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The dataset generation failed
Error code:   DatasetGenerationError
Exception:    ArrowInvalid
Message:      Schema at index 1 was different: 
global_k8300: struct<selected: struct<hit: int64, of: int64, hit_frac: double, gini: double, max_per_cluster: int64>, random: struct<hit: int64, of: int64, hit_frac: double, gini: double, max_per_cluster: int64>>
stratum_oe_0_30_s_youtube: struct<stratum_size: int64, picked: int64, k: int64, selected: struct<hit: int64, of: int64, hit_frac: double, gini: double, max_per_cluster: int64>, random: struct<hit: int64, of: int64, hit_frac: double, gini: double, max_per_cluster: int64>>
vs
target: int64
selected: int64
alpha: double
floor: int64
seed: int64
distinct_media: int64
media_GiB: double
by_task: struct<cap: int64, mc: int64, oe: int64>
by_bucket: struct<0_30_s: int64, 1_2_m: int64, 2_3_m: int64, 30_60_s: int64, llava_hound: int64>
by_family: struct<academic: int64, activitynetqa: int64, llava_hound: int64, nextqa: int64, perceptiontest: int64, youtube: int64>
qa_pairs: int64
mc_pick_longest: double
mc_pick_longest_full: double
mc_swaps: int64
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1868, in _prepare_split_single
                  num_examples, num_bytes = writer.finalize()
                                            ~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/arrow_writer.py", line 803, in finalize
                  self.write_rows_on_file()
                  ~~~~~~~~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/arrow_writer.py", line 662, in write_rows_on_file
                  table = pa.concat_tables(self.current_rows)
                File "pyarrow/table.pxi", line 6268, in pyarrow.lib.concat_tables
                File "pyarrow/error.pxi", line 155, in pyarrow.lib.pyarrow_internal_check_status
                  return check_status(status)
                File "pyarrow/error.pxi", line 92, in pyarrow.lib.check_status
                  raise convert_status(status)
              pyarrow.lib.ArrowInvalid: Schema at index 1 was different: 
              global_k8300: struct<selected: struct<hit: int64, of: int64, hit_frac: double, gini: double, max_per_cluster: int64>, random: struct<hit: int64, of: int64, hit_frac: double, gini: double, max_per_cluster: int64>>
              stratum_oe_0_30_s_youtube: struct<stratum_size: int64, picked: int64, k: int64, selected: struct<hit: int64, of: int64, hit_frac: double, gini: double, max_per_cluster: int64>, random: struct<hit: int64, of: int64, hit_frac: double, gini: double, max_per_cluster: int64>>
              vs
              target: int64
              selected: int64
              alpha: double
              floor: int64
              seed: int64
              distinct_media: int64
              media_GiB: double
              by_task: struct<cap: int64, mc: int64, oe: int64>
              by_bucket: struct<0_30_s: int64, 1_2_m: int64, 2_3_m: int64, 30_60_s: int64, llava_hound: int64>
              by_family: struct<academic: int64, activitynetqa: int64, llava_hound: int64, nextqa: int64, perceptiontest: int64, youtube: int64>
              qa_pairs: int64
              mc_pick_longest: double
              mc_pick_longest_full: double
              mc_swaps: int64
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1694, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1879, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset

