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Paper Index on ACL Anthology

A Bounded Coordination-Support Capability for Multi-Party Settings: Task-State Monitoring in Firefighter Incident Command A Dataset of Latin Etymologies Extracted from Wiktionary An Efficient Approach for Answering Not Readily Attainable Questions for RAG-based Applications Automated German Alt Text Generation for News Charts Call Support Copilot: A Reproducible Multimodal System for Speech Emotion Recognition, Intent Understanding, and Agent Assistance Can Large Language Models Replace Statistical Software? Code-Switching Detection in Multilingual Child Speech with SwissBERT Concept Extraction and Webb’s Depth of Knowledge: Comparing LLM Question Generation Pipelines for Educational Assessment Data Augmentation for Historical NER: A Systematic Comparison of Lexical and LLM-based Approaches Enhancing Retrieval via Cognitively Motivated Document Expansion Extending the Contact Hypothesis: Cross-Linguistic Evaluation of Religion and Nationality Bias When Prompting LLMs in German and Icelandic Extracting Article-Level Legal Dependencies from Swiss Federal Law using LLMs How Good is AI on Swiss Voting Booklets? A Multilingual OCR and Alignment Benchmark Optimizing Large Language Models for Robust Domain-Specific Text-to-SQL: From Prompting to Preference Alignment Proceedings of the 11th Edition of the Swiss Text Analytics Conference Reinforcement Learning for Latent-Space Thinking in LLMs RUMLEM: A Dictionary-Based Lemmatizer for Romansh Skill Extraction from Resumes and Job Offers across Six Languages Text vs. Phoneme Intermediates for Low-Resource Swiss German The Same Email, Signed Differently: Testing Negotiation Bias and Recommendation Stability in LLMs Which Skills Debate Reaches the Public? Comparing Scientific Literature and Media Coverage of AI and LLM Skill Impacts (2022–2025) Controlling Language and Style of Multi-lingual Generative Language Models with Control Vectors Hybrid Human-LLM Corpus Construction and LLM Evaluation for the Caused-Motion Construction Implicit and Indirect: Detecting Face-threatening and Paired Actions in Asynchronous Online Conversations Northern European Journal of Language Technology, Volume 11 A modular architecture for creating multimodal embodied agents with an episodic Knowledge Graph as an explainable and controllable long-term memory A Neural Approach to Discourse Relation Signal Detection An Analysis of Japanese Sentence-final Particle Yone: Compare Yone and Ne in Response Attribution and the discourse structure of reports Automatic Detection of the Bulgarian Evidential Renarrative
Lispector: Fine-tuning de Modelos de Linguagem para Revis...
2026-04-13 · via Paper Index on ACL Anthology

Abstract

Este trabalho apresenta o Lispector, uma família de modelos de linguagem especializados para revisão gramatical e ortográfica em português brasileiro. Comparamos duas estratégias de inferência para a tarefa de correção gramatical de texto com grandes modelos de linguagem (LLMs): (1) fine-tuning supervisionado e (2) prompting few-shot em modelos de maior escala. Utilizando um conjunto de dados de 4.500 pares de textos reais de usuários (2.500 registros para treino, 1.000 para avaliação e 1.000 para teste), com referências corrigidas por linguistas, analisamos duas variantes do Lispector baseadas em diferentes tamanhos de parâmetros. A avaliação empregou as métricas BLEU, GLEU, METEOR e ROUGE. Os resultados demonstram que modelos menores submetidos a fine-tuning supervisionado superam consistentemente em todas as métricas modelos maiores que operam apenas com prompting, com o Lispector small alcançando ganhos expressivos em métricas de similaridade textual como GLEU (+12%) e BLEU (+13%). Assim, além do aumento de desempenho, os modelos fine-tuned apresentam comportamento mais previsível e conservador, características desejáveis em aplicações industriais de escrita assistida. No quesito latência, o Lispector small obteve a menor mediana de tempo de resposta entre todos os modelos e o menor P95 entre os fine-tuned; o Lispector large também se mostrou competitivo. Esses achados indicam que, para tarefas específicas de revisão textual em português brasileiro, o fine-tuning pode oferecer vantagens significativas em desempenho e eficiência computacional.

Anthology ID:
2026.propor-2.8
Volume:
Proceedings of the 17th International Conference on Computational Processing of Portuguese (PROPOR 2026) - Vol. 2
Month:
April
Year:
2026
Address:
Salvador, Brazil
Editors:
Marlo Souza, Iria de-Dios-Flores, Diana Santos, Larissa Freitas, Jackson Wilke da Cruz Souza, Eugénio Ribeiro
Venue:
PROPOR
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
25–29
Language:
URL:
https://aclanthology.org/2026.propor-2.8/
DOI:
Bibkey:
Cite (ACL):
Andresa Medeiros, Felipe Iszlaji, Claudia Sarmiento-Moreno, Camila Muniz, Larissa Ponciano, Larissa Dejigov, Ronald Monteiro, Pedro Kretikouski, and Guilherme Chaves. 2026. Lispector: Fine-tuning de Modelos de Linguagem para Revisão Gramatical e Ortográfica em Português Brasileiro. In Proceedings of the 17th International Conference on Computational Processing of Portuguese (PROPOR 2026) - Vol. 2, pages 25–29, Salvador, Brazil. Association for Computational Linguistics.
Cite (Informal):
Lispector: Fine-tuning de Modelos de Linguagem para Revisão Gramatical e Ortográfica em Português Brasileiro (Medeiros et al., PROPOR 2026)
Copy Citation:
PDF:
https://aclanthology.org/2026.propor-2.8.pdf