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arXiv · 2502.10916

An Open-Source Web-Based Tool for Evaluating Open-Source Large Language Models Leveraging Information Retrieval from Custom Documents

Godfrey I
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Abstract

In our work, we present the first-of-its-kind open-source web-based tool which is able to demonstrate the impacts of a user's speech act during discourse with conversational agents, which leverages open-source large language models. With this software resource, it is possible for researchers and experts to evaluate the performance of various dialogues, visualize the user's communicative intents, and utilise uploaded specific documents for the chat agent to use for its information retrieval to respond to the user query. The context gathered by these models is obtained from a set of linguistic features extracted, which forms the context embeddings of the models. Regardless of these models showing good context understanding based on these features, there still remains a gap in including deeper pragmatic features to improve the model's comprehension of the query, hence the efforts to develop this web resource, which is able to extract and then inject this overlooked feature in the encoder-decoder pipeline of the conversational agent. To demonstrate the effect and impact of the resource, we carried out an experiment which evaluated the system using 2 knowledge files for information retrieval, with two user queries each, across 5 open-source large language models using 10 standard metrics. Our results showed that larger open-source models, demonstrated an improved alignment when the user speech act was included with their query. The smaller models in contrast showed an increased perplexity and mixed performance, which explicitly indicated struggles in processing queries that explicitly included speech acts. The results from the analysis using the developed web resource highlight the potential of speech acts towards enhancing conversational depths while underscoring the need for model-specific optimizations to address increased computational costs and response times.

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Godfrey I. 2025-02-19. An Open-Source Web-Based Tool for Evaluating Open-Source Large Language Models Leveraging Information Retrieval from Custom Documents. https://arxiv.org/abs/2502.10916

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