def apply_auto_filter(log, parameters=None):
"""
Apply some filters in battery to the log_skeleton in order to get a simplified log_skeleton
Parameters
----------
log
Log
parameters
Eventual parameters applied to the algorithms:
Parameters.DECREASING_FACTOR -> Decreasing factor (provided to all algorithms)
Parameters.ACTIVITY_KEY -> Activity key (must be specified if different from concept:name)
Returns
---------
filtered_log
Filtered log_skeleton
"""
# the following filters are applied:
# - activity filter (keep only attributes with a reasonable number of occurrences) (if enabled)
# - variant filter (keep only variants with a reasonable number of occurrences) (if enabled)
# - start attributes filter (keep only variants that starts with a plausible start activity) (if enabled)
# - end attributes filter (keep only variants that starts with a plausible end activity) (if enabled)
if parameters is None:
parameters = {}
enable_activities_filter = exec_utils.get_param_value(Parameters.ENABLE_ACTIVITES_FILTER, parameters, True)
enable_variants_filter = exec_utils.get_param_value(Parameters.ENABLE_VARIANTS_FILTER, parameters, False)
enable_start_activities_filter = exec_utils.get_param_value(Parameters.ENABLE_START_ACTIVITIES_FILTER, parameters,
False)
enable_end_activities_filter = exec_utils.get_param_value(Parameters.ENABLE_END_ACTIVITIES_FILTER, parameters, True)
attribute_key = exec_utils.get_param_value(Parameters.ATTRIBUTE_KEY, parameters, xes.DEFAULT_NAME_KEY)
parameters[Parameters.ATTRIBUTE_KEY] = attribute_key
parameters[Parameters.ACTIVITY_KEY] = attribute_key
variants = variants_module.get_variants(log, parameters=parameters)
filtered_log = log
if enable_activities_filter:
filtered_log = attributes_filter.apply_auto_filter(log, variants=variants, parameters=parameters)
variants = variants_module.get_variants(filtered_log, parameters=parameters)
if enable_variants_filter:
filtered_log = variants_module.apply_auto_filter(filtered_log, variants=variants, parameters=parameters)
variants = variants_module.get_variants(filtered_log, parameters=parameters)
if enable_start_activities_filter:
filtered_log = start_activities_filter.apply_auto_filter(filtered_log, variants=variants,
parameters=parameters)
if enable_end_activities_filter:
filtered_log = end_activities_filter.apply_auto_filter(filtered_log, variants=variants,
parameters=parameters)
return filtered_log
def get_variants_from_log(log, activity_key, disable_variants=False):
"""
Gets the variants from the log (allow disabling by giving each trace a different variant)
Parameters
-------------
log
Trace log
activity_key
Attribute that is the activity
disable_variants
Boolean value that disable variants
Returns
-------------
variants
Variants contained in the log
"""
if disable_variants:
variants = {}
for trace in log:
variants[str(hash(trace))] = [trace]
return variants
parameters_variants = {
constants.PARAMETER_CONSTANT_ACTIVITY_KEY: activity_key
}
variants = variants_module.get_variants(log,
parameters=parameters_variants)
return variants
def get_variant_statistics(log, parameters=None):
"""
Gets a dictionary whose key is the variant and as value there
is the list of traces that share the variant
Parameters
----------
log
Log
parameters
Parameters of the algorithm, including:
activity_key -> Attribute identifying the activity in the log
max_variants_to_return -> Maximum number of variants to return
variants -> If provided, avoid recalculation of the variants
Returns
----------
variants_list
List of variants along the statistics
"""
if parameters is None:
parameters = {}
max_variants_to_return = parameters["max_variants_to_return"] if "max_variants_to_return" in parameters else None
varnt = parameters["variants"] if "variants" in parameters else variants_filter.get_variants(log,
parameters=parameters)
variants_list = []
for var in varnt:
variants_list.append({"variant": var, "count": len(varnt[var])})
variants_list = sorted(variants_list, key=lambda x: x["count"], reverse=True)
if max_variants_to_return:
variants_list = variants_list[:min(len(variants_list), max_variants_to_return)]
return variants_list
def getaverageduration2(log, logname, logtime):
activities = attributes_filter.get_attribute_values(log, logname)
time = attributes_filter.get_attribute_values(log, logtime)
variants = variants_filter.get_variants(log)
#print('\n',activities,'\n')
#print('\n',time)
#print('\n',variants)
timeList = []
tracelist = []
variantsList = []
activitiesList = []
for trace in activities:
activitiesList.append(trace)
for trace in log:
for event in trace:
timeList.append(str(event[logtime]))
#print (trace,'\n')
for trace in log:
variantsList = []
for event in trace:
variantsList.append(event[logname])
tracelist.append(variantsList)
#print (trace,'\n')
#print('\n',timeList)
#print(tracelist,'........')
duration = []
#start position in timestamp now
#526000 must be replaced
fmt = '%Y-%m-%d %H:%M:%S'
for i, val in enumerate(activitiesList):
count = 0
timeSum = 0
header = 0
for i in range(len(tracelist)):
for j in range(len(tracelist[i])):
if tracelist[i][j] == val and j != len(tracelist[i]) - 1:
end = timeList[header + j + 1][0:19]
start = timeList[header + j][0:19]
ts = dt.datetime.strptime(end, fmt) - dt.datetime.strptime(
start, fmt)
timeSum += int(ts.total_seconds())
count += 1
header = header + len(tracelist[i])
#print(header)
if timeSum == 0:
duration.append(0)
else:
duration.append(timeSum / count)
#print(duration,'line 235')
#print('Here is our list of average duration:','\n',duration,'\n')
#for i in range(len(duration)):
#print('The average duration of activity ',activitiesList[i],' is ',duration[i],' seconds')
return duration
def compute_variant_variability(log):
'''
compute and return the number of variants
input:
log = xes log
output:
number of variants in the log
'''
return (len(variants_filter.get_variants(log)))
def simple_stats(log):
n_traces = len(log)
variants = variants_filter.get_variants(log)
n_unique_traces = len(variants)
ratio_unique_traces_per_trace = n_unique_traces / n_traces
return [n_traces, n_unique_traces, ratio_unique_traces_per_trace]
def apply(log, parameters=None):
"""
Calculates the Working Together metric
Parameters
------------
log
Log
parameters
Possible parameters of the algorithm
Returns
-----------
tuple
Tuple containing the metric matrix and the resources list. Moreover, last boolean indicates that the metric is
not directed.
"""
if parameters is None:
parameters = {}
resource_key = parameters[
constants.
