//**********************
//?Deep?Learning?and?Applications
//?Piji?Li
//?lipiji.sdu@gmail.com
//?http://www.zhizhihu.com
//*********************/

#include?
#include?“deep.h“
#include?“timer.h“


double?sample_from_gaussian（double?miu?double?sigma）
{
????//std::default_random_engine?generator;
????//std::normal_distribution?distribution（miu?sigma）;
????//reutrn?distribution（generator）;

????static?double?V1?V2?S;
????static?int?phase?=?0;
????double?X;

????if?（phase?==?0）
????{
????????do
????????{
????????????double?U1?=?（double）rand（）?/?RAND_MAX;
????????????double?U2?=?（double）rand（）?/?RAND_MAX;

????????????V1?=?2?*?U1?-?1;
????????????V2?=?2?*?U2?-?1;
????????????S?=?V1?*?V1?+?V2?*?V2;
????????}?while（S?>=?1?||?S?==?0）;

????????X?=?V1?*?sqrt（-2?*?log（S）?/?S）;
????}?else
????????X?=?V2?*?sqrt（-2?*?log（S）?/?S）;

????phase?=?1?-?phase;

????return?X?*?sigma?+?miu;
}

double?sigmoid（double?x）?
{
????return?1.0?/?（1.0?+?exp（-x））;
}

int?binomial（int?n?double?p）?
{
????if（p??1）?return?0;

????int?c?=?0;
????double?r;

????for（int?i=0;?i	{
????????r?=?rand（）?/?（RAND_MAX?+?1.0）;
????????if?（r?????}

????return?c;
}

double?square_error（double?*v1?double?*v2?int?size）
{
????double?error?=?0;
	for?（int?i?=?0;?i?	{
		error?+=?pow（（v1[i]?-?v2[i]）?2）;
	}
????return?error;
}

int?max_i_（double?*x?int?l）
{
????double?max_v?=?x[0];
????double?max_i?=?0;
????for（int?i=0;?i????{
????????if（x[i]?>?max_v）
????????{
????????????max_v?=?x[i];
????????????max_i?=?i;
????????}
????}
????return?max_i;
}


Conf::Conf（string?ftx?string?fty?int?epc?int?bs?int?*hls?int?k?double?lr?int?n_ly?int?n_lb?double?lbd）
{
????f_train_x?=?ftx;
????f_train_y?=?fty;
????epoch?=?epc;
????batch_size?=?bs;
????hidden_layer_size?=?hls;
????cd_k?=?k;
????learning_rate?=?lr;
????n_layers?=?n_ly;
????n_labels?=?n_lb;
????lamda?=?lbd;
}
Conf::~Conf（）{}
Dataset::Dataset（Conf?conf）
{

????N?=?0;
????n_f?=?0;
????batch_index?=?0;

????if（conf.batch_size?>=?0）
????{
????????int?Nx?=?0;
????????int?Ny?=?0;
????????int?Nf?=?0;?//?dim?of?x

????????//read?the?label?file
????????ifstream?fin_y（conf.f_train_y.c_str（））;
????????if（!fin_y）?
????????{???
????????????cout?<????????????exit（-1）;
????????}
????????else
????????{
????????????string?s;
????????????while（getline（fin_y?s））
????????????{	
????????????????Y.push_back（atof（s.c_str（）））;
????????????????if（conf.batch_size?>?0?&&?Ny?>=?conf.batch_size）
????????????????????break;
????????????????++Ny;
????????????}
????????}
????????fin_y.close（）;

????????//?read?the?x?file
????????ifstream?fin_x（conf.f_train_x.c_str（））;
????????if（!fin_x）?
????????{???
????????????cout?<????????????exit（-1）;
????????}
????????else
????????{
????????????string?s;
????????????while（getline（fin_x?s））
????????????{	
????????????????Nf?=?0;
????????????????vec

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???24422706??2013-09-02?16:11??DeepLearning_DBN\data\test_x.txt

?????文件??????20000??2013-09-02?16:09??DeepLearning_DBN\data\test_y.txt

?????文件??146251039??2013-06-24?20:43??DeepLearning_DBN\data\train_x.txt

?????文件?????180000??2013-09-02?16:11??DeepLearning_DBN\data\train_y.txt

?????文件????????120??2013-09-23?10:03??DeepLearning_DBN\data\x.txt

?????文件?????????12??2013-09-12?22:19??DeepLearning_DBN\data\y.txt

?????文件??????23007??2015-05-20?22:26??DeepLearning_DBN\DeepLearning_DBN\deep.cpp

?????文件???????2125??2015-04-15?07:43??DeepLearning_DBN\DeepLearning_DBN\deep.h

?????文件???????2190??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\DeepLearning_DBN.log

?????文件???????3322??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\DeepLearning_DBN.tlog\cl.command.1.tlog

?????文件??????61956??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\DeepLearning_DBN.tlog\CL.read.1.tlog

?????文件???????3860??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\DeepLearning_DBN.tlog\CL.write.1.tlog

?????文件????????211??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\DeepLearning_DBN.tlog\DeepLearning_DBN.lastbuildstate

?????文件??????????0??2015-05-20?07:24??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\DeepLearning_DBN.tlog\unsuccessfulbuild

?????文件?????394733??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\train.obj

?????文件?????928768??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\vc120.idb

?????文件?????520192??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\vc120.pdb

?????文件???????7363??2015-05-20?22:11??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN.vcxproj

?????文件???????1342??2015-05-20?22:11??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN.vcxproj.filters

?????文件???34537472??2015-05-21?07:24??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN.sdf

?????文件???????1348??2015-05-20?20:40??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN.sln

????..A..H.?????44544??2015-05-21?07:24??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN.v12.suo

?????文件????????149??2015-04-15?07:43??DeepLearning_DBN\DeepLearning_DBN\predict.cpp

?????文件???????3714??2015-05-21?06:05??DeepLearning_DBN\DeepLearning_DBN\train.cpp

????.......??????2652??2015-04-15?07:43??DeepLearning_DBN\include\cmat\cmat.h

????.......??????1958??2015-04-15?07:43??DeepLearning_DBN\include\cmat\cmat_armadillo_openblas.h

????.......???????461??2015-04-15?07:43??DeepLearning_DBN\Makefile

????.......???????413??2015-04-15?07:43??DeepLearning_DBN\readme.txt

????.......????????18??2015-04-15?07:43??DeepLearning_DBN\run.sh

?????目錄??????????0??2015-05-21?06:04??DeepLearning_DBN\DeepLearning_DBN\DeepLearning_DBN\Debug\DeepLearning_DBN.tlog

............此處省略73個文件信息