Feature request: Add LEMUR: Learned Multi-Vector Retrieval

[davidmezzetti]

This is another approximate maxsim strategy similar to MUVERA.

Paper: https://arxiv.org/abs/2601.21853v1
Code: https://github.com/ejaasaari/lemur

[Vishal35198]

I have read the implementation of the Muver , Base Pooling the mean , cls based and Would like to make significant contributions to implement Please assign this task to me I would like to implement it . @davidmezzetti . Currently reading the codebase of lemur you shared. It would be a great opportunity for me to be a contributor to one of my favorite library.

[davidmezzetti]

Hi @Vishal35198

Appreciate the offer. Just assigned this issue to you. Thank you!

[Vishal35198]

Hello @davidmezzetti for this implementation I would like to have a discussion with you as there are lots components , including the Two Layer MLP , and the main LUMER class . Better have a discussion on discord , or any other platform .

[davidmezzetti]

We have a txtai slack channel if you prefer: https://txtai.slack.com/join/shared_invite/zt-37c1zfijp-Y57wMty6YOx_hyIHEQvQJA#/shared-invite/email