PARAMETER_CONSTANT_RESOURCE_KEY] if constants.PARAMETER_CONSTANT_RESOURCE_KEY in parameters else xes.DEFAULT_RESOURCE_KEY
parameters_variants = {
constants.PARAMETER_CONSTANT_ACTIVITY_KEY: resource_key,
constants.PARAMETER_CONSTANT_ATTRIBUTE_KEY: resource_key
}
variants_occ = {
x: len(y)
for x, y in variants_filter.get_variants(
log, parameters=parameters_variants).items()
}
variants_resources = list(variants_occ.keys())
resources = [x.split(",") for x in variants_resources]
flat_list = sorted(
list(set([item for sublist in resources for item in sublist])))
metric_matrix = numpy.zeros((len(flat_list), len(flat_list)))
for rv in resources:
ord_res_list = sorted(list(set(rv)))
for i in range(len(ord_res_list) - 1):
res_i = flat_list.index(ord_res_list[i])
for j in range(i + 1, len(ord_res_list)):
res_j = flat_list.index(ord_res_list[j])
metric_matrix[res_i, res_j] += float(
variants_occ[",".join(rv)]) / float(len(log))
metric_matrix[res_j, res_i] += float(
variants_occ[",".join(rv)]) / float(len(log))
return (metric_matrix, flat_list, False)
def apply_auto_filter(log, variants=None, parameters=None):
"""
Apply an end attributes filter detecting automatically a percentage
Parameters
----------
log
Log
variants
(If specified) Dictionary with variant as the key and the list of traces as the value
parameters
Parameters of the algorithm, including:
Parameters.DECREASING_FACTOR -> Decreasing factor (stops the algorithm when the next activity by occurrence is below
this factor in comparison to previous)
Parameters.ACTIVITY_KEY -> Attribute key (must be specified if different from concept:name)
Returns
---------
filtered_log
Filtered log
"""
if parameters is None:
parameters = {}
attribute_key = exec_utils.get_param_value(Parameters.ACTIVITY_KEY,
parameters, DEFAULT_NAME_KEY)
decreasing_factor = exec_utils.get_param_value(
Parameters.DECREASING_FACTOR, parameters,
filtering_constants.DECREASING_FACTOR)
if len(log) > 0:
parameters_variants = {PARAMETER_CONSTANT_ACTIVITY_KEY: attribute_key}
if variants is None:
variants = variants_filter.get_variants(
log, parameters=parameters_variants)
vc = variants_filter.get_variants_sorted_by_count(variants)
end_activities = get_end_activities(log,
parameters=parameters_variants)
ealist = end_activities_common.get_sorted_end_activities_list(
end_activities)
eathreshold = end_activities_common.get_end_activities_threshold(
ealist, decreasing_factor)
filtered_log = filter_log_by_end_activities(end_activities, variants,
vc, eathreshold,
attribute_key)
return filtered_log
return log
def apply_auto_filter(log, variants=None, parameters=None):
"""
Apply an end attributes filter detecting automatically a percentage
Parameters
----------
log
Log
variants
(If specified) Dictionary with variant as the key and the list of traces as the value
parameters
Parameters of the algorithm, including:
decreasingFactor -> Decreasing factor (stops the algorithm when the next activity by occurrence is below
this factor in comparison to previous)
attribute_key -> Attribute key (must be specified if different from concept:name)
Returns
---------
filtered_log
Filtered log
"""
if parameters is None:
parameters = {}
attribute_key = parameters[
PARAMETER_CONSTANT_ACTIVITY_KEY] if PARAMETER_CONSTANT_ACTIVITY_KEY in parameters else DEFAULT_NAME_KEY
decreasing_factor = parameters[
"decreasingFactor"] if "decreasingFactor" in parameters else DECREASING_FACTOR
parameters_variants = {
constants.PARAMETER_CONSTANT_ACTIVITY_KEY: attribute_key
}
if variants is None:
variants = variants_filter.get_variants(log,
parameters=parameters_variants)
vc = variants_filter.get_variants_sorted_by_count(variants)
start_activities = get_start_activities(log,
parameters=parameters_variants)
salist = start_activities_common.get_sorted_start_activities_list(
start_activities)
sathreshold = start_activities_common.get_start_activities_threshold(
salist, decreasing_factor)
filtered_log = filter_log_by_start_activities(start_activities, variants,
vc, sathreshold,
attribute_key)
return filtered_log
def log_statistics(logpath):
"""
Extracts log statistics such as #Events, #Cases, #Activities and #Variants, given the path of event log.
Parameters:
logpath (str): Path of event log
Returns:
events (int): Number of events
cases (int): Number of traces
activities (int): Number of activities
variants (int): Number of variants
"""
log = importer.apply(logpath)
log_df = log_converter.apply(log,
variant=log_converter.Variants.TO_DATA_FRAME)
return len(log_df), log_df["case:concept:name"].nunique(
), log_df["concept:name"].nunique(), len(variants_filter.get_variants(log))
def apply_auto_filter(log, variants=None, parameters=None):
"""
Apply an attributes filter detecting automatically a percentage
Parameters
----------
log
Log
variants
(If specified) Dictionary with variant as the key and the list of traces as the value
parameters
Parameters of the algorithm, including:
Parameters.DECREASING_FACTOR -> Decreasing factor (stops the algorithm when the next activity by occurrence is below
this factor in comparison to previous)
Parameters.ATTRIBUTE_KEY -> Attribute key (must be specified if different from concept:name)
Returns
---------
filtered_log
Filtered log_skeleton
"""
if parameters is None:
parameters = {}
attribute_key = exec_utils.get_param_value(Parameters.ATTRIBUTE_KEY,
parameters,
xes.DEFAULT_NAME_KEY)
decreasing_factor = exec_utils.get_param_value(
Parameters.DECREASING_FACTOR, parameters,
filtering_constants.DECREASING_FACTOR)
parameters_variants = {
variants_filter.Parameters.ACTIVITY_KEY: attribute_key
}
if variants is None:
variants = variants_filter.get_variants(log,
parameters=parameters_variants)
vc = variants_filter.get_variants_sorted_by_count(variants)
pths = get_paths_from_log(log, attribute_key=attribute_key)
plist = get_sorted_paths_list(pths)
thresh = get_paths_threshold(plist, decreasing_factor)
