Maciej Czajka
f261c87e0b
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260 lines
8.9 KiB
Python
260 lines
8.9 KiB
Python
import numpy as np
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import torch
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import pandas as pd
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from torch import nn
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from torch.autograd import Variable
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from sklearn.model_selection import train_test_split
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from sklearn.metrics import accuracy_score
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import torch.nn.functional as F
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from datetime import datetime
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class Model(nn.Module):
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def __init__(self, input_dim):
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super(Model, self).__init__()
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self.layer1 = nn.Linear(input_dim, 50)
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self.layer2 = nn.Linear(50, 40)
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self.layer3 = nn.Linear(40, 3)
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def forward(self, x):
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x = F.relu(self.layer1(x))
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x = F.relu(self.layer2(x))
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x = F.softmax(self.layer3(x)) # To check with the loss function
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return x
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# funkcja usuwająca wiersze zawierające platformę "Stadia"
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def delete_stadia(games):
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index_list = []
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for i in range(0, len(games["platform"])):
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try:
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if games["platform"][i] == " Stadia":
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index_list.append(i)
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except:
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continue
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games.drop(index_list, inplace=True)
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return games.reset_index()
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# funkcja usuwająca wiersze zawierające "tbd" w kolumnie "user_review"
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def delete_tbd(games):
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index_list = []
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for i in range(0, len(games["platform"])):
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try:
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if games["user_review"][i] == "tbd":
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index_list.append(i)
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except:
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continue
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games.drop(index_list, inplace=True)
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return games.reset_index()
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def delete_PC(games):
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index_list = []
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for i in range(0, len(games["platform"])):
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try:
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if games["platform"][i] == " PC":
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index_list.append(i)
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except:
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continue
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games.drop(index_list, inplace=True)
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return games.reset_index()
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# funkcja zmieniająca kolumnę "user_review" ze stringa na numeric
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def user_review_to_numeric(games):
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games["user_review"] = pd.to_numeric(games["user_review"])
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return games
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# funkcja normalizująca wartości w kolumnie "meta_score" i "user_review"
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def normalization(games):
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games['meta_score'] = games['meta_score'] / 100.0
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games['user_review'] = games['user_review'] / 10.0
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return games
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# PlayStation - 0
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# PlayStation 2 - 1
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# PlayStation 3 - 2
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# PlayStation 4 - 3
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# PlayStation 5 - 4
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# PlayStation Vita - 5
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# Xbox - 6
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# Xbox 360 - 7
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# Xbox Series X - 8
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# Nintendo 64 - 9
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# GameCube - 10
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# DS - 11
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# 3DS - 12
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# Wii - 13
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# Wii U - 14
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# Switch - 15
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# PC - 16
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# Dreamcast - 17
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# Game Boy Advance - 18
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# PSP - 19
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# Xbox One - 20
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# def platform_to_number(games):
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# for i in range(0, len(games["platform"])):
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#
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# if games["platform"][i] == " PlayStation":
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# games["platform"][i] = 0
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# elif games["platform"][i] == " PlayStation 2":
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# games["platform"][i] = 1
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# elif games["platform"][i] == " PlayStation 3":
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# games["platform"][i] = 2
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# elif games["platform"][i] == " PlayStation 4":
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# games["platform"][i] = 3
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# elif games["platform"][i] == " PlayStation 5":
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# games["platform"][i] = 4
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# elif games["platform"][i] == " PlayStation Vita":
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# games["platform"][i] = 5
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# elif games["platform"][i] == " Xbox":
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# games["platform"][i] = 6
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# elif games["platform"][i] == " Xbox 360":
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# games["platform"][i] = 7
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# elif games["platform"][i] == " Xbox Series X":
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# games["platform"][i] = 8
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# elif games["platform"][i] == " Nintendo 64":
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# games["platform"][i] = 9
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# elif games["platform"][i] == " GameCube":
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# games["platform"][i] = 10
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# elif games["platform"][i] == " DS":
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# games["platform"][i] = 11
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# elif games["platform"][i] == " 3DS":
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# games["platform"][i] = 12
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# elif games["platform"][i] == " Wii":
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# games["platform"][i] = 13
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# elif games["platform"][i] == " Wii U":
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# games["platform"][i] = 14
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# elif games["platform"][i] == " Switch":
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# games["platform"][i] = 15
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# elif games["platform"][i] == " PC":
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# games["platform"][i] = 16
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# elif games["platform"][i] == " Dreamcast":
