def __init__(self, w_spams_func, u_spams_func, **other_params):
super(BatchBivariateLearner, self).__init__()
self.allParams = other_params
self.initDefaults()
self.elementsSeen = 0
self.X = None
self.w = None
self.u = None
self.w_bias = None
self.u_bias = None
self.bias = None
self.change_eval = BiMeanSquareEval(self)
self.part_eval = RootMeanEval()
self.w_func = w_spams_func
self.u_func = u_spams_func
