jmp correlation

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Under the thinkphp-correlation model

Pair more: Has_manyControllernamespace Home\controller;Use Think\controller;Class Glmoxcontroller extends Controller {Public Function index () {$user =d (' con ');$arr = $user->relation (True)->select ();Echo ' Print_r ($arr);Echo ' }}?>Modelnamespace Home\model;Use Thimk\model;Use Think\model\relationmodel;Class Glmxingmodel extends relationmodel{Protected $_link = Array (' Con ' = Array (' Mapping_type ' + self::has_many,//sets the correlation mode,

A study on the preservation of hibernate-to-multi-correlation relationship

when Hibernate was previously used, it was often not determined if the object with the associated relationship was saved successfully.Therefore, it is deliberate to practice the 2 objects of a one-to-many relationship.I. Preparation of POJO classes and configuration FilesHere's a little bit ahead of time.foreign key ColumnsIn the databaseis not set to null 。 Therefore, a foreign key can appear empty.(1) Pojo class (2) mapping file (3) Preparation of methods in the test class Two, both sid

Verify that the correlation sort is dependent on how closely the query's multiple keywords are adjacent to the content

Yesterday to the company colleagues introduced the Lucene correlation rating formula, everyone mentioned a problem, total feeling with correlation degree, Lucene will query keyword adjacent close doc row in front, but scoring formula but not mentioned this factor,So I'm going to check to see if the severity of the query will affect the score. Local Code Add DOC program1 set Lucene to save all information ab

Sorting and correlation (sorting and relevance)

This article is translated from the first section of the sorting and relevance chapter of the Official Elasticsearch guide.Original address: http://www.elastic.co/guide/en/elasticsearch/guide/current/_sorting.htmlSortEs by default is to sort the results by relevance, the most relevant document at the top. In this chapter, we explain what we mean by relevance and how it is calculated, but let's start with the sort parameter and how it is used.To sort by relevance, we need to represent the

"SSH Advanced path" hibernate mapping--one-to-one unidirectional correlation mapping (v)

"SSH Advanced Path" Hibernate fundamentals (i) , the small part introduces the basic principle of hibernate and its core, using the object-oriented thinking operation relational database. "SSH Advanced path" hibernate build development environment + Simple example (ii) , Xiao-bian set up the basic hibernate development environment, and made a simple example, the basic principle of it has a rational understanding. "SSH Advanced Path" hibernate basic mapping (c), we introduced the basic mapping of

Make the website more competitive by doing the correlation

Talked about the role of Web site relevance, I believe a lot of webmaster friends know, do a good job of the relevance of the site, not only can make the site appear more professional, reduce the bounce rate of the site, but also to improve the weight of the site has a lot to help, that we should from what aspects to do I. Relevance of target keywords The target keyword is refers to put in the website homepage The key words, many friends heard the website homepage is the website weight highest

MySQL delay correlation and index overlay

The tests that were previously done on the latency correlation and index coverage were not recorded at the time, resulting in the recollection of forgetting some of the minutiae behind them. Today, take advantage of the impulse to revisit the test results.The following is the build table statement:CREATE TABLE ' human ' (' ID ' int (one) not NULL auto_increment COMMENT ' primary key ', ' name ' varchar () NOT NULL DEFAULT ' COMMENT ' Name ', ' age ' i

One-to-one correlation mapping/component mapping in Hibernate

Hibernate mappings: one-to-one correlation 1. Follow the foreign key map2. Follow the primary key mapping   Component MappingsThe following is an example of the Employee Account form and the Employee Profile table (a one-to-two relationship between the employee account and the file table), which is described in the following two mapping relationships, and each of these mappings is used to perform persistent operations(1) The employee file is saved and

A detailed description of the curl correlation function in PHP

A detailed description of the curl correlation function in PHP A detailed description of the curl correlation function in PHPIn PHP, you can use the power provided by curl by calling the following function.curl_init-Initializes a curl dialog and returns a link resource handlecurl_exec-runs a Curl dialog that returns true successfully, otherwise false. If Curlopt_returntransfer is set, the response content

POJ 2262 Goldbach & #39; s Conjecture (prime correlation), pojconjecture

POJ 2262 Goldbach's Conjecture (prime correlation), pojconjecture POJ 2262 Goldbach's Conjecture (prime correlation) Http://poj.org/problem? Id = 2262 Question: To give you an even number in the range of [6,], you need to represent it in the form of two prime numbers plus each other. If multiple groups of solutions exist, output the solution with the greatest difference between two prime numbers. Analysis:

