class_docstr: Module that implements plain scalar product
  as the retrieval criterion
class_docstr_tok: ["Module","that","implements","plain","scalar","product","as","the","retrieval","criterion"]
docstr: Calculate the similarity score
docstr_tok: ["Calculate","the","similarity","score"]
code: def sim(self, **kwargs):
      """Calculate the similarity score"""
      sim = self.X.dot(self.Y.T)
      return sim
  
file_path: recommenders/recommenders/models/geoimc/geoimc_predict.py
imports: import numpy
  from scipy.linalg import sqrtm
  from recommenders.utils.python_utils import binarize
label_desc: Use image node_id 2 for calling the PlainScalarProduct obj's underlying member method code with example usage: obj.sim() and returns: sim