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id
string
conversations
list
data_source
string
video
string
203-Qh_rtJaCpXs-split_6
[ { "from": "human", "value": "<image>\nWhere does the video take place?\nA. A bakery\nB. A professional kitchen\nC. A home kitchen\nD. An outdoor barbecue\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "B. A professional kitchen." },...
0_30_s_academic_v0_1
academic_source/youcook2/203/Qh_rtJaCpXs/split_6.mp4
203-Qh_rtJaCpXs-split_6
[ { "from": "human", "value": "<image>\nWhat is the chef wearing in the video?\nA. A black chef's coat and a white apron\nB. A red chef's coat and a green apron\nC. A blue chef's coat and a yellow apron\nD. A white chef's coat and a striped apron\nPlease respond with only the letter of the correct answer." ...
0_30_s_academic_v0_1
academic_source/youcook2/203/Qh_rtJaCpXs/split_6.mp4
B7SZJ
[ { "from": "human", "value": "<image>\nWhat does the person do after re-entering the room for the first time?\nA. They close the door behind them\nB. They turn on the light\nC. They start reading a book\nD. They sit on the bed\nPlease provide your answer by stating the letter followed by the full option." ...
0_30_s_academic_v0_1
academic_source/Charades/B7SZJ.mp4
425-pOWe4zB-E-4-split_5
[ { "from": "human", "value": "<image>\nWhat is the person primarily doing in the video?\nA. Preparing a batter-based dish\nB. Boiling pasta\nC. Baking a cake\nD. Chopping vegetables\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "A. Pr...
0_30_s_academic_v0_1
academic_source/youcook2/425/pOWe4zB-E-4/split_5.mp4
MLS4T
[ { "from": "human", "value": "<image>\nWhat does the person do after drinking from the red cup?\nA. They wash the red cup\nB. They open the refrigerator\nC. They sit down at the table\nD. They place the red cup back on the countertop and exit the frame\nPlease respond with only the letter of the correct answ...
0_30_s_academic_v0_1
academic_source/Charades/MLS4T.mp4
MZK2X
[ { "from": "human", "value": "<image>\nWhat is the main setting of the video?\nA. An office\nB. A living room\nC. A kitchen\nD. A bedroom\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "B." }, { "from": "human", "value": "What item is on top ...
0_30_s_academic_v0_1
academic_source/Charades/MZK2X.mp4
422-fSY-uG_uayI-split_6
[ { "from": "human", "value": "<image>\nWhat does the person do after picking up the dumplings with chopsticks?\nA. The person eats the dumplings\nB. The person places the dumplings into the pan\nC. The person adds more oil to the pan\nD. The person stirs the liquid\nPlease provide your answer by stating the ...
0_30_s_academic_v0_1
academic_source/youcook2/422/fSY-uG_uayI/split_6.mp4
422-fSY-uG_uayI-split_6
[ { "from": "human", "value": "<image>\nWhat is the person doing in the video?\nA. The person is stirring the liquid and adding dumplings to the pan\nB. The person is cleaning the kitchen\nC. The person is baking a cake\nD. The person is preparing a salad\nPlease provide your answer by stating the letter foll...
0_30_s_academic_v0_1
academic_source/youcook2/422/fSY-uG_uayI/split_6.mp4
105-uxEhH6MPH28-split_3
[ { "from": "human", "value": "<image>\nWhat does the hand do after sprinkling the reddish-brown powder?\nA. The hand starts mixing the powders\nB. The hand sprinkles a light brown powder\nC. The hand sprinkles a white powder\nD. The hand removes the baking dish\nPlease provide your answer by stating the lett...
0_30_s_academic_v0_1
academic_source/youcook2/105/uxEhH6MPH28/split_3.mp4
318-bpogVeh1pRw-split_1
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. The person is organizing the kitchen cabinets\nB. The person is cleaning the kitchen\nC. The person is preparing a dish by adding ingredients to a bowl\nD. The person is setting the microwave\nPlease provide your answer by statin...
0_30_s_academic_v0_1
academic_source/youcook2/318/bpogVeh1pRw/split_1.mp4
102-EP2OBrPPWtU-split_3
[ { "from": "human", "value": "<image>\nWhat is the hand holding at the beginning of the video?\nA. A fork\nB. A whisk\nC. A spoon\nD. A knife\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "C. A spoon." }, { "from": "human", ...
0_30_s_academic_v0_1
academic_source/youcook2/102/EP2OBrPPWtU/split_3.mp4
116-NNEpaEq7OpI-split_0
[ { "from": "human", "value": "<image>\nWhat is the hand holding while stirring the mixture?\nA. A green whisk\nB. A blue spatula\nC. A red spatula\nD. A white spoon\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "C. A red spatula." }...
0_30_s_academic_v0_1
academic_source/youcook2/116/NNEpaEq7OpI/split_0.mp4
221-i4ZAwUoP8c4-split_6
[ { "from": "human", "value": "<image>\nWhat is the initial scene of the video?\nA. A person peeling a carrot\nB. A kitchen with various utensils\nC. A person chopping garlic\nD. A string of dried red chili peppers\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "v...
0_30_s_academic_v0_1
academic_source/youcook2/221/i4ZAwUoP8c4/split_6.mp4
221-i4ZAwUoP8c4-split_6
[ { "from": "human", "value": "<image>\nWhat does the person do after peeling the carrot?\nA. Hanging dried chili peppers\nB. Chopping the garlic\nC. Peeling garlic cloves\nD. Slicing the carrot into round pieces\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "val...
0_30_s_academic_v0_1
academic_source/youcook2/221/i4ZAwUoP8c4/split_6.mp4
1007-2632387219
[ { "from": "human", "value": "<image>\nWhat does the person on the right do after receiving the coin?\nA. Throws it away\nB. Gives it to the person on the left\nC. Puts it in his pocket\nD. Examines it and holds it up\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", ...
0_30_s_academic_v0_1
academic_source/NextQA/1007/2632387219.mp4
1007-2632387219
[ { "from": "human", "value": "<image>\nWhat is the person on the left wearing?\nA. A red jacket\nB. A gray and white striped shirt and glasses\nC. A blue shirt\nD. A dark gray t-shirt with white text\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "B." ...
0_30_s_academic_v0_1
academic_source/NextQA/1007/2632387219.mp4
106-5olHoTWB1Hw-split_4
