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--- |
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license: mit |
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task_categories: |
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- image-classification |
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- text-to-image |
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language: |
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- en |
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--- |
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# Metadata Database for Danbooru2023 |
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Danbooru 2023 datasets: https://huggingface.co/datasets/nyanko7/danbooru2023 |
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This dataset contains a sqlite db file which have all the tags and posts metadata in it.<br> |
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The Peewee ORM config file is provided too, plz check it for more information. (Especially on how I link posts and tags together) |
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The original data is from the official dump of the posts info.<br> |
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Check this [link](https://console.cloud.google.com/storage/browser/danbooru_public/data) for more info. |
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## Details |
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This section contains some details that you need to be aware of if you want to use other ORM system or use plain SQL query to utilize this database. |
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#### Custom Enum Fields |
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Some fields in Post/Tags use my custom enum field to store type/category or something like that: |
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* Post.rating |
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* 0: general |
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* 1: sensitive |
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* 2: questionable |
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* 3: explicit |
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* Tag.type |
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* 0: general |
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* 1: artist |
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* 2: character |
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* 3: copyright |
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* 4: meta |
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#### Tag List |
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SQLite doesn't support any arrayfield or many-to-many relationship natively.<br> |
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So I use a custom TextField to store ids of tags belongs to a Post. |
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The basic idea is to use 2 unique symbol for start/end of the number. And use 36-base number<br> |
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(python support converting n-base number into integer natively, numpy have utils to convert integer into n-base number) |
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I use $xxx# format, so when you want to utilize the FTS table to search tag_list, use $\<36-base number\># to find if the tag is in the tag-list. |
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For example:<br> |
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The code in profiling.py use $6KMR# which is 306675 under base-36.<br> |
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So the profiling.py is doing "fetch all the Post object which have 'umamusume' tag in their tag list"<br> |
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**If you can ensure the tag type, you can specific the tag_list_\<type\> instead of full tag_list for more efficiency** |
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## Profiling |
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A test script for showing why I use FTS. |
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#### Utils |
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if you think above details are too complicated, just use the db_utils.py and other PeeWee API to utilize this database. |
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I also provide a write_csv.py for exporting whole dataset into csv for data analysis. |
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## License |
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The source code, database file of this repo is licensed under MiT License.<br> |
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**Notice**: The license doesn't cover the "content" of the database.<br> |
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All the content is from official danbooru dumps for posts' meta. |
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## Acknowledgement |
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Thx for AngelBottomless for fixing wrong entries and add more entries into this dataset:<br> |
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https://huggingface.co/datasets/AngelBottomless/danbooru-2023-sqlite-fixed-7110548 |
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Note: I have changed the definition of TagListField and have added some index into it. Do not mixed up the .db files from 2 different repo. |
