ERBench: An Entity-Relationship based Automatically Verifiable Hallucination Benchmark for Large Language Models

• URL: http://arxiv.org/abs/2403.05266v3
• Date: Sun, 03 Nov 2024 18:38:50 GMT
• Title: ERBench: An Entity-Relationship based Automatically Verifiable Hallucination Benchmark for Large Language Models
• Authors: Jio Oh, Soyeon Kim, Junseok Seo, Jindong Wang, Ruochen Xu, Xing Xie, Steven Euijong Whang,
• Abstract summary: Large language models (LLMs) have achieved unprecedented performances in various applications, yet evaluating them is still challenging. We contend that utilizing existing relational databases is a promising approach for constructing benchmarks. We propose ERBench, which uses these integrity constraints to convert any database into an LLM benchmark.
• Score: 46.07900122810749
• License:
• Abstract: Large language models (LLMs) have achieved unprecedented performances in various applications, yet evaluating them is still challenging. Existing benchmarks are either manually constructed or are automatic, but lack the ability to evaluate the thought process of LLMs with arbitrary complexity. We contend that utilizing existing relational databases based on the entity-relationship (ER) model is a promising approach for constructing benchmarks as they contain structured knowledge that can be used to question LLMs. Unlike knowledge graphs, which are also used to evaluate LLMs, relational databases have integrity constraints that can be used to better construct complex in-depth questions and verify answers: (1) functional dependencies can be used to pinpoint critical keywords that an LLM must know to properly answer a given question containing certain attribute values; and (2) foreign key constraints can be used to join relations and construct multi-hop questions, which can be arbitrarily long and used to debug intermediate answers. We thus propose ERBench, which uses these integrity constraints to convert any database into an LLM benchmark. ERBench supports continuous evaluation as databases change, multimodal questions, and various prompt engineering techniques. In our experiments, we construct LLM benchmarks using databases of multiple domains and make an extensive comparison of contemporary LLMs. We show how ERBench can properly evaluate any LLM by not only checking for answer correctness, but also effectively verifying the rationales by looking for the right keywords.

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