Class: Mnist::Playground

Inherits:
Object
  • Object
show all
Defined in:
lib/mnist/playground.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Playground

Returns a new instance of Playground.



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# File 'lib/mnist/playground.rb', line 10

def initialize
  @strategies = Mnist::Strategies::Base.descendants.map(&:new)
  @results = Hash.new { |hash, key| hash[key] = [] }
  @logger = Logger.new(STDOUT)

  log_level(Logger::INFO)
end

Instance Attribute Details

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/mnist/playground.rb', line 8

def logger
  @logger
end

#strategies ⇒ Object

Returns the value of attribute strategies.



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# File 'lib/mnist/playground.rb', line 8

def strategies
  @strategies
end

Instance Method Details

#guess(dataset = Mnist::Dataset::TEST_DUMMY) ⇒ Object 



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# File 'lib/mnist/playground.rb', line 30

def guess(dataset = Mnist::Dataset::TEST_DUMMY)
  with_dataset(dataset) do |value, data|
    strategies.each do |strategy|
      guess = strategy.guess(data)
      @results[strategy] << { value: value, guess: guess, result: guess == value }
    end
  end
end

#log_level(level) ⇒ Object 



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# File 'lib/mnist/playground.rb', line 18

def log_level(level)
  @logger.level = level
end

#results ⇒ Object 



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# File 'lib/mnist/playground.rb', line 39

def results
  @results.map do |strategy, results|
    success, failure = results.partition { |result| result[:result] }
    [strategy.name, { success: success.size, failure: failure.size }]
  end.to_h
end

#train(dataset = Mnist::Dataset::TRAIN_DUMMY) ⇒ Object 



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# File 'lib/mnist/playground.rb', line 22

def train(dataset = Mnist::Dataset::TRAIN_DUMMY)
  with_dataset(dataset) do |value, data|
    strategies.each do |strategy|
      strategy.train(value, data)
    end
  end
end