Functions 51 10.1.2 Distance Distribution and Density 52 10.1.3 Homogeneity of Viewpoints 54 10.2 Proximity of Ball Regions 55 10.3 Performance Prediction 58 Contents ix 10.4 Tree Quality Measures 60 10.5 Choosing Reference Points 63 2. SURVEY OF EXISTING APPROACHES 67 1 Ball Partitioning Methods 67 1.1 Burkhard-Keller Tree 6

用余弦相似度与距离差比较曲线相似度，提出位移比较法对曲线初始位置不一致有较好处理效果，纯C代码未调第三方库，所有原理与代码均有注解，适合数据处理与图像处理用

一些数据挖掘中常用的距离公式和相似度算法，及其python实现代码

图像相似性评价指标SSIM,论文的源程序matlab代码

Python直接使用模型，实现一个简易版的人脸对比，非常有趣！

用java实现的哈工大同义词词林相似度计算，包含工程和文档，可以用来计算两个词之间的相似度，导入Myeclipse可以直接运行