Merge pull request 'zavrazhnova_svetlana_lab_4' (#96) from zavrazhnova_svetlana_lab_4 into main
Reviewed-on: http://student.git.athene.tech/Alexey/IIS_2023_1/pulls/96
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zavrazhnova_svetlana_lab_4/README.md
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zavrazhnova_svetlana_lab_4/README.md
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# Задание:
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Использовать метод кластеризации linkage.
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Задача: Группировка транзакций на основе их суммы, возраста и пола клиента с целью выявления схожих поведенческих характеристик и обнаружения возможных случаев мошенничества.
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### Как запустить лабораторную работу:
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ЛР запускается в файле zavrazhnova_svetlana_lab_4.py через Run, сначала появится окно с графиком, а затем в консоли должны появится вычисления.
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### Технологии
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Метод AgglomerativeClustering из библиотеки sklearn, который можно использовать для кластеризации данных, чтобы найти внутреннюю структуру или группы в данных, основываясь на их сходстве.
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Библиотека scipy для выполнения иерархической кластеризации и построения dendrogram
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### Что делает лабораторная:
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Выполняет кластеризацию данных и анализ мошеннических операций в каждом кластере.
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### Пример выходных значений:
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Отрисовывается в отдельном окне dendrogram
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![dendrogram.png](dendrogram.png)
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В консоли затем выводятся значения признаков "transaction_amount", "age" и "cluster_label" для каждой точки данных
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![signs.png](signs.png)
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а также среднее значение метки мошенничества для каждого кластера и количество транзакций мошенничества в каждом кластере
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![cluster.png](cluster.png)
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Еще выводятся значения точек данных, принадлежащих каждому кластеру, чтобы выявить характеристики и структуру каждого кластера.
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![characteristics.png](characteristics.png)
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zavrazhnova_svetlana_lab_4/characteristics.png
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zavrazhnova_svetlana_lab_4/characteristics.png
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zavrazhnova_svetlana_lab_4/cluster.png
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zavrazhnova_svetlana_lab_4/cluster.png
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zavrazhnova_svetlana_lab_4/dendrogram.png
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zavrazhnova_svetlana_lab_4/dendrogram.png
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zavrazhnova_svetlana_lab_4/fraud_dataset.csv
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zavrazhnova_svetlana_lab_4/fraud_dataset.csv
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transaction_id,transaction_amount,location,merchant,age,gender,fraud_label
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1,1000.00,New York,ABC Corp,35,M,0
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2,500.00,Chicago,XYZ Inc,45,F,0
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3,2000.00,Los Angeles,ABC Corp,28,M,1
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4,1500.00,San Francisco,XYZ Inc,30,F,0
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5,800.00,Chicago,ABC Corp,50,F,0
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6,3000.00,New York,XYZ Inc,42,M,1
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7,1200.00,San Francisco,ABC Corp,55,F,0
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8,900.00,Los Angeles,XYZ Inc,37,M,0
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9,2500.00,Chicago,ABC Corp,33,F,1
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10,1800.00,New York,XYZ Inc,48,M,0
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11,750.00,San Francisco,ABC Corp,29,F,0
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12,2200.00,Chicago,XYZ Inc,51,M,0
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13,900.00,New York,ABC Corp,40,F,0
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14,1600.00,Los Angeles,XYZ Inc,26,M,0
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15,3000.00,San Francisco,ABC Corp,45,F,1
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16,1200.00,Chicago,XYZ Inc,34,M,0
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17,800.00,New York,ABC Corp,47,F,0
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18,1900.00,Los Angeles,XYZ Inc,32,M,0
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19,1100.00,San Francisco,ABC Corp,52,F,0
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20,4000.00,Chicago,XYZ Inc,38,M,1
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21,900.00,New York,ABC Corp,31,F,0
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22,1700.00,Los Angeles,XYZ Inc,49,M,0
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23,1000.00,San Francisco,ABC Corp,36,F,0
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24,2300.00,Chicago,XYZ Inc,27,M,1
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25,950.00,New York,ABC Corp,41,F,0
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26,1400.00,Los Angeles,XYZ Inc,54,M,0
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27,2800.00,San Francisco,ABC Corp,39,F,1
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28,1100.00,Chicago,XYZ Inc,44,M,0
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29,750.00,New York,ABC Corp,30,F,0
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30,2000.00,Los Angeles,XYZ Inc,46,M,0
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31,1250.00,San Francisco,ABC Corp,35,F,0
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32,2100.00,Chicago,XYZ Inc,43,M,0
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33,950.00,New York,ABC Corp,56,F,0
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34,1800.00,Los Angeles,XYZ Inc,29,M,0
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35,3200.00,San Francisco,ABC Corp,48,F,1
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36,1300.00,Chicago,XYZ Inc,37,M,0
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37,900.00,New York,ABC Corp,51,F,0
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38,2000.00,Los Angeles,XYZ Inc,33,M,0
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39,1050.00,San Francisco,ABC Corp,42,F,0
