LoSemB: Logic-Guided Semantic Bridging for Inductive Tool Retrieval

• URL: http://arxiv.org/abs/2508.07690v1
• Date: Mon, 11 Aug 2025 07:07:18 GMT
• Title: LoSemB: Logic-Guided Semantic Bridging for Inductive Tool Retrieval
• Abstract summary: We introduce a Logic-Guided Semantic Bridging framework for inductive tool retrieval, namely, LoSemB.<n>LoSemB aims to mine and transfer latent logical information for inductive tool retrieval without costly retraining.
• Score: 20.24121370193077
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: Tool learning has emerged as a promising paradigm for large language models (LLMs) to solve many real-world tasks. Nonetheless, with the tool repository rapidly expanding, it is impractical to contain all tools within the limited input length of LLMs. To alleviate these issues, researchers have explored incorporating a tool retrieval module to select the most relevant tools or represent tools as unique tokens within LLM parameters. However, most state-of-the-art methods are under transductive settings, assuming all tools have been observed during training. Such a setting deviates from reality as the real-world tool repository is evolving and incorporates new tools frequently. When dealing with these unseen tools, which refer to tools not encountered during the training phase, these methods are limited by two key issues, including the large distribution shift and the vulnerability of similarity-based retrieval. To this end, inspired by human cognitive processes of mastering unseen tools through discovering and applying the logical information from prior experience, we introduce a novel Logic-Guided Semantic Bridging framework for inductive tool retrieval, namely, LoSemB, which aims to mine and transfer latent logical information for inductive tool retrieval without costly retraining. Specifically, LoSemB contains a logic-based embedding alignment module to mitigate distribution shifts and implements a relational augmented retrieval mechanism to reduce the vulnerability of similarity-based retrieval. Extensive experiments demonstrate that LoSemB achieves advanced performance in inductive settings while maintaining desirable effectiveness in the transductive setting.

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