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cs.IR2023
How Much Freedom Does An Effectiveness Metric Really Have?
Alistair Moffat, Joel Mackenzie
It is tempting to assume that because effectiveness metrics have free choice to assign scores to search engine result pages (SERPs) there must thus be a similar degree of freedom a…
cs.IR2023
Exploring the Representation Power of SPLADE Models
Joel Mackenzie, Shengyao Zhuang, Guido Zuccon
The SPLADE (SParse Lexical AnD Expansion) model is a highly effective approach to learned sparse retrieval, where documents are represented by term impact scores derived from large…