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40,2400.00,Chicago,XYZ Inc,26,M,0
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41,800.00,New York,ABC Corp,45,F,0
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42,1500.00,Los Angeles,XYZ Inc,31,M,0
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43,2800.00,San Francisco,ABC Corp,50,F,1
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44,1350.00,Chicago,XYZ Inc,28,M,0
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45,920.00,New York,ABC Corp,47,F,0
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46,2000.00,Los Angeles,XYZ Inc,36,M,0
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47,1125.00,San Francisco,ABC Corp,52,F,0
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48,1900.00,Chicago,XYZ Inc,38,M,1
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49,850.00,New York,ABC Corp,32,F,0
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50,1750.00,Los Angeles,XYZ Inc,49,M,0
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51,950.00,San Francisco,ABC Corp,27,F,0
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52,2300.00,Chicago,XYZ Inc,41,M,0
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53,850.00,New York,ABC Corp,54,F,0
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54,1600.00,Los Angeles,XYZ Inc,39,M,0
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55,3000.00,San Francisco,ABC Corp,46,F,1
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56,1250.00,Chicago,XYZ Inc,35,M,0
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57,800.00,New York,ABC Corp,56,F,0
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58,2200.00,Los Angeles,XYZ Inc,29,M,0
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59,1050.00,San Francisco,ABC Corp,48,F,0
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60,4000.00,Chicago,XYZ Inc,37,M,1
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61,950.00,New York,ABC Corp,30,F,0
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62,1700.00,Los Angeles,XYZ Inc,49,M,0
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63,1000.00,San Francisco,ABC Corp,36,F,0
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64,2800.00,Chicago,XYZ Inc,27,M,1
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65,900.00,New York,ABC Corp,41,F,0
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66,1400.00,Los Angeles,XYZ Inc,54,M,0
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67,3200.00,San Francisco,ABC Corp,39,F,1
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68,1100.00,Chicago,XYZ Inc,44,M,0
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69,750.00,New York,ABC Corp,30,F,0
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70,2000.00,Los Angeles,XYZ Inc,46,M,0
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71,1250.00,San Francisco,ABC Corp,35,F,0
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72,2100.00,Chicago,XYZ Inc,43,M,0
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73,950.00,New York,ABC Corp,56,F,0
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74,1800.00,Los Angeles,XYZ Inc,29,M,0
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75,3200.00,San Francisco,ABC Corp,48,F,1
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76,1300.00,Chicago,XYZ Inc,37,M,0
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77,900.00,New York,ABC Corp,51,F,0
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78,2000.00,Los Angeles,XYZ Inc,33,M,0
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79,1050.00,San Francisco,ABC Corp,42,F,0
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80,2400.00,Chicago,XYZ Inc,26,M,0
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81,800.00,New York,ABC Corp,45,F,0
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82,1500.00,Los Angeles,XYZ Inc,31,M,0
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83,2800.00,San Francisco,ABC Corp,50,F,1
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84,1350.00,Chicago,XYZ Inc,28,M,0
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85,920.00,New York,ABC Corp,47,F,0
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86,2000.00,Los Angeles,XYZ Inc,36,M,0
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zavrazhnova_svetlana_lab_4/signs.png
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zavrazhnova_svetlana_lab_4/zavrazhnova_svetlana_lab_4.py
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zavrazhnova_svetlana_lab_4/zavrazhnova_svetlana_lab_4.py
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import pandas as pd
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from sklearn.cluster import AgglomerativeClustering
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import matplotlib.pyplot as plt
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import scipy.cluster.hierarchy as sch
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data = pd.read_csv('fraud_dataset.csv')
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data = data.drop("transaction_id", axis=1)
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data = pd.get_dummies(data, columns=["location", "merchant", "gender"])
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features = ["transaction_amount", "age", "location_Chicago", "location_Los Angeles", "location_New York", "location_San Francisco", "merchant_ABC Corp", "merchant_XYZ Inc", "gender_F", "gender_M"]
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X = data[features].values
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# Вычисление расстояний между точками и построение dendrogram
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dendrogram = sch.dendrogram(sch.linkage(X, method='ward'))
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plt.xlabel('Instances')
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plt.ylabel('Euclidean distances')
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plt.title('Dendrogram')
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plt.show()
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n_clusters = 3
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clustering_model = AgglomerativeClustering(n_clusters=n_clusters, linkage="ward")
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data["cluster_label"] = clustering_model.fit_predict(X)
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print(data[["transaction_amount", "age", "cluster_label"]])
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fraud_rate = data.groupby("cluster_label")["fraud_label"].mean()
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print(fraud_rate)
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print(data.groupby(['fraud_label', "cluster_label"])["fraud_label"].count())
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for i in range(0, n_clusters):
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res = data[data['cluster_label'] == i].value_counts()
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print(res)
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