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arXiv 1409.1200cs.LG
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域转移结构化输出学习

Domain Transfer Structured Output Learning

King Abdullah University of Science and Technology (KAUST)(阿卜杜拉国王科技大学)

Jim Jing-Yan Wang

摘要:

本文提出了域迁移结构化输出学习问题及其第一种解决方案,该问题定义在两个共享相同输入输出空间的不同数据域上,即源域和目标域。输出是结构化的,并且对于源域的数据样本,对应的输出是可用的,而对于目标域的大多数数据样本,对应的输出是缺失的。这两个领域的输入分布是显着不同的。问题是学习目标域的预测器,以预测来自输入的结构化输出。由于目标域样本的输出有限,很难直接从目标域学习预测器,因此需要利用源域的输出信息。我们建议通过使用源域数据训练的辅助预测器适应目标域来学习目标域预测器。自适应是通过在辅助预测器的基础上增加增量函数来实现的。开发了一种算法来学习delta函数的参数,以使与预测输出相关联的损失函数相对于具有目标域的可用输出的数据样本的真实输出最小化。

英文摘要:

In this paper, we propose the problem of domain transfer structured output learn- ing and the first solution to solve it. The problem is defined on two different data domains sharing the same input and output spaces, named as source domain and target domain. The outputs are structured, and for the data samples of the source domain, the corresponding outputs are available, while for most data samples of the target domain, the corresponding outputs are missing. The input distributions of the two domains are significantly different. The problem is to learn a predictor for the target domain to predict the structured outputs from the input. Due to the limited number of outputs available for the samples form the target domain, it is difficult to directly learn the predictor from the target domain, thus it is necessary to use the output information available in source domain. We propose to learn the target domain predictor by adapting a auxiliary predictor trained by using source domain data to the target domain. The adaptation is implemented by adding a delta function on the basis of the auxiliary predictor. An algorithm is developed to learn the parameter of the delta function to minimize loss functions associat- ed with the predicted outputs against the true outputs of the data samples with available outputs of the target domain.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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