模式识别中的几个常用算法，包括ISODATA算法、K－均值算法、感知器算法、LMSE最小误差、贝耶斯分类。-pattern_recognition have some usual algorithm,including ISODATA algorithm,K-means algorithm,apperceive algorithm ,
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001796s ]
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:0.107529s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001227s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001194s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003570s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001022s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014510s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001253s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 320326 [ RunTime:0.002180s ]
