anjishnu edited a comment on issue #17298: [MXNET-1438] Adding SDML loss function URL: https://github.com/apache/incubator-mxnet/pull/17298#issuecomment-574458020 It looks a little tricky to port this into the 'fit' and 'score' paradigm since this is a retrieval specific loss function which uses the other elements in a batch as implicit negative samples - and I'm not sure how cleanly it fits into the Module API for this kind of test. The loss only guarantees that associated pairs will be closer in the chosen metric space after learning as compared to the non-associated pairs. Maybe I can write something equivalent using the gluon API, to train a small network and ensure it learns the right associations. I'll come up with a proposal shortly.
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