{"id":32149,"date":"2024-11-01T09:06:04","date_gmt":"2024-11-01T09:06:04","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=32149"},"modified":"2024-11-01T11:19:54","modified_gmt":"2024-11-01T11:19:54","slug":"deep-learning-for-natural-language-processing-splitting-data","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/32149\/","title":{"rendered":"Deep Learning for Natural Language Processing, Splitting Data"},"content":{"rendered":"<p><body><\/p>\n<p>Natural language processing is one of the fastest-growing fields in today&#8217;s artificial intelligence sector. In particular, the advancement of deep learning technologies has brought about revolutionary changes in solving natural language processing (NLP) problems. In this article, we will explain in detail the data processing processes that can occur in NLP, particularly the importance of data splitting. Data splitting is a critical factor that significantly affects the performance of models and must be conducted using the correct methods.<\/p>\n<h2>1. The Importance of Data Splitting<\/h2>\n<p>Data splitting is one of the fundamental tasks in data science and machine learning. Since the quality of the data determines the success or failure of the model, the process of splitting data into training, validation, and test sets is very important. If the data is not well separated, the model may overfit or fail to generalize.<\/p>\n<h2>2. Basic Concepts of Data Splitting<\/h2>\n<p>Generally, to train a natural language processing model, three types of data sets are used:<\/p>\n<ul>\n<li><strong>Training Set:<\/strong> The dataset used for the model to learn. It learns the correct answer (label) for given inputs.<\/li>\n<li><strong>Validation Set:<\/strong> This set is used to tune the hyperparameters of the model and validate the model&#8217;s generalization performance.<\/li>\n<li><strong>Test Set:<\/strong> The data used to evaluate the performance of the final model, which is never used during the model training process.<\/li>\n<\/ul>\n<h2>3. Methods of Data Splitting<\/h2>\n<p>There are various methods to split data. The most common methods include random sampling and stratified sampling. Let&#8217;s take a look at each method below.<\/p>\n<h3>3.1 Random Sampling<\/h3>\n<p>Random sampling is the simplest method of data splitting. It involves randomly selecting samples from the entire dataset to divide into training and validation\/test sets. The advantage of this method is that it is simple and quick to implement. However, it can cause problems if the data distribution is imbalanced.<\/p>\n<div class=\"code-block\">\n<code><br \/>\n        from sklearn.model_selection import train_test_split<br \/>\n        train_data, temp_data = train_test_split(data, test_size=0.2, random_state=42)<br \/>\n        val_data, test_data = train_test_split(temp_data, test_size=0.5, random_state=42)<br \/>\n<\/code>\n<\/div>\n<h3>3.2 Stratified Sampling<\/h3>\n<p>Stratified sampling is a method that extracts samples while maintaining the distribution of the data. It is particularly useful for datasets where the classes are unevenly distributed. Using this method helps to maintain similar ratios of each class in both the training and validation\/test sets.<\/p>\n<div class=\"code-block\">\n<code><br \/>\n        from sklearn.model_selection import StratifiedShuffleSplit<br \/>\n        sss = StratifiedShuffleSplit(n_splits=1, test_size=0.2, random_state=42)<br \/>\n        for train_index, test_index in sss.split(data, labels):<br \/>\n            train_data = data.loc[train_index]<br \/>\n            test_data = data.loc[test_index]<br \/>\n<\/code>\n<\/div>\n<h2>4. Data Preprocessing and Splitting<\/h2>\n<p>In natural language processing, data preprocessing is essential. During the preprocessing stage, text data is cleaned, stop words are removed, tokenization is performed, and then this data is split into training, validation, and test sets. It is common to perform data splitting after data preprocessing.<\/p>\n<h3>4.1 Example of the Preprocessing Stage<\/h3>\n<div class=\"code-block\">\n<code><br \/>\n        import pandas as pd<br \/>\n        from sklearn.model_selection import train_test_split<\/p>\n<p>        # Load data<br \/>\n        data = pd.read_csv('data.csv')<\/p>\n<p>        # Preprocessing<br \/>\n        data['text'] = data['text'].apply(lambda x: x.lower())  # Convert to lowercase<br \/>\n        data['text'] = data['text'].str.replace('[^a-zA-Z]', '')  # Remove special characters<\/p>\n<p>        # Data splitting<br \/>\n        train_data, temp_data = train_test_split(data, test_size=0.2, random_state=42)<br \/>\n        val_data, test_data = train_test_split(temp_data, test_size=0.5, random_state=42)<br \/>\n<\/code>\n<\/div>\n<h2>5. Optimal Data Splitting Ratios<\/h2>\n<p>The ratio for splitting data can vary depending on the characteristics of the problem and the amount of data. Generally, it is common to split the training set, validation set, and test set in a ratio of 70:15:15 or 80:10:10. However, if the amount of data is small or imbalanced, these ratios may need to be adjusted.<\/p>\n<p>It is advisable to adjust the size of the validation set considering hyperparameter tuning during the data splitting process. Proper data splitting is essential for the model to perform at its best.<\/p>\n<h2>6. Conclusion<\/h2>\n<p>Data splitting is essential for training deep learning-based natural language processing models. In particular, the separation of data has a direct impact on the improvement of model performance. Therefore, it is crucial to choose appropriate data splitting methods through various methodologies and understand the characteristics of each set. As a result, a more reliable generalization model can be built.<\/p>\n<h2>Additional Information<\/h2>\n<p>If you want to learn more about data splitting in natural language processing, please refer to the following materials:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.google.com\">NLP with Deep Learning Course<\/a><\/li>\n<li><a href=\"https:\/\/www.google.com\">Machine Learning Mastery on Data Preparation<\/a><\/li>\n<li><a href=\"https:\/\/www.google.com\">Research Papers on Data Splitting Techniques<\/a><\/li>\n<\/ul>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Natural language processing is one of the fastest-growing fields in today&#8217;s artificial intelligence sector. In particular, the advancement of deep learning technologies has brought about revolutionary changes in solving natural language processing (NLP) problems. In this article, we will explain in detail the data processing processes that can occur in NLP, particularly the importance of &hellip; <a href=\"https:\/\/atmokpo.com\/w\/32149\/\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;Deep Learning for Natural Language Processing, Splitting Data&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[104],"tags":[],"class_list":["post-32149","post","type-post","status-publish","format-standard","hentry","category---en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Deep Learning for Natural Language Processing, Splitting Data - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atmokpo.com\/w\/32149\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Deep Learning for Natural Language Processing, Splitting Data - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"Natural language processing is one of the fastest-growing fields in today&#8217;s artificial intelligence sector. 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