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Gigadata
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<h1 class="project-title">
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<span>Gigadata</span>
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<a href="https://roundabout-host.com/roundabout/gigadata">Repository</a>
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</h1>
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<article class="content-area">
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<p>Gigadata is an image dataset collection and annotation platform. It allows anyone
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to easily contribute to the dataset by uploading images and annotating objects,
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and to use the dataset for training machine learning models.
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</p><p>The platform is designed to host a single huge dataset, which spans many classes,
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fields of interest, and use cases. Using querying it is easily possible to download
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only the parts that you need, though — for example, to get a JSON of the photos
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which contain either a cat or a dog (assuming these classes are registered on the
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server), and are under a PD equivalent licence:
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</p><pre data-language="yaml">want:
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- has: ["Domestic cat (Felis catus)", "Dog (Canis lupus familiaris)"]
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- nature: ["photo"]
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- licence: ["CC0-1.0", "X-public-domain", "X-informal-do-anything"]
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</pre><p>Classes are hierarchical, so many search problems are solved. For example, consider
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this hierarchy (excuse my text art):
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</p><pre data-language=""> /- Aluminium food container
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/- Aluminium household waste --- Aluminium can
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/- Metal household waste /- Plastic bag
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Household waste --- Plastic household waste --- Plastic bottle \
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/ / \
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Bottle ---------/---------------------------/ - PET bottle --- Clear PET bottle
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/ / /
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Plastic object ---- PET object --------------------------------/ /
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\-------------------------- Clear PET object /
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</pre><p>Multiple inheritance is also possible, seen here in Plastic bottle, for instance.
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It's both a Plastic household waste and a Bottle, and because it's a Plastic
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household waste, it's also a Household waste and a Plastic object. All sorts of
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hierarchies like this one are possible; the <code>has</code> filter is used to search for
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an object or its descendants.
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</p><p>There are more APIs, not just the search one. You can upload images, annotate
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them, and manage galleries programmatically.
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</p><p>If one wants more organisation of a certain set of images, a gallery feature is
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available where users can create galleries of images. Other users can also be
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assigned to add images to a gallery.
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</p><p>To prevent vandalism, you cannot change someone else's image annotations, but
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you can copy the image and make the changes; if the owner of the original approves,
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they can mark their version as obsolete and replaced by your version, which causes
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it to disappear from the search results.
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</p><p>The platform is made with Python, Flask and SQLAlchemy, just like the roundabout.
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</p><p>As always, this platform is free/libre under the AGPL. An official instance, Roundabout
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Datasets, is hosted at
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<a href="https://datasets.roundabout-host.com">datasets.roundabout-host.com</a>. Anyone can
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add images there, but they have to be free/libre. Nothing is guaranteed.
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</p><p>As far as I know, there's nothing else like this platform (at least not free/libre).
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<a href="mailto:root@roundabout-host.com">I'd be happy to be proven wrong, though</a>.
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</p><p>And why did I put "waste" in the topics? I'm moving the waste detection dataset
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there.
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<p>Page generated on Saturday, 4 January 2025 at 11:16:28</p>
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