filtered_log = filter_log_by_paths(log, pths, variants, vc, thresh,
attribute_key)
return filtered_log
def start_experiments_for_ptml_files(path, file_names_pt, file_name_log, sample_size=None):
logging.disable(logging.CRITICAL)
input_data = []
print("load log")
log = import_log(path + file_name_log)
print("finish loading log")
variants = variants_filter.get_variants(log)
log_variants = EventLog()
for v in variants:
log_variants.append(variants[v][0])
if sample_size:
log_variants = random.sample(log_variants, sample_size)
for ptml_file_name in file_names_pt:
with open(path + ptml_file_name, "rb") as input_file:
pt = pickle.load(input_file)
pt_vis.view(pt_vis.apply(pt, parameters={"format": "svg"}))
pt = process_tree_to_binary_process_tree(pt)
pt_vis.view(pt_vis.apply(pt, parameters={"format": "svg"}))
input_data.append((pt, log_variants))
start_experiments(input_data=input_data)
event.case_id]:
time_granularities[event.case_id] = d
if (args.verbose):
print("Updating time granularity for trace " +
str(event.case_id) + ": " + str(d) +
" seconds. Event " + str(event.activity) + " (" +
str(event.event_id) + ")")
m_time_granularity = statistics.mean(
[time_granularities[case_id] for case_id in time_granularities])
measure_times['Time granularity'] = time.perf_counter() - m
print("Time granularity: " + str(m_time_granularity) + " (seconds)")
m = time.perf_counter()
if check_measure("affinity", "structure", "distinct_traces", "all"):
from pm4py.algo.filtering.log.variants import variants_filter
var = variants_filter.get_variants(pm4py_log)
measure_times['var'] = time.perf_counter() - m
m = time.perf_counter()
if check_measure("affinity", "structure", "all"):
hashmap = {}
evts = list(
set.union(*[event_classes[case_id] for case_id in event_classes]))
num_act = len(evts)
i = 0
for event in evts:
for event_follows in evts:
hashmap[(event, event_follows)] = i
i += 1
aff = {}
for variant in var.keys():
])
from pm4py.algo.filtering.log.start_activities import start_activities_filter
log_af_sa = start_activities_filter.apply_auto_filter(
log, parameters={"decreasingFactor": 0.6})
print(start_activities_filter.get_start_activities(log_af_sa))
from pm4py.algo.filtering.log.end_activities import end_activities_filter
log_af_ea = end_activities_filter.apply_auto_filter(
log, parameters={"decreasingFactor": 0.6})
print(end_activities_filter.get_end_activities(log_af_ea))
#traces
from pm4py.algo.filtering.log.variants import variants_filter
variants = variants_filter.get_variants(log)
variants
from pm4py.statistics.traces.log import case_statistics
variants_count = case_statistics.get_variant_statistics(log)
variants_count = sorted(variants_count, key=lambda x: x['count'], reverse=True)
print(variants_count)
print(len(variants_count))
#most common
filtered_log1 = variants_filter.apply(log, [
"Confirmation of receipt,T02 Check confirmation of receipt,T04 Determine confirmation of receipt,T05 Print and send confirmation of receipt,T06 Determine necessity of stop advice,T10 Determine necessity to stop indication"
])
filtered_log1
variants_count_filtered_log1 = case_statistics.get_variant_statistics(
filtered_log1)
def getaverageduration(log, logname, logtime, logtransi, logid):
activities = attributes_filter.get_attribute_values(log, logname)
time = attributes_filter.get_attribute_values(log, logtime)
variants = variants_filter.get_variants(log)
#print('\n',activities,'\n')
#print('\n',time)
#print('\n',variants)
timeList = []
variantsList = []
variantsList1 = []
transitionList = []
activitieslist = []
eventidlist = []
for trace in activities:
activitieslist.append(trace)
for trace in log:
for event in trace:
timeList.append(str(event[logtime]))
#print (trace,'\n')
for trace in log:
for event in trace:
transitionList.append(event[logtransi])
eventidlist.append(event[logid])
for trace in log:
sublist = []
for event in trace:
variantsList.append(event[logname])
sublist.append(event[logname])
variantsList1.append(sublist)
#print (trace,'\n')
#print('\n',timeList)
#print(variantsList)
result = []
durationlist = []
durationlist1 = []
durationlist2 = []
indexlist = []
#durationlist = []
#start position in timestamp now
#526000 must be replaced
fmt = '%Y-%m-%d %H:%M:%S'
for i, val in enumerate(activitieslist):
timeSum = 0
count = 0
for j in range(len(transitionList)):
if transitionList[j] == "START" or transitionList[
j] == "start" and variantsList[j] == val:
k = j + 1
while True:
if (transitionList[k] == "COMPLETE"
or transitionList[k] == "complete"
) and eventidlist[k] == eventidlist[j]:
end = timeList[k][0:19]
start = timeList[j][0:19]
duration = dt.datetime.strptime(
end, fmt) - dt.datetime.strptime(start, fmt)
count += 1
timeSum += int(duration.total_seconds())
print(duration, timeSum, 'line 66')
indexlist.append(k)
break
k += 1
durationlist1.append((timeSum, count))
print(durationlist1, 'line 70')
#print(indexlist)
if 2000 in indexlist:
print('hahaha')
for i, val in enumerate(activitieslist):
timeSum = 0
count = 0
header = 0
for j in range(len(variantsList1)):
for h in range(len(variantsList1[j]) - 1):
jump = 0
if transitionList[header + h] == "COMPLETE" or transitionList[
header +
h] == "complete" and variantsList1[j][h] == val:
#for k in range(len(indexlist)):
#x = h + header
#if x == indexlist[k]:
#jump = 1
#break
'''if 2000 in indexlist:
print('hahaha')'''
x = h + header
if not (x in indexlist):
end = timeList[header + h + 1][0:19]
start = timeList[header + h][0:19]
duration = dt.datetime.strptime(
end, fmt) - dt.datetime.strptime(start, fmt)
count += 1
#print(count)
timeSum += int(duration.total_seconds())
header += len(variantsList1[j])
durationlist2.append((timeSum, count))
print(durationlist2, 'line 108')
for i, val in enumerate(durationlist1):
duration = val[0] + durationlist2[i][0]
count = val[1] + durationlist2[i][1]
if count == 0:
averageduration = 0
result.append(0)
else:
averageduration = duration / count
result.append(averageduration)
