no code implementations • 12 May 2022 • Hang Li, Ahmed Mourad, Bevan Koopman, Guido Zuccon
Pseudo-Relevance Feedback (PRF) assumes that the top results retrieved by a first-stage ranker are relevant to the original query and uses them to improve the query representation for a second round of retrieval.
1 code implementation • 6 Apr 2022 • Shuai Wang, Harrisen Scells, Justin Clark, Bevan Koopman, Guido Zuccon
However, we show pseudo seed studies are not representative of real seed studies used by information specialists.
1 code implementation • 24 Jan 2022 • Aaron Nicolson, Jason Dowling, Bevan Koopman
Our experimental investigation demonstrates that the Convolutional vision Transformer (CvT) ImageNet-21K and the Distilled Generative Pre-trained Transformer 2 (DistilGPT2) checkpoints are best for warm-starting the encoder and decoder, respectively.
no code implementations • 1 Jan 2022 • Duy-Hoa Ngo, Madonna Kemp, Donna Truran, Bevan Koopman, Alejandro Metke-Jimenez
Finding concepts in large clinical ontologies can be challenging when queries use different vocabularies.
1 code implementation • 25 Aug 2021 • Hang Li, Ahmed Mourad, Shengyao Zhuang, Bevan Koopman, Guido Zuccon
Text-based PRF results show that the use of PRF had a mixed effect on deep rerankers across different datasets.