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TF-IDF分词加权算法有用吗？

威海seo问答威海seo问答
2037

TF-IDF分词加权算法是一种文本处理技术，是根据文档的大小，词频和文档的频率来给词语加权。对文本内容的理解和分析有很大帮助，所以是有用的。

Public @ 2023-02-24 12:24:08

内容联盟会导致自己的网站收录下降吗？

威海seo问答威海网站收录
1539

由于搜索引擎越来越智能化,内容联盟无疑是将一份内容复制给多个网站,这正是搜索引擎不认可的. 如果您网站的内容在网络上已经被重复千百遍，你的内容可能不会被搜索引擎收录，这也是为什么很多站长反映自己网站不被收录或收录减少的原因之一。

Public @ 2015-12-09 15:27:31

网站做了301多长时间生效？

正常情况，如果只做单纯的301重定向，不做其他的操作，一般生效时间是7天以上，基本不会完全生效！想要完全生效，还需要在百度资源平台上进行：网站改版提交，只有‘完成改版’才会基本上完全生效，如果是：失败、部分改版成功，都无法做到完全生效，显示的结果也是天差地别的。来源：A5营销

Public @ 2015-10-16 16:05:00

如何回答老板的提问：为什么今天没有订单？

威海seo问答威海seo问答
2413

作为员工或者销售人员，你可以这样回答老板的提问：“今天虽然没有订单，但是我已经采取了措施，并且和潜在客户建立了联系。我将会继续努力争取接到他们的订单。也许我们需要重新审视我们的市场营销策略或产品的需求，以促进销售和订单的增长。”

Public @ 2023-06-23 04:50:06

Q：网站上很多404 ，会影响整站么？

威海seo问答威海seo问答
2663

Q：网站上很多404 ，会影响整站么？A：会对网站的搜索评价有影响，需要站点在站长平台提交死链来源：百度搜索资源平台百度搜索学堂

Public @ 2016-07-28 15:27:28

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[ DB ] CONNECT:[ UseTime:0.021627s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016059s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 5661 LIMIT 1 [ RunTime:0.014680s ]
[ 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:0.014845s ]
[ 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:0.015123s ]
[ 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:0.015531s ]
[ 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` = 5661 LIMIT 1 [ RunTime:0.014589s ]
[ 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+1 where id=5661 [ RunTime:0.015365s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海seo问答' AND `status` <> -1 LIMIT 1 [ RunTime:0.021317s ]
[ 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问答' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.035093s ]
[ 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seo问答' AND `status` <> -1 LIMIT 1 [ RunTime:0.021216s ]
[ 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seo问答' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.034583s ]
[ 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', ) ]

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