ti－idf算法，实现对英文文档的检索，把多篇文档中的词（英文单词），按照权值从小到大进行排列-ti-idf algorithm, the realization of the English document retrieval, to document more than words (English words), in accordance with the right values to be ranked from small to large
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002867s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.096445s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002755s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002387s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003782s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002436s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.019942s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003121s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 316749 [ RunTime:0.001352s ]