[ { "from": "human", "value": "<image>\nWhat happens after the black pepper is added to the white creamy mixture?\nA. The mixture is stirred\nB. The mixture is poured into another container\nC. A reddish-brown spice is sprinkled on top\nD. The bowl is placed in the refrigerator\nPlease respond with only the l...
0_30_s_academic_v0_1
academic_source/youcook2/106/5olHoTWB1Hw/split_4.mp4
1162-2467532859
[ { "from": "human", "value": "<image>\nWhat is the woman doing throughout the video?\nA. Sitting on a folding chair\nB. Standing and walking\nC. Lying on the grass\nD. Kneeling on the ground\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value...
0_30_s_academic_v0_1
academic_source/NextQA/1162/2467532859.mp4
203-vpRz4jPFCmo-split_7
[ { "from": "human", "value": "<image>\nWhat is the main activity shown in the video?\nA. Boiling water\nB. Cooking spaghetti\nC. Adding salt to water\nD. Cleaning a pot\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "B. Cooking spaghet...
0_30_s_academic_v0_1
academic_source/youcook2/203/vpRz4jPFCmo/split_7.mp4
L8T4O
[ { "from": "human", "value": "<image>\nWhat does the person do after picking up the black laptop from the table?\nA. They sit down at the desk\nB. They place it back on the table\nC. They examine it and hold it close to their chest\nD. They turn on the television\nPlease provide your answer by stating the le...
0_30_s_academic_v0_1
academic_source/Charades/L8T4O.mp4
L8T4O
[ { "from": "human", "value": "<image>\nWhat is the person wearing in the video?\nA. A white shirt and blue jeans\nB. A dark gray shirt and khaki pants\nC. A red dress and black shoes\nD. A black suit and tie\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value":...
0_30_s_academic_v0_1
academic_source/Charades/L8T4O.mp4
410-g1jFJYtQ9_s-split_2
[ { "from": "human", "value": "<image>\nWhat is the background setting in the video?\nA. A dark, speckled countertop with a small white measuring cup\nB. A kitchen island with various utensils\nC. A wooden table with a rolling pin\nD. A marble countertop with a bowl of fruits\nPlease respond with only the let...
0_30_s_academic_v0_1
academic_source/youcook2/410/g1jFJYtQ9_s/split_2.mp4
210-jGC0VhFCk5Y-split_6
[ { "from": "human", "value": "<image>\nWhat is the person wearing in the video?\nA. A green shirt and a yellow apron\nB. A black shirt and a white apron\nC. A white shirt and a purple apron\nD. A red shirt and a blue apron\nPlease provide your answer by stating the letter followed by the full option." }, ...
0_30_s_academic_v0_1
academic_source/youcook2/210/jGC0VhFCk5Y/split_6.mp4
WF7P3
[ { "from": "human", "value": "<image>\nWhat is the man wearing in the video?\nA. A red shirt with jeans and sneakers\nB. A blue suit with black shoes\nC. A white t-shirt with shorts and sandals\nD. A light brown traditional outfit with a white sleeveless sweater and black slippers\nPlease respond with only t...
0_30_s_academic_v0_1
academic_source/Charades/WF7P3.mp4
1200-9088819598
[ { "from": "human", "value": "<image>\nWhat new element is introduced in the final part of the video?\nA. A pillow\nB. A blanket\nC. A gray cloth\nD. A new toy\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "C." }, { "from": "human", "value":...
0_30_s_academic_v0_1
academic_source/NextQA/1200/9088819598.mp4
v_hwGvU9Csz98
[ { "from": "human", "value": "<image>\nWhere does the video take place?\nA. In a city\nB. In a desert\nC. In a wooded area\nD. On a beach\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "C." }, { "from": "human", "value": "What is the rider we...
0_30_s_academic_v0_1
academic_source/activitynet/v_hwGvU9Csz98.mp4
410-gRoxcqIRXOU-split_3
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. Baking bread\nB. Eating bread\nC. Cutting and shaping dough\nD. Decorating bread\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "C." }, { "from": "human", "value"...
0_30_s_academic_v0_1
academic_source/youcook2/410/gRoxcqIRXOU/split_3.mp4
CZ0MP
[ { "from": "human", "value": "<image>\nWhat is the main activity of the person in the video?\nA. Rearranging shoes\nB. Examining a small object\nC. Cleaning the hallway\nD. Talking on the phone\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "B." }, {...
0_30_s_academic_v0_1
academic_source/Charades/CZ0MP.mp4
321-dB4SW9-y13U-split_3
[ { "from": "human", "value": "<image>\nWhat happens after the white powder is sprinkled over the chicken?\nA. The chicken is coated with the white powder\nB. The chicken is served\nC. The chicken is marinated\nD. The chicken is cooked\nPlease respond with only the letter of the correct answer." }, { ...
0_30_s_academic_v0_1
academic_source/youcook2/321/dB4SW9-y13U/split_3.mp4
JT537
[ { "from": "human", "value": "<image>\nWhat is the person wearing in the video?\nA. Red t-shirt, black jeans, white sneakers\nB. Black t-shirt, grey pants, red shoes\nC. Green t-shirt, blue shorts, brown sandals\nD. White t-shirt, blue jeans, black sandals\nPlease provide your answer by stating the letter fo...
0_30_s_academic_v0_1
academic_source/Charades/JT537.mp4
307-BYoZz07Y_CY-split_2
[ { "from": "human", "value": "<image>\nWhat is the capacity of the Mizkan rice vinegar bottle shown in the video?\nA. 750 mL\nB. 250 mL\nC. 355 mL\nD. 500 mL\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "C." }, { "from": "human", "value": "...
0_30_s_academic_v0_1
academic_source/youcook2/307/BYoZz07Y_CY/split_2.mp4
307-BYoZz07Y_CY-split_2
[ { "from": "human", "value": "<image>\nWhat is the main activity shown in the video?\nA. Cooking a meal\nB. Cleaning the kitchen\nC. Decorating a cake\nD. Measuring and mixing ingredients\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": ...
0_30_s_academic_v0_1
academic_source/youcook2/307/BYoZz07Y_CY/split_2.mp4
127-rMaWiWAg2tE-split_8
[ { "from": "human", "value": "<image>\nWhat is the person doing with the lettuce in the video?\nA. Washing it\nB. Cooking it\nC. Chopping it\nD. Eating it\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "C." }, { "from": "human", "value": "Wha...
0_30_s_academic_v0_1
academic_source/youcook2/127/rMaWiWAg2tE/split_8.mp4
405-jpQBWsR3HHs-split_5
