CHIMERA: A Knowledge Base of Idea Recombination in Scientific Literature

• URL: http://arxiv.org/abs/2505.20779v3
• Date: Thu, 05 Jun 2025 15:20:59 GMT
• Title: CHIMERA: A Knowledge Base of Idea Recombination in Scientific Literature
• Authors: Noy Sternlicht, Tom Hope,
• Abstract summary: We build CHIMERA: a large-scale knowledge base (KB) of recombination examples.<n>ChiMERA can be used to explore how scientists recombine concepts and take inspiration from different areas.<n>We analyze CHIMERA to explore the properties of recombination in different subareas of AI.
• Score: 7.086262532457526
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: A hallmark of human innovation is the process of recombination -- creating original ideas by integrating elements of existing mechanisms and concepts. In this work, we automatically mine the scientific literature and build CHIMERA: a large-scale knowledge base (KB) of recombination examples. CHIMERA can be used to empirically explore at scale how scientists recombine concepts and take inspiration from different areas, or to train supervised machine learning models that learn to predict new creative cross-domain directions. To build this KB, we present a novel information extraction task of extracting recombination from scientific paper abstracts, collect a high-quality corpus of hundreds of manually annotated abstracts, and use it to train an LLM-based extraction model. The model is applied to a large corpus of papers in the AI domain, yielding a KB of over 28K recombination examples. We analyze CHIMERA to explore the properties of recombination in different subareas of AI. Finally, we train a scientific hypothesis generation model using the KB, which predicts new recombination directions that real-world researchers find inspiring. Our data and code are available at https://github.com/noy-sternlicht/CHIMERA-KB

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