[2603.01092] The Alien Space of Science: Sampling Coherent but Cognitively Unavailable Research Directions (https://arxiv.org/static/browse/0.3.4/images/icons/apple-touch-icon.png) (../static/browse/0.3.4/images/icons/favicon-32x32.png) (../static/browse/0.3.4/images/icons/favicon-16x16.png) (../static/browse/0.3.4/images/icons/site.webmanifest) (https://arxiv.org/static/browse/0.3.4/images/icons/safari-pinned-tab.svg) (../static/browse/0.3.4/css/arXiv.css@v=20260318.css)  (../static/browse/0.3.4/css/arXiv-print.css@v=20260924.css)  (../static/browse/0.3.4/css/browse_search.css)  (../../static.arxiv.org/static/design-system/latest/design-system-components.css) (../../static.arxiv.org/static/design-system/latest/fonts.css) (2603.01092.html)                  (../static/browse/0.3.4/css/tooltip.css)  (../../static.arxiv.org/js/bibex-dev/bibex.css@20200709.css)                  (2603.01092.html#content) Skip to main content  (https://arxiv.org/IgnoreMe)  (https://arxiv.org/) (archive)  (https://arxiv.org/search)    Search       (https://arxiv.org/submit) Submit (https://info.arxiv.org/about/donate.html) Donate  (https://arxiv.org/login) Log in   Search arXiv (Search papers by title, author, abstract, or ID...) (all) (header)  Press Enter to search · (https://arxiv.org/search/advanced) Advanced search    Computer Science > Artificial Intelligence  arXiv:2603.01092 (cs)  (../static/base/1.0.1/css/abs.css) [Submitted on 1 Mar 2026 ((https://arxiv.org/abs/2603.01092v1) v1 ), last revised 21 Oct 2026 (this version, v3)] Title: The Alien Space of Science: Sampling Coherent but Cognitively Unavailable Research Directions Authors: (https://arxiv.org/search/cs?searchtype=author&query=Artiles,+A+H) Alejandro H. Artiles , (https://arxiv.org/search/cs?searchtype=author&query=Weiss,+M) Martin Weiss , (https://arxiv.org/search/cs?searchtype=author&query=Brinkmann,+L) Levin Brinkmann , (https://arxiv.org/search/cs?searchtype=author&query=Rahwan,+I) Iyad Rahwan , (https://arxiv.org/search/cs?searchtype=author&query=Sch%C3%B6lkopf,+B) Bernhard Schölkopf , (https://arxiv.org/search/cs?searchtype=author&query=Pal,+C) Christopher Pal , (https://arxiv.org/search/cs?searchtype=author&query=Larochelle,+H) Hugo Larochelle , (https://arxiv.org/search/cs?searchtype=author&query=Goyal,+A) Anirudh Goyal , (https://arxiv.org/search/cs?searchtype=author&query=Rahaman,+N) Nasim Rahaman  View a PDF of the paper titled The Alien Space of Science: Sampling Coherent but Cognitively Unavailable Research Directions, by Alejandro H. Artiles and 8 other authors (https://arxiv.org/pdf/2603.01092) View PDF (https://arxiv.org/html/2603.01092v3) HTML (experimental) Abstract: Scientific discovery is constrained not only by what is true, but by what is cognitively available to researchers. Many directions are coherent in light of the literature yet unlikely to be proposed because no existing community combines the relevant concepts, methods, and intuitions. Modern language models inherit this bias, recombining high-density regions of the literature when prompted for novel ideas. We target the complementary region, the alien space of science: directions that are scientifically plausible but unlikely under the distribution of existing researchers. Our method decomposes papers into conceptual units and clusters them into a vocabulary of idea atoms. A coherence model scores whether atom combinations form viable research directions, while an availability model scores whether any existing author community is positioned to produce them. We rank combinations to maximize coherence while minimizing availability. On 16,068 peer-reviewed LLM papers from NeurIPS, ICLR, ICML, and major NLP venues, the sampler produces more diverse research portfolios than frontier LLM baselines, including batch-prompted variants that see their entire output, while matching or exceeding their per-idea quality under blind human, LLM, and downstream experimental evaluation. In temporal validation, all components use only pre-2025 data. Selecting less than 1% of the candidate space recovers 2025 combinations at 35.9 times chance; weighting unavailability increases recovery of strictly novel combinations to 3.24 times chance. By separating scientific plausibility from community availability, our framework points toward AI ideation that complements rather than merely accelerates human science, expanding exploration into coherent directions the community may overlook.  Comments: Advances in Neural Information Processing Systems, NeurIPS 2026 Main Track. 11 main pages, 44 appendix pages, 29 figures  Subjects: Artificial Intelligence (cs.AI) ; Machine Learning (cs.LG)  Cite as: (2603.01092.html) arXiv:2603.01092 [cs.AI]    (or (https://arxiv.org/abs/2603.01092v3) arXiv:2603.01092v3 [cs.AI] for this version)    (https://doi.org/10.48550/arXiv.2603.01092) https://doi.org/10.48550/arXiv.2603.01092   Focus to learn more   arXiv-issued DOI via DataCite        Submission history From: Alejandro Hernandez Artiles [(https://arxiv.org/show-email/593457d1/2603.01092) view email ]  (https://arxiv.org/abs/2603.01092v1) [v1]  Sun, 1 Mar 2026 13:05:19 UTC (569 KB) (https://arxiv.org/abs/2603.01092v2) [v2]  Fri, 15 May 2026 23:12:34 UTC (2,833 KB) [v3] Wed, 21 Oct 2026 08:59:34 UTC (3,197 KB)    Full-text links: Access Paper: View a PDF of the paper titled The Alien Space of Science: Sampling Coherent but Cognitively Unavailable Research Directions, by Alejandro H. 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