v0.5.0

• modelParameters was improved to support other types
• genericChart was improved to support lazy iterators (e.g. for datasets)
• New component onnxModel using onnruntime-web with a wasm backend by default
• New widgets (components): number and numberArray
• textField was updated to textInput and its API was updated ($value stream instead of $text)
• button, text, toggle, select: minor API changes (simplified constructors)
• slider was improved with better defaults for pips and a continuous mode

v0.4.0

Breaking Changes ⚠️

• The dataset interface has changed significantly. Refer to the documentation for upgrading:
• The interface for models' .train() method has changed. train now accepts either a Dataset or an iterable for training, where instances are objects with x and y properties for input and output, respectively.
• BatchPrediction.predict() now accepts datasets or iterables.
• data stores now take a location as argument rather than a configuration object

Many components and methods have been renamed for consistency. Any application built with a previous version of Marcelle is expected to break. The online documentation is up to date with the current naming. The list of name changes is as follows:

Previous name	New Name
Module	Component
ModuleBase	ViewContainer
Dashboard.start()	Dashboard.show()
Dashboard.destroy()	Dashboard.hide()
DashboardPage.useLeft()	DashboardPage.sidebar()
Wizard.start()	Wizard.show()
Wizard.destroy()	Wizard.hide()
Wizard.step()	Wizard.page()
Button.$down	Button.$pressed
textfield	textField
chart	genericChart
sketchpad	sketchPad
mlp	mlpClassifier
knn	knnClassifier
onnx	onnxModel
tfGenericModel	tfjsModel
mobilenet	mobileNet
parameters	modelParameters
classificationPlot	confidencePlot
visObjectDetection	detectionBoxes

New Features

• Lazy iterables have been added to process service data, in particular dataset data (TODO: add link to documentation)
• Services now support a $distinct query parameter to get the list of distinct values for a particular field.
• K-Means clustering
• Styling no longer pollutes global CSS. Tailwind's Preflight was removed so that Marcelle does not interact with top-level styles when integrated in another application.

Internal Changes

• The core UI components have been updated
• Storybook has been added to support the development of core UI components
• The performance of KNN and DatasetBrowser has been improved
• [style] ESLint configuration has been improved
• [style] For-of loops are used instead of forEach

v0.2.0

Breaking changes

• tfImageClassifier has been replaced by tfGenericModel
• Module name property has been replaced by title
• Modules' mount method now accepts an HTML Element rather than a selector
• imageDrop has been renamed to imageUpload
• browser has been renamed to datasetBrowser
• progress has been renamed to trainingProgress
• confusion has been renamed to confusionMatrix
• Dashboards now have a closable option, which is disabled by default.
• Dataset's $created stream has been replaced by a more generic $changes stream

New Features

• Mobilenet and COCO-SSD are now cached in the browser's storage for improved network performance
• Model Storage: models can be saved and loaded from datastores. They can be automatically synchronized with a datastore. File import/export is also possible
• Dataset upload has been added
• Dashboard now expose $active and $page streams to monitor its state
• Dashboard settings have been improved (TODO: give details + breaking changes)
• trainingPlot: The logs to display can be be configured in the module's options. It is possible to pass either a scalar (incremental mode) an array for each log.
• imageUpload now supports target image dimensions and automatically crops and resizes images
• datasetBrowser now allows the selection, deletion or class change of instances

New Modules

• tfGenericModel
• fileUpload
• imageUpload
• onnxImageClassifier

Deprecated Modules

• tfImageClassifier
• imageDrop

Performance Improvements

• Datasets have been updated for improved performance
• Memory management related to TFJS has been improved

Bug Fixes

• webcam now supports multiple video devices
• Quite a few others...

Internal Changes

• Build system update
• Examples now use vite
• Svelte components now use Typescript
• Module's description was unused and has been removed
• Data stores have a $services stream and have been simplified
• The architecture for models has been improved