print(result, "line 117")
return result
'''
for i,val in enumerate(activitiesList):
count = 0
timeSum = 0
timestart=[]
timecomplete=[]
for j in range(len(variantsList)):
if variantsList[j] == val and j!=len(variantsList)-1 and transitionList[j] == "START":
timestart.append(j)
if variantsList[j] == val and j!=len(variantsList)-1 and transitionList[j] == "COMPLETE":
timecomplete.append(j)
if timestart != []:
for j in range(len(timestart)):
end = timeList[timecomplete[j]][0:19]
start = timeList[timestart[j]][0:19]
ts = dt.datetime.strptime(end,fmt)-dt.datetime.strptime(start,fmt)
if int(ts.total_seconds()) >= 0:
timeSum += int(ts.total_seconds())
count += 1
for j in range(len(variantsList)):
if variantsList[j] == val and j!=len(variantsList)-1 and transitionList[j] == "SCHEDULE":
end = timeList[j+1][0:19]
start = timeList[j][0:19]
ts = dt.datetime.strptime(end,fmt)-dt.datetime.strptime(start,fmt)
if int(ts.total_seconds()) >= 0:
timeSum += int(ts.total_seconds())
count += 1
else:
for j in range(len(variantsList)):
if variantsList[j] == val and j!=len(variantsList)-1:
end = timeList[j+1][0:19]
start = timeList[j][0:19]
ts = dt.datetime.strptime(end,fmt)-dt.datetime.strptime(start,fmt)
if int(ts.total_seconds()) >= 0:
timeSum += int(ts.total_seconds())
count += 1
if timeSum == 0 :
duration.append(0)
else:
duration.append(timeSum/count)
'''
#print('Here is our list of average duration:','\n',duration,'\n')
#for i in range(len(duration)):
#print('The average duration of activity ',activitiesList[i],' is ',duration[i],' seconds')
return duration
def samplingVariantsForAmstc(net,
m0,
mf,
log,
sample_size,
size_of_run,
max_d,
max_t,
m,
maxCounter=2,
editDistance=True,
silent_label="tau",
debug=None):
'''
This function computes a AMSTC with a sampling method. See scientific paper : Model-based Trace Variants
:param net (Petri) : process model
:param m0 (Marking) : initial marking
:param mf (Marking) : final marking
:param log (Log) : log traces
:param sample_size (int) : number of traces that will be used in the complete AMSTC
:param size_of_run (int) : length of the run in the process model
:param max_d (int) : maximal distance between centroids and traces
:param max_t (int) : maximal number of transitions in a cluster
:param m (int) : number of cluster
:param maxCounter (int) : number of trials without results in the sampling method
:param editDistance (bool) : use of edit distance between traces
:param silent_label (string) : count 0 every transition that contains its substring
:return:
'''
def logAlignToCluster(tuple_centroid, traces, variants, editDistance,
max_d, counter):
'''
Private function of the sampling method with variants. From a centroid, cluster all the traces that
can be aligned for a cost <= max_d
:param tuple_centroid: (net, m0, mf)
:param traces: list of log traces
:param variants: dictionary of variants
:param editDistance (boolean) : use or not the edit distance heuristic
:param max_d (int): maximal distance between the traces and centroids (or casual distance !!)
:param counter (int): number of trials
:return:
'''
centroid, c_m0, c_mf = tuple_centroid
traces_of_clusters = []
used_variants = []
cleaned_clustered_traces = []
for clustered in traces:
# remove "w" and "ww" labels of SAT results
cleaned_clustered_traces.append([
x for x in clustered
if x != WAIT_LABEL_TRACE and x != WAIT_LABEL_MODEL
])
for l in variants:
bool_clustered = False
if editDistance:
# format is not the same due to the SAT results
transformed_l = list(
map(lambda e: e[xes_util.DEFAULT_NAME_KEY],
variants[l][0]))
# align clustered traces and entire log traces with edit distance
for clustered in cleaned_clustered_traces:
if editdistance.eval(clustered,
transformed_l) < (max_d + 1):
counter = -1
traces_of_clusters += variants[l]
used_variants.append(l)
bool_clustered = True
break
# align centroid and entire log with alignments
if not bool_clustered:
alignment = alignments.algorithm.apply(variants[l][0],
centroid, c_m0, c_mf)
if alignment['cost'] < 10000 * ((max_d + 1)):
counter = -1
traces_of_clusters += variants[l]
used_variants.append(l)
return traces_of_clusters, used_variants, cleaned_clustered_traces, counter
# ---------------------------------------------------------------------------------------------------------------
log = deepcopy(log)
start, totalAlign = time.clock(), 0
counter, nbOfIteration = 0, 0
clusters = []
variants = get_variants(log)
while len(log._list) > 0 and counter < maxCounter:
clustering = Amstc(net,
m0,
mf,
log,
size_of_run,
max_d,
max_t,
m,
nbTraces=sample_size,
silent_label=silent_label)
nbOfIteration += 1
result = clustering.getClustering()
if debug is not None:
print("> Found", len(result) - 1, "centroids")
print(time.clock() - start)
# if there is at least a clustered trace :
if len(result) - 1 > 0:
for (tuple_centroid, traces) in result:
if type(tuple_centroid) is tuple:
# launches logAlignToCluster function that uses trace variant alignments to cluster
startAlign = time.clock()
traces_of_clusters, used_variants,cleaned_clustered_traces, counter=\
logAlignToCluster(tuple_centroid, traces, variants,editDistance, max_d,counter)
totalAlign += (time.clock() - startAlign)
for v in used_variants:
del variants[v]
log._list = list(set(log._list) - set(traces_of_clusters))
# create the cluster
if len(traces_of_clusters) > 0:
clusters.append((tuple_centroid, traces_of_clusters))
# if we found at least a good centroid
if counter == -1:
counter = 0
else:
counter += 1
else:
counter += 1
if debug is not None:
print("This clustering has been found in ", nbOfIteration,
" iterations and " + str(time.clock() - start) + "secondes.")
print(str(totalAlign) + " secondes have been used to align.")
for (centroid, traces) in clusters:
print(len(traces))
if type(centroid) is tuple:
net, m0, mf = centroid
#vizu.apply(net, m0, mf).view()
#input("enter..")
print(len(log._list), "traces are unclustered.")