Correlation matrix Exercises

1. The map: the graph G is a two-tuple of an ordered pair of set a of certain elements in a non-empty finite set of V and V,Note: g= (v,a), where V (Vertex) is the set of vertices of graph G, a (ARC) is the arc set of Figure G .2. Correlation matrix: The associated matrix of a g= (V,A) is defined as a matrix b:b is a n*m matrix,n is the number of vertices, M is the number of arcs, or B[I][k] Represents(1) If B[I][k]=1, then the nth side is the entry

Location-independent Code location correlation code

Using location-independent codes in the AssemblyB,blUsing location-independent codes in the C languageDo not use global variables without static variablesLocation Independent code: When the CPU refers to, always relative to the relative address of the execution instruction of this article to fetch the reference. For example, when an add command is used, the PC needs to remove the address of an instruction on the original basis +4. This does not matter where your code is placed in the memory, as

Constant Correlation Function Learning notes

/* Constant correlation function */definedget_defined_constants/* predefined constant */__file__ the absolute path of the file __line__ the current line number in the file __dir__ the directory in which the file is located __ function__ function name the name of the __class__ class __method__ The method name of the class __namespace__ the name of the current namespace/* integer */integer

How can I convert a one-dimensional array into a two-dimensional array based on the correlation between key names? Thanks

How can I convert this one-dimensional array into a two-dimensional array based on the correlation between key names? Thank you, big brother! My one-dimensional array is as follows: PHPcode? Array ([xm1] gt; artificial new pipeline well [dj1] gt; 300 [sl1] gt; 100 [zj1] gt; 30000 [xm2] gt; bathroom backfilling [dj2] gt; 100 [sl2] gt; [how does zj convert this one-dimensional array into a two-dimensional array based on the key-name

correlation model [1]

data. Mapping_type Set the correlation mode, such as one-to-one self::has_one. Foreign_key The name of the associated foreign key, which automatically corresponds to the ID of the current data table. Mapping_fields The field that is associated with the query is queried by default. As_fields The associated field is mapped to a field of a sibling. Condition

The correlation calculation formula of Lucene TF-IDF

Transferred from: http://lutaf.com/210.htm Lucene uses the TF-IDF algorithm to calculate the relevance of keywords and documents by default when querying a keyword, using this data to sort TF: Word frequency, IDF: Reverse document frequencies, TF-IDF is a statistical method, or is called a vector space model , the name sounds complex, but it actually contains only two simple rules The more often a word or phrase appears in an article, the more relevant it is The less the number of

Lucene TF-IDF correlation score formula), lucenetf-idf

Lucene TF-IDF Correlation Formula Lucene in keyword query, by default, using the TF-IDF algorithm to calculate the relevance of keywords and documents, using this data sorting TF: Word Frequency, IDF: reverse Document Frequency, TF-IDF is a statistical method, or knownVector Space ModelThe name sounds complicated, but it actually only contains two simple rules. So the TF-IDF correlation of a term is equal t

Blue Bridge Cup _ Algorithm training _ Correlation matrix

This topic first we need to know what the correlation matrix is:This is the definition of the association matrix found on the internet, the personal feeling is still relatively clear.Well, the next step is to make the output of the matrix based on the given data.The problem is given to the graph, the definition is the non-direction diagram. The difference between the two should be able to think, there is a direction graph has the starting and ending c

python-the correlation of calculated data

First explain what is called data correlation:Calculates the average of two arrays, or true if two values in two arrays are greater than or are less than the average. If a value greater than the average is less than the average, then false is obtained. The number of true and false is finally calculated.For example, two arrays [1, 2, 3, 4] and [4, 5, 6, 7], get (4, 0). Since both 1 and 4 are below the average of their array, 2 and 5 are also lower than the average of their array, 3 and 6 are high

Correlation Mining and Aprioir algorithm

Apriori algorithm Advantages: Easy Code Implementation Cons: May be slow on large data sets Applicable data type: numerical or nominal type Algorithm process: Correlation analysis is a task of finding interesting relationships in a large-scale data set, where there are two interesting relationships: frequent itemsets (frequent item sets) or association Rules (Association).Support: The level of support for an item set is defined

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