I'm kind of disappointed in this article, Splade is a cool way to improve results of a TF/IDF index with minimally invasive changes and this obscures that more than it clarifies.<p>> Next, my SPLADE implementation in Elasticsearch is oversimplified. If you scroll back up to get_splade_embedding, we extract non-zero elements from vec_np (the SPLADE tokens) but discard their associated weights. This is a missed opportunity. The SPLADE papers use these weights for scoring matches.<p>Yes, exactly, that is the whole point of Splade.<p>Probably easier to demonstrate if you drop down a level to Lucene, I don't think you will be able to do it easily with Elastic.<p>Tangentially, I haven't looked closely at SPLATE which tries to marry Splade and ColBERT, but it's an interesting idea. <a href="https://arxiv.org/html/2404.13950v1" rel="nofollow">https://arxiv.org/html/2404.13950v1</a>