void valid_go(char *cfgfile, char *weightfile, int multi)
{
srand(time(0));
char *base = basecfg(cfgfile);
printf("%s\n", base);
network net = parse_network_cfg(cfgfile);
if(weightfile){
load_weights(&net, weightfile);
}
set_batch_network(&net, 1);
printf("Learning Rate: %g, Momentum: %g, Decay: %g\n", net.learning_rate, net.momentum, net.decay);
float *board = calloc(19*19, sizeof(float));
float *move = calloc(19*19, sizeof(float));
moves m = load_go_moves("/home/pjreddie/backup/go.test");
int N = m.n;
int i;
int correct = 0;
for(i = 0; i <N; ++i){
char *b = m.data[i];
int row = b[0];
int col = b[1];
int truth = col + 19*row;
string_to_board(b+2, board);
predict_move(net, board, move, multi);
int index = max_index(move, 19*19);
if(index == truth) ++correct;
printf("%d Accuracy %f\n", i, (float) correct/(i+1));
}
}
void train_go(char *cfgfile, char *weightfile)
{
data_seed = time(0);
srand(time(0));
float avg_loss = -1;
char *base = basecfg(cfgfile);
printf("%s\n", base);
network net = parse_network_cfg(cfgfile);
if(weightfile){
load_weights(&net, weightfile);
}
printf("Learning Rate: %g, Momentum: %g, Decay: %g\n", net.learning_rate, net.momentum, net.decay);
char *backup_directory = "/home/pjreddie/backup/";
char buff[256];
float *board = calloc(19*19*net.batch, sizeof(float));
float *move = calloc(19*19*net.batch, sizeof(float));
moves m = load_go_moves("/home/pjreddie/go.train");
//moves m = load_go_moves("games.txt");
int N = m.n;
int epoch = (*net.seen)/N;
while(get_current_batch(net) < net.max_batches || net.max_batches == 0){
clock_t time=clock();
random_go_moves(m, board, move, net.batch);
float loss = train_network_datum(net, board, move) / net.batch;
if(avg_loss == -1) avg_loss = loss;
avg_loss = avg_loss*.95 + loss*.05;
printf("%d, %.3f: %f, %f avg, %f rate, %lf seconds, %d images\n", get_current_batch(net), (float)(*net.seen)/N, loss, avg_loss, get_current_rate(net), sec(clock()-time), *net.seen);
if(*net.seen/N > epoch){
epoch = *net.seen/N;
char buff[256];
sprintf(buff, "%s/%s_%d.weights", backup_directory,base, epoch);
save_weights(net, buff);
}
if(get_current_batch(net)%100 == 0){
char buff[256];
sprintf(buff, "%s/%s.backup",backup_directory,base);
save_weights(net, buff);
}
if(get_current_batch(net)%10000 == 0){
char buff[256];
sprintf(buff, "%s/%s_%d.backup",backup_directory,base,get_current_batch(net));
save_weights(net, buff);
}
}
sprintf(buff, "%s/%s.weights", backup_directory, base);
save_weights(net, buff);
free_network(net);
free(base);
}