clusters.append(("nc", log._list))
return clusters
def apply_auto_filter(log, parameters=None):
"""
Apply some filters in battery to the log in order to get a simplified log
Parameters
----------
log
Log
parameters
Eventual parameters applied to the algorithms:
decreasingFactor -> Decreasing factor (provided to all algorithms)
activity_key -> Activity key (must be specified if different from concept:name)
Returns
---------
filtered_log
Filtered log
"""
# the following filters are applied:
# - activity filter (keep only attributes with a reasonable number of occurrences) (if enabled)
# - variant filter (keep only variants with a reasonable number of occurrences) (if enabled)
# - start attributes filter (keep only variants that starts with a plausible start activity) (if enabled)
# - end attributes filter (keep only variants that starts with a plausible end activity) (if enabled)
if parameters is None:
parameters = {}
attribute_key = parameters[
PARAMETER_CONSTANT_ACTIVITY_KEY] if PARAMETER_CONSTANT_ACTIVITY_KEY in parameters else xes.DEFAULT_NAME_KEY
decreasing_factor = parameters[
"decreasingFactor"] if "decreasingFactor" in parameters else filtering_constants.DECREASING_FACTOR
parameters_child = {
"decreasingFactor": decreasing_factor,
constants.PARAMETER_CONSTANT_ACTIVITY_KEY: attribute_key,
constants.PARAMETER_CONSTANT_ATTRIBUTE_KEY: attribute_key
}
enable_activities_filter = parameters[
"enable_activities_filter"] if "enable_activities_filter" in parameters else True
enable_variants_filter = parameters[
"enable_variants_filter"] if "enable_variants_filter" in parameters else False
enable_start_activities_filter = parameters[
"enable_start_activities_filter"] if "enable_start_activities_filter" in parameters else False
enable_end_activities_filter = parameters[
"enable_end_activities_filter"] if "enable_end_activities_filter" in parameters else True
variants = variants_module.get_variants(log, parameters=parameters_child)
filtered_log = log
if enable_activities_filter:
filtered_log = attributes_filter.apply_auto_filter(
log, variants=variants, parameters=parameters_child)
variants = variants_module.get_variants(filtered_log,
parameters=parameters_child)
if enable_variants_filter:
filtered_log = variants_module.apply_auto_filter(
filtered_log, variants=variants, parameters=parameters_child)
variants = variants_module.get_variants(filtered_log,
parameters=parameters_child)
if enable_start_activities_filter:
filtered_log = start_activities_filter.apply_auto_filter(
filtered_log, variants=variants, parameters=parameters_child)
if enable_end_activities_filter:
filtered_log = end_activities_filter.apply_auto_filter(
filtered_log, variants=variants, parameters=parameters_child)
return filtered_log
log,
parameters={
constants.PARAMETER_CONSTANT_ATTRIBUTE_KEY: "concept:name",
"decreasingFactor": 0.6
})
activities = attributes_filter.get_attribute_values(log, "concept:name")
auto_filtered_activities = attributes_filter.get_attribute_values(
log, "concept:name")
# Entire variants
from pm4py.algo.filtering.log.variants import variants_filter
variants = variants_filter.get_variants(log)
log = variants_filter.apply_auto_filter(log)
auto_variants = variants_filter.get_variants(auto_filtered_log)
# Export the log
from pm4py.objects.log.exporter.xes import factory as xes_exporter
xes_exporter.export_log(
log,
"C:/Users/vince_000/Documents/BPI Challenge 2019/Exports/exportedLog_2.xes"
)
log[0]
def apply(log, parameters=None):
"""
Calculates the HW metric
Parameters
------------
log
Log
parameters
Possible parameters of the algorithm:
beta -> beta value as described in the Wil SNA paper
Returns
-----------
tuple
Tuple containing the metric matrix and the resources list. Moreover, last boolean indicates that the metric is
directed.
"""
if parameters is None:
parameters = {}
resource_key = parameters[
constants.
PARAMETER_CONSTANT_RESOURCE_KEY] if constants.PARAMETER_CONSTANT_RESOURCE_KEY in parameters else xes.DEFAULT_RESOURCE_KEY
beta = parameters[BETA] if BETA in parameters else 0
parameters_variants = {
constants.PARAMETER_CONSTANT_ACTIVITY_KEY: resource_key,
constants.PARAMETER_CONSTANT_ATTRIBUTE_KEY: resource_key
}
variants_occ = {
x: len(y)
for x, y in variants_filter.get_variants(
log, parameters=parameters_variants).items()
}
variants_resources = list(variants_occ.keys())
resources = [x.split(",") for x in variants_resources]
flat_list = sorted(
list(set([item for sublist in resources for item in sublist])))
metric_matrix = numpy.zeros((len(flat_list), len(flat_list)))
sum_i_to_j = {}
for rv in resources:
for i in range(len(rv) - 1):
res_i = flat_list.index(rv[i])
if not res_i in sum_i_to_j:
sum_i_to_j[res_i] = {}
for j in range(i + 1, len(rv)):
res_j = flat_list.index(rv[j])
if not res_j in sum_i_to_j[res_i]:
sum_i_to_j[res_i][res_j] = 0
if beta == 0:
sum_i_to_j[res_i][res_j] += variants_occ[",".join(rv)]
break
else:
sum_i_to_j[res_i][res_j] += variants_occ[",".join(rv)] * (
beta**(j - i - 1))
dividend = 0
for rv in resources:
if beta == 0:
dividend = dividend + variants_occ[",".join(rv)] * (len(rv) - 1)
else:
dividend = dividend + variants_occ[",".join(rv)] * (len(rv) - 1)
for key1 in sum_i_to_j:
for key2 in sum_i_to_j[key1]:
metric_matrix[key1][key2] = sum_i_to_j[key1][key2] / dividend
return [metric_matrix, flat_list, True]
def test_22(self):
from pm4py.algo.filtering.log.variants import variants_filter
log = self.load_running_example_xes()
variants = variants_filter.get_variants(log)
def apply(log, parameters=None):
"""
Returns a log from which a sound workflow net could be extracted taking into account
a discovery algorithm returning models only with visible transitions
Parameters
------------
log
Trace log
parameters
Possible parameters of the algorithm, including:
discovery_algorithm -> Discovery algorithm to consider, possible choices: alphaclassic
max_no_variants -> Maximum number of variants to consider to return a Petri net
Returns
------------
filtered_log
Filtered log
"""
from pm4py.evaluation.replay_fitness import factory as replay_fitness_factory
if parameters is None:
parameters = {}
discovery_algorithm = parameters["discovery_algorithm"] if "discovery_algorithm" in parameters else "alphaclassic"
max_no_variants = parameters["max_no_variants"] if "max_no_variants" in parameters else 20
all_variants_dictio = variants_filter.get_variants(log, parameters=parameters)
all_variants_list = []
for var in all_variants_dictio:
all_variants_list.append([var, len(all_variants_dictio[var])])
all_variants_list = sorted(all_variants_list, key=lambda x: (x[1], x[0]), reverse=True)
considered_variants = []
considered_traces = []
i = 0
while i < min(len(all_variants_list), max_no_variants):
variant = all_variants_list[i][0]
considered_variants.append(variant)
considered_traces.append(all_variants_dictio[variant][0])
filtered_log = EventLog(considered_traces)
net = None
initial_marking = None
final_marking = None
if discovery_algorithm == "alphaclassic" or discovery_algorithm == "alpha":
net, initial_marking, final_marking = alpha_miner.apply(filtered_log, parameters=parameters)
is_sound = check_soundness.check_petri_wfnet_and_soundness(net)
if not is_sound:
del considered_variants[-1]
del considered_traces[-1]
else:
try:
fitness = replay_fitness_factory.apply(filtered_log, net, initial_marking, final_marking,
parameters=parameters)
if fitness["log_fitness"] < 0.99999:
del considered_variants[-1]
del considered_traces[-1]
except TypeError:
del considered_variants[-1]
del considered_traces[-1]
i = i + 1
sound_log = EventLog()
if considered_variants:
sound_log = variants_filter.apply(log, considered_variants, parameters=parameters)
return sound_log
def apply(log, parameters=None):
"""
Calculates the Subcontracting metric
Parameters
------------
log
Log
parameters
Possible parameters of the algorithm:
n -> n of the algorithm proposed in the Wil SNA paper
Returns
-----------
tuple
Tuple containing the metric matrix and the resources list
"""
if parameters is None:
parameters = {}
resource_key = parameters[
constants.
