def calculate_adjusted_miss_rate(res_folder):
"""
Given the path to folder containing classifier results files that have the form of ClassifierName_wrong.txt or *_right.txt.
We adjust for those wrong examples that have 1+ class and
:param path_of_classifier_res:
:return:
"""
"""
Script that reads how many wrong we have
"""
#counter the number of instances classified as wrong, but is actually predicted
#into one of its many genres
swing_counter=collections.Counter()
#get all result files that ends with _right or _wrong
for a_result in filter(lambda x: os.path.isfile(os.path.join(res_folder,x)),os.listdir(res_folder)):
assert isinstance(a_result,str)
abs_result=os.path.join(res_folder,a_result)
print(a_result)
right=0
wrong=0
if a_result.find("right") > -1:
#count the rights
with open(abs_result) as file:
right+=sum((1 for i in file if i.strip() != ""))
elif a_result.find("wrong")>-1:
wrong_res_objs=get_classification_res(abs_result)
#grab all the genres and see if it exists
for c,res_obj in enumerate(wrong_res_objs):
found=False
#grab all short genres and see if it matches
url_bow_obj=URLBow.objects(index=res_obj.ref_id).only("short_genres")[0]
found=res_obj.predicted in (normalize_genre_string(g,1) for g in url_bow_obj.short_genres) or found
if found:
swing_counter.update([res_obj.ref_id])
right+=1
else:
wrong+=1
print("Total right: {}, total wrong: {}".format(right,wrong))
print("Swing counter {}".format(str(swing_counter)))
print("Swing counter size : {}".format(len(swing_counter)))
def is_swing_sample(self,top_x_predicted=1):
"""
Test if the ClassificationResultInstance object is a swing instance, its predicted class is within one of its
multiple classes. So, right predictions are automatically also swing instances. But, wrong predicted samples
may be a swing instance
:param: top_x_predicted: check if the top x predictions are in the class's genres. If they all are,
:return: True or False if the sample is swing instance
"""
#grab all short genres and see if it matches
url_bow_obj=URLBow.objects(index=self.ref_id).only("short_genres")[0]
return all(pred_g in (normalize_genre_string(g,self.genre_lv) for g in url_bow_obj.short_genres) for pred_g in self.predicted[:top_x_predicted])
