[{'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:from stop_words import get_stop_words\nfrom nltk.stem.porter import PorterStemmer\nfrom gensim import corpora, models\nimport gensim\nimport nltk\nimport os\nfrom time import time\nfrom collections import defaultdict\nimport numpy as np\nimport pandas as pd\nimport gensim\nfrom gensim import corpora, utils\nfrom gensim.corpora.dictionary import Dictionary\nfrom gensim.models.wrappers.dtmmodel import DtmModel\nfrom sklearn.feature_extraction.text import TfidfVectorizer, CountVectorizer\nfrom sklearn.decomposition import NMF, LatentDirichletAllocation\nimport matplotlib\nimport matplotlib.pyplot as plt\nfrom dateutil import parser\nimport datetime\nimport random\n%matplotlib inline'}, {'role': 'assistant', 'content': "['helper_functions']"}]