{"slug": "biokern-biological-kernel-regularization-for-histology-to-transcriptomics", "title": "BioKERN: Biological Kernel Regularization for Histology-to-Transcriptomics Neighborhood Retrieval", "summary": "Researchers introduced BioKERN, a multimodal spatial representation-learning framework that incorporates biological structure as an explicit inductive bias for histology-to-transcriptomics neighborhood retrieval. In evaluations on Mouse Brain Visium and Human Liver GSE240429, BioKERN consistently improved biological-neighborhood retrieval over BLEEP in single- and multi-scale settings, with controlled experiments showing most improvement came from biological-kernel regularization rather than increased model capacity.", "body_md": "arXiv:2608.24823v1 Announce Type: new\nAbstract: Spatially resolved biology requires representations that preserve biological neighborhood structure rather than only exact cross-modal correspondences. Existing histology--transcriptomics objectives can emphasize instance-level matching even when non-paired spots share molecular or spatial context. We introduce BioKERN, a multimodal spatial representation-learning framework that incorporates biological structure as an explicit, learnable inductive bias. BioKERN constructs a training-time biological kernel by combining transcriptomic similarity and spatial proximity, then uses it to provide graded neighborhood supervision and regularize embedding geometry. Evaluation uses a fixed, model-independent biological neighborhood definition shared by all methods. Across Mouse Brain Visium and Human Liver GSE240429, BioKERN consistently improves biological-neighborhood retrieval over BLEEP in both single- and multi-scale settings. Controlled shared-architecture experiments show that most of the improvement arises from biological-kernel regularization rather than increased model capacity. These results support explicit biological geometry as an interpretable inductive bias for multimodal learning in spatial biology.", "url": "https://wpnews.pro/news/biokern-biological-kernel-regularization-for-histology-to-transcriptomics", "canonical_source": "https://www.machinebrief.com/news/biokern-biological-kernel-regularization-for-histology-to-tr-hjo7", "published_at": "2026-08-26 04:00:00+00:00", "updated_at": "2026-08-26 06:14:02.794846+00:00", "lang": "en", "topics": ["machine-learning", "artificial-intelligence"], "entities": ["BioKERN", "BLEEP", "Mouse Brain Visium", "Human Liver GSE240429"], "alternates": {"html": "https://wpnews.pro/news/biokern-biological-kernel-regularization-for-histology-to-transcriptomics", "markdown": "https://wpnews.pro/news/biokern-biological-kernel-regularization-for-histology-to-transcriptomics.md", "text": "https://wpnews.pro/news/biokern-biological-kernel-regularization-for-histology-to-transcriptomics.txt", "jsonld": "https://wpnews.pro/news/biokern-biological-kernel-regularization-for-histology-to-transcriptomics.jsonld"}}