PARAMETER_CONSTANT_RESOURCE_KEY] if constants.PARAMETER_CONSTANT_RESOURCE_KEY in parameters else xes.DEFAULT_RESOURCE_KEY
n = parameters[N] if N in parameters else 2
parameters_variants = {
constants.PARAMETER_CONSTANT_ACTIVITY_KEY: resource_key,
constants.PARAMETER_CONSTANT_ATTRIBUTE_KEY: resource_key
}
variants_occ = {
x: len(y)
for x, y in variants_filter.get_variants(
log, parameters=parameters_variants).items()
}
variants_resources = list(variants_occ.keys())
resources = [x.split(",") for x in variants_resources]
flat_list = sorted(
list(set([item for sublist in resources for item in sublist])))
metric_matrix = numpy.zeros((len(flat_list), len(flat_list)))
sum_i_to_j = {}
for rv in resources:
for i in range(len(rv) - n):
res_i = flat_list.index(rv[i])
res_i_n = flat_list.index(rv[i + n])
if res_i == res_i_n:
if res_i not in sum_i_to_j:
sum_i_to_j[res_i] = {}
for j in range(i + 1, i + n):
res_j = flat_list.index(rv[j])
if res_j not in sum_i_to_j[res_i]:
sum_i_to_j[res_i][res_j] = 0
sum_i_to_j[res_i][res_j] += variants_occ[",".join(rv)]
dividend = 0
for rv in resources:
dividend = dividend + variants_occ[",".join(rv)] * (len(rv) - 1)
for key1 in sum_i_to_j:
for key2 in sum_i_to_j[key1]:
metric_matrix[key1][key2] = sum_i_to_j[key1][key2] / dividend
return [metric_matrix, flat_list, True]
def apply_filter(req):
sessions[req.session["id"]] = datetime.now()
filters = {
"time": True,
"variants": True,
"performance": True,
"activities": True,
"attribute": True
}
req.session.set_expiry(7200)
#print(str(req.body))
o = json.loads(req.body)
print(str(o))
custom_time_range = []
for pair in o["filter1"]:
#custom_time_range.append((dateutil.parser.parse(pair[0]),dateutil.parser.parse(pair[1])))
custom_time_range.append((pair[0],pair[1]))
if o["filter1"] == []:
filters["time"] = False
#print(o["filter1"][0])
#print(custom_time_range[0][0])
#print(custom_time_range)
custom_path_range = []
for pair in o["filter2"]:
custom_path_range.append((float(pair[0]),float(pair[1])))
if o["filter2"] == []:
filters["variants"] = False
#custom_path_range = [(0,1)] #filter2
custom_performance_range = []
for pair in o["filter3"]:
custom_performance_range.append((float(pair[0]),float(pair[1])))
if o["filter3"] == []:
filters["performance"] = False
custom_activitiy_range = []
for pair in o["filter4"]:
custom_activitiy_range.append((float(pair[0]),float(pair[1])))
if o["filter4"] == []:
filters["activities"] = False
#custom_activitiy_range = [(0,1)] #filter3
custom_attribute_range = []
for pair in o["filter5"]:
custom_attribute_range.append((float(pair[0]),float(pair[1])))
if o["filter5"] == [] or o["filter5attribute"] == "Empty":
filters["attribute"] = False
additional_attribute = o["filter5attribute"]
selected_viz = o["visualization"]
calc_lev = o["distance"]
#input_file = os.path.join("webapp","static", req.session["id"] + "_l0.xes")
input_file = os.path.join("webapp","static", "sepsis.xes")
input_log = xes_importer.apply(input_file)
not_filtered_logs = {}
flatten = lambda l: [item for sublist in l for item in sublist]
time_timestamp_started = datetime.now()
if filters["time"]:
#TODO check overlapping for filter
custom_time_range = sorted(custom_time_range, reverse=False)
for i in range(0,len(custom_time_range)-1):
if(custom_time_range[i][1] > custom_time_range[i+1][0]):
response = HttpResponse(json.dumps({'error': "Wrong intervals for time filter"}))
response.status_code = 200
return response
#raise ValueError("Overlapping time ranges")
logs = []
for (x,y) in custom_time_range:
logs.append(timestamp_filter.filter_traces_contained(input_log, x, y))
#log = timestamp_filter.filter_traces_contained(input_log, custom_time_range[0][0], custom_time_range[0][1])
log = pm4py.objects.log.log.EventLog()
for timeslice in logs:
for trace in timeslice:
log.append(trace)
print(len(input_log))
print(len(log))
#l2
not_filtered_logs["timestamp_filter"] = pm4py.objects.log.log.EventLog()
for trace in input_log:
if trace not in log:
not_filtered_logs["timestamp_filter"].append(trace)
print(len(not_filtered_logs["timestamp_filter"]))
else:
log = input_log
time_variants_started = datetime.now() # where should I start?
