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stat.ME2026
Model-Based Co-Clustering for Censored Data
Kejun Fang, Mincen Liu, Qihuang Zhang
Co-clustering jointly partitions the rows and columns of a data matrix. Standard co-clustering methods for continuous data typically assume that entries are observed exactly. Matri…
cs.AI2026
A Tropical Geometry View of Forgetting: A Per-Unit Projector for Knowledge-Preserving Fine-Tuning
Yuyang Zhang, Xiaoyin Chen, Chunlin Ren +1
Fine-tuning a language model on new text degrades what it already does. Replay-free projectors such as Adam-NSCL and GPM forbid one shared subspace of a layer's inputs in every row…
cs.LG2026
CLEARMIND: Closed-Form Laplacian Embeddings of Arakelov-Green Resistance for Morphological Intrinsic Neuronal Distances
Yuyang Zhang, Weihan Xu, Xuehai Zhou +2
Tropical geometry turns a metric graph into a flat torus, its tropical Jacobian, and measures distances between the images of its points by a closest vector problem on the period l…