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PageRank（PR值）

威海链接原理威海PR
680

PageRank是沉迷Google的人们用来测验其站点在Google中的排名的一种衡量规范，SEO和查找引擎营销（SEM）专家也运用这个术语描绘网页在SERP中的排名以及Google依据排名算法给予站点的分数，无论怎么界说，PageRank都是SEO的重要部分。

Public @ 2010-02-23 15:39:10

浅谈搜索引擎的核心算法

外链是搜索引擎算法中，判断网站权重高低的重要指标，当用户在搜索框中输入关键时，搜索引擎面对大量拥有相同内容的网页，首先需要解决的就是，通过哪些参数觉得网页排名的高低。今天，笔者就简单介绍外链建设中，比较有名的核心算法：PageRank算法、Hilltop算法、Direct Hit 算法。第一种算法、PageRank算法1998年，Sergey Brin和Lawrence Page提出了PageRa

Public @ 2016-10-16 16:21:57

Google的BERT算法更新

这篇帖子是去年（2019年）10月28号打的草稿，今天补充完成发出来。过去一年，关于搜索算法和SEO思维最大的新闻依然是这件事。2019年10月，Google公布上线BERT算法。什么是BERTBERT是Bidirectional Encoder Representations from Transformers的缩写，中文意思大概是“双向transformer编码器表达”，“transforme

Public @ 2018-08-23 15:54:59

Matt Cutts谈PR和PR更新

威海链接原理威海PR
955

大家都注意到前两天Toolbar(工具条)PR已经更新了。Matt Cutts发了一个帖子，回答一些关于PR和PR更新的问题。问：我很好奇PR值在内部是怎样存储的？是小数，就像人们猜测的，还是整数？答：把它想为小数更准确。当然目前我们内部的PR计算比toolbar显示的0－10要长的多。问：我需要知道这个吗？我知道PR能告诉我什么，我为什么要在乎？也就是说对普通网站来说，PR有什么目的？答：我想这

Public @ 2012-12-27 15:39:04

PageRank（PR值）

威海链接原理威海PR
682

PageRank是沉迷Google的人们用来测验其站点在Google中的排名的一种衡量规范，SEO和查找引擎营销（SEM）专家也运用这个术语描绘网页在SERP中的排名以及Google依据排名算法给予站点的分数，无论怎么界说，PageRank都是SEO的重要部分。

Public @ 2010-02-23 15:39:10

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[ DB ] CONNECT:[ UseTime:0.022831s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.016664s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.015396s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.016188s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.015237s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_hook', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 3, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016365s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 1566 LIMIT 1 [ RunTime:0.015373s ]
[ 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:0.015604s ]
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[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.015814s ]
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[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.015960s ]
[ 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 temporary; Using filesort', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 1566 LIMIT 1 [ RunTime:0.015238s ]
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[ SQL ] update `ob_article` set views=views+2 where id=1566 [ RunTime:0.019065s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海链接原理' AND `status` <> -1 LIMIT 1 [ RunTime:0.022655s ]
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[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海链接原理' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.042512s ]
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[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海PR' AND `status` <> -1 LIMIT 1 [ RunTime:0.025441s ]
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