Contextualized Sparse Representations forReal-Time Open-Domain Question Answering
Table 5: Exact match scores of Sparc in different search strategies. SFS: Sparse First Search. DFS: Dense First Search. Hybrid: Combination of SFS + DFS. Exact match scores are reported.
['[BOLD] Model', 'SQuAD-Open DenSPI', 'SQuAD-Open + Sparc', 'CuratedTREC DenSPI', 'CuratedTREC + Sparc']
Note that on CuratedTREC where the questions more resemble real user queries, DFS outperforms SFS showing the effectiveness of dense search when not knowing which documents to read.