nickguletskii commented on issue #14638: [MXNET-1382] Add the index_array operator URL: https://github.com/apache/incubator-mxnet/pull/14638#issuecomment-481450566 @fhieber In a way, yes. The behaviour you have described in #14574 can be emulated by applying `reshape`, `index_array`, `broadcast_add`, and finally, `reshape_list`. I was thinking of implementing `arange_like` instead of `index_array`, but I don't find the `arange` operator itself versatile enough and I didn't want to make `arange_like` too different from `arange`. There's no particular reason why I've placed `index_array` into the contrib namespace other than the fact that it's a new operator. I'd be happy to update this pull request and move `index_array` out of the contrib namespace if the community deems it desirable.
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