Collaboration diagram for NnetStats::StatsElement:

Public Member Functions
	StatsElement (BaseFloat deriv_begin, BaseFloat deriv_end)

void	AddStats (BaseFloat avg_deriv, BaseFloat avg_value)

void	PrintStats (std::ostream &os)

Public Attributes
BaseFloat	deriv_begin

BaseFloat	deriv_end

BaseFloat	deriv_sum

BaseFloat	deriv_sumsq

BaseFloat	abs_value_sum

BaseFloat	abs_value_sumsq

int32	count

Detailed Description

Definition at line 59 of file nnet-stats.h.

Constructor & Destructor Documentation

◆ StatsElement()

StatsElement	(	BaseFloat	deriv_begin,
		BaseFloat	deriv_end
	)

inline

Definition at line 69 of file nnet-stats.h.

Referenced by NnetStats::BucketFor().

                                      :
         deriv_begin(deriv_begin), deriv_end(deriv_end), deriv_sum(0.0),
         deriv_sumsq(0.0), abs_value_sum(0.0), abs_value_sumsq(0.0), count(0) { }

Member Function Documentation

◆ AddStats()

void AddStats	(	BaseFloat	avg_deriv,
		BaseFloat	avg_value
	)

Definition at line 39 of file nnet-stats.cc.

References NnetStats::StatsElement::abs_value_sum, NnetStats::StatsElement::abs_value_sumsq, NnetStats::StatsElement::count, NnetStats::StatsElement::deriv_sum, and NnetStats::StatsElement::deriv_sumsq.

Referenced by NnetStats::AddStats(), and NnetStats::AddStatsFromNnet().

                                                                              {
   count++;
   deriv_sum += avg_deriv;
   deriv_sumsq += avg_deriv * avg_deriv;
   abs_value_sum += std::abs(avg_value);
   abs_value_sumsq += avg_value * avg_value;
 }

◆ PrintStats()

void PrintStats ( std::ostream & os )

Definition at line 25 of file nnet-stats.cc.

References NnetStats::StatsElement::abs_value_sum, NnetStats::StatsElement::abs_value_sumsq, NnetStats::StatsElement::count, NnetStats::StatsElement::deriv_begin, NnetStats::StatsElement::deriv_end, NnetStats::StatsElement::deriv_sum, and NnetStats::StatsElement::deriv_sumsq.

Referenced by NnetStats::PrintStats().

                                                      {
   BaseFloat c = (count == 0 ? 1 : count), // prevent division by zero.
       deriv_mean = deriv_sum/c,
       deriv_stddev = std::sqrt(deriv_sumsq/c - deriv_mean*deriv_mean),
       abs_value_mean = abs_value_sum/c,
       abs_value_stddev = std::sqrt(abs_value_sumsq/c -
                                    abs_value_mean*abs_value_mean);
 
   os << '[' << deriv_begin << ':' << deriv_end << "] count=" << count
      << ", deriv mean,stddev=" << deriv_mean << ',' << deriv_stddev
      << ", abs-avg-value mean,stddev=" << abs_value_mean << ','
      << abs_value_stddev;
 }