---
license: cc-by-nc-sa-4.0
pipeline_tag: fill-mask
language: en
tags:
- legal
- long-documents
---

# Legal Longformer (base)

This is a derivative model based on the [LexLM (base)](https://huggingface.co/lexlms/roberta-base-cased) RoBERTa model. All model parameters where cloned from the original model, while the positional embeddings were extended by cloning the original embeddings multiple times following [Beltagy et al. (2020)](https://arxiv.org/abs/2004.05150) using a python script similar to this one (https://github.com/allenai/longformer/blob/master/scripts/convert_model_to_long.ipynb).