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# HDMF-AI - an HDMF schema and API for AI/ML workflows

![Schema](paper/schema.png)
`HDMF-AI` is a schema and Python API for storing the common results of AI algorithms in a standardized way within the Hierarchical Data Modeling Framework (HDMF).

`HDMF-AI` is designed to be flexible and extensible, allowing users to store a range of AI and machine learning results and metadata, such as from classification, regression, and clustering. These results are stored in the `ResultsTable` data type, which extends the `DynamicTable` data type within the base HDMF schema. The `ResultsTable` schema represents each data sample as a row and includes columns for storing model outputs and information about the AI/ML workflow, such as which data were used for training, validation, and testing.

By leveraging existing HDMF tools and standards, `HDMF-AI` provides a scalable and extensible framework for storing AI results in an accessible, standardized way that is compatible with other HDMF-based data formats, such as Neurodata Without Borders [@rubel2022neurodata], a popular data standard for neurophysiology, and HDMF-Seq, a format for storing taxonomic and genomic sequence data. By enabling standardized co-storage of data and AI results, `HDMF-AI` may enhance the reproducibility and explainability of AI for science.

![UML diagram of the HDMF-AI schema. Data types with orange headers are introduced by HDMF-AI. Data types with blue headers are defined in HDMF. Fields colored in gray are optional.](paper/schema.png)

## Installation

```bash
pip install hdmf-ai
```

## Usage

For example usage, see `example_usage.ipynb`.

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