9 citations · 12 across the 3 of their papers we have counts for
5 papers
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…
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…
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…
Text mining and sentiment analysis of COVID-19 tweets
Qihuang Zhang, Grace Y. Yi, Li-Pang Chen +1
The human severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2), causing the COVID-19 disease, has continued to spread all over the world. It menacingly affects not only pub…
Sensitivity Analysis of Error-Contaminated Time Series Data under Autoregressive Models with Application of COVID-19 Data
Qihuang Zhang, Grace Y. Yi
Autoregressive (AR) models are useful tools in time series analysis. Inferences under such models are distorted in the presence of measurement error, which is very common in practi…