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百度搜索引擎工作原理-4-外部投票

外部投票是指其他網(wǎng)站通過鏈接引導(dǎo)用戶來到被投票網(wǎng)站的行為。在搜索引擎的工作原理中，外部投票是非常重要的因素之一，因?yàn)樗阉饕鎸⑵湟暈槠渌W(wǎng)站對(duì)被投票網(wǎng)站的認(rèn)可和推薦。外部投票的數(shù)量和質(zhì)量對(duì)搜索引擎的排名影響非常大。如果一個(gè)網(wǎng)站擁有高質(zhì)量的外部投票，那么搜索引擎就會(huì)認(rèn)為這個(gè)網(wǎng)站是一個(gè)權(quán)威和受歡迎的網(wǎng)站，排名會(huì)相應(yīng)提高。相反，如果一個(gè)網(wǎng)站的外部投票數(shù)量和質(zhì)量很差，搜索引擎就會(huì)認(rèn)為這個(gè)網(wǎng)站不值得被推薦，排名會(huì)下降。在外部投票中，鏈接的質(zhì)量是非常重要的因素之一。高質(zhì)量的鏈接來自于權(quán)威的網(wǎng)站，內(nèi)容與被投票網(wǎng)站相關(guān)，并且自然地合理地出現(xiàn)在網(wǎng)站中。低質(zhì)量的鏈接來自于無關(guān)、低質(zhì)量的網(wǎng)站，可能是垃圾郵件或者黑帽SEO的產(chǎn)物。因此，對(duì)于搜索引擎優(yōu)化（SEO）來說，外部投票是不可忽視的一部分。優(yōu)化者需要通過提高網(wǎng)站質(zhì)量和內(nèi)容吸引其他網(wǎng)站的鏈接，從而獲得更高的排名。同時(shí)，他們也需要注意避免使用不當(dāng)?shù)逆溄硬呗?，避免被搜索引擎懲罰。

Public @ 2023-04-21 22:50:31

搜索引擎檢索系統(tǒng)概述

搜索引擎檢索系統(tǒng)是指實(shí)現(xiàn)引用文獻(xiàn)資源檢索、特定學(xué)科知識(shí)檢索等服務(wù)的系統(tǒng)。包括主要用于進(jìn)行引文檢索的數(shù)據(jù)庫(kù)管理系統(tǒng)、多元綜合檢索系統(tǒng)，瀏覽引擎，等。其主要功能包括：引文的資源的收集、索引、目錄和存儲(chǔ)；對(duì)文獻(xiàn)進(jìn)行分類和檢索；檢索系統(tǒng)中相關(guān)檢索結(jié)果的排序和顯示；瀏覽系統(tǒng)中各式學(xué)術(shù)服務(wù)，比如新聞信息、擁有特定學(xué)科內(nèi)容的網(wǎng)站；支持Web檢索、模糊檢索、多備份系統(tǒng)等功能，以確保檢索準(zhǔn)確性；在線的文獻(xiàn)的

Public @ 2023-02-24 07:48:33

搜索引擎是怎么刪除重復(fù)網(wǎng)頁(yè)的

百度曾在站長(zhǎng)貼吧里做過這樣一個(gè)回復(fù)：從用戶體驗(yàn)角度，“有些轉(zhuǎn)載未必比原創(chuàng)差”。比方一篇科技原創(chuàng)博文，被知名門戶網(wǎng)站的科技頻道轉(zhuǎn)載。如果這種轉(zhuǎn)載保留原創(chuàng)者姓名和出處鏈接，實(shí)際上對(duì)原創(chuàng)者是有利的，因?yàn)槠鸬搅烁玫膫鞑バЧＶ皇菄?guó)內(nèi)的轉(zhuǎn)載，很多是掐頭去尾，使原創(chuàng)者比較受傷。據(jù)資料表明近似重復(fù)網(wǎng)頁(yè)的數(shù)量占網(wǎng)頁(yè)總數(shù)的的比較高達(dá)全部頁(yè)面的29%，而完全相同的頁(yè)面大約占全部頁(yè)面的22%。很多站長(zhǎng)都會(huì)抱怨，自己寫

Public @ 2011-01-17 16:22:23

百度搜索引擎工作原理

最新更新章節(jié)：2019-03-04關(guān)于百度以及其它搜索引擎的工作原理，其實(shí)大家已經(jīng)討論過很多，但隨著科技的進(jìn)步、互聯(lián)網(wǎng)業(yè)的發(fā)展，各家搜索引擎都發(fā)生著巨大的變化，并且這些變化都是飛快的。我們?cè)O(shè)計(jì)這個(gè)章節(jié)的目的，除了從官方的角度發(fā)出一些聲音、糾正一些之前的誤讀外，還希望通過不斷更新內(nèi)容，與百度搜索引擎發(fā)展保持同步，給各位站長(zhǎng)帶來最新的、與百度高相關(guān)的信息。本章主要內(nèi)容分為四個(gè)章節(jié)，分別為：抓取建庫(kù)；檢

Public @ 2014-04-22 16:21:48

百度搜索引擎工作原理-3-檢索排序

搜索引擎索引系統(tǒng)概述眾所周知，搜索引擎的主要工作過程包括：抓取、存儲(chǔ)、頁(yè)面分析、索引、檢索等幾個(gè)主要過程。上一章我們主要介紹了部分抓取存儲(chǔ)環(huán)節(jié)中的內(nèi)容，此章簡(jiǎn)要介紹一下索引系統(tǒng)。在以億為單位的網(wǎng)頁(yè)庫(kù)中查找特定的某些關(guān)鍵詞猶如大海里面撈針，也許一定的時(shí)間內(nèi)可以完成查找，但是用戶等不起，從用戶體驗(yàn)角度我們必須在毫秒級(jí)別給予用戶滿意的結(jié)果，否則用戶只能流失。怎樣才能達(dá)到這種要求呢？如果能知道用戶查找的關(guān)

Public @ 2022-09-15 16:21:46

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[ DB ] CONNECT:[ UseTime:0.025097s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018121s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7567 LIMIT 1 [ RunTime:0.017185s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.017202s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.017380s ]
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[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.017979s ]
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[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7567 LIMIT 1 [ RunTime:0.016844s ]
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[ SQL ] update `ob_article` set views=views+2 where id=7567 [ RunTime:0.017665s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海搜索引擎工作原理' AND `status` <> -1 LIMIT 1 [ RunTime:0.023543s ]
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[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海搜索引擎工作原理' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033807s ]
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[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海百度搜索引擎工作原理（百度搜索資源平臺(tái)）' AND `status` <> -1 LIMIT 1 [ RunTime:0.023722s ]
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[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海百度搜索引擎工作原理（百度搜索資源平臺(tái)）' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.032754s ]
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0.451471s