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网页快照(Cache)

威海seo术语威海网页快照
2091

查找引擎数据库中心记载的页面内容复制，查找引擎在成果中给出“网页快照”（或其他类似称号）链接后，用户点击后看到的就是查找引擎数据库中的页面内容，用户由于某种原因不能拜访原始网页时，可以检查网页快照里的内容作为参阅（依照人和依照查找引擎蜘蛛程序）以及他们所拜访的网页数量

Public @ 2017-02-06 15:34:32

相关性（relevance）

威海seo术语威海相关性
2284

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

XML（extensibleMarkupLanguage）

威海seo术语威海XML
2337

可扩展符号言语的缩写，一种符号言语的规范和HTML相类似答应标签被界说来描绘任何品种的数据，使得它作为数据源十分盛行。

Public @ 2014-02-27 15:51:54

百度快照为什么会更新？

百度快照会更新是因为搜索引擎会定期抓取并更新网页的内容，当网页的内容发生了变化，搜索引擎会更新快照以反映最新的页面信息。同时，搜索引擎也会根据网页的更新频率和重要性等因素，对网页进行不同频率的抓取和更新，这也会影响到快照的更新。另外，如果网站使用了网站地图、RSS订阅等技术，也能够促进快照的更新。

Public @ 2023-04-04 18:00:10

网页快照(Cache)

威海seo术语威海网页快照
2093

查找引擎数据库中心记载的页面内容复制，查找引擎在成果中给出“网页快照”（或其他类似称号）链接后，用户点击后看到的就是查找引擎数据库中的页面内容，用户由于某种原因不能拜访原始网页时，可以检查网页快照里的内容作为参阅（依照人和依照查找引擎蜘蛛程序）以及他们所拜访的网页数量

Public @ 2017-02-06 15:34:32

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[ DB ] CONNECT:[ UseTime:0.022566s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016326s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 1105 LIMIT 1 [ RunTime:0.015222s ]
[ 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:0.015691s ]
[ 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:0.016027s ]
[ 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:0.016719s ]
[ 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` = 1105 LIMIT 1 [ RunTime:0.015286s ]
[ 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=1105 [ RunTime:0.016086s ]
[ 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:0.022451s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, '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:0.032547s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海网页快照' AND `status` <> -1 LIMIT 1 [ RunTime:0.022727s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海网页快照' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.031718s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

0.444826s

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