Xiaofeng Cao

Geometric Active Learning via Enclosing Ball Boundary

2018 · arXiv (Cornell University)

Active Learning (AL) requires learners to retrain the classifier with the minimum human supervisions or labeling in the unlabeled data pool when the current training set is not enough. However, general AL sampling strategies with …

Source-Free Unsupervised Domain Adaptation with Hypothesis Consolidation of Prediction Rationale

2024 · arXiv (Cornell University)

Source-Free Unsupervised Domain Adaptation (SFUDA) is a challenging task where a model needs to be adapted to a new domain without access to target domain labels or source domain data. The primary difficulty in this …

Distributional Shortest-Path Graph Kernels

2025 · IEEE Transactions on Knowledge and Data Engineering

Traditional shortest-path graph kernels generate for each graph a histogram-like feature map, whose elements represent the number of occurrences of non-isomorphic shortest paths in this graph. The histogram-like feature map does not contain the distributions …