{ "schema": "movie-fields-v1", "source": "official MovieLens 100K", "sample_policy": "leave-one-out-windows", "past_order": "oldest-first", "history_length": 5, "stride": 1, "shuffle_seed": 42, "timestamp_policy": "rating timestamp then original u.data row ordinal; ties are not verified watch order", "target_policy": "immediate next interaction, any rating; final interaction held out per user", "catalog_items": 1682, "split_counts": { "train": 94342, "test": 943 }, "history_rows": 943, "seen_items_filtered": false, "movies_with_actors": 1618, "actor_join_methods": { "unique_official_movielens_title_year_link_imdb_year_checked": 1268, "unique_title_adjacent_release_year_inferred": 56, "unique_imdb_title_year": 268, "unmatched": 31, "explicit_imdb_id_in_original_url": 53, "ambiguous_title_year": 6 }, "source_events": 100000, "users": 943, "users_too_short": 0, "timestamp_ties": 50561, "held_out_events_in_train": 0, "plot_enrichment": { "source_dataset": "E:\\Programming\\Github works\\tyrec-codex-updated\\tyrec\\data\\recommendations_loo\\ml_100k", "plot_passages": "E:\\Programming\\Github works\\ml\\query_expansion\\truth_data\\movielens_100k_movie_passages_20260924\\movie_passages.jsonl", "split_counts": { "train": 94342, "test": 943 }, "catalog_items": 1682, "plot_status_counts": { "with_plot": 1515, "metadata_only_missing_plot": 167 }, "byte_identical_files": [ "train.jsonl", "test.jsonl", "histories.jsonl", "actor_sources.json" ], "metadata_and_history_unchanged": true, "search_text_recipe": "text + newline + plot_text; empty plot leaves text unchanged", "plots_in_model_input": false, "sample_rebuild": false, "new_relevance_labels": false } }