Hybrid First-stage Retrieval Models for Biomedical Literature.

@inproceedings{ma-2020-hybrid, author = {Ji Ma and Ivan Korotkov and Keith B. Hall and Ryan T. McDonald}, editor = {Linda Cappellato and Carsten Eickhoff and Nicola Ferro and Aur\'{e}lie N\'{e}v\'{e}ol}, title = {{Hybrid First-stage Retrieval Models for Biomedical Literature}}, booktitle = {{Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020}}, series = {CEUR Workshop Proceedings}, volume = {2696}, publisher = {CEUR-WS.org}, year = {2020}, url = {https://ceur-ws.org/Vol-2696/paper_92.pdf} }