metasearch engine

Question 1: When a site has been logged into the major search engines, and the location is good, after a period of time need to re-register it? If yes, how long should it be better? In general, we do not need to re-register, unless the site's ranking in the engine dropped or your site has a relatively large update. For some minor updates, you do not have to re-register because most of the engines that use the search robot (Robot) will have to visit yo

InnoDB type, but does not provide transactional support, while InnoDB provides advanced database functionality such as transaction support, foreign keys, and so on.Binary data files of type MyISAM can be migrated in different operating systems. That is, it can be copied directly from the Windows system to a Linux system.To modify the engine type of a table:AlterTABLE tablename ENGINE = MyISAM;MyISAM:, whic

How to Use the ode physical engine in the irrlich Engine TranslationNote: ODE is an open-source rigid physical engine, which sounds scary. in fact, it is not complicated, and it is not difficult to combine with the rendering engine. just a few small steps to convert the data, call the ode process, rendering engineWith

[Search engine] Sphinx introduction and Principle Exploration, search engine sphinxWhat/definition of Sphinx Sphinx is a full-text search engine.Features Excellent indexing and Performance Easy to integrate SQL and XML data sources, and use the SphinxAPI, SphinxQL, or SphinxSE search interface Easy to scale through distributed search High-speed index creation (in contemporary CPU, peak performance can

[Cocos2d-x] physical engine entry, cocos2d-x physical EngineRelated Concepts What is a physical engine? Scientific model: the rational simplification of things in scientific research. A physical engine is a computer program that simulates the Newton mechanics model and uses variables such as quality, speed, friction, and air resistance.It can be used to predict

main search Engine Googlehttp://www.google.com/intl/zh-CN/Google's mission is to provide you with the best online search services to facilitate the exchange of global information. Google has developed the world's largest search engine, providing the most convenient online information query methods. by organizing 4, more than 0 pages, Google can provide users around the world with appropriate search results

Tags: MySQL performance tuning six InnoDB engine and MyISAM engine performanceThe choice of the two storage engines depends on the application characteristics of the project, and for the complex application system, it is possible to select a combination of various storage engines according to the actual situation. But this method is not recommended to be taken. MyISAM supports full-text indexing, which is a

Create a project in the Egret engine development guide and an egret engine guide project Egret provides a very convenient creation tool. We call the total number of created files as a project. Follow these steps to create a project: Note that Egret supports Windows and Mac OS X. The Egret command is the same on different platforms. For different commands, refer to the related platform operations in the docu

Use the RuPengGame engine package to create a game form such as Peng game engine package Thread Runnable ticket selling instance and rupenggamerunnable Package com. swift; import com. rupeng. game. GameCore; // import the game engine package// Implement the Runnable interface public class Game_RuPeng implements Runnable {public static void main (String [] args)

Today, the search engine is over and opening up the future. To clarify the third law, let's first review the first and second law.■ Law 1 correlation lawIt sounds like an academic paper. Even the first and second laws have never been mentioned before, but first, the content of the second law has already been recognized by the industry and academia. In fact, this first law has been widely studied by academia before the emergence of the Internet, th

Basic concepts of cocos2d-x-3.6 engine, cocos2d-x-3.6 Engine First, let's talk about several important basic concepts in the engine: Directors, nodes, scenarios, layers, and genie. Of course, developers will encounter many other concepts, but it doesn't matter. With these basic concepts, it will be much easier to learn later. Node is the most basic class in th

No. 362, Python distributed crawler build search engine Scrapy explaining-elasticsearch (search engine) basic index and document CRUD operationsElasticsearch (search engine) basic index and document CRUD operationsthat is, basic indexing and documentation, adding, deleting, changing, checking , manipulatingNote: The following operations are all operating in the

No. 371, Python distributed crawler build search engine Scrapy explaining-elasticsearch (search engine) with Django implementation of my search and popularThe simple implementation principle of my search elementsWe can use JS to achieve, first use JS to get the input of the search termSet an array to store search terms,Determine if the search term exists in the array if the original word is deleted, re-plac

Logical processing functionsCalculate Search Time-consumingBefore starting the search: Start_time = DateTime.Now () Gets the current timeAt the end of the search: End_time = DateTime.Now () Gets the current timeLast_time = (end_time-start_time). Total_seconds () end time minus start time equals times, converted to secondsFrom django.shortcuts import render# Create your views here.from django.shortcuts import Render,httpresponsefrom django.v Iews.generic.base Import viewfrom app1.models import la

In traditional information retrieval, the basic index of the system: Recall (Recall) and precision ratio (pricision), recall is the number of related documents retrieved and the ratio of all relevant documents in the document library; The precision ratio is the percentage of the number of related documents retrieved and the total number of documents retrieved. For a retrieval system, recall rate and accuracy can not be the same: high recall rate, low precision, high precision, low recall. For

First of all, before writing this article, first share a word with you: "What you can do now, do it seriously, don't worry about the future." Ha, this sentence, actually really want to tell oneself just, write on the blog Phper, that time is really thought will always write PHP, unexpectedly, today changed to ASP.net. OK, other don't say, perhaps later also have phper to asp.net or asp.net go to PHP also not necessarily ha. So, write down this article today, so that I am familiar with the sma

The MyISAM type does not support advanced processing such as transaction processing, while the InnoDB type supports. This article will explain the differences between engineinnodb and enginemyisam in mysql. If you do not know how to learn, I hope it will be helpful for you. When you first use MySQLAdministrator to create a database, the default table type is InnoDB, so you don't care. Later, Ac The MyISAM type does not support advanced processing such as transaction processing, while the InnoDB

Use Razor template engine and mvcrazor template engine from MVCAbout Razor template engine 1.Introduction Template engine: Razor, Nveocity, and Vtemplate. Razor has an automatic VS prompt. It is easier to use. However, Razor is mostly used in MVC. So how to use Razor in a non-MVC environment? 2.Use Razor in non-MVC Mo

How to Learn efficiently is the most worth learning. First import the shelf package, download: http://download.csdn.net/detail/duancanmeng/4060082 lib folder Like the android program entends activity, we also need extends basegameactivity at the beginning, and four functions must be overloaded: public class Main extends BaseGameActivity { public void onLoadComplete() { } public Engine onLoadEngine() { return null;

MySQL FEDERATED engine and mysqlfederated EngineThe FEDERATED storage engine accesses the data in the table of the remote database, rather than the local table. This feature facilitates some development applications. You can directly create a federated table locally to connect to the remote data table. After configuration, the data in the local table can be directly synchronized with the remote data table.