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alexa排名

威海seo术语威海alexa排名
3817

Alexa是一家专门发布网站世界排名的网站。以查找引擎发家的Alexa创建于1996年4月(美国)，意图是让互联网网友在共享虚拟世界资源的一起，更多地参加互联网资源的安排。Alexa每天在网上收集超越1,000GB的信息，不只给出多达几十亿的网址链接，而且为其间的每一个网站进行了排名。可以说，Alexa是当前具有URL数量最庞大，排名信息发布最翔实的网站。

Public @ 2010-02-24 15:51:38

链接（link）

威海seo术语威海链接
2558

链接也称超级链接，是指从一个网页指向一个政策的衔接联系，所指向的政策可以是另一个网页，也可以是相同网页上的不同方位，还可以是图片、电子邮件地址、文件、乃至是使用程序。

Public @ 2018-02-04 15:51:30

相关性（relevance）

威海seo术语威海相关性
2654

相关性指的是事物之间的关联程度或相似程度。在信息检索中，相关性通常描述了查询与搜索结果之间的匹配程度或相关性程度。一般来说，相关性越高，搜索结果越符合查询的意图，而反之则越不相关。相关性的评估通常由算法和模型来实现，例如TF-IDF、BM25等算法。

Public @ 2023-06-15 15:00:08

Alexa排名的困惑

威海seo专题威海alexa排名
2119

大概因为最近做了这个中文博客，这几个月收到比较多的中文垃圾邮件。其中经常让我困惑的是推销所谓Alexa排名服务。去Google搜索了一下，提供这种服务的还真不少，有的号称能把网站做进Alexa排名前一百名，有的说前一万名，再靠后的还不做了。Alexa排名是根据装了Alexa工具条的电脑访问某网站的次数所得出来的网站流量排名。这些Alexa排名服务所提供的基本上都是通过作弊手段使你网站Alexa排名

Public @ 2011-07-07 16:14:07

alexa排名

威海seo术语威海alexa排名
3819

Alexa是一家专门发布网站世界排名的网站。以查找引擎发家的Alexa创建于1996年4月(美国)，意图是让互联网网友在共享虚拟世界资源的一起，更多地参加互联网资源的安排。Alexa每天在网上收集超越1,000GB的信息，不只给出多达几十亿的网址链接，而且为其间的每一个网站进行了排名。可以说，Alexa是当前具有URL数量最庞大，排名信息发布最翔实的网站。

Public @ 2010-02-24 15:51:38

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.024499s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.017459s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.016301s ]
[ 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:0.017486s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 2678 LIMIT 1 [ RunTime:0.016453s ]
[ 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:0.016709s ]
[ 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:0.016932s ]
[ 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 rand() limit 30 [ RunTime:0.016908s ]
[ 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` = 2678 LIMIT 1 [ RunTime:0.016428s ]
[ 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 ] update `ob_article` set views=views+2 where id=2678 [ RunTime:0.019148s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海seo术语' AND `status` <> -1 LIMIT 1 [ RunTime:0.023740s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海seo术语' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.035869s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海alexa排名' AND `status` <> -1 LIMIT 1 [ RunTime:0.023741s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海alexa排名' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.035583s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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