[ { "from": "human", "value": "<image>\nWhat happens after the lid is removed from the pot?\nA. Steam rises, revealing a rich, savory stew\nB. The person starts eating the stew\nC. The pot is placed back on the stove\nD. The person adds more ingredients\nPlease respond with only the letter of the correct answ...
0_30_s_academic_v0_1
academic_source/youcook2/405/jpQBWsR3HHs/split_5.mp4
405-jpQBWsR3HHs-split_5
[ { "from": "human", "value": "<image>\nWhat is the color of the spatula used in the video?\nA. Green\nB. Red\nC. Blue\nD. Yellow\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "D. Yellow." } ]
0_30_s_academic_v0_1
academic_source/youcook2/405/jpQBWsR3HHs/split_5.mp4
221-HXqC_xWsKkY-split_7
[ { "from": "human", "value": "<image>\nWhat is the hand doing in the video?\nA. Stirring the mixture with a black spatula\nB. Adding ingredients to the pot\nC. Both B and C\nD. Turning the dial on the appliance\nPlease provide your answer by stating the letter followed by the full option." }, { "from...
0_30_s_academic_v0_1
academic_source/youcook2/221/HXqC_xWsKkY/split_7.mp4
314-C4ROaIjK6Fs-split_6
[ { "from": "human", "value": "<image>\nWhat is the main activity shown in the video?\nA. Cleaning the kitchen\nB. Eating a meal\nC. Shopping for groceries\nD. Preparing a meal\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "D. Preparin...
0_30_s_academic_v0_1
academic_source/youcook2/314/C4ROaIjK6Fs/split_6.mp4
AKO6M
[ { "from": "human", "value": "<image>\nWhat is the setting of the video?\nA. A living room\nB. A bathroom\nC. A kitchen\nD. A bedroom\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "B." }, { "from": "human", "value": "What is the person in th...
0_30_s_academic_v0_1
academic_source/Charades/AKO6M.mp4
S67WR
[ { "from": "human", "value": "<image>\nWhere does the video take place?\nA. In a garden\nB. In a small, dimly lit room\nC. In a kitchen\nD. In a large, brightly lit room\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "B. In a small, di...
0_30_s_academic_v0_1
academic_source/Charades/S67WR.mp4
204-SRdsaqpnfd4-split_4
[ { "from": "human", "value": "<image>\nWhat is the person wearing in the video?\nA. A gray shirt and blue jeans\nB. A white apron and black pants\nC. A red shirt and khaki shorts\nD. A black t-shirt and white shorts\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", ...
0_30_s_academic_v0_1
academic_source/youcook2/204/SRdsaqpnfd4/split_4.mp4
405-p1RgI4R8VX4-split_1
[ { "from": "human", "value": "<image>\nWhat are the characteristics of the kitchen in the video?\nA. White walls, glass accents, and minimalist shelving\nB. Green walls, metal accents, and rustic shelving\nC. Blue walls, wooden accents, and traditional shelving\nD. Orange walls, brick accents, and modern she...
0_30_s_academic_v0_1
academic_source/youcook2/405/p1RgI4R8VX4/split_1.mp4
405-p1RgI4R8VX4-split_1
[ { "from": "human", "value": "<image>\nWhat does the chef add to the pot after the ginger paste?\nA. Raw mutton pieces\nB. Garlic paste\nC. Oil\nD. Salt\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "B. Garlic paste." }, { "fr...
0_30_s_academic_v0_1
academic_source/youcook2/405/p1RgI4R8VX4/split_1.mp4
105-ixaY3TcKFFA-split_4
[ { "from": "human", "value": "<image>\nWhat is the person using to place the breaded chicken into the skillet?\nA. A pair of wooden chopsticks\nB. A plastic fork\nC. A metal spatula\nD. A wooden spoon\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "A." ...
0_30_s_academic_v0_1
academic_source/youcook2/105/ixaY3TcKFFA/split_4.mp4
230-yDZvPCG51zw-split_3
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. The chef's attire\nB. The table setting\nC. The culinary process of preparing a dish\nD. The background music\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value"...
0_30_s_academic_v0_1
academic_source/youcook2/230/yDZvPCG51zw/split_3.mp4
230-yDZvPCG51zw-split_3
[ { "from": "human", "value": "<image>\nWhat is the chef wearing in the video?\nA. A red jacket\nB. A white chef's coat\nC. A black apron\nD. A blue shirt\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "B." }, { "from": "human", "value": "What...
0_30_s_academic_v0_1
academic_source/youcook2/230/yDZvPCG51zw/split_3.mp4
209-gYKfSHrvew0-split_11
[ { "from": "human", "value": "<image>\nWhat does the person do after holding the pot filled with the savory mixture?\nA. They transfer the mixture into a baking dish\nB. They start eating the mixture\nC. They put the pot back on the stove\nD. They add more ingredients to the pot\nPlease provide your answer b...
0_30_s_academic_v0_1
academic_source/youcook2/209/gYKfSHrvew0/split_11.mp4
KDH19
[ { "from": "human", "value": "<image>\nWhat decorative elements are present in the room?\nA. A wreath with a bow and an ornate mirror\nB. A lamp and a rug\nC. A painting and a vase\nD. A clock and a bookshelf\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value"...
0_30_s_academic_v0_1
academic_source/Charades/KDH19.mp4
MWUIN
[ { "from": "human", "value": "<image>\nWhat items are mentioned as being in the cluttered room at the beginning of the video?\nA. A mattress, a drum, a chair, and other miscellaneous objects\nB. A mattress, a lamp, a chair, and other miscellaneous objects\nC. A bed, a guitar, a table, and other miscellaneous...
0_30_s_academic_v0_1
academic_source/Charades/MWUIN.mp4
7KW31
[ { "from": "human", "value": "<image>\nWhat is the person wearing when they are sweeping the floor?\nA. Red jacket, dark pants, and brown shoes\nB. Orange shirt, dark pants, and brown shoes\nC. Green jacket, dark pants, and brown shoes\nD. Blue shirt, light pants, and black shoes\nPlease respond with only th...
0_30_s_academic_v0_1
academic_source/Charades/7KW31.mp4
321-B7-kMmC8Tj8-split_6
[ { "from": "human", "value": "<image>\nWhat does the person do after pouring the green vegetables into the frying pan?\nA. The person adds more garlic\nB. The person stirs the vegetables with a wooden spatula\nC. The person turns off the stove\nD. The person adds salt\nPlease provide your answer by stating t...
0_30_s_academic_v0_1
academic_source/youcook2/321/B7-kMmC8Tj8/split_6.mp4
321-B7-kMmC8Tj8-split_6
