def train(self,
no_scenarios,
print_log,
plot_graphs,
save_graphs,
collect_comparison=True):
# Stats is the Dictionary of this object which has various useful fields mentioned below
stats = {
'scenarios': [],
'rewards': [],
'durations': [],
'detected': [],
'missed': [],
'ttf': [],
'napfd': [],
'recall': [],
'avg_precision': [],
'result': [],
'step': [],
'env':
self.scenario_provider.name,
'agent':
self.agent.name,
# 'action_size': self.agent.action_size,
'history_length':
self.agent.histlen,
'rewardfun':
self.reward_function.__name__,
'sched_time':
self.scenario_provider.avail_time_ratio,
'hidden_size':
'x'.join(str(x) for x in self.agent.hidden_size) if hasattr(
self.agent, 'hidden_size') else 0
}
if collect_comparison:
cmp_agents = {
'heur_sort': agents.HeuristicSortAgent(self.agent.histlen),
'heur_weight': agents.HeuristicWeightAgent(self.agent.histlen),
'heur_random': agents.RandomAgent(self.agent.histlen)
}
stats['comparison'] = {}
# stats['comparison']['heur_sort/heur_weight/rand'] initialized for comparison
for key in cmp_agents.keys():
stats['comparison'][key] = {
'detected': [],
'missed': [],
'ttf': [],
'napfd': [],
'recall': [],
'avg_precision': [],
'durations': []
}
sum_actions = 0
sum_scenarios = 0
sum_detected = 0
sum_missed = 0
sum_reward = 0
# Enumerate forms a tuple of (count,Element)
# write_file.write("Agent is "+str(self.agent))
for (i, sc) in enumerate(self.scenario_provider, start=1):
if i > no_scenarios:
break
start = time.time()
if print_log:
print('ep %d:\tscenario %s\t' % (sum_scenarios + 1, sc.name),
end='')
(result, reward) = self.process_scenario(sc)
end = time.time()
# Statistics of the CI cycle after Prioritization and Selection of test cases from the test suite
sum_detected += result[0]
sum_missed += result[1]
# In future if we want to include the priority of the test cases also, np.average() could be used, where weights can be adjusted depending
# upon the priority of the test cases
sum_reward += np.mean(reward)
sum_actions += 1
sum_scenarios += 1
duration = end - start
stats['scenarios'].append(sc.name)
stats['rewards'].append(np.mean(reward))
stats['durations'].append(duration)
stats['detected'].append(result[0])
stats['missed'].append(result[1])
## TTF is the time to failure or in simple words, it is the position at which the first test case that failed was placed by our algorithm
stats['ttf'].append(result[2])
stats['napfd'].append(result[3])
stats['recall'].append(result[4])
stats['avg_precision'].append(result[5])
stats['result'].append(result)
stats['step'].append(sum_scenarios)
if print_log:
print(
' finished, reward: %.2f,\trunning mean: %.4f,\tduration: %.1f,\tresult: %s'
% (np.mean(reward), sum_reward / sum_scenarios, duration,
result))
global total_failures_detected
global total_failures_missed
total_failures_detected += result[0]
total_failures_missed += result[1]
# Collect Comparison becomes True if we set args.comparable as True
## Formulates the results of the heur_sort, heur_random and heur_weight .
if collect_comparison:
for key in stats['comparison'].keys():
start = time.time()
cmp_res = process_scenario(cmp_agents[key], sc,
preprocess_discrete)
end = time.time()
stats['comparison'][key]['detected'].append(cmp_res[0])
stats['comparison'][key]['missed'].append(cmp_res[1])
stats['comparison'][key]['ttf'].append(cmp_res[2])
stats['comparison'][key]['napfd'].append(cmp_res[3])
stats['comparison'][key]['recall'].append(cmp_res[4])
stats['comparison'][key]['avg_precision'].append(
cmp_res[5])
stats['comparison'][key]['durations'].append(end - start)
# # Data Dumping
## The below two commented lines of code write the stats into the file after certain interval. No specific need of this, because anyways, we are writing the entire stats
## at the end of the program
# if self.dump_interval > 0 and sum_scenarios % self.dump_interval == 0:
# pickle.dump(stats, open(self.stats_file + '.p', 'wb'))
if self.validation_interval > 0 and (
sum_scenarios == 1
or sum_scenarios % self.validation_interval == 0):
if print_log:
print('ep %d:\tRun test... ' % sum_scenarios, end='')
self.run_validation(sum_scenarios)
pickle.dump(self.validation_res,
open(self.val_file + '.p', 'wb'))
