svm文本分类改进,关键词抽取（Keywords Extraction）指的是如何从一篇文档（或多篇相关文档）中自动抽取出能很好地代表文档主题的若干个词或短语。-Improvement of SVM text classification, keyword extraction (Keywords Extraction) refers to how a document (or more related documents) automatically extracted to represent the theme of a number of documents a word or phrase.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001051s ]
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:0.073052s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000979s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001259s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001118s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003103s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000937s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003694s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017306s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001253s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 212794 [ RunTime:0.013766s ]