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# games["platform"][i] = 17
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# elif games["platform"][i] == " Game Boy Advance":
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# games["platform"][i] = 18
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# elif games["platform"][i] == " PSP":
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# games["platform"][i] = 19
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# elif games["platform"][i] == " Xbox One":
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# games["platform"][i] = 20
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#
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# return games
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# old - 0
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# mid - 1
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# new - 2
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def platform_to_number(games):
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for i in range(0, len(games["platform"])):
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if games["platform"][i] == " PlayStation":
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games["platform"][i] = 0
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elif games["platform"][i] == " PlayStation 2":
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games["platform"][i] = 0
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elif games["platform"][i] == " PlayStation 3":
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games["platform"][i] = 1
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elif games["platform"][i] == " PlayStation 4":
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games["platform"][i] = 2
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elif games["platform"][i] == " PlayStation 5":
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games["platform"][i] = 2
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elif games["platform"][i] == " PlayStation Vita":
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games["platform"][i] = 1
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elif games["platform"][i] == " Xbox":
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games["platform"][i] = 0
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elif games["platform"][i] == " Xbox 360":
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games["platform"][i] = 1
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elif games["platform"][i] == " Xbox Series X":
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games["platform"][i] = 2
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elif games["platform"][i] == " Nintendo 64":
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games["platform"][i] = 0
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elif games["platform"][i] == " GameCube":
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games["platform"][i] = 0
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elif games["platform"][i] == " DS":
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games["platform"][i] = 0
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elif games["platform"][i] == " 3DS":
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games["platform"][i] = 1
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elif games["platform"][i] == " Wii":
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games["platform"][i] = 0
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elif games["platform"][i] == " Wii U":
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games["platform"][i] = 1
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elif games["platform"][i] == " Switch":
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games["platform"][i] = 2
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elif games["platform"][i] == " PC":
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dt = datetime.strptime(games["release_date"][i], '%B %d, %Y')
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if (dt.year == 1995 or dt.year == 1996 or dt.year == 1997 or dt.year == 1998
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or dt.year == 1999 or dt.year == 2000 or dt.year == 2001 or dt.year == 2002
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or dt.year == 2003 or dt.year == 2004 or dt.year == 2005):
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games["platform"][i] = 0
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if (dt.year == 2006 or dt.year == 2007 or dt.year == 2008 or dt.year == 2009
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or dt.year == 2010 or dt.year == 2011 or dt.year == 2012 or dt.year == 2013
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or dt.year == 2014 or dt.year == 2015 or dt.year == 2016):
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games["platform"][i] = 1
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if (dt.year == 2017 or dt.year == 2018 or dt.year == 2019
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or dt.year == 2020 or dt.year == 2021):
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games["platform"][i] = 2
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# games["platform"][i] = 0
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elif games["platform"][i] == " Dreamcast":
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games["platform"][i] = 0
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elif games["platform"][i] == " Game Boy Advance":
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games["platform"][i] = 0
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elif games["platform"][i] == " PSP":
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games["platform"][i] = 1
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elif games["platform"][i] == " Xbox One":
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games["platform"][i] = 2
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return games
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games = pd.read_csv('/dane/all_games.csv', sep=',')
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games = platform_to_number(games)
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games = delete_stadia(games)
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games = delete_tbd(games)
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games = user_review_to_numeric(games)
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games = normalization(games)
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games.drop(['level_0', 'index'], axis='columns', inplace=True)
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labels_g = pd.DataFrame(games["platform"], dtype=np.int64)
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labels_g = labels_g.to_numpy()
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features_g = {'meta_score': games['meta_score'],
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'user_review': games['user_review']}
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features_g = pd.DataFrame(features_g, dtype=np.float64)
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features_g = features_g.to_numpy()
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features_train_g, features_test_g, labels_train_g, labels_test_g = train_test_split(features_g,
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labels_g,
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random_state=1,
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shuffle=True)
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# Training
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model = Model(features_train_g.shape[1])
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optimizer = torch.optim.Adam(model.parameters(), lr=0.01)
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loss_fn = nn.CrossEntropyLoss()
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epochs = 1000
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def print_(loss):
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print ("The loss calculated: ", loss)
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# Not using dataloader
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x_train, y_train = Variable(torch.from_numpy(features_train_g)).float(), Variable(torch.from_numpy(labels_train_g)).long()
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for epoch in range(1, epochs + 1):
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print("Epoch #", epoch)
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y_pred = model(x_train)
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loss = loss_fn(y_pred, y_train.squeeze(-1))
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print_(loss.item())
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# Zero gradients
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optimizer.zero_grad()
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loss.backward() # Gradients
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optimizer.step() # Update
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# Prediction
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x_test = Variable(torch.from_numpy(features_test_g)).float()
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pred = model(x_test)
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pred = pred.detach().numpy()
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print("The accuracy is", accuracy_score(labels_test_g, np.argmax(pred, axis=1)))
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pred = pd.DataFrame(pred)
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pred.to_csv('result.csv') |