bp神经网络算法的java实现（原创）：
本程序为原创，实现改进的bp神经网络（动量因子），包含3个java文件，使用简单。-bp neural network algorithm to achieve the java (original): The original procedure to achieve improved bp neural network (momentum factor), contains 3 java files, using a simple.
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ann Layer.java Nnetwork.java Node.java www.pudn.com.txt
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001085s ]
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:0.062437s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001047s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001161s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001025s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003190s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000776s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003763s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018719s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002825s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 45987 [ RunTime:0.024810s ]
