Import necessary libraries

import pandas as pd import numpy as np import matplotlib.pyplot as plt import seaborn as sns import re from nltk.corpus import stopwords from sklearn.model_selection import train_test_split from sklearn.metrics import accuracy_score, classification_report from transformers import BertTokenizer, BertForSequenceClassification, AdamW import torch from torch.utils.data import DataLoader, TensorDataset, random_split

Load the training and testing datasets

train_essays = pd.read_csv("/kaggle/input/llm-detect-ai-generated-text/train_essays.csv") test_essays = pd.read_csv("/kaggle/input/llm-detect-ai-generated-text/test_essays.csv")