Graph Theory 3 bipartite graph matching, graph theory Bipartite Graph Matching
You can learn http://www.renfei.org/blog/bipartite-matching.html here firstTemplate
According to the above blog, the bipartite graph matching can be divided into four types
Maximum number of match
The source text is not found. Please refer to the link below:
Http://www.cnblogs.com/hiside/archive/2010/12/01/1893878.html
Http://topic.csdn.net/u/20071023/11/3edb81fc-37b2-4506-906e-44dc0fc521f2.html1. undirected graph: Method 1:
If a loop exists, a subgraph is a loop. Degrees of all vertices in the loop> = 2.
N algorithm:Step 1: Delete all vertices with a degree Step 2: Enter the vertex whose degree is 1 into the queue and retrieve a vertex from th
Convert undirected graphs to point-to-double-connected graphsDefinition: Point-double connect refers to a path with at least two points that are not duplicated between any twoThere are two kinds of cases, one is connected graph, the other is non-connected graph① Connectivity DiagramFirst, find all the points in the graph-the two connected components, and then ind
.
Kruskal algorithm-merging forests into trees
Third, topological sortingTopological order : if there is a forward path from V to W in the diagram, V must precede w. The sequence of vertices that satisfy this condition is called a topological order.The process of obtaining a topological order is topological ordering .AOV (Activity on Vertex) If there is a reasonable topological order, it must be a directed acyclic graph (Directed acyclic
What is ole db? Introduction to ole db, oledb
Ole db (OLEDB) is a strategic low-level application interface for Microsoft to access different data sources. Ole db not only supports the Structured Query Language (SQL) of Open Database Connectivity (ODBC), but also supports other non-SQL data types.Introduction
OLE stan
There are n schools under the OA for school enrollment, and each school needs to have relatively independent data management and statistics,
When we use a line chart, we will show all the lines in its series.
I believe that some network enterprise management programs will be used by friends!
Graph:Reference content
Demo:
Test/lib/amline/amline.html
Test/lib/amline/examples/amline1.html
Test/lib/amline/examples/amline2.html
Test/lib/amline/examples/amline3.html
Test/lib/amline/examples/amline4.
If you need to optimize the performance of the backend database of the Server, you can use the Server configuration file to understand the specific parameters of the graph database. These important parameters are stored in$ NEO4J_HOME/conf/neo4j-server.propertiesFile, including the path of the server database on disk:
org.neo4j.server.database.location=data/graph.db
Http server interface:
org.neo4j.server.database.location=data/graph.db
Set the
[CUT graph] Cutting Method of irregular graph, cut Graph
Link the selected two layers. In the future, you can drag the irregular image directly regardless of the selected two layers (select the layer and click the link icon below, you can connect the layers), for example:
PS tips:
Before clicking the picture to select a layer, remember to do the fo
Encapsulate your own DB Class (PHP) and db Class php. Encapsulate your own DB Class (PHP). encapsulate db Class php to encapsulate a DB class for special database operations. any operations on the database in the future will be implemented by
Database operation functions in the CI framework $ this-> db-> where () usage summary, this-db-
This example summarizes the usage of database operation functions $ this-> db-> where () in the CI framework. We will share this with you for your reference. The details are as follows:
CI framework database operation function this->
Tags: png recover title cut ROS Development ext Cat TarThis article describes a simple SQL script that implements the ability to shrink all non-system db file sizes across Microsoft SQL Server instances. As a program that deals with SQL every day, apes often encounter db files that are too large to fill the space: For the development tester, if the DB data is n
Recently began to seriously learn the algorithm, with the Sedgewick of the "algorithms". Much of the content is the same as the data structure, the difference is the content of the algorithm more explanation. I often keep track of the difficulties I encounter in learning algorithms and how to solve them.The problem of judging the existence loop is encountered when learning the topological sort. The problem of judging the ring is divided into the direction gr
Tags: process build rail info from BSP content lag stop For non-Oracle DB, SQL Server is a sample description: My train of thought A:oracle DB production B:oracle DB Intermediate machine C:sqlserver db destination a-> b->c Note: B on both the rep process also has the EXT process, at this time. There is also a need to e
Tags: Oracle goldengate initial Load methodNon-Oracle DB is illustrated with SQL Server as an example:My train of thoughtA:oracle DB production B:oracle DB Intermediate machine C:sqlserver db destinationa-> b->c Note: B on both the rep process and ext process, at this time, C also need to establish a rep process for B.
DB Query Analyzer 6.03, the most excellent Universal DB Access tools on any Microsoft Windows OS,
DB Query Analyzer 6.03, the most excellent Universal database Access tools on any Microsoft Windows OS
DB Query Analyzer is presented by Master Genfeng, Ma from Chinese Mainland. It has English version named '
Document directory
MVCC
Horizontal scalability
Query expression
Atomicity
Durability
Map reduce
Javascript
Rest
Performance
Use Cases
Http://www.mongodb.org/display/DOCS/Comparing+Mongo+DB+and+Couch+DB, English
Http://www.searchdatabase.com.cn/showcontent_46595.htm (Chinese)
The most fundamental difference is that the difference in application scenarios is the difference in the choice of CAP.
You cannot use Db-library (such as ISQL) or ODBC 3.7 or earlier to ntext data
Warning:mssql_query () [Function.mssql-query]: message: You cannot ntext data or use Unicode collations with db-library (such as ISQL) or ODBC 3.7 or earlier The Unicode data is sent to the client. (severity) in D:phpnowhtdocss includedb_mssql.class.php on line 55
The code is as follows
Copy Code
Warn
diagnosis.For a row that lasts for more than 6 seconds, most of the operations may be full table scan (in any case, this part of information is worth noting ).
We use a case study to familiarize ourselves with this waiting event:
DB Name DB Id Instance Inst Num Release OPS Host ---------- ----------- ---------- -------- ---------- ---- ---------- K2 1999167370 k2 1 8.1.5.0.0 NO k2This is a databa
Tags: mysql yii yii2 database frameworkYII2 database Exception–yii\db\exception sqlstate[hy000] [2002] No such file or directory error resolution when working with MySQL databasesA similar error occurred in the database operation, in fact, the PDO in PHP configuration file php.ini not specified Mysql.sock (or mysqld.sock) file path cannot link the databaseDatabase Exception–YII\DB\EXCEPTIONSQLSTATE[HY000] [
Problem descriptionThe following error message appears when you try to use SSAS for OLAP in the official Microsoft Tutorial:
Severity Code Description Project File Line Suppression state
Error OLE DB errors: OLE DB or ODBC error: Login failed for user ' NT service\mssqlserverolapservice '.; 28000. 0
Cause of the problemThis issue occurs because of an authorization authentication error when
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