Generative Language Models with Retrieval Augmented Generation for Automated Short Answer Scoring

Fuente: arXiv
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Main Authors: Wang, Zifan, Ormerod, Christopher
Format: Preprint
Published: 2024
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author Wang, Zifan
Ormerod, Christopher
author_facet Wang, Zifan
Ormerod, Christopher
contents Automated Short Answer Scoring (ASAS) is a critical component in educational assessment. While traditional ASAS systems relied on rule-based algorithms or complex deep learning methods, recent advancements in Generative Language Models (GLMs) offer new opportunities for improvement. This study explores the application of GLMs to ASAS, leveraging their off-the-shelf capabilities and performance in various domains. We propose a novel pipeline that combines vector databases, transformer-based encoders, and GLMs to enhance short answer scoring accuracy. Our approach stores training responses in a vector database, retrieves semantically similar responses during inference, and employs a GLM to analyze these responses and determine appropriate scores. We further optimize the system through fine-tuned retrieval processes and prompt engineering. Evaluation on the SemEval 2013 dataset demonstrates a significant improvement on the SCIENTSBANK 3-way and 2-way tasks compared to existing methods, highlighting the potential of GLMs in advancing ASAS technology.
format Preprint
id arxiv_https___arxiv_org_abs_2408_03811
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Generative Language Models with Retrieval Augmented Generation for Automated Short Answer Scoring
Wang, Zifan
Ormerod, Christopher
Computation and Language
Artificial Intelligence
Information Retrieval
Automated Short Answer Scoring (ASAS) is a critical component in educational assessment. While traditional ASAS systems relied on rule-based algorithms or complex deep learning methods, recent advancements in Generative Language Models (GLMs) offer new opportunities for improvement. This study explores the application of GLMs to ASAS, leveraging their off-the-shelf capabilities and performance in various domains. We propose a novel pipeline that combines vector databases, transformer-based encoders, and GLMs to enhance short answer scoring accuracy. Our approach stores training responses in a vector database, retrieves semantically similar responses during inference, and employs a GLM to analyze these responses and determine appropriate scores. We further optimize the system through fine-tuned retrieval processes and prompt engineering. Evaluation on the SemEval 2013 dataset demonstrates a significant improvement on the SCIENTSBANK 3-way and 2-way tasks compared to existing methods, highlighting the potential of GLMs in advancing ASAS technology.
title Generative Language Models with Retrieval Augmented Generation for Automated Short Answer Scoring
topic Computation and Language
Artificial Intelligence
Information Retrieval
url https://arxiv.org/abs/2408.03811