[ { "from": "human", "value": "<image>\nWhat is the main activity shown in the video?\nA. Preparing a salad\nB. Baking a cake\nC. Making a smoothie\nD. Cooking green vegetables\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "D." }, { "from": "huma...
0_30_s_academic_v0_1
academic_source/youcook2/321/B7-kMmC8Tj8/split_6.mp4
104-xHlBWc-7Kwo-split_0
[ { "from": "human", "value": "<image>\nWhat is the main activity shown in the video?\nA. Preparing a mixture in a bowl\nB. Cooking a meal\nC. Cleaning the kitchen\nD. Arranging fruits in a basket\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "A." }, ...
0_30_s_academic_v0_1
academic_source/youcook2/104/xHlBWc-7Kwo/split_0.mp4
207-2uApOypvnZI-split_4
[ { "from": "human", "value": "<image>\nWhere does the video primarily take place?\nA. A dining room\nB. A garden\nC. A restaurant\nD. A kitchen\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "D." }, { "from": "human", "value": "What is the pe...
0_30_s_academic_v0_1
academic_source/youcook2/207/2uApOypvnZI/split_4.mp4
v_sRol1BJ9EUk
[ { "from": "human", "value": "<image>\nWhat does the person do after dribbling around multiple chairs?\nA. They run across the court while dribbling\nB. They sit on the blue bleachers\nC. They practice free throws\nD. They leave the gymnasium\nPlease provide your answer by stating the letter followed by the ...
0_30_s_academic_v0_1
academic_source/activitynet/v_sRol1BJ9EUk.mp4
122-G_oxCFd1krc-split_4
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. Roasting vegetables\nB. Cooking pasta\nC. Baking a cake\nD. Making a salad\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "A." }, { "from": "human", "value": "In ...
0_30_s_academic_v0_1
academic_source/youcook2/122/G_oxCFd1krc/split_4.mp4
109-tcPeQKJMTOk-split_0
[ { "from": "human", "value": "<image>\nWhat is the first ingredient added to the flour mixture?\nA. Paprika\nB. Salt\nC. Garlic powder\nD. Cayenne pepper\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "B. Salt." }, { "from": "h...
0_30_s_academic_v0_1
academic_source/youcook2/109/tcPeQKJMTOk/split_0.mp4
B2NAS
[ { "from": "human", "value": "<image>\nWhat is the main activity of the person in the video?\nA. Watching TV\nB. Cleaning the room\nC. Eating a meal\nD. Reading a book\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "C." }, { "from": "human", ...
0_30_s_academic_v0_1
academic_source/Charades/B2NAS.mp4
316-um8-utUa9UI-split_0
[ { "from": "human", "value": "<image>\nWhat is the main activity shown in the video?\nA. Organizing kitchen utensils\nB. Cleaning the kitchen\nC. Cooking a recipe\nD. Planting a green plant\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value"...
0_30_s_academic_v0_1
academic_source/youcook2/316/um8-utUa9UI/split_0.mp4
316-um8-utUa9UI-split_0
[ { "from": "human", "value": "<image>\nWhat is the person wearing in the video?\nA. A white shirt and a green apron with 'The Cancer Project' text\nB. A white shirt and a blue apron\nC. A blue shirt and a red apron\nD. A black shirt and a yellow apron\nPlease provide your answer by stating the letter followe...
0_30_s_academic_v0_1
academic_source/youcook2/316/um8-utUa9UI/split_0.mp4
0HD9F
[ { "from": "human", "value": "<image>\nWhat does the person do after cleaning the sink area?\nA. They start organizing the bathroom\nB. They take a shower\nC. They clean the mirror\nD. They leave the bathroom\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value"...
0_30_s_academic_v0_1
academic_source/Charades/0HD9F.mp4
305-UvuV9z3HkDo-split_5
[ { "from": "human", "value": "<image>\nWhat is the first ingredient shown being sliced in the video?\nA. Asian Pear\nB. Red Hot Pepper\nC. Green Onion\nD. Carrot\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "A. Asian Pear." }, { ...
0_30_s_academic_v0_1
academic_source/youcook2/305/UvuV9z3HkDo/split_5.mp4
305-UvuV9z3HkDo-split_5
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. Cleaning the kitchen\nB. Cooking a meal\nC. Slicing and preparing ingredients\nD. Decorating a dish\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "C." }, { "from": "...
0_30_s_academic_v0_1
academic_source/youcook2/305/UvuV9z3HkDo/split_5.mp4
203-SDHOR15oWwU-split_9
[ { "from": "human", "value": "<image>\nWhat happens after the green leafy herbs are added to the bowl?\nA. A spoon with a white substance is shown and added to the bowl\nB. The bowl is covered with a lid\nC. The hand removes the herbs from the bowl\nD. The bowl is placed in the microwave\nPlease respond with...
0_30_s_academic_v0_1
academic_source/youcook2/203/SDHOR15oWwU/split_9.mp4
0029-5219718493
[ { "from": "human", "value": "<image>\nWhat happens after the third woman in the white tank top and gray shorts joins the other two women?\nA. The third woman starts running\nB. The third woman grabs the bar and lifts her legs\nC. The third woman sits on a bench\nD. The third woman leaves the park\nPlease pr...
0_30_s_academic_v0_1
academic_source/NextQA/0029/5219718493.mp4
109-DKk5IVcIWW8-split_6
[ { "from": "human", "value": "<image>\nWhat is the person doing with the purple utensil?\nA. Mixing the wings with the sauce\nB. Pouring the sauce\nC. Frying the wings\nD. Serving the wings\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value"...
0_30_s_academic_v0_1
academic_source/youcook2/109/DKk5IVcIWW8/split_6.mp4
CBZEP
[ { "from": "human", "value": "<image>\nWhat is the main theme of the video?\nA. Tidiness and preparation\nB. Cooking\nC. Exercise\nD. Shopping\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "A." }, { "from": "human", "value": "In which direct...
0_30_s_academic_v0_1
academic_source/Charades/CBZEP.mp4
v_YZvdzvM-124
[ { "from": "human", "value": "<image>\nWhere does the video take place?\nA. A basketball court\nB. A tennis court\nC. A swimming pool\nD. A soccer field\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "D. A soccer field." }, { "...
0_30_s_academic_v0_1
academic_source/activitynet/v_YZvdzvM-124.mp4
109-DKk5IVcIWW8-split_5
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. Mixing ingredients to create a sauce\nB. Cooking a meal\nC. Frying vegetables\nD. Baking a cake\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "A." }, { "from": "huma...
