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y_nnn learn_to_drive: try to minimise no change action! search optimal params

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fanasina
2025-11-25 15:06:48 +01:00
parent 35c6868d29
commit 3daabbe634
5 changed files with 148 additions and 36 deletions
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deepQlearn_0/src/deepQlearning/learn_to_drive.c
+36 -8
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@@ -79,7 +79,9 @@ struct networks_qlearning * create_nework_qlearning(
qnets->thread_learn = NULL;
for(int i=0;i<COUNT_ACTION;++i){
qnets->nb_successive_action[i]=0;
}
return qnets;
@@ -162,7 +164,7 @@ struct qlearning_params * create_qlearning_params (
qparams->factor_update_learning_rate = 0.995;
qparams->minimum_threshold_learning_rate = 0.0001 ;
qparams->factor_update_exploration_factor = 0.995;
qparams->factor_update_exploration_factor = 0.9995 /*0.995*/;
qparams->minimum_threshold_exploration_factor = 0.01;
// qparams->threshold_number_same_action = 500;
@@ -244,6 +246,8 @@ void free_RL_agent(struct RL_agent *rlAgent){
free(rlAgent);
}
#define ACCEPTABLE_REWARD 1000
void train_qlearning(struct RL_agent * rlAgent,
int action //, long reward
){
@@ -275,18 +279,19 @@ void train_qlearning(struct RL_agent * rlAgent,
ttmp = ttmp->prev_layer;
}
// ***
float new_value = ( (net_main->learning_rate < qlParams->minimum_threshold_learning_rate /*0.0001*/) ? net_main->learning_rate :(net_main->learning_rate ) * qlParams->factor_update_learning_rate /*0.995*/ );
UPDATE_ATTRIBUTE_NEURONE_IN_ALL_LAYERS(TYPE_FLOAT, net_main, learning_rate, new_value);
qlParams->exploration_factor = (qlParams->exploration_factor < qlParams->minimum_threshold_exploration_factor) ? qlParams->exploration_factor : qlParams->exploration_factor * qlParams->factor_update_exploration_factor ;
// ***
if(car_status->cumulative_reward > ACCEPTABLE_REWARD){
float new_value = ( (net_main->learning_rate < qlParams->minimum_threshold_learning_rate /*0.0001*/) ? net_main->learning_rate :(net_main->learning_rate ) * qlParams->factor_update_learning_rate /*0.995*/ );
UPDATE_ATTRIBUTE_NEURONE_IN_ALL_LAYERS(TYPE_FLOAT, net_main, learning_rate, new_value);
qlParams->exploration_factor = (qlParams->exploration_factor < qlParams->minimum_threshold_exploration_factor) ? qlParams->exploration_factor : qlParams->exploration_factor * qlParams->factor_update_exploration_factor ;
}
// free_tensor_TYPE_FLOAT(action_value);
// free_tensor_TYPE_FLOAT(next_action_value);
free_tensor_TYPE_FLOAT(experimental_values);
}
#define MAX_SUCCESSIVE_ACTION 200
int select_action(struct RL_agent * rlAgent){
//static size_t explore = 0;
int action;
@@ -305,6 +310,17 @@ int select_action(struct RL_agent * rlAgent){
float proba_explor = (float) (xrand() % ((1<<17) -1))/ ((1<<17) -1); //frand(); //(float)(random ) / randRange;
if(proba_explor > rlAgent->qlearnParams->exploration_factor ){
action = ARG_MAX_ARRAY_TYPE_FLOAT( action_value->x, action_value->dim->rank );
//printf(" STRATEGY : action : %d , factor : %f nb_episodes : %ld \n",action,rlAgent->qlearnParams->exploration_factor, rlAgent->status->nb_episodes);
if(rlAgent->networks->nb_successive_action[action]>MAX_SUCCESSIVE_ACTION){
rlAgent->networks->nb_successive_action[action]=0;
int recAction=action;
while(action==recAction){
action = xrand() % action_value->dim->rank ;
//printf("debug: action=%d recAction=%d\n",action, recAction);
}
write(1,"#",1);
}
////else write(1,".",1);
//if(action == ARG_MIN_ARRAY_TYPE_FLOAT( action_value->x, action_value->dim->rank ))
//action = xrand() % action_value->dim->rank ;
}
@@ -312,7 +328,15 @@ int select_action(struct RL_agent * rlAgent){
action = xrand() % action_value->dim->rank ;
// explore++;
//printf(" EXPLORE :%ld, action : %d , factor : %f nb_episodes : %ld \n",explore,action,rlAgent->qlearnParams->exploration_factor, rlAgent->status->nb_episodes);
//printf(" EXPLORE : action : %d , factor : %f nb_episodes : %ld \n",action,rlAgent->qlearnParams->exploration_factor, rlAgent->status->nb_episodes);
////write(1,"*",1);
}
for(int a=0;a<COUNT_ACTION;++a){
if(a!=action)
rlAgent->networks->nb_successive_action[a]=0;
}
(rlAgent->networks->nb_successive_action[action])++;
/*
if(rlAgent->status->last_action == action){
++(rlAgent->status->count_last_action);
@@ -445,6 +469,9 @@ void* learn_to_drive(void * lrnarg){
//push_back_list_TYPE_L_INT(qlStatus->list_main_cumul, car_status->cumulative_reward);
// printf(" cumul : %ld ", car_status->cumulative_reward);
if(car_status->cumulative_reward > qlStatus->progress_best_cumul->end_list->value){
int len_cumul=0;
char cumulSTR[128];
len_cumul=sprintf(cumulSTR, " %ld ", car_status->cumulative_reward);
push_back_list_TYPE_L_INT(qlStatus->progress_best_cumul, car_status->cumulative_reward);
char *file = fileNameDateScore(".ff_learnDir/.ff_main_",".txt",car_status->cumulative_reward);
@@ -455,6 +482,7 @@ void* learn_to_drive(void * lrnarg){
//fprintf(stderr,"debug: symlink %s with %s. explain:%s \n",main_symlink, file, explain_symlink(file, main_symlink) );
}
else write(1,":",1);
write(1,cumulSTR,len_cumul);
free(file);
file = fileNameDateScore(".ff_learnDir/.ff_target_",".txt",car_status->cumulative_reward);
EXPORT_TO_FILE_TENSOR_ATTRIBUTE_IN_NNEURONS(TYPE_FLOAT, rlAgent->networks->target_net ,weight_in, file);