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# Dataset Card for Dataset Name
The `nucleotide_transformer_downstream_tasks` dataset features the 18 downstream tasks presented in the Nucleotide Transformer paper. They consist of both binary and multi-class classification tasks that aim at providing a consistent genomics benchmark.


## Dataset Description

- **Repository:** [Nucleotide Transformer](https://github.com/instadeepai/nucleotide-transformer)
- **Paper:** [The Nucleotide Transformer: Building and Evaluating Robust Foundation Models for Human Genomics](https://www.biorxiv.org/content/10.1101/2023.01.11.523679v1) 

### Dataset Summary

The different datasets are collected from 4 different genomics papers: 
- [DeePromoter: Robust Promoter Predictor Using Deep Learning](https://www.frontiersin.org/articles/10.3389/fgene.2019.00286/full): The datasets features 3,065 TATA promoters and 26,532 non-TATA promoters, with each promoter yielding a negative sequence by randomly sampling parts of the sequence. The `promoter_all` dataset will feature all the promoters and their negative counterparts, while the `promoter_tata` and `promoter_no_tata` respectively provide the TATA and non-TATA parts of the dataset.
- [A deep learning framework for enhancer prediction using word embedding and sequence generation](https://www.sciencedirect.com/science/article/abs/pii/S0301462222000643): To build the training dataset, the authors collect 742 strong
enhancers, 742 weak enhancers and 1484 non-enhancers, and augment the dataset with 6000 synthetic enhancers and 6000 synthetic non-enhancers produced with a generative model. The test dataset is comprised of 100 strong enhancers, 100 weak enhancers and 200 non enhancers. The original paper uses this dataset to do both binary classification (i.e a sample gets classified as non-enhancer or enhancer) and 3-class classification (i.e a sample gets classified as non-enhancer, weak enhancer or strong enhancer). Both tasks are respectively tackled in the `enhancers` and `enhancers_types` datasets. 
- [SpliceFinder: ab initio prediction of splice sites using convolutional neural network](https://pubmed.ncbi.nlm.nih.gov/31881982): The authors introduce a dataset containing 10,000 samples of donor site, acceptor site, and non-splice-site, resulting in 30,000 total samples that are featured in the `splice_sites_all` dataset.
- [Spliceator: multi-species splice site prediction using convolutional neural networks](https://bmcbioinformatics.biomedcentral.com/articles/10.1186/s12859-021-04471-3): Two datasets are introduced by this paper, each of them contain splice sites and their corresponding negative datasets. The dataset `splice_sites_acceptor` features acceptor splice sites and the other, `splice_sites_donor`, donor splice sites.
- [Qualitatively predicting acetylation and methylation areas in DNA sequences](https://pubmed.ncbi.nlm.nih.gov/16901084/): The paper introduces a set of datasets featuring epigenetic marks identified in the yeast genome, namely acetylation and metylation nucleosome occupancies. Nucleosome occupancy values in these ten datasets were obtained with Chip-Chip experiments and further processed into positive and negative observations to provide the datasets corresponding to the following histone marks:  `H3`, `H4`, `H3K9ac`, `H3K14ac`, `H4ac`, `H3K4me1`, `H3K4me2`, `H3K4me3`, `H3K36me3` and `H3K79me3`

## Dataset Structure
```
| Task                  | Number of train sequences | Number of test sequences | Number of labels | Sequence length |
| --------------------- | ------------------------- | ------------------------ | ---------------- | --------------- |
| promoter_all          | 30,000                    | 1,584                    | 2                | 300             |
| promoter_tata         | 5,062                     | 212                      | 2                | 300             |
| promoter_no_tata      | 30,000                    | 1,372                    | 2                | 300             |
| enhancers             | 30,000                    | 3,000                    | 2                | 400             |
| enhancers_types       | 30,000                    | 3,000                    | 3                | 400             |
| splice_sites_all      | 30,000                    | 3,000                    | 3                | 600             |
| splice_sites_acceptor | 30,000                    | 3,000                    | 2                | 600             |
| splice_sites_donor    | 30,000                    | 3,000                    | 2                | 600             |
| H2AFZ                 | 30,000                    | 3,000                    | 2                | 1,000           |
| H3K27ac               | 30,000                    | 1,616                    | 2                | 1,000           |
| H3K27me3              | 30,000                    | 3,000                    | 2                | 1,000           |
| H3K36me3              | 30,000                    | 3,000                    | 2                | 1,000           |
| H3K4me1               | 30,000                    | 3,000                    | 2                | 1,000           |
| H3K4me2               | 30,000                    | 2,138                    | 2                | 1,000           |
| H3K4me3               | 30,000                    | 776                      | 2                | 1,000           |
| H3K9ac                | 23,274                    | 1,004                    | 2                | 1,000           |
| H3K9me3               | 27,438                    | 850                      | 2                | 1,000           |
| H4K20me1              | 30,000                    | 2,270                    | 2                | 1,000           |
```