0_30_s_academic_v0_1
academic_source/youcook2/109/DKk5IVcIWW8/split_5.mp4
204-SRdsaqpnfd4-split_5
[ { "from": "human", "value": "<image>\nWhat does the person do after sprinkling a pinch of salt into the pan?\nA. Adds chopped garlic\nB. Pours crushed tomatoes into the pan\nC. Removes the pan from the burner\nD. Adds a green container of seasoning\nPlease provide your answer by stating the letter followed ...
0_30_s_academic_v0_1
academic_source/youcook2/204/SRdsaqpnfd4/split_5.mp4
224-olwrZ-zMOqU-split_5
[ { "from": "human", "value": "<image>\nWhat is the main activity shown in the video?\nA. Boiling pasta\nB. Baking a cake\nC. Grilling vegetables\nD. Frying breaded pieces of food\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "D." }, { "from": "h...
0_30_s_academic_v0_1
academic_source/youcook2/224/olwrZ-zMOqU/split_5.mp4
115-9CUkuWWVSjE-split_0
[ { "from": "human", "value": "<image>\nWhat does the hand do after releasing the bottle of apple cider vinegar?\nA. Picks up the small bowl\nB. Leaves the table\nC. Picks up the larger bowl\nD. Pours the contents of the larger bowl\nPlease provide your answer by stating the letter followed by the full option...
0_30_s_academic_v0_1
academic_source/youcook2/115/9CUkuWWVSjE/split_0.mp4
419-fetFXsc6G5s-split_9
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. Serving a finished dish\nB. Preparing ingredients for a meal\nC. Cooking flatbread on a gas stove\nD. Cleaning a gas stove\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt"...
0_30_s_academic_v0_1
academic_source/youcook2/419/fetFXsc6G5s/split_9.mp4
221-7TUOtdjLI6I-split_0
[ { "from": "human", "value": "<image>\nWhat happens after the hand places the onion pieces into the food processor bowl?\nA. The hand starts chopping the onions\nB. The hand adds garlic to the bowl\nC. The hand starts cooking the onions on the stove\nD. The hand places the food processor bowl into a black sl...
0_30_s_academic_v0_1
academic_source/youcook2/221/7TUOtdjLI6I/split_0.mp4
XDRZ7
[ { "from": "human", "value": "<image>\nWhat does the person do after opening the door leading outside?\nA. They close the door and adjust the blinds\nB. They walk towards the vacuum cleaner\nC. They step outside and disappear from the frame\nD. They turn off the television\nPlease respond with only the lette...
0_30_s_academic_v0_1
academic_source/Charades/XDRZ7.mp4
206-QepadF9vOdA-split_3
[ { "from": "human", "value": "<image>\nWhat is the likely main ingredient being cooked in the video?\nA. Pasta\nB. Cubed pieces of meat or vegetables\nC. Fish fillets\nD. Whole chicken\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "B....
0_30_s_academic_v0_1
academic_source/youcook2/206/QepadF9vOdA/split_3.mp4
RUKXT
[ { "from": "human", "value": "<image>\nWhat is the person wearing in the video?\nA. A black hoodie with a white hood and gray sleeves, and dark jeans\nB. A green hoodie with a yellow hood and black sleeves, and dark jeans\nC. A blue hoodie with a red hood and gray sleeves, and dark jeans\nD. A red hoodie wit...
0_30_s_academic_v0_1
academic_source/Charades/RUKXT.mp4
108-wiWB46xiIwU-split_4
[ { "from": "human", "value": "<image>\nWhat is the initial state of the mixture in the glass bowl at the beginning of the video?\nA. A white powdery substance\nB. A dark brown liquid\nC. A thick batter\nD. A light yellow liquid mixture\nPlease provide your answer by stating the letter followed by the full op...
0_30_s_academic_v0_1
academic_source/youcook2/108/wiWB46xiIwU/split_4.mp4
108-wiWB46xiIwU-split_4
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. Stirring the mixture until smooth\nB. Baking a cake\nC. Cleaning the kitchen\nD. Adding ingredients to a bowl\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "A." }, { ...
0_30_s_academic_v0_1
academic_source/youcook2/108/wiWB46xiIwU/split_4.mp4
301-BFz-pqB2Opw-split_5
[ { "from": "human", "value": "<image>\nWhat is the main focus of the video?\nA. Preparing a dark, simmering sauce\nB. Pouring lemon juice\nC. Chopping green onions\nD. Roasting peanuts\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "A." }, { "fro...
0_30_s_academic_v0_1
academic_source/youcook2/301/BFz-pqB2Opw/split_5.mp4
0N6B0
[ { "from": "human", "value": "<image>\nWhat is the design of the bedspread in the bedroom?\nA. Solid color in red\nB. Floral pattern\nC. Geometric pattern in shades of black, white, and gray\nD. Striped pattern in blue and white\nPlease provide your answer by stating the letter followed by the full option." ...
0_30_s_academic_v0_1
academic_source/Charades/0N6B0.mp4
1026-6913450810
[ { "from": "human", "value": "<image>\nWhat does the boy in the blue shirt and jeans do as the video progresses?\nA. He sits down\nB. He moves energetically towards the camera\nC. He stops dancing\nD. He leaves the room\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", ...
0_30_s_academic_v0_1
academic_source/NextQA/1026/6913450810.mp4
67EEN
[ { "from": "human", "value": "<image>\nWhat does the person do after sitting down on the couch?\nA. They pick up a book\nB. They start vacuuming\nC. They turn on the TV\nD. They adjust their position and lean back\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "v...
0_30_s_academic_v0_1
academic_source/Charades/67EEN.mp4
DIR8Q
[ { "from": "human", "value": "<image>\nWhat color are the walls in the laundry room?\nA. Green\nB. Blue\nC. White\nD. Beige\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "D. Beige." }, { "from": "human", "value": "What is ...
0_30_s_academic_v0_1
academic_source/Charades/DIR8Q.mp4
v_Qo3riKtRg2c
[ { "from": "human", "value": "<image>\nWhere does the video take place?\nA. A bowling alley\nB. A basketball court\nC. A swimming pool\nD. A tennis court\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "A. A bowling alley." }, { ...
0_30_s_academic_v0_1
academic_source/activitynet/v_Qo3riKtRg2c.mp4
206-8QCW0qWbNeI-split_5
[ { "from": "human", "value": "<image>\nWhat is the person wearing in the video?\nA. A colorful polka-dotted apron\nB. A chef's hat\nC. A plain white apron\nD. A striped shirt\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "A. A colorfu...
