Prerequisite conditions
Specific areas of experience requirements: no
Professional experience Requirements: no industry experience
Knowledge of machine learning is not required, but readers should be familiar with basic data analysis (e.g., descriptive analysis). To practice This example, the reader should also be familiar with Python.
Introduction to K-means Clustering
K-means clustering is an unsupervised learning that is used when there is unlabeled data (for example, the data does not d
From: Http://hi.baidu.com/zhy65991/blog/item/0a663172b039321a8601b0e4.html Usually, the encryption algorithm used is relatively simple and efficient, the key is short, encryption and decryption speed, deciphering extremely difficult. This paper introduces the use of Md5/sha1,dsa,desede/des,diffie-hellman.
1th Chapter Basic Knowledge
1.1. One-Key cipher system
Single-key cryptosystem is a traditional encryption al
directed Search
In a * algorithm loop, the open collection is used to hold all the searched nodes used to find the path. The directed search is a variant algorithm based on A * algorithm, which is set by restricting the open set size. When the set is too large, the node that is most unlikely to appear on the optimal path will be rejected. This has the disa
Simple Bus transfer algorithm:
Three tables (most simplistic, do not consider fuzzy query, one-way street and other things):1, the Site table Stop (stop_id,stop_name)2, route table line (line_id,line_name)3, Route site table (point line Relational table) Linestops (line_id, stop_id, seq) the SEQ here refers to the order of a site in a line.
Now analyze the algorithm:1, Direct LineFirst of all, according to
This series of Bowen introduces the common probabilistic language model and its deformation model, mainly summarizes the deformation model and parameter inference method of pLSA, LDA and LDA. The preliminary plan is as follows:
First article: pLSA and EM algorithm
Second article: Lda and Gibbs samping
The third article: LDA deformation model-twitter Lda,timeuserlda,atm,labeled-lda,maxent-lda, etc.
Fourth: A summary of paper classification based on def
------------------------------- Tian Lu Pixiu Peter Wong Winter Technology blog -------------------------------1.1 What is an algorithm? Literal: the algorithm is used to calculate the method, through such a method can achieve the desired results.Professional definition: algorithms are a set of feasible, deterministic, and poor rules for model Analysis.From the programming point of view: the
Transferred from: http://www.cnblogs.com/biyeymyhjob/archive/2012/07/31/2615833.htmlDijkstra algorithm1. Definition OverviewThe Dijkstra (Dijkstra) algorithm is a typical single-source Shortest path algorithm that calculates the shortest path of a node to all other nodes. The main feature is to extend from the center of the starting point to the outer layer until it expands to the end point. Dijkstra
Dijkstra Algorithm
1. Definition Overview
Dijkstra is a typical single-source shortest path algorithm used to calculate the shortest path from one node to all other nodes. The main feature is to expand horizontally at the center of the starting point until the end point is reached. Dijkstra algorithm is a representative shortest path
This digest from: http://www.cnblogs.com/biyeymyhjob/archive/2012/07/30/2615542.html minimum spanning tree-prim algorithm and Kruskal algorithmPrim algorithm1. OverviewPrimm algorithm (prim algorithm), an algorithm in graph theory, can search for the smallest spanning tree in weighted connected graphs. This means that
From http://www.cnblogs.com/biyeymyhjob/archive/2012/07/31/2615833.htmlDijkstra algorithm1. Definition OverviewThe Dijkstra (Dijkstra) algorithm is a typical single-source shortest path algorithm that calculates the shortest path of a node to all other nodes. The main feature is to extend from the center of the starting point to the outer layer until it expands to the end point. Dijkstra
develop your own plug-in of the licensing algorithm. You only need to implement an algorithm interface, which defines two methods. You only need to implement these two algorithms to complete your own fake algorithms. Interestingly, you can also compete with others to determine which algorithm is better.
The following describes this interface and a simple and
Prim algorithm1. OverviewThe Primm algorithm (prim algorithm), an algorithm in graph theory, can search for the smallest spanning tree in weighted connected graphs. Meaning that this algorithm is a subset of the edges found in the tree, not only includes all the vertex ( English : vertex (graph theory) ) , and t
Introduction to the Optimization algorithm article catalog (UPDATE):
1. Simulated annealing algorithm
2. Genetic algorithms
I. Mountain climbing algorithm (hill climbing)
This paper introduces the mountain climbing algorithm before simulated annealing. Mountain climbing algorithm
Optimization Algorithm Starter series article catalog (in update):
1. Simulated annealing algorithm
2. Genetic algorithms
I. Mountain climbing algorithm (hill climbing)
This paper introduces the algorithm of mountain climbing before simulated annealing. The mountain climbing algor
7.2 Two-Item distribution algorithmAuthor Bai NingsuAugust 15, 2015 22:51:38
Abstract: In this paper, the study of the geometric distribution of statistics, two distribution, Poisson distribution in depth, based on a variety of distribution of basic concepts and core knowledge introduced. For the realization of various distributions and the application of the real environment is the purpose. In conducting a series of independent experiments, each has both success and failure, and the pr
natural, how can users effectively dig out all of these patterns? Let's discuss the simplest and most natural way. Before we talk about this algorithm, we first declare a feature-aprior feature in frequent pattern mining.Aprior Features:This feature means that if an item set (project collection) is not a frequent item set (a frequent collection), then any set of items that contain it must not be a frequent collection. The collection here is a pattern
Classic Algorithm Research Series: 1. A * Search Algorithm
Author: July, January 2011----------------------------------Bloggers:1. In this series of classical algorithm research, I hope this series of articles is not good enough.2. This classic algorithm research series is my reference. It is an original article, which
Refer to the previous article: paxos algorithm 1.
1. Number Processing
According to P2c
, Proposer will first consult the acceptor to view the maximum number and value it approves before deciding which value to submit. Previously, we have been emphasizing higher-numbered proposal without explaining how to handle low-numbered Proposal.
| -------- Low number (L
P2c
The correctness is guaranteed by the higher serial number H generated by the current ser
The algorithm foundation of the introduction of rereading algorithm
Insert Sort? An efficient algorithm for small amounts of data. Principle:
The elements in the array are divided into two parts throughout the process, sorted part A and unsorted part B
In the insert process, never sort part B takes a value to insert the sorted part A
Sorting algorithms can be divided into internal and external sorting, the internal sorting is the data records in memory to sort, and the external sort is because of the data is very large, one can not hold all the sort records, in order to access the external memory.
Common internal sorting algorithms are: Insert sort, hill sort, select sort, bubble sort, merge sort, quick sort, heap sort, cardinality sort, etc. algorithm one: Insert sort
Insertion
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