[{'role': 'system', 'content': "You are an expert in machine learning and your task is to classify code snippets into one of the following categories: ['helper_functions', 'load_data', 'data_exploration', 'data_preprocessing', 'evaluation', 'modelling', 'prediction', 'result_visualization', 'save_results', 'comment_only']."}, {'role': 'user', 'content': 'Identify the single most appropriate category to which the provided code belongs. Provide your response as a single category label without any additional information, commentary, or personal opinions.\\nPython Code:movie_index = random.choice(range(len(pivot_table.index)))\nmovie_recommendations = pd.Series()\nfor i in range(0, len(pivot_table.ix[movie_index].dropna().index)):\nsims = movie_corr[pivot_table.ix[movie_index].dropna().index[i]].dropna()\nsims = sims.map(lambda x: x*pivot_table.ix[movie_index].dropna()[i])\nmovie_recommendations = movie_recommendations.append(sims)\ntotal_recommendations = movie_recommendations.sort_values(ascending=False).groupby(movie_recommendations.sort_values(ascending=False).index).tail(1)\nmask = total_recommendations.index.isin(pivot_table.ix[movie_index].dropna().index)\ndisplayed_recommendations = total_recommendations[~mask]\nprint(displayed_recommendations[displayed_recommendations > 0][:5])'}, {'role': 'assistant', 'content': 'modelling'}]