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Nowadays, hundreds of thousands of farmers in China seek online in agricultural Q&A communities, such as Farm-Doctor, for agricultural advice. As in many other Q&A communities, the key design issue is to find experts to provide timely and suitable answers. State-of-the-art approaches often rely on extracting topics from the question texts, however, the major challenge here is that questions in agricultural Q&A communities often contain limited textual information. To solve this problem, in thisdoi:10.1109/access.2020.2984342 fatcat:z3h3nkswyzeudid6r77n23nlx4