if filters["variants"]:
variants = variants_filter.get_variants(log)
variants_count = case_statistics.get_variant_statistics(log)
variants_count = sorted(variants_count, key=lambda x: x['count'], reverse=False)
custom_path_range = sorted(custom_path_range, reverse=False)
# check overlapping
for i in range(0,len(custom_path_range)-1):
if(custom_path_range[i][1] > custom_path_range[i+1][0]):
response = HttpResponse(json.dumps({'error': "Wrong intervals for variants filter"}))
response.status_code = 200
return response
#raise ValueError("Overlapping variants ranges")
nr_variants = len(variants_count)
custom_path_range * nr_variants
idx = [(math.floor(x*nr_variants), math.ceil(y*nr_variants)) for (x,y) in custom_path_range]
variants_subset = [variants_count[x:y+1] for (x,y) in idx]
variants_subset = flatten(variants_subset)
filtered_variants = {k:v for k,v in variants.items() if k in [x["variant"] for x in variants_subset]}
#l2
not_filtered_variants = {k:v for k,v in variants.items() if k not in [x["variant"] for x in variants_subset]}
filtered_log = variants_filter.apply(log, filtered_variants)
#l2
not_filtered_logs["variant_filter"] = variants_filter.apply(log, not_filtered_variants)
else:
filtered_log = log
time_variants_finished = datetime.now() # note: incl log2 generation
if filters["performance"]:
custom_performance_range = sorted(custom_performance_range, reverse=False)
# check overlapping
for i in range(0,len(custom_performance_range)-1):
if(custom_performance_range[i][1] > custom_performance_range[i+1][0]):
response = HttpResponse(json.dumps({'error': "Wrong intervals for performance filter"}))
response.status_code = 200
return response
#raise ValueError("Overlapping performance ranges")
#all_case_durations = case_statistics.get_all_casedurations(log, parameters={case_statistics.Parameters.TIMESTAMP_KEY: "time:timestamp"})
#case_filter.filter_case_performance(log, 86400, 864000)
performances = []
for i in range(len(filtered_log)):
filtered_log[i].attributes["throughput"] = (max([event["time:timestamp"]for event in filtered_log[i]])-min([event["time:timestamp"] for event in filtered_log[i]])).total_seconds()
performances.append(filtered_log[i].attributes["throughput"])
nr_cases = len(filtered_log)
performances = sorted(performances, reverse=False)
idx = [(math.floor(x*nr_cases), math.ceil(y*nr_cases)) for (x,y) in custom_performance_range]
perf_subset = [performances[x:y+1] for (x,y) in idx]
perf_subset = flatten(perf_subset)
performance_log = pm4py.objects.log.log.EventLog([trace for trace in filtered_log if trace.attributes["throughput"] in perf_subset])
#l2
not_filtered_logs["performance_filter"] = pm4py.objects.log.log.EventLog([trace for trace in filtered_log if trace.attributes["throughput"] not in perf_subset])
#print(str(len(not_filtered_logs["performance_filter"])))
else:
performance_log = filtered_log
time_performance_finished = datetime.now()
if filters["activities"]:
variants = variants_filter.get_variants(performance_log)
variants_count = case_statistics.get_variant_statistics(performance_log)
variants_count = sorted(variants_count, key=lambda x: x['count'], reverse=False)
activities = dict()
for variant in variants_count:
for activity in variant["variant"].split(","):
if (activity not in activities.keys()):
activities[activity] = variant["count"]
else:
activities[activity] += variant["count"]
sorted_activities = {k: v for k, v in sorted(activities.items(), key=lambda item: item[1])}
activities_sorted_list = list(sorted_activities)
custom_activitiy_range = sorted(custom_activitiy_range, reverse=False)
# check overlapping
for i in range(0,len(custom_activitiy_range)-1):
if(custom_activitiy_range[i][1] > custom_activitiy_range[i+1][0]):
response = HttpResponse(json.dumps({'error': "Wrong intervals for activities filter"}))
response.status_code = 200
return response
#raise ValueError("Overlapping activities ranges")
nr_activities = len(activities_sorted_list)
idx = [(math.floor(x*nr_activities), math.ceil(y*nr_activities)) for (x,y) in custom_activitiy_range]
activities_to_keep = [activities_sorted_list[x:y+1] for (x,y) in idx]
activities_to_keep = flatten(activities_to_keep)
variants_idx = []
for i in range(len(variants_count)):
for activity in activities_to_keep:
if (activity in variants_count[i]["variant"].split(",") and (i not in variants_idx)):
variants_idx.append(i)
variants_subset = [variants_count[i] for i in variants_idx]
filtered_variants = {k:v for k,v in variants.items() if k in [x["variant"] for x in variants_subset]}
#l2
not_filtered_variants = {k:v for k,v in variants.items() if k not in [x["variant"] for x in variants_subset]}
filtered_log = variants_filter.apply(performance_log, filtered_variants)
#l2
not_filtered_logs["activities_filter"] = variants_filter.apply(performance_log, not_filtered_variants)
new_log = pm4py.objects.log.log.EventLog()
#not_filtered_logs["activities_filter_traces"] = pm4py.objects.log.log.EventLog()
for trace in filtered_log:
new_trace = pm4py.objects.log.log.Trace()
not_new_trace = pm4py.objects.log.log.Trace()
for event in trace:
if(event['concept:name'] in activities_to_keep):
new_trace.append(event)
else:
not_new_trace.append(event)
if(len(new_trace)>0):
new_log.append(new_trace)
if(len(not_new_trace)>0):
not_filtered_logs["activities_filter"].append(not_new_trace)
else:
new_log = performance_log
time_activities_finished = datetime.now()
if filters["attribute"]:
custom_attribute_range = sorted(custom_attribute_range, reverse=False)
# check overlapping
for i in range(0,len(custom_attribute_range)-1):
if(custom_attribute_range[i][1] > custom_attribute_range[i+1][0]):
response = HttpResponse(json.dumps({'error': "Wrong intervals for additional attribute filter"}))
response.status_code = 200
return response
newest_log = pm4py.objects.log.log.EventLog()
not_filtered_logs["additional_filter"] = pm4py.objects.log.log.EventLog()
traces_with_attr = []
not_traces_with_attr = []
for trace in new_log:
if additional_attribute in trace.attributes.keys():
traces_with_attr.append(trace)
else:
not_traces_with_attr.append(trace)
#check if trace attribute
if len(traces_with_attr)>0:
#check if numeric
if type(traces_with_attr[0].attributes[additional_attribute]) in [int, float]:
for trace in traces_with_attr:
if any([trace.attributes[additional_attribute] >= x and trace.attributes[additional_attribute] <= y for (x,y) in custom_attribute_range]):
newest_log.append(trace)
else:
not_filtered_logs["additional_filter"].append(trace)
for trace in not_traces_with_attr:
not_filtered_logs["additional_filter"].append(trace)
else: #string
attribute_frequencies = dict()
for trace in traces_with_attr:
if trace.attributes[additional_attribute] not in attribute_frequencies.keys():
attribute_frequencies[trace.attributes[additional_attribute]] = 0
attribute_frequencies[trace.attributes[additional_attribute]] += 1