if print_log:
print('done')
## Dumping the Stats of all the CI Cycles into the Stats_File
if self.dump_interval > 0:
self.agent.save(self.agent_file)
pickle.dump(stats, open(self.stats_file + '.p', 'wb'))
## Plotting Graphs
if plot_graphs:
plot_stats.plot_stats_single_figure(self.file_prefix,
self.stats_file + '.p',
self.val_file + '.p',
1,
plot_graphs=plot_graphs,
save_graphs=save_graphs)
## Save the generated Graphs
if save_graphs:
plot_stats.plot_stats_separate_figures(self.file_prefix,
self.stats_file + '.p',
self.val_file + '.p',
1,
plot_graphs=False,
save_graphs=save_graphs)
return np.mean(stats['napfd']), np.mean(stats['recall'])
def train(self, no_scenarios, print_log, plot_graphs, save_graphs, collect_comparison=False):
stats = {
'scenarios': [],
'rewards': [],
'durations': [],
'detected': [],
'missed': [],
'ttf': [],
'napfd': [],
'recall': [],
'avg_precision': [],
'result': [],
'step': [],
'env': self.scenario_provider.name,
'agent': self.agent.name,
'action_size': self.agent.action_size,
'history_length': self.agent.histlen,
'rewardfun': self.reward_function.__name__,
'sched_time': self.scenario_provider.avail_time_ratio,
'hidden_size': 'x'.join(str(x) for x in self.agent.hidden_size) if hasattr(self.agent, 'hidden_size') else 0
}
if collect_comparison:
cmp_agents = {
'heur_sort': agents.HeuristicSortAgent(self.agent.histlen),
'heur_weight': agents.HeuristicWeightAgent(self.agent.histlen),
'heur_random': agents.RandomAgent(self.agent.histlen)
}
stats['comparison'] = {}
for key in cmp_agents.keys():
stats['comparison'][key] = {
'detected': [],
'missed': [],
'ttf': [],
'napfd': [],
'recall': [],
'avg_precision': [],
'durations': []
}
sum_actions = 0
sum_scenarios = 0
sum_detected = 0
sum_missed = 0
sum_reward = 0
for (i, sc) in enumerate(self.scenario_provider, start=1):
if i > no_scenarios:
break
start = time.time()
if print_log:
print('ep %d:\tscenario %s\t' % (sum_scenarios + 1, sc.name), end='')
(result, reward) = self.process_scenario(sc)
end = time.time()
# Statistics
sum_detected += result[0]
sum_missed += result[1]
sum_reward += np.mean(reward)
sum_actions += 1
sum_scenarios += 1
duration = end - start
stats['scenarios'].append(sc.name)
stats['rewards'].append(np.mean(reward))
stats['durations'].append(duration)
stats['detected'].append(result[0])
stats['missed'].append(result[1])
stats['ttf'].append(result[2])
stats['napfd'].append(result[3])
stats['recall'].append(result[4])
stats['avg_precision'].append(result[5])
stats['result'].append(result)
stats['step'].append(sum_scenarios)
if print_log:
print(' finished, reward: %.2f,\trunning mean: %.4f,\tduration: %.1f,\tresult: %s' %
(np.mean(reward), sum_reward / sum_scenarios, duration, result))
if collect_comparison:
for key in stats['comparison'].keys():
start = time.time()
cmp_res = process_scenario(cmp_agents[key], sc, preprocess_discrete)
end = time.time()
stats['comparison'][key]['detected'].append(cmp_res[0])
stats['comparison'][key]['missed'].append(cmp_res[1])
stats['comparison'][key]['ttf'].append(cmp_res[2])
stats['comparison'][key]['napfd'].append(cmp_res[3])
stats['comparison'][key]['recall'].append(cmp_res[4])
stats['comparison'][key]['avg_precision'].append(cmp_res[5])
stats['comparison'][key]['durations'].append(end - start)
# Data Dumping
if self.dump_interval > 0 and sum_scenarios % self.dump_interval == 0:
pickle.dump(stats, open(self.stats_file + '.p', 'wb'))
if self.validation_interval > 0 and (sum_scenarios == 1 or sum_scenarios % self.validation_interval == 0):
if print_log:
print('ep %d:\tRun test... ' % sum_scenarios, end='')
self.run_validation(sum_scenarios)
pickle.dump(self.validation_res, open(self.val_file + '.p', 'wb'))
if print_log:
print('done')
if self.dump_interval > 0:
self.agent.save(self.agent_file)
pickle.dump(stats, open(self.stats_file + '.p', 'wb'))
if plot_graphs:
plot_stats.plot_stats_single_figure(self.file_prefix, self.stats_file + '.p', self.val_file + '.p', 1,
plot_graphs=plot_graphs, save_graphs=save_graphs)
if save_graphs:
plot_stats.plot_stats_separate_figures(self.file_prefix, self.stats_file + '.p', self.val_file + '.p', 1,
plot_graphs=False, save_graphs=save_graphs)
return np.mean(stats['napfd'])