BS Namespace Reference

Functions
uint32_t	weight_gen (std::shared_ptr< rand_state > &state)

Function Documentation

weight_gen()

uint32_t BS::weight_gen ( std::shared_ptr< rand_state > &  state )

inline

Definition at line 17 of file bs.h.

Referenced by predict_or_learn(), CB_EXPLORE::predict_or_learn_bag(), and VW::cb_explore_adf::bag::cb_explore_adf_bag::predict_or_learn_impl().

{
  float temp = state->get_and_update_random();
  if (temp <= 0.3678794411714423215955)
    return 0;
  if (temp <= 0.735758882342884643191)
    return 1;
  if (temp <= 0.919698602928605803989)
    return 2;
  if (temp <= 0.9810118431238461909214)
    return 3;
  if (temp <= 0.9963401531726562876545)
    return 4;
  if (temp <= 0.9994058151824183070012)
    return 5;
  if (temp <= 0.9999167588507119768923)
    return 6;
  if (temp <= 0.9999897508033253583053)
    return 7;
  if (temp <= 0.9999988747974020309819)
    return 8;
  if (temp <= 0.9999998885745216612793)
    return 9;
  if (temp <= 0.9999999899522336243091)
    return 10;
  if (temp <= 0.9999999991683892573118)
    return 11;
  if (temp <= 0.9999999999364022267287)
    return 12;
  if (temp <= 0.999999999995480147453)
    return 13;
  if (temp <= 0.9999999999996999989333)
    return 14;
  if (temp <= 0.9999999999999813223654)
    return 15;
  if (temp <= 0.9999999999999989050799)
    return 16;
  if (temp <= 0.9999999999999999393572)
    return 17;
  if (temp <= 0.999999999999999996817)
    return 18;
  if (temp <= 0.9999999999999999998412)
    return 19;
  return 20;
}