Source code for xpmir.rankers.standard

from experimaestro import field, Param, Config



[docs]
class Model(Config):
    """Base class for standard IR models"""

    pass




[docs]
class BM25(Model):
    """BM-25 model definition"""

    k1: Param[float] = field(default=0.9, ignore_default=True)
    b: Param[float] = field(default=0.4, ignore_default=True)




[docs]
class QLDirichlet(Model):
    """Query likelihood (Dirichlet smoothing) model definition"""

    mu: Param[float] = field(default=1000, ignore_default=True)