---
license: apache-2.0
language:
- en
---
## Empowering Character-level Text Infilling by Eliminating Sub-Tokens

<p align="center">
    <a href="https://arxiv.org/abs/2405.17103">📄 Paper</a> •
    <a href="https://github.com/SenseLLM/FIM-SE">🏠 Repo</a> •
    <a href="https://huggingface.co/SenseLLM/FIM-SE-CL-13B">🤖 Models</a>
</p>

## Introduction
FIM-SE stands for Fill-In-the-Middle with both Starting and Ending character constraints. The proposed method addresses character-level infilling tasks by utilizing a line-level format to avoid predicting any sub-token in inference.

![](method.png)

<hr>

## Models

| Model | Checkpoint | Size | License|
|:------|:-----------|:-----|:-------|
| FIM-SE-CL-7B   | 🤗 [HF Link](https://huggingface.co/SenseLLM/FIM-SE-CL-7B)  | 7B  | [Llama2](https://ai.meta.com/llama/license/) |
| FIM-SE-CL-34B  | 🤗 [HF Link](https://huggingface.co/SenseLLM/FIM-SE-CL-34B) | 13B | [Llama2](https://ai.meta.com/llama/license/) |
| FIM-SE-SC-1B   | 🤗 [HF Link](https://huggingface.co/SenseLLM/FIM-SE-SC-1B)  | 1B  | [StarCoder](https://github.com/bigcode-project/starcoder/blob/main/LICENSE) |
| FIM-SE-SC-15B  | 🤗 [HF Link](https://huggingface.co/SenseLLM/FIM-SE-SC-15B) | 15B | [StarCoder](https://github.com/bigcode-project/starcoder/blob/main/LICENSE) |

## How to Use

#### Prompt Format

As shown in the figure, the prompt is organized as
```text
<PRE>R-Prefix<SUF>R-Suffix<START>L-Prefix<END>F-Suffix<MID>
```

#### Inference Code
Please refer to our [GitHub Repo](https://github.com/SenseLLM/FIM-SE) for more technical details.

## Citation

If you find this repo useful for your research, please kindly cite our paper:
```
@misc{ren2024empowering,
    title={Empowering Character-level Text Infilling by Eliminating Sub-Tokens}, 
    author={Houxing Ren and Mingjie Zhan and Zhongyuan Wu and Hongsheng Li},
    year={2024},
    eprint={2405.17103},
    archivePrefix={arXiv},
    primaryClass={cs.CL}
}
```

## Acknowledgments

We thank the following amazing projects that truly inspired us:

- [FIM](https://arxiv.org/abs/2207.14255)