code: def inverse_sigmoid(i):
      return FLAGS.decay_factor / (
          FLAGS.decay_factor + math.exp(i / FLAGS.decay_factor)
      )
  
file_path: texar/examples/seq2seq_exposure_bias/scheduled_sampling_main.py
imports: from io import open
  import math
  import importlib
  import tensorflow
  import texar.tf
  from rouge import Rouge
label_desc: Use image node_id 1 for calling a global function with example usage: inverse_sigmoid(i) and returns: unknown