LLM-Enhanced Data Management

• URL: http://arxiv.org/abs/2402.02643v1
• Date: Sun, 4 Feb 2024 23:42:02 GMT
• Title: LLM-Enhanced Data Management
• Authors: Xuanhe Zhou, Xinyang Zhao, Guoliang Li
• Abstract summary: Large language models (LLMs) have shown high generalizability and human-competitive abilities in understanding context. LLMs have several limitations: hallucination, high cost, and low accuracy for complicated tasks. We design LLMDB, an LLM-enhanced data management paradigm which has generalizability and high inference ability while avoiding hallucination.
• Score: 17.382233123729755
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Machine learning (ML) techniques for optimizing data management problems have been extensively studied and widely deployed in recent five years. However traditional ML methods have limitations on generalizability (adapting to different scenarios) and inference ability (understanding the context). Fortunately, large language models (LLMs) have shown high generalizability and human-competitive abilities in understanding context, which are promising for data management tasks (e.g., database diagnosis, database tuning). However, existing LLMs have several limitations: hallucination, high cost, and low accuracy for complicated tasks. To address these challenges, we design LLMDB, an LLM-enhanced data management paradigm which has generalizability and high inference ability while avoiding hallucination, reducing LLM cost, and achieving high accuracy. LLMDB embeds domain-specific knowledge to avoid hallucination by LLM fine-tuning and prompt engineering. LLMDB reduces the high cost of LLMs by vector databases which provide semantic search and caching abilities. LLMDB improves the task accuracy by LLM agent which provides multiple-round inference and pipeline executions. We showcase three real-world scenarios that LLMDB can well support, including query rewrite, database diagnosis and data analytics. We also summarize the open research challenges of LLMDB.

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