metadata
license: other
license_name: anki-revlogs-10k
license_link: LICENSE
dataset_info:
- config_name: revlogs
splits:
- name: all
num_examples: 727738650
- config_name: cards
splits:
- name: all
num_examples: 208432491
- config_name: decks
splits:
- name: all
num_examples: 2066838
configs:
- config_name: revlogs
data_files:
- split: all
path: revlogs/user_id=*/data.parquet
- config_name: cards
data_files:
- split: all
path: cards/user_id=*/data.parquet
- config_name: decks
data_files:
- split: all
path: decks/user_id=*/data.parquet
tags:
- memory
- spaced repetition
- knowledge tracing
pretty_name: Anki Revlogs 10K
size_categories:
- 100M<n<1B
Introduction
Anki Revlogs 10K is a dataset of 10k collections from Anki for FSRS project. It is a random sample of collections with 5000+ revlog entries, so it should contain a mix of older (still active) users, and newer users.
The dataset contains three parts: revlogs, cards, and decks.
Revlogs
This dataset contains flashcard review records with the following fields:
- card_id: Unique identifier for each flashcard
- day_offset: Number of days since the start of user's first review
- rating: User's rating of their recall performance (1: again, 2: hard, 3: good, 4: easy)
- state: Card's learning state (0: new, 1: learning, 2: review, 3: relearning)
- duration: Time spent on the card review in milliseconds (range: 0-60000)
- elapsed_days: Days since the last review (-1 for new cards)
- elapsed_seconds: Seconds since the last review (-1 for new cards)
The records have been pre-sorted in chronological order.
Cards
This dataset contains card-note-deck relationship mappings with the following fields:
- card_id: Unique identifier for each flashcard
- note_id: Unique identifier for each note, where a note can contain multiple cards
- deck_id: Unique identifier for each deck, representing different study categories or subjects
Decks
This dataset contains deck hierarchy information with the following fields:
- deck_id: Unique identifier for each deck
- parent_id: ID of the parent deck, indicating the deck's position in the hierarchy
- preset_id: ID of the preset configuration applied to the deck
License
This dataset is released under the anki-revlogs-10k License.