[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify the code snippets into categories from the provided list of categories. List of categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']"}, {'role': 'user', 'content': "Identify to which category the provided code belongs and assign the code snippet to at least 1 but up to 5 categories based on the probabilities, ignore if the probability of the category is negligible. Strictly provide your response as a list. Avoid providing any additional information, commentary, or personal opinions.\\nPython Code:np.random.seed(0)\nvectorizer_process = CountVectorizer(preprocessor = empty_preprocessor,analyzer='word',stop_words='english' )\nword_matrix_process= vectorizer_process.fit_transform(train_all)\ndev_matrix_process = vectorizer_process.transform(dev_all)\nmax=0\nl1=0\nl2=0\nfor i in range(500,700,10):\nfor j in range(1,50,1):\nacc=tune_para(i,j)\nif acc>max:\nmax=acc\nl1=i\nl2=j\nprint('When l1=%i ,l2=%i , f1 score is %f' %(l1,l2,max))"}, {'role': 'assistant', 'content': "['data_preprocessing', 'modelling']"}]