0_30_s_academic_v0_1
academic_source/youcook2/206/8QCW0qWbNeI/split_5.mp4
309-gswKIbddBHw-split_6
[ { "from": "human", "value": "<image>\nWhat is the main activity shown in the video?\nA. Baking dumplings\nB. Boiling dumplings\nC. Frying dumplings\nD. Steaming dumplings\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gpt", "value": "D. Steaming dum...
0_30_s_academic_v0_1
academic_source/youcook2/309/gswKIbddBHw/split_6.mp4
113-GLd3aX16zBg-split_1
[ { "from": "human", "value": "<image>\nWhat is the second step in the sandwich-making process as shown in the video?\nA. Put a slice or two of cheese on the dry side of the bread\nB. Add lettuce to the sandwich\nC. Toast the bread\nD. Spread butter on the bread\nPlease respond with only the letter of the cor...
0_30_s_academic_v0_1
academic_source/youcook2/113/GLd3aX16zBg/split_1.mp4
113-GLd3aX16zBg-split_1
[ { "from": "human", "value": "<image>\nWhat is the second step in the sandwich-making process?\nA. Toast the bread\nB. Add lettuce to the sandwich\nC. Spread the bread with butter\nD. Put a slice or two of cheese on the dry side of the bread\nPlease provide your answer by stating the letter followed by the f...
0_30_s_academic_v0_1
academic_source/youcook2/113/GLd3aX16zBg/split_1.mp4
v_SF3pw17yBB4
[ { "from": "human", "value": "<image>\nWhat does the person do after peeling the first potato?\nA. The person starts cooking the potato\nB. The person throws away the potato skin\nC. The person washes the potato\nD. The person places the peeled potato on an orange cutting board\nPlease provide your answer by...
0_30_s_academic_v0_1
academic_source/activitynet/v_SF3pw17yBB4.mp4
10LP3
[ { "from": "human", "value": "<image>\nWhat does the person do after retrieving the pillow from the top shelf?\nA. The person closes the closet door\nB. The person walks out of the closet area carrying the pillow\nC. The person places the pillow back on the top shelf\nD. The person sits down on the floor\nPl...
0_30_s_academic_v0_1
academic_source/Charades/10LP3.mp4
116-nB-z3lmxFXM-split_3
[ { "from": "human", "value": "<image>\nWhat happens to the ground meat after it is spread evenly across the tray?\nA. It is cooked and becomes browned and slightly crispy\nB. It is mixed with vegetables\nC. It is seasoned\nD. It is removed from the tray\nPlease respond with only the letter of the correct ans...
0_30_s_academic_v0_1
academic_source/youcook2/116/nB-z3lmxFXM/split_3.mp4
1161-2547885226
[ { "from": "human", "value": "<image>\nWhat is the child wearing?\nA. A red shirt and blue jeans\nB. A green hoodie and black pants\nC. A black t-shirt and blue shorts with a white and blue pattern\nD. A white dress\nPlease provide your answer by stating the letter followed by the full option." }, { ...
0_30_s_academic_v0_1
academic_source/NextQA/1161/2547885226.mp4
316-d2Y0zSQtvj4-split_0
[ { "from": "human", "value": "<image>\nWhat does the person do after adding the substance from the jar into the pot?\nA. The person turns off the stove\nB. The person adds a piece of salmon\nC. The person pours a liquid from a bowl into the pot\nD. The person cuts vegetables\nPlease provide your answer by st...
0_30_s_academic_v0_1
academic_source/youcook2/316/d2Y0zSQtvj4/split_0.mp4
109-N6J2ZQYic_g-split_1
[ { "from": "human", "value": "<image>\nWhat does the hand do after placing the aluminum foil over the baking tray?\nA. It picks up a piece of raw chicken with tongs\nB. It smooths out the foil\nC. It sprinkles seasoning on the chicken\nD. It places the tray in the oven\nPlease respond with only the letter of...
0_30_s_academic_v0_1
academic_source/youcook2/109/N6J2ZQYic_g/split_1.mp4
109-N6J2ZQYic_g-split_1
[ { "from": "human", "value": "<image>\nWhat is the hand doing in the video?\nA. Placing raw chicken pieces on a baking tray\nB. Using a pair of metal tongs\nC. All of the above\nD. Holding a piece of aluminum foil\nPlease provide your answer by stating the letter followed by the full option." }, { "f...
0_30_s_academic_v0_1
academic_source/youcook2/109/N6J2ZQYic_g/split_1.mp4
0101-4846820256
[ { "from": "human", "value": "<image>\nWhat is the adult wearing in the video?\nA. Blue cap, white t-shirt, and blue life vest\nB. Red cap, white t-shirt, and gray shorts\nC. Green cap, black t-shirt, and brown shorts\nPlease provide your answer by stating the letter followed by the full option." }, { ...
0_30_s_academic_v0_1
academic_source/NextQA/0101/4846820256.mp4
218-EHPkhM261nk-split_9
[ { "from": "human", "value": "<image>\nWhat is the initial scene of the video?\nA. A bowl of raw dumplings\nB. A person chopping onions\nC. A wooden table with dumplings\nD. A close-up of a frying pan on a stove with onions being sautéed\nPlease provide your answer by stating the letter followed by the full ...
0_30_s_academic_v0_1
academic_source/youcook2/218/EHPkhM261nk/split_9.mp4
1202-5635265624
[ { "from": "human", "value": "<image>\nWhere does the interaction between the person and the child take place?\nA. In a living room\nB. In a playground\nC. In a classroom\nD. In a bright outdoor setting with greenery\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", ...
0_30_s_academic_v0_1
academic_source/NextQA/1202/5635265624.mp4
122-1r7N-G4kYG8-split_11
[ { "from": "human", "value": "<image>\nWhich of the following spices is added first to the pot?\nA. Brown sugar\nB. Paprika\nC. Garlic powder with parsley\nPlease respond with only the letter of the correct answer." }, { "from": "gpt", "value": "C." }, { "from": "human", "value": "Wha...
0_30_s_academic_v0_1
academic_source/youcook2/122/1r7N-G4kYG8/split_11.mp4
5FSDB
[ { "from": "human", "value": "<image>\nWhat is the person with short blonde hair doing throughout the video?\nA. Cleaning the mirror\nB. Brushing their teeth\nC. Washing their hands\nD. Combing their hair\nPlease provide your answer by stating the letter followed by the full option." }, { "from": "gp...
0_30_s_academic_v0_1
academic_source/Charades/5FSDB.mp4
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LLaVA-Video-83K

