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• W3203485385 endingPage "3070" @default.
• W3203485385 startingPage "3058" @default.
• W3203485385 abstract "Object detection requires plentiful data annotated with bounding boxes for model training. However, in many applications, it is difficult or even impossible to acquire a large set of labeled examples for the target task due to the privacy concern or lack of reliable annotators. On the other hand, due to the high-quality image search engines, such as Flickr and Google, it is relatively easy to obtain resource-rich unlabeled datasets, whose categories are a superset of those of target data. In this article, to improve the target model with cost-effective supervision from source data, we propose a partial transfer learning approach QBox to actively query labels for bounding boxes of source images. Specifically, we design two criteria, i.e., informativeness and transferability, to measure the potential utility of a bounding box for improving the target model. Based on these criteria, QBox actively queries the labels of the most useful boxes from the source domain and, thus, requires fewer training examples to save the labeling cost. Furthermore, the proposed query strategy allows annotators to simply labeling a specific region, instead of the whole image, and, thus, significantly reduces the labeling difficulty. Extensive experiments are performed on various partial transfer benchmarks and a real COVID-19 detection task. The results validate that QBox improves the detection accuracy with lower labeling cost compared to state-of-the-art query strategies for object detection." @default.
• W3203485385 created "2021-10-11" @default.
• W3203485385 creator A5066964304 @default.
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• W3203485385 date "2023-06-01" @default.
• W3203485385 modified "2023-10-12" @default.
• W3203485385 title "QBox: Partial Transfer Learning With Active Querying for Object Detection" @default.
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• W3203485385 doi "https://doi.org/10.1109/tnnls.2021.3111621" @default.
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• W3203485385 hasPublicationYear "2023" @default.
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