Meta-Feature | Description |
---|---|
FusionIR | fusion - combining results from 2 or more systems regardless of fusion operator used |
OkapiIR | passage retrieval using an Okapi BM25 model |
TfIdfIR | passage retrieval using a vector space model with any variant of TF-IDF |
LmIR | passage retrieval using any language model |
DfrIR | passage retrieval using a vector space model with any variant of divergence from randomness (DFR) |
... | ... |