An Axiomatic Benchmark for Evaluation of Scientific Novelty Metrics

• URL: http://arxiv.org/abs/2604.15145v1
• Date: Thu, 16 Apr 2026 15:19:58 GMT
• Title: An Axiomatic Benchmark for Evaluation of Scientific Novelty Metrics
• Abstract summary: We propose an axiomatic benchmark for scientific novelty metrics.<n>We first define a set of axioms that a well-behaved novelty metric should satisfy, grounded in human scientific norms and practice.<n>Our results reveal that no existing metric satisfies all axioms consistently, and that metrics fail on systematically different axioms.
• Score: 23.961724862932854
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: The rigorous evaluation of the novelty of a scientific paper is, even for human scientists, a challenging task. With the increasing interest in AI scientists and AI involvement in scientific idea generation and paper writing, it also becomes increasingly important that this task be automatable and reliable, lest both human attention and compute tokens be wasted on ideas that have already been explored. Due to the challenge of quantifying ground-truth novelty, however, existing novelty metrics for scientific papers generally validate their results against noisy, confounded signals such as citation counts or peer review scores. These proxies can conflate novelty with impact, quality, or reviewer preference, which in turn makes it harder to assess how well a given metric actually evaluates novelty. We therefore propose an axiomatic benchmark for scientific novelty metrics. We first define a set of axioms that a well-behaved novelty metric should satisfy, grounded in human scientific norms and practice, then evaluate existing metrics across ten tasks spanning three domains of AI research. Our results reveal that no existing metric satisfies all axioms consistently, and that metrics fail on systematically different axioms, reflecting their underlying architectures. Additionally, we show that combining metrics of complementary architectures leads to consistent improvements on the benchmark, with per-axiom weighting achieving 90.1% versus 71.5% for the best individual metric, suggesting that developing architecturally diverse metrics is a promising direction for future work. We release the benchmark code as supplementary material to encourage the development of more robust scientific literature novelty metrics.

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