CAAL: Contextual Bandits based Online Hand-Craft Active Learning Strategy Selection
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Computer Science > Machine Learning
Title:CAAL: Contextual Bandits based Online Hand-Craft Active Learning Strategy Selection
Abstract:The challenge with active learning algorithms is the uncertainty of the statistical distribution of unlabeled data, making it difficult to choose the best hand-crafted strategy. To address this, we introduced Contextual Adaptive Active Learning (CAAL). In CAAL, each "arm" represents a hand-crafted strategy. Unlike existing frameworks that select strategies based only on feedback from labeled data, we dynamically choose strategies for labeling batches of data using reward prediction with external context information. This general framework allows for customization with domain knowledge to design more effective rewards and context candidates. In addition, we experimentally show that CAAL outperforms the existing baseline adaptive strategy on public datasets using our reward and context design. Our results are consistent regardless of batch size in each iteration.
| Comments: | 8 pages, 5 figures, Accepted to the NYRL 2025 Workshop |
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2606.07910 [cs.LG] |
| (or arXiv:2606.07910v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2606.07910
arXiv-issued DOI via DataCite (pending registration)
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