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README.md
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---
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license: apache-2.0
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language:
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- sr
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metrics:
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- accuracy
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base_model:
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- classla/bcms-bertic
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library_name: transformers
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---
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# BERTić-COMtext-SR-legal-lemma-ijekavica
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**BERTić-COMtext-SR-legal-lemma-ijekavica** is a variant of the [BERTić](https://huggingface.co/classla/bcms-bertic) model, fine-tuned on the task of lemmatization tag prediction in Serbian legal texts written in the Ijekavian pronunciation.
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The model was fine-tuned for 20 epochs on the Ijekavian variant of the [COMtext.SR.legal](https://github.com/ICEF-NLP/COMtext.SR) dataset.
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# Benchmarking
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This model was evaluated on the task of lemmatizing Serbian legal texts.
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Lemmatization was performed using the predicted string edit tags, as described in this JTDH 2024 paper:
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* [Lemmatizing Serbian and Croatian via String Edit Prediction](https://zenodo.org/records/13937204)
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The model was compared to previous lemmatization approaches that relied on the [hrLex](http://hdl.handle.net/11356/1232) inflectional lexicon:
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- The [CLASSLA](http://pypi.org/project/classla/) library
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- A variant of [BERTić](https://huggingface.co/classla/bcms-bertic) fine-tuned for MSD prediction using the [SETimes.SR 2.0](http://hdl.handle.net/11356/1843) corpus of newswire texts
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- A [variant](https://huggingface.co/ICEF-NLP/bcms-bertic-comtext-sr-legal-msd-ijekavica) of [BERTić](https://huggingface.co/classla/bcms-bertic) fine-tuned for MSD prediction using the [COMtext.SR.legal](https://github.com/ICEF-NLP/COMtext.SR) corpus of legal texts
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- [SrBERTa](http://huggingface.co/nemanjaPetrovic/SrBERTa), a model specially trained on Serbian legal texts, fine-tuned for MSD prediction using the [COMtext.SR.legal](https://github.com/ICEF-NLP/COMtext.SR) corpus of legal texts
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Accuracy was used as the evaluation metric and gold tokenized text was taken as input.
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All of the previous large language models were fine-tuned for 15 epochs.
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CLASSLA and BERTić-SETimes were directly tested on the entire COMtext.SR.legal.ijekavica corpus.
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BERTić-COMtext-SR-legal-MSD-ijekavica, BERTić-COMtext-SR-legal-lemma-ijekavica, and SrBERTa were fine-tuned and evaluated on the COMtext.SR.legal.ijekavica corpus using 10-fold CV.
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The code and data to run these experiments is available on the [COMtext.SR GitHub repository](https://github.com/ICEF-NLP/COMtext.SR).
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## Results
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| Model | Lemma ACC |
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| ------------------------------------------- | ---------- |
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| CLASSLA-SR | 0.9036 |
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| CLASSLA-HR | 0.9353 |
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| BERTić-SETimes.SR | 0.9412 |
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| BERTić-COMtext-SR-legal-MSD-ijekavica | 0.9429 |
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| SrBERTa | 0.9187 |
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| **BERTić-COMtext-SR-legal-lemma-ijekavica** | **0.9833** |
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