HARPA: A Testability-Driven, Literature-Grounded Framework for Research Ideation

Fuente: arXiv
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Main Authors: Vasu, Rosni, Jansen, Peter, Siangliulue, Pao, Sarasua, Cristina, Bernstein, Abraham, Clark, Peter, Mishra, Bhavana Dalvi
Format: Preprint
Published: 2025
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author Vasu, Rosni
Jansen, Peter
Siangliulue, Pao
Sarasua, Cristina
Bernstein, Abraham
Clark, Peter
Mishra, Bhavana Dalvi
author_facet Vasu, Rosni
Jansen, Peter
Siangliulue, Pao
Sarasua, Cristina
Bernstein, Abraham
Clark, Peter
Mishra, Bhavana Dalvi
contents While there has been a surge of interest in automated scientific discovery (ASD), especially with the emergence of LLMs, it remains challenging for tools to generate hypotheses that are both testable and grounded in the scientific literature. Additionally, existing ideation tools are not adaptive to prior experimental outcomes. We developed HARPA to address these challenges by incorporating the ideation workflow inspired by human researchers. HARPA first identifies emerging research trends through literature mining, then explores hypothesis design spaces, and finally converges on precise, testable hypotheses by pinpointing research gaps and justifying design choices. Our evaluations show that HARPA-generated hypothesis-driven research proposals perform comparably to a strong baseline AI-researcher across most qualitative dimensions (e.g., specificity, novelty, overall quality), but achieve significant gains in feasibility(+0.78, p$<0.05$, bootstrap) and groundedness (+0.85, p$<0.01$, bootstrap) on a 10-point Likert scale. When tested with the ASD agent (CodeScientist), HARPA produced more successful executions (20 vs. 11 out of 40) and fewer failures (16 vs. 21 out of 40), showing that expert feasibility judgments track with actual execution success. Furthermore, to simulate how researchers continuously refine their understanding of what hypotheses are both testable and potentially interesting from experience, HARPA learns a reward model that scores new hypotheses based on prior experimental outcomes, achieving approx. a 28\% absolute gain over HARPA's untrained baseline scorer. Together, these methods represent a step forward in the field of AI-driven scientific discovery.
format Preprint
id arxiv_https___arxiv_org_abs_2510_00620
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle HARPA: A Testability-Driven, Literature-Grounded Framework for Research Ideation
Vasu, Rosni
Jansen, Peter
Siangliulue, Pao
Sarasua, Cristina
Bernstein, Abraham
Clark, Peter
Mishra, Bhavana Dalvi
Artificial Intelligence
Computation and Language
While there has been a surge of interest in automated scientific discovery (ASD), especially with the emergence of LLMs, it remains challenging for tools to generate hypotheses that are both testable and grounded in the scientific literature. Additionally, existing ideation tools are not adaptive to prior experimental outcomes. We developed HARPA to address these challenges by incorporating the ideation workflow inspired by human researchers. HARPA first identifies emerging research trends through literature mining, then explores hypothesis design spaces, and finally converges on precise, testable hypotheses by pinpointing research gaps and justifying design choices. Our evaluations show that HARPA-generated hypothesis-driven research proposals perform comparably to a strong baseline AI-researcher across most qualitative dimensions (e.g., specificity, novelty, overall quality), but achieve significant gains in feasibility(+0.78, p$<0.05$, bootstrap) and groundedness (+0.85, p$<0.01$, bootstrap) on a 10-point Likert scale. When tested with the ASD agent (CodeScientist), HARPA produced more successful executions (20 vs. 11 out of 40) and fewer failures (16 vs. 21 out of 40), showing that expert feasibility judgments track with actual execution success. Furthermore, to simulate how researchers continuously refine their understanding of what hypotheses are both testable and potentially interesting from experience, HARPA learns a reward model that scores new hypotheses based on prior experimental outcomes, achieving approx. a 28\% absolute gain over HARPA's untrained baseline scorer. Together, these methods represent a step forward in the field of AI-driven scientific discovery.
title HARPA: A Testability-Driven, Literature-Grounded Framework for Research Ideation
topic Artificial Intelligence
Computation and Language
url https://arxiv.org/abs/2510.00620