In artificial intelligence, knowledge graph completion (KGC) plays a vital role in various applications, including intelligent question-answering, recommendation systems, and dialogue systems. However, traditional KGE methods have limitations when it comes to handling unstructured data and complex reasoning capabilities. The rapid development of large language models (LLMs) has opened new prospects for KGC tasks, but their integration with traditional KGE methods raises new challenges.
A recent study proposes a knowledge-guided LLM reasoning framework that retrieves analogical knowledge and subgraph knowledge from the knowledge graph to enhance the LLM’s logical reasoning ability. The model guides the LLM to filter and rerank candidate entities by integrating a chain-of-thought prompting strategy, constraining its output to reduce omissions and incorrect responses.
The experimental results demonstrate the effectiveness of this framework on the FB15k237 dataset, outperforming the entity generation model CompGCN with a 48% improvement in MRR and a 58% improvement in Hits1. This suggests that the knowledge-guided LLM reasoning framework can provide more accurate predictions by leveraging the strengths of both traditional KGE methods and large language models.
As researchers continue to refine this framework, its potential applications in real-world scenarios are vast, with possibilities for improving intelligent question answering, recommendation systems, and dialogue systems.
Knowledge graph completion (KGC) is a crucial task that involves inferring missing entities or relationships within a knowledge graph. This task plays a vital role across various domains, including intelligent question answering, recommendation systems, and dialogue systems. Traditional knowledge graph embedding (KGE) methods have proven effective in utilizing structured data and relationships. However, these methods often overlook the vast amounts of unstructured data and the complex reasoning capabilities required to handle ambiguous queries or rare entities.
In recent years, the rapid development of large language models (LLMs) has demonstrated exceptional potential in text comprehension and contextual reasoning, offering new prospects for KGC tasks. By using traditional KGE to capture the structural information of entities and relations to generate candidate entities and then reranking them with a generative LLM, the output of the LLM can be constrained to improve reliability. Despite this, new challenges such as omissions and incorrect responses arise during the ranking process.
Traditional KGE methods have been effective in utilizing structured data and relationships within knowledge graphs. However, these methods often overlook the vast amounts of unstructured data and the complex reasoning capabilities required to handle ambiguous queries or rare entities. This limitation can lead to omissions and incorrect responses during the ranking process.
LLMs’ rapid development has demonstrated exceptional text comprehension and contextual reasoning potential, offering new prospects for KGC tasks. However, the integration of traditional KGE methods with LLMs can be challenging, as the output of the LLM needs to be constrained to improve reliability. This constraint can lead to a trade-off between accuracy and reliability.
To address these issues, a knowledge-guided LLM reasoning for knowledge graph completion (KLRKGC) framework is proposed. This model retrieves two types of knowledge from the knowledge graph: analogical knowledge and subgraph knowledge. These types of knowledge are used to enhance the LLM’s logical reasoning ability for specific tasks while injecting relevant additional knowledge.
The KLRKGC framework aims to learn and uncover the latent correspondences between entities, guiding the LLM to make reasonable inferences based on supplementary knowledge for more accurate predictions. The experimental results demonstrate that on the FB15k237 dataset, KLRKGC outperformed the entity generation model CompGCN, achieving a 48% improvement in MRR and a 58% improvement in Hits1.
The KLRKGC framework works by retrieving two types of knowledge from the knowledge graph: analogical knowledge and subgraph knowledge. These types of knowledge enhance the LLM’s logical reasoning ability for specific tasks while injecting relevant additional knowledge.
The model guides the LLM to filter and rerank candidate entities, constraining its output to reduce omissions and incorrect responses. The framework aims to learn and uncover the latent correspondences between entities, guiding the LLM to make reasonable inferences based on supplementary knowledge for more accurate predictions.
The experimental results demonstrate that on the FB15k237 dataset, KLRKGC outperformed the entity generation model CompGCN, achieving a 48% improvement in MRR and a 58% improvement in Hits1. These results indicate that the KLRKGC framework is effective in addressing the limitations of traditional KGE methods and improving the accuracy of knowledge graph completion tasks.
LLMs have demonstrated exceptional potential in text comprehension and contextual reasoning, offering new prospects for KGC tasks. However, the integration of traditional KGE methods with LLMs can be challenging, as the output of the LLM needs to be constrained to improve reliability.
The KLRKGC framework proposes a solution to this challenge by using analogical knowledge and subgraph knowledge to enhance the LLM’s logical reasoning ability for specific tasks while injecting relevant additional knowledge. This approach aims to learn and uncover the latent correspondences between entities, guiding the LLM to make reasonable inferences based on supplementary knowledge for more accurate predictions.
The KLRKGC framework has the potential to improve the accuracy of knowledge graph completion tasks by addressing the limitations of traditional KGE methods. However, further research is needed to fully understand the capabilities and limitations of this framework.
Publication details: “KLR-KGC: Knowledge-Guided LLM Reasoning for Knowledge Graph Completion”
Publication Date: 2024-12-21
Authors: Shengwei Ji, Longfei Liu, Jizhong Xi, Xiaoxue Zhang, et al.
Source: Electronics
DOI: https://doi.org/10.3390/electronics13245037
