Reviews: AttentionXML: Label Tree-based Attention-Aware Deep Model for High-Performance Extreme Multi-Label Text Classification

Originality: This is a very interesting algorithmic contribution. The introduced method gets state-of-the-art results under reasonable computation resources. I was reviewing a former version of this paper for some other conference and have to admit that the new version is significantly improved, mainly because the authors have succeeded to decrease the computational costs of the attention-based deep network by using the probabilistic label trees. Quality: The method is sound and the empirical analysis is of high quality. The paper does not have any theoretical contribution, but it is unnecessary for this kind of contribution.