| { |
| "sample_size": { |
| "total": 757207146, |
| "train": 586117494, |
| "valid": 17846140, |
| "test": 153243512, |
| "phase1_total_interactions": 976291071 |
| }, |
| "split_by_minimal_tail_with_positive_constraints": { |
| "timezone": "Asia/Shanghai", |
| "timestamp_unit": "s", |
| "train_days": 226, |
| "train_range": "2024-10-15 ~ 2025-05-28", |
| "valid_days": 1, |
| "valid_range": "2025-05-29 ~ 2025-05-29", |
| "test_days": 68, |
| "test_range": "2025-05-30 ~ 2025-08-05", |
| "valid_click_pos": 841303, |
| "valid_conversion_pos": 396010, |
| "test_click_pos": 553866, |
| "test_conversion_pos": 250843, |
| "rule": "test=最后最短合法正样本时间段; valid=紧邻test的最短合法正样本时间段; 其余=train" |
| }, |
| "user_filtering": { |
| "min_user_interactions": 10, |
| "dropped_all_negative_users": 2424604, |
| "rule": "用户完整行为序列若既无 click 也无 conversion，则过滤" |
| }, |
| "oov_filter": { |
| "min_feat_count": 2, |
| "applied_to": { |
| "scalar_features": [ |
| "103", |
| "104", |
| "105", |
| "109", |
| "100", |
| "101", |
| "102", |
| "112", |
| "114", |
| "115", |
| "116", |
| "117", |
| "118", |
| "119", |
| "120", |
| "121", |
| "122" |
| ], |
| "list_features": [ |
| "106", |
| "107", |
| "108", |
| "110" |
| ] |
| }, |
| "rule": "特征值出现次数 < min_feat_count 的统一映射为 0 (unknown/padding)", |
| "freq_source": "基于日志中 user/item 出现次数 * 特征值计算" |
| }, |
| "blocked_layout": { |
| "train_blocks": 16, |
| "valid_blocks": 8, |
| "test_blocks": 8, |
| "train": { |
| "data_dir": "train/data", |
| "user_info_dir": "train/user_info", |
| "item_info_dir": "train/item_info" |
| }, |
| "valid": { |
| "data_dir": "valid/data", |
| "user_info_dir": "valid/user_info", |
| "item_info_dir": "valid/item_info" |
| }, |
| "test": { |
| "data_dir": "test/data", |
| "user_info_dir": "test/user_info", |
| "item_info_dir": "test/item_info" |
| }, |
| "block_pair_rule": "同一 split 下，data/user_info/item_info 使用相同的 part-xxxxx 编号配对读取。", |
| "local_index_rule": { |
| "user_index": "block-local dense index, starts from 0", |
| "item_index": "block-local dense index, 0 reserved for padding", |
| "user_id": "global feature id, consistent across blocks", |
| "item_id": "global feature id, consistent across blocks" |
| } |
| }, |
| "vocab_size": { |
| "user_id": 7706779, |
| "item_id": 17487677, |
| "timestamp": 0, |
| "action": 4, |
| "103": 88, |
| "104": 3, |
| "105": 8, |
| "109": 4, |
| "106": 15, |
| "107": 20, |
| "108": 5, |
| "110": 3, |
| "100": 7, |
| "101": 54, |
| "102": 173463, |
| "112": 31, |
| "114": 34, |
| "115": 989, |
| "116": 21, |
| "117": 559, |
| "118": 1637, |
| "119": 4951, |
| "120": 4046, |
| "121": 5041300, |
| "122": 2389, |
| "day_of_week": 8, |
| "is_weekend": 3, |
| "hour": 25 |
| }, |
| "label": [ |
| "is_click", |
| "is_conversion" |
| ], |
| "action_vocab": { |
| "click": 1, |
| "conversion": 2, |
| "exposure": 3 |
| }, |
| "action_vocab_desc": "编码后的 action 词表，用于 dataloader 基于 full_action_seq 构造 task-specific token masks。", |
| "action_mapping": { |
| "raw_action_type_to_name": { |
| "0": "exposure", |
| "1": "click", |
| "2": "conversion" |
| }, |
| "action_name_to_code": { |
| "click": 1, |
| "conversion": 2, |
| "exposure": 3 |
| } |
| }, |
| "user_info_schema": { |
| "fields": [ |
| "user_index", |
| "full_item_seq", |
| "full_action_seq", |
| "full_timestamp_seq" |
| ], |
| "desc": "这里的 user_index / full_item_seq 中的 item index 都是 block-local index；full_action_seq / full_timestamp_seq 为全局时间顺序序列。" |
| }, |
| "item_info_schema": { |
| "fields": [ |
| "item_index", |
| "item_id", |
| "100", |
| "101", |
| "102", |
| "112", |
| "114", |
| "115", |
| "116", |
| "117", |
| "118", |
| "119", |
| "120", |
| "121", |
| "122" |
| ], |
| "desc": "item_index 为 block-local index；item_id 为全局 item feature id，用于 embedding 一致性。" |
| }, |
| "feature_schema": { |
| "user_scalar_features": [ |
| "103", |
| "104", |
| "105", |
| "109" |
| ], |
| "user_list_features": [ |
| "106", |
| "107", |
| "108", |
| "110" |
| ], |
| "user_list_keep": 5, |
| "user_list_storage": "single-column list[int] with fixed length", |
| "user_scalar_encoding": "keep raw integer ids; vocab_size=max+1; OOV filtered", |
| "user_list_encoding": "keep raw list[int]; vocab_size=max_sub_feature_id+1; OOV filtered", |
| "item_static_features": [ |
| "100", |
| "101", |
| "102", |
| "112", |
| "114", |
| "115", |
| "116", |
| "117", |
| "118", |
| "119", |
| "120", |
| "121", |
| "122" |
| ], |
| "item_static_encoding": "keep raw integer ids; vocab_size=max+1; OOV filtered", |
| "context_features": [ |
| "day_of_week", |
| "is_weekend", |
| "hour" |
| ], |
| "time_feature_encoding": { |
| "day_of_week": "0~6 -> 1~7, 0 reserved for padding/unknown", |
| "is_weekend": "0/1 -> 1~2, 0 reserved for padding/unknown", |
| "hour": "0~23 -> 1~24, 0 reserved for padding/unknown" |
| }, |
| "timestamp_kept_raw": true, |
| "context_time_timezone": "Asia/Shanghai" |
| }, |
| "max_len": { |
| "full_item_seq": 100, |
| "full_action_seq": 100, |
| "full_timestamp_seq": 100 |
| }, |
| "raw_action_type_counter": { |
| "0": 923826708, |
| "1": 27813405, |
| "2": 24650958 |
| } |
| } |
