SEAM: A Stochastic Benchmark for Multi-Document Tasks

• URL: http://arxiv.org/abs/2406.16086v1
• Date: Sun, 23 Jun 2024 11:57:53 GMT
• Title: SEAM: A Stochastic Benchmark for Multi-Document Tasks
• Authors: Gili Lior, Avi Caciularu, Arie Cattan, Shahar Levy, Ori Shapira, Gabriel Stanovsky,
• Abstract summary: There is currently no benchmark which measures abilities of large language models (LLMs) on multi-document tasks. We present SEAM (a Evaluation Approach for Multi-document tasks), a conglomerate benchmark over a diverse set of multi-document datasets. We find that multi-document tasks pose a significant challenge for LLMs, even for state-of-the-art models with 70B parameters.
• Score: 30.153949809172605
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Various tasks, such as summarization, multi-hop question answering, or coreference resolution, are naturally phrased over collections of real-world documents. Such tasks present a unique set of challenges, revolving around the lack of coherent narrative structure across documents, which often leads to contradiction, omission, or repetition of information. Despite their real-world application and challenging properties, there is currently no benchmark which specifically measures the abilities of large language models (LLMs) on multi-document tasks. To bridge this gap, we present SEAM (a Stochastic Evaluation Approach for Multi-document tasks), a conglomerate benchmark over a diverse set of multi-document datasets, setting conventional evaluation criteria, input-output formats, and evaluation protocols. In particular, SEAM addresses the sensitivity of LLMs to minor prompt variations through repeated evaluations, where in each evaluation we sample uniformly at random the values of arbitrary factors (e.g., the order of documents). We evaluate different LLMs on SEAM finding that multi-document tasks pose a significant challenge for LLMs, even for state-of-the-art models with 70B parameters. In addition, we show that the stochastic approach uncovers underlying statistical trends which cannot be observed in a static benchmark. We hope that SEAM will spur progress via consistent and meaningful evaluation of multi-document tasks.

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