arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.04844cs.LGcs.DBstat.ML
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通过分布的深度嵌入从数据中识别变量

Recognizing Variables from their Data via Deep Embeddings of Distributions

Amazon Web Services(亚马逊云科技)

Jonas Mueller, Alex Smola

摘要:

自动分析和元学习的一个关键障碍是无法识别不同数据集何时包含相同变量的测量值。由于所提供的属性标签在实践中通常是无信息的,因此可以通过利用数据值本身而不是仅仅依赖于它们任意选择的变量名称来更稳健地解决该任务。在这里,我们提出了一种计算效率高的方法来识别给定的一组数据值和以前遇到的数据集的大型存储库之间的高置信度变量匹配。我们的方法比基于分布相似性的技术具有许多优势,因为我们利用了数据集的学习向量嵌入,这些数据集自适应地考虑了实践中遇到的自然形式的数据变化。基于深度集的神经架构,我们的嵌入可以针对数字和字符串数据进行计算。在数据集搜索和模式匹配任务中,我们的方法优于标准的统计技术,我们发现学习的嵌入很好地推广到新的数据源。

英文摘要:

A key obstacle in automated analytics and meta-learning is the inability to recognize when different datasets contain measurements of the same variable. Because provided attribute labels are often uninformative in practice, this task may be more robustly addressed by leveraging the data values themselves rather than just relying on their arbitrarily selected variable names. Here, we present a computationally efficient method to identify high-confidence variable matches between a given set of data values and a large repository of previously encountered datasets. Our approach enjoys numerous advantages over distributional similarity based techniques because we leverage learned vector embeddings of datasets which adaptively account for natural forms of data variation encountered in practice. Based on the neural architecture of deep sets, our embeddings can be computed for both numeric and string data. In dataset search and schema matching tasks, our methods outperform standard statistical techniques and we find that the learned embeddings generalize well to new data sources.

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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