# MS Marco Ranking with ColBERT on Vespa.ai 

This is work in progress. 

Model is based on [ColBERT: Efficient and Effective Passage Search via Contextualized Late Interaction over BERT](https://arxiv.org/abs/2004.12832). 
This BERT model is based on BERT Medium uncased [google/bert_uncased_L-8_H-512_A-8](https://huggingface.co/google/bert_uncased_L-8_H-512_A-8)
To use this model with vespa.ai for MS Marco Passage Ranking, see 
[MS Marco Ranking using Vespa.ai sample app](https://github.com/vespa-engine/sample-apps/tree/master/msmarco-ranking)