Practical Comparable Data Collection for Low-Resource Languages via Images
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We propose a method of curating high-quality comparable training data for low-resource languages without requiring that the annotators are bilingual. Our method involves using a carefully selected set of images as a pivot between the source and target languages by getting captions for such images in both languages independently. Human evaluations on the English-Hindi comparable corpora created with our method show that 81.1% of the pairs are acceptable translations, and only 2.47% of the pairs are not a translation at all. We further establish the potential of dataset collected through our approach by experimenting on two downstream tasks – machine translation and dictionary extraction. All code and data are made available at <https://github.com/madaan/PML4DC-Comparable-Data-Collection>
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