canny algorithm

operating Environment (WIN7): 1. Download Python3.3.exe 2. Download the Numpy-1.9.1-win32-superpack-python3.3.exe in http://sourceforge.net/projects/numpy/files/ the basic principle of KNN classification algorithm: Given training set A and test sample T, select the K training samples closest to T and a, and select the most frequently occurring labels in these training samples as new labels for the test sample T. the pseudo-code flow of the KNN classif

1. Complexity of TimeThe time complexity of the algorithm is the basic method to measure the efficiency of an algorithm. While reading other algorithmic tutorials, the time-complexity of the algorithm is somewhat jerky and difficult to understand. It is not possible to measure the algorithm well in practical applicatio

[Java]Package Ceshi;Public class biSearch {/*** @ Param args*//*Semi-query-when the table is an ordered table, you can use semi-query;Basic Idea: in an ordered table, take the intermediate element as the comparison object. If the given value K is the same as the intermediate record keyword, the search is successful;If the given value K is less than the keyword of the intermediate record, continue searching in the left half of the table;If the given value K is greater than the keyword of the inte

The last article talked about the quick sort, this article mainly talks about heap sort 2.5, heap sort algorithm 1, what is the heapThe heap is a tree structure, more accurately a complete binary tree. And the data for each non-leaf node is greater than or equal to (less than or equal to) its left and right child nodes, so that the root node of the heap structure is the maximum (minimum), and the heap is called the maximum heap (the smallest heap). So

OutputFor each case, output a single integer and the maximum rate at which water may emptied from the pond. Sample Input5 41 2 401 4 202 4 202 3 303 4 10 Sample Output50 Template problem, to understand the reverse side of the addition (to provide the opportunity to regret)Reference Blog: http://www.cnblogs.com/zsboy/archive/2013/01/27/2878810.html EK algorithm:Each augmentation is through the BFS, through Dfs can only find a routeAnd Dinic Dfs is looking for a number of routes, relatively fast

SPFA Algorithm definition Inventor: Dengfanding Time: 1994 Time complexity O (e) Principle: A FIFO queue, an array d that holds the shortest distance. When initializing: There is only one source point in the queue. That is, the starting point itself. The value in D is the maximum value except that the starting point has its own distance of 0. Queue={v0},d={0,max,max,max...max}, then the VO is taken out of the value of Max at the distance from the J

Insert Sort Algorithm definition Insert Sort: Inserts a new data into an ordered array and continues to be ordered. For example, there is an unordered array of length n, which can be sorted by N-1 the first time, the 1th number of the array is considered an ordered array, the second element of the array is inserted into only 1 ordered arrays, and the second, the first two elements of the array make up an ordered array, Inserts the third element of t

of: {11,9,10,5,8,2,6,4,3,1,7} Heap Sort definition Heap ordering (heapsort) refers to a sort algorithm designed using the data structure of the heap. A heap is a structure that approximates a complete binary tree and satisfies the properties of the heap at the same time: that is, the key value or index of the child node is always less than (or greater than) its parent node. The average time complexity for heap sorting is 0 (NLOGN). Steps 1. Create

Algorithm Definition 　　An algorithm (algorithm) is an accurate and complete description of a solution and a series of clear instructions for solving problems.The algorithm represents a system method to describe the problem-solving policy mechanism. That is to say, the required output can be obtained for certain standar

SummaryClustering is unsupervised learning ( unsupervised learning does not rely on pre-defined classes or training instances with class tags), it classifies similar objects into the same cluster, it is observational learning, rather than example-based learning, which is somewhat like a fully automated classification. To put it bluntly, clustering (clustering) can be understood literally--the process of clustering identical, similar, close, and related object instances into one class. The common

Algorithm and algorithm analysisIt's irrelevant to say something first. Junior High School, know that there are CS this specialized discipline exists when the first concept of CS is equivalent to the algorithm. This may be because the former table was later a generation of CS legendary WJMZBMR. Because at that time looked very high-end, coupled with the direction

in the first section, the meta-algorithm briefly describesIn the case of rare cases, the hospital organizes a group of experts to conduct clinical consultations to analyze the case to determine the outcome. As with the panel's clinical consultations, it is often better to summarize a large number of individual opinions than a person's decision. Machine learning also absorbed the ' Three Stooges top Zhuge Liang ' (essentially by the three tsuginoikusan

This article is excerpted from Chapter 6 "this is a search engine: Core Technology details ". The HITS algorithm is also a very basic and important algorithm in link analysis. Currently, it has been used as a link analysis algorithm by Teoma search engine (www.teoma.com. 6.4.1 hub page and authority page The Hub page and the Authority page are two basic HITS

http://blog.csdn.net/orbit/article/details/7323090The plane area filling algorithm is an important algorithm in the field of computer graphics, which gives the boundary of an area (or the absence of a boundary, but only the specified color), which requires that all the pixel elements within the boundary range be modified to the specified color (or it may be a hatch). Polygon fills are most commonly used in

Blog reprinted from: 1871520According to Drew, the shortest path algorithm is now an important application of computer network routing algorithms, Robot Pathfinder, traffic route navigation, artificial intelligence, game design and so on. The d* (D Star) algorithm is the core pathfinding algorithm of the American Mars probe. The shortest path is calculated by cal

ObjectiveThis article continues our Microsoft Mining Series algorithm Summary, the previous articles have been related to the main algorithm to do a detailed introduction, I for the convenience of display, specially organized a directory outline: Big Data era: Easy to learn Microsoft Data Mining algorithm summary serial, interested children shoes can be viewed, B

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String matching has been one of the most popular research problems in computer field, and many algorithms are emerging. The string matching algorithm has a strong practical value, which is applied to information search, spell checking, bioinformatics and other fields.Today we introduce some of the more famous algorithms:1. BF2. BM3. Sunday4. KMP -,BF algorithmThe BF (brute Force) algorithm, also known as th

The HITS (Hyperlink-Induced Topic Search) algorithm was first proposed by Dr. Jon kleberger of Cornell University in 1997, part of the "CLEVER" Research project for IBM's Almaden Research Center. The HITS algorithm is a very basic and important algorithm in link analysis. Currently, it has been used as a link analysis algorit