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README.md
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## LCHAIM: A Hebrew Natural Language Inference Dataset
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### Overview
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LCHAIM is a dataset designed to evaluate Natural Language Inference (NLI) models in Hebrew. Unlike English, Hebrew is a Morphologically Rich Language (MRL), requiring more research to develop robust NLI models. LCHAIM provides a benchmark for models that need to handle long premises and complex reasoning in Hebrew.
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### Dataset Description
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LCHAIM was created by translating and validating the English ConTRoL dataset into Hebrew. It consists of 8,325 context-hypothesis pairs that require various types of reasoning, including:
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* Coreferential reasoning
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* Temporal reasoning
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* Logical reasoning
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* Analytical reasoning
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### Performance Benchmarks
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Experiments with LCHAIM highlight the challenges of contextual reasoning in Hebrew. Key results include:
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Fine-tuning the LongHero model on both Hebrew NLI datasets and LCHAIM yielded a mean accuracy of 52%, which is 35% (absolute) lower than human performance.
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Large Language Models (LLMs) in a few-shot setting achieved the following top mean accuracies:
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* Gemma-9B
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* Dicta-LM-2.0-7B
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* GPT-4o
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Top performance: 60.12% mean accuracy
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### Citation
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If you use LCHAIM in your research, please cite our work, which should be published in the next month
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### License
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LCHAIM is released under the mit license.
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### Contact
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For questions or feedback, please contact orielpe@post.bgu.ac.il
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