sorted_frequencies = {k: v for k, v in sorted(attribute_frequencies.items(), key=lambda item: item[1])}
frequencies_sorted_list = list(sorted_frequencies)
nr_values = len(frequencies_sorted_list)
idx = [(math.floor(x*nr_values), math.ceil(y*nr_values)) for (x,y) in custom_attribute_range]
values_to_keep = [frequencies_sorted_list[x:y+1] for (x,y) in idx]
values_to_keep = flatten(values_to_keep)
for trace in traces_with_attr:
if trace.attributes[additional_attribute] in values_to_keep:
newest_log.append(trace)
else:
not_filtered_logs["additional_filter"].append(trace)
for trace in not_traces_with_attr:
not_filtered_logs["additional_filter"].append(trace)
else: #event attribute
if [type(event[additional_attribute]) for trace in new_log for event in trace if additional_attribute in event.keys()][0] in [int, float]:
for trace in new_log:
new_trace = pm4py.objects.log.log.Trace()
not_new_trace = pm4py.objects.log.log.Trace()
for event in trace:
if(additional_attribute in event.keys() and any([event[additional_attribute] >= x and event[additional_attribute] <= y for (x,y) in custom_attribute_range ])):
new_trace.append(event)
else:
not_new_trace.append(event)
if(len(new_trace)>0):
newest_log.append(new_trace)
if(len(not_new_trace)>0):
not_filtered_logs["additional_filter"].append(not_new_trace)
else: #string
attribute_frequencies = dict()
for trace in new_log:
for event in trace:
if additional_attribute in event.keys():
if event[additional_attribute] not in attribute_frequencies.keys():
attribute_frequencies[event[additional_attribute]] = 0
attribute_frequencies[event[additional_attribute]] += 1
sorted_frequencies = {k: v for k, v in sorted(attribute_frequencies.items(), key=lambda item: item[1])}
frequencies_sorted_list = list(sorted_frequencies)
nr_values = len(frequencies_sorted_list)
idx = [(math.floor(x*nr_values), math.ceil(y*nr_values)) for (x,y) in custom_attribute_range]
values_to_keep = [frequencies_sorted_list[x:y+1] for (x,y) in idx]
values_to_keep = flatten(values_to_keep)
for trace in new_log:
new_trace = pm4py.objects.log.log.Trace()
not_new_trace = pm4py.objects.log.log.Trace()
for event in trace:
if(additional_attribute in event.keys() and event[additional_attribute] in values_to_keep):
new_trace.append(event)
else:
not_new_trace.append(event)
if(len(new_trace)>0):
newest_log.append(new_trace)
if(len(not_new_trace)>0):
not_filtered_logs["additional_filter"].append(not_new_trace)
else:
newest_log = new_log
time_attribute_finished = datetime.now()
if(selected_viz=="dfgf"):
dfg = dfg_discovery.apply(newest_log)
gviz = dfg_visualization.apply(dfg, log=newest_log, variant=dfg_visualization.Variants.FREQUENCY)
dfg_visualization.save(gviz, os.path.join("webapp","static", req.session["id"] + "_l1.png"))
elif(selected_viz=="dfgp"):
dfg = dfg_discovery.apply(newest_log)
gviz = dfg_visualization.apply(dfg, log=newest_log, variant=dfg_visualization.Variants.PERFORMANCE)
dfg_visualization.save(gviz, os.path.join("webapp","static", req.session["id"] + "_l1.png"))
else:
heu_net = heuristics_miner.apply_heu(newest_log, parameters={"dependency_thresh": 0.99})
gviz = hn_vis_factory.apply(heu_net)
hn_vis_factory.save(gviz, os.path.join("webapp","static", req.session["id"] + "_l1.png"))
xes_exporter.apply(newest_log, os.path.join("webapp","static", req.session["id"] + "_l1.xes"))
#l2
not_filtered_log = pm4py.objects.log.log.EventLog()
for part in not_filtered_logs.keys():
for trace in not_filtered_logs[part]:
not_filtered_log.append(trace)
if(selected_viz=="dfgf"):
dfg = dfg_discovery.apply(not_filtered_log)
gviz = dfg_visualization.apply(dfg, log=not_filtered_log, variant=dfg_visualization.Variants.FREQUENCY)
dfg_visualization.save(gviz, os.path.join("webapp","static", req.session["id"] + "_l2.png"))
elif(selected_viz=="dfgp"):
dfg = dfg_discovery.apply(not_filtered_log)
gviz = dfg_visualization.apply(dfg, log=not_filtered_log, variant=dfg_visualization.Variants.PERFORMANCE)
dfg_visualization.save(gviz, os.path.join("webapp","static", req.session["id"] + "_l2.png"))
else:
heu_net = heuristics_miner.apply_heu(not_filtered_log, parameters={"dependency_thresh": 0.99})
gviz = hn_vis_factory.apply(heu_net)
hn_vis_factory.save(gviz, os.path.join("webapp","static", req.session["id"] + "_l2.png"))
xes_exporter.apply(not_filtered_log, os.path.join("webapp","static", req.session["id"] + "_l2.xes"))
if(calc_lev):
lev_new = [0]*len(newest_log)
for i in range(len(newest_log)):
lev_new[i] = [hash(event['concept:name']) for event in newest_log[i]]
lev_not = [0]*len(not_filtered_log)
for i in range(len(not_filtered_log)):
lev_not[i] = [hash(event['concept:name']) for event in not_filtered_log[i]]
distances = []
for i in range(len(lev_new)):
for j in range(len(lev_not)):
distances.append(lev_dist(lev_new[i], lev_not[j]))
lev_d = sum(distances)/len(distances)
print("Levenshtein's distance: "+str(lev_d))
else:
lev_d = "null"
used_paths = 0
for lower, higher in custom_path_range:
used_paths += round((higher-lower)*100)
print(f"Using {used_paths}% of paths. {100-used_paths}% of paths are discarded.")
print("Timestamp filter: {} seconds. \nVariants filter: {} seconds. \nPerformance filter: {} seconds. \nActivities filter: {} seconds. \nAttribute filter: {} seconds.".format((time_variants_started - time_timestamp_started).total_seconds(), (time_variants_finished - time_variants_started).total_seconds(), (time_performance_finished - time_variants_finished).total_seconds(), (time_activities_finished - time_performance_finished).total_seconds(), (time_attribute_finished - time_activities_finished).total_seconds()))
response = HttpResponse(json.dumps({'time':(time_variants_started - time_timestamp_started).total_seconds(), 'variants':(time_variants_finished - time_variants_started).total_seconds(),'performance':(time_performance_finished - time_variants_finished).total_seconds(), 'activities':(time_activities_finished - time_performance_finished).total_seconds(), 'attribute':(time_attribute_finished - time_activities_finished).total_seconds(), 'traces':[len(newest_log), len(not_filtered_log)], 'distance':lev_d}))
response.status_code = 200
return response
# filter out activities representing work items
w_activities_2017 = [i for i in activities_2017.keys() if i.startswith('W_')]
fil_log_17 = attributes_filter.apply_events(
log,
w_activities_2017,
parameters={
attributes_filter.PARAMETER_CONSTANT_ATTRIBUTE_KEY: "concept:name",
"positive": True
})
# instances
print("2017 instances: ", len(fil_log_17))
# variants
variants = variants_filter.get_variants(fil_log_17)
print("2017 variants: ", len(variants))
# instances per variant
sum_val = 0
for value in variants.values():
sum_val += len(value)
ipv = sum_val / len(variants)
print("2017 instances per variant", ipv)
# events
events_2017 = 0
for trace in fil_log_17:
events_2017 += len(trace)
print("2017 events", events_2017)
