Systematic Task Exploration with LLMs: A Study in Citation Text Generation
This work addresses the problem of inconsistent task formulation and evaluation for researchers working on creative NLG tasks with LLMs, though it is incremental in applying systematic exploration to a specific domain.
The authors tackled the challenge of systematically exploring creative natural language generation tasks with LLMs, focusing on citation text generation where task definitions and evaluation metrics lack consensus. Their proposed three-component framework revealed non-trivial relationships between evaluation metrics and provided qualitative insights through human experiments.
Large language models (LLMs) bring unprecedented flexibility in defining and executing complex, creative natural language generation (NLG) tasks. Yet, this flexibility brings new challenges, as it introduces new degrees of freedom in formulating the task inputs and instructions and in evaluating model performance. To facilitate the exploration of creative NLG tasks, we propose a three-component research framework that consists of systematic input manipulation, reference data, and output measurement. We use this framework to explore citation text generation -- a popular scholarly NLP task that lacks consensus on the task definition and evaluation metric and has not yet been tackled within the LLM paradigm. Our results highlight the importance of systematically investigating both task instruction and input configuration when prompting LLMs, and reveal non-trivial relationships between different evaluation metrics used for citation text generation. Additional human generation and human evaluation experiments provide new qualitative insights into the task to guide future research in citation text generation. We make our code and data publicly available.