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ima01/prec_recall.py

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1.4 KiB
Python
Executable File

#!/usr/bin/env python3
import numpy as np
import glob
import os
import pandas as pd
DIR: str = os.path.dirname(os.path.realpath(__file__))
IN_DIR: str = DIR + '/clustering'
OUT_DIR: str = DIR + ''
def intrapairs(path: str) -> set[set[str, str]]:
df = pd.read_csv(path)
clusters: list[list[str]] = df.groupby(
'cluster').agg(list).iloc[:, 0].values
intrapairs: set[set[str]] = set() # inner sets always contain 2 elements
for cluster in clusters:
for i, e1 in enumerate(cluster):
for j in range(i + 1, len(cluster)):
e2 = cluster[j]
intrapairs.add(frozenset((e1, e2,)))
return intrapairs
def main():
filelist = glob.glob(IN_DIR + '/*_groundtruth.csv')
for f in filelist:
clazz_name = os.path.basename(f)
clazz_name = clazz_name[:clazz_name.rfind('_groundtruth.csv')]
print(clazz_name)
ground_pairs = intrapairs(f)
for method in ['kmeans', 'hierarchical']:
cluster_pairs = intrapairs(
IN_DIR + '/' + clazz_name + '_' + method + '.csv')
n_common = len(ground_pairs.intersection(cluster_pairs))
precision = n_common / len(cluster_pairs)
recall = n_common / len(ground_pairs)
print(method + " precision: " + str(precision))
print(method + " recall: " + str(recall))
print()
if __name__ == '__main__':
main()