An 83,000-sample subset of lmms-lab/LLaVA-Video-178K, selected by stratified density-flattened sampling rather than uniformly at random, and shipped with its media so it is usable straight out of the bucket.

Records 83,000 (5.0% of the 1,650,547 upstream records)
QA pairs 279,679
Distinct media 71,224 (59,428 mp4 + 11,796 llava_hound frame scenes)
Media size 428.9 GiB
Tasks Caption 10.97% · Open-ended VQA 75.84% · Multiple-choice VQA 13.19%

Media for the llava_hound split comes from ShareGPTVideo/train_video_and_instruction (train_300k), which covers all 179,318 referenced scenes.

Layout

LLaVA-Video-83K/
├── annotations/
│   ├── all_sampled.json          # 83,000 records, upstream schema unchanged
│   └── by_source/*.json          # 39 files, split as upstream
├── metadata/
│   ├── manifest.parquet          # record -> media, task, duration bucket, source
│   ├── shard_index.parquet       # member -> (shard, offset, nbytes)   ← random access
│   ├── scene_index.parquet       # llava_hound scene -> frame count
│   └── SAMPLING_REPORT.md        # how the subset was drawn, and its verification
├── embeddings/                   # MiniLM-L6 vector per record, for re-drawing subsets
├── shards/
│   ├── video/video-NNNNN.tar     # uncompressed, ~2 GiB each
│   └── frame/frame-NNNNN.tar     # uncompressed, ~2 GiB each
└── videos_large/                 # the 188 mp4s above 64 MiB, stored loose

A record's video field is unchanged from upstream and is exactly the member name inside the shards, so nothing in the annotations needs rewriting.

Why tar shards

Media is stored as uncompressed tar plus a byte-offset index, not as loose files. A member therefore occupies a contiguous byte range and is one pread away — decord decodes it from BytesIO byte-identically to reading the file from disk, seeks included (verified on files up to 707 MiB).

The reason is I/O, not a Hub limit: 377k loose objects make transfer, listing and Lustre metadata operations painfully slow, while ~220 shards of 2 GiB read at full bandwidth. Videos above 64 MiB are the exception — they stay loose so a dataloader never has to buffer a 700 MiB file in RAM.

Usage

from lvdu_reader import ShardReader

r = ShardReader("/path/to/LLaVA-Video-83K")

vr = r.video_reader("academic_source/youcook2/203/Qh_rtJaCpXs/split_6.mp4")   # decord VideoReader
frames = r.scene_frames("shareVideoGPTV/frames/all_frames/v_XXX-Scene-001")

ShardReader is safe under DataLoader workers: shard handles are opened lazily per process and never shared across a fork.

How the subset was drawn

Uniform random sampling inherits the upstream corpus's pathologies. This subset instead:

  • keeps the task / duration / source mix of the parent pool (task shares match to 0.01%);
  • gives small sources (activitynetqa, nextqa, perceptiontest — 41k records between them) a floor so they survive the cut;
  • drops records whose answers are entirely boilerplate, cutting ultra-short open-ended answers from 5.65% (random) to 2.39%;
  • flattens density inside each stratum: cluster the MiniLM vectors, then allocate per cluster ∝ size^0.5, so dense topic clusters stop dominating;
  • constrains the multiple-choice length shortcut: a blind "pick the longest option" guesser scores 51.23% on the full set, and 49.79% here.

Measured effect of the flattening, against an equally-sized random draw: cluster hit rate is unchanged (the metric saturates at 5% sampling), but concentration drops — max samples per cluster 287 → 161 globally and 52 → 45 inside the largest stratum; Gini 0.712 → 0.697 and 0.394 → 0.341.

Full numbers, including the verification of every claim above, are in metadata/SAMPLING_REPORT.md.

Provenance and licence

This is a derived subset. The videos and annotations remain under the terms of the upstream releases — see lmms-lab/LLaVA-Video-178K and ShareGPTVideo/train_video_and_instruction. Cite those datasets, not this repackaging, for the underlying data.

Media

This repo carries the annotations and indices only. The 429 GiB of media lives in the companion bucket:

hf://buckets/LLMasterLL/LVDU/LLaVA-Video-83K/

Download it with hf buckets sync, then point ShardReader at the result.

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