lmvasque/prompt-ls-es-1

UoM&MMU at TSAR-2022 Shared Task - Prompt Learning for Lexical Simplification: prompt-ls-es-1

We present PromptLS, a method for fine-tuning large pre-trained masked language models to perform the task of Lexical Simplification. This model is part of a series of models presented at the TSAR-2022 Shared Task by the University of Manchester and Manchester Metropolitan University (UoM&MMU) Team in English, Spanish and Portuguese. You can find more details about the project in our GitHub.

Models

Our models were fine-tuned using prompt-learning for Lexical Simplification. These are the available models you can use (current model page in bold):

Model Name	Run #	Language	Setting
prompt-ls-en-1	1	English	fine-tune
prompt-ls-en-2	2	English	fine-tune
roberta-large	3	English	zero-shot
prompt-ls-es-1	1	Spanish	fine-tune
prompt-ls-es-2	2	Spanish	fine-tune
prompt-ls-es-3	3	Spanish	fine-tune
prompt-ls-pt-1	1	Portuguese	fine-tune
prompt-ls-pt-2	2	Portuguese	fine-tune
prompt-ls-pt-3	3	Portuguese	fine-tune

For the zero-shot setting, we used the original models with no further training. Links to these models are also updated in the table above.

Results

We include the official results from the competition test set as a reference. However, we encourage the users to also check our results in the development set, which show an increased performance for Spanish and Portuguese. You can find more details in our paper.

Language	#	Model	Setting	Prompt1	Prompt2	w	k	Acc@1	A@3	M@3	P@3
English	1	RoBERTa-L	fine-tune	simple	word	5	5	0.6353	0.5308	0.4244	0.8739
English	2	mBERT	multilingual	easier	word	10	10	0.4959	0.4235	0.3273	0.7560
English	3	RoBERTa-L	zero-shot	easier	word	5	-	0.2654	0.268	0.1820	0.4906
Spanish	1	BERTIN	fine-tune	sinónimo	fácil	-	3	0.3451	0.2907	0.2238	0.5543
Spanish	2	BERTIN	fine-tune	palabra	simple	-	10	0.3614	0.2907	0.2225	0.538
Spanish	3	BERTIN	fine-tune	sinónimo	fácil	10	10	0.3668	0.269	0.2128	0.5326
Portuguese	1	BR_BERTo	fine-tune	palavra	simples	-	8	0.1711	0.1096	0.1011	0.2486
Portuguese	2	BR_BERTo	fine-tune	sinônimo	fácil	-	10	0.1363	0.0962	0.0944	0.2379
Portuguese	3	BR_BERTo	fine-tune	sinônimo	simples	5	10	0.1577	0.1283	0.1071	0.2834

Citation

If you use our results and scripts in your research, please cite our work: "UoM&MMU at TSAR-2022 Shared Task: Prompt Learning for Lexical Simplification".

@inproceedings{vasquez-rodriguez-etal-2022-prompt-ls,
    title = "UoM\&MMU at TSAR-2022 Shared Task: Prompt Learning for Lexical Simplification",
    author = "V{\'a}squez-Rodr{\'\i}guez, Laura  and
      Nguyen, Nhung T. H. and
      Shardlow, Matthew and
      Ananiadou, Sophia",
    booktitle = "Shared Task on Text Simplification, Accessibility, and Readability (TSAR-2022), EMNLP 2022",
    month = dec,
    year = "2022",
}