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README.md
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license: mit
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---
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license: mit
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language:
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- en
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tags:
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- tau
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- hep
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- fcc
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- clic
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- ee
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- reconstruction
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- identification
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- decay_mode
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- foundation_model
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- omnijet_alpha
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---
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# Model Card for Model ID
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<!-- Provide a quick summary of what the model is/does. -->
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This modelcard aims to be a base template for new models. It has been generated using [this raw template](https://github.com/huggingface/huggingface_hub/blob/main/src/huggingface_hub/templates/modelcard_template.md?plain=1).
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## Model Details
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### Model Description
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<!-- Provide a longer summary of what this model is. -->
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- **Developed by:** Joschka Birk, Anna Hallin, Gregor Kasieczka
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- **Model type:** Transformer
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- **Language(s) (NLP):** Pytorch
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- **Finetuned from model:** https://doi.org/10.1088/2632-2153/ad66ad
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The OmniJet- \\(\alpha\\) model was published in [here](https://doi.org/10.1088/2632-2153/ad66ad) was used as the base model for identifying hadronically decaying taus, reconstructing their kinematics and predicting their decay mode.
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The base model, initially trained on [JetClass dataset](https://doi.org/10.5281/zenodo.6619768), was now fine-tuned on [Fu \\(\tau\\)ure](https://doi.org/10.5281/zenodo.13881061) dataset.
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The models included here are for 3 separate tasks:
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- Tau-tagging (binary classification)
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- Tau kinematic reconstruction (regression)
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- Tau decay mode classification (multiclass-classification)
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And for 3 different ways of training:
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- From scratch
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- Fixed backbone (fine-tune only head)
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- Fine-tuning (fine-tune both head and backbone)
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This will add up to 9 different models.
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### Model Sources [optional]
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<!-- Provide the basic links for the model. -->
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- **Repository (base model):** https://github.com/uhh-pd-ml/omnijet_alpha
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- **Repository (fine-tuned model):** https://github.com/HEP-KBFI/ml-tau-en-reg
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- **Paper:** https://doi.org/10.1088/2632-2153/ad66ad
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## Uses
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### Direct Use
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<!-- This section is for the model use without fine-tuning or plugging into a larger ecosystem/app. -->
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The intended use of the models is to study the feasibility of foundation models for the purposes of reconstructing and identifying hadronically decaying tau leptons.
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### Out-of-Scope Use
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<!-- This section addresses misuse, malicious use, and uses that the model will not work well for. -->
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This model is not intended for physics measurements on real data. The trainings have been done on CLIC detector simulations.
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## Bias, Risks, and Limitations
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<!-- This section is meant to convey both technical and sociotechnical limitations. -->
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The model has only been trained on simulation data and has not been validated against real data. Although the base model has been published in a peer-reviewed journal, the fine-tuned model has not been.
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## How to Get Started with the Model
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Use the code below to get started with the model.
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```bash
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# Clone the repository
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git clone git@github.com:HEP-KBFI/ml-tau-en-reg.git --recursive
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cd ml-tau-en-reg
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# Get the models
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git clone https://huggingface.co/LauritsT/TauRecoID models
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```
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## Training Details
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### Training Data
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<!-- This should link to a Dataset Card, perhaps with a short stub of information on what the training data is all about as well as documentation related to data pre-processing or additional filtering. -->
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The data used to fine-tune the base model can be found here: [Fu \\(\tau\\)ure](https://doi.org/10.5281/zenodo.13881061) dataset
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#### Training Hyperparameters
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- No hyperparameter tuning has been done. <!--fp32, fp16 mixed precision, bf16 mixed precision, bf16 non-mixed precision, fp16 non-mixed precision, fp8 mixed precision -->
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#### Speeds, Sizes, Times [optional]
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<!-- This section provides information about throughput, start/end time, checkpoint size if relevant, etc. -->
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Training on 1M jets on AMD MI250x for 100 epochs takes ~8h.
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## Evaluation
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<!-- This section describes the evaluation protocols and provides the results. -->
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### Testing Data, Factors & Metrics
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#### Testing Data
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<!-- This should link to a Dataset Card if possible. -->
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Testing data can also be found in the same [Zenodo entry](https://doi.org/10.5281/zenodo.13881061) as the rest of the data.
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#### Software
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[Software](https://github.com/HEP-KBFI/ml-tau-en-reg/) to train and analyze the model
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## Citation [optional]
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<!-- If there is a paper or blog post introducing the model, the APA and Bibtex information for that should go in this section. -->
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[OmniJet- \\(\alpha\\)](https://doi.org/10.1088/2632-2153/ad66ad)
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## Model Card Authors [optional]
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Laurits Tani (laurits.tani@cern.ch)
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## Model Card Contact
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Laurits Tani (laurits.tani@cern.ch)
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