Module: CollaborativeFiltering::Sample

Defined in:
lib/collaborative_filtering/sample.rb

Constant Summary collapse

SAMPLE = 
{
  'Yamada' => {
    'Curry'        => 2.5,
    'Ramen'        => 3.5,
    'Fried rice'   => 3.0,
    'Sushi'        => 3.5,
    'Beef bowl'    => 2.5,
    'Wheat noodle' => 3.0
  },
  'Tanaka' => {
    'Curry'        => 3.0,
    'Ramen'        => 3.5,
    'Fried rice'   => 1.5,
    'Sushi'        => 5.0,
    'Wheat noodle' => 3.0,
    'Beef bowl'    => 3.5
  },
  'Sato' => {
    'Curry'        => 2.5,
    'Ramen'        => 3.0,
    'Sushi'        => 3.5,
    'Wheat noodle' => 4.0
  },
  'Nakamura' => {
    'Ramen'        => 3.5,
    'Fried rice'   => 3.0,
    'Wheat noodle' => 4.5,
    'Sushi'        => 4.0,
    'Beef bowl'    => 2.5
  },
  'Kawamura' => {
    'Curry'        => 3.0,
    'Ramen'        => 4.0,
    'Fried rice'   => 2.0,
    'Sushi'        => 3.0,
    'Wheat noodle' => 3.0,
    'Beef bowl'    => 2.0
  },
  'Suzuki' => {
    'Curry'        => 3.0,
    'Ramen'        => 4.0,
    'Wheat noodle' => 3.0,
    'Sushi'        => 5.0,
    'Beef bowl'    => 3.5
  },
  'Shimobayashi' => {
    'Ramen'        => 4.5,
    'Beef bowl'    => 1.0,
    'Sushi'        => 4.0
  }
}

Class Method Summary collapse

Class Method Details

.all_sample ⇒ Object 



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# File 'lib/collaborative_filtering/sample.rb', line 59

def all_sample
  puts %(
    //////////////////////////////////////////////////////////////
    // this source exists lib/collaborative_filtering/sample.rb //
    //////////////////////////////////////////////////////////////
  )
  show_sample_data
  sim_distance
  sim_pearson
  top_matches
  get_recommendations
  transform_prefs
end

.get_recommendations ⇒ Object 



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# File 'lib/collaborative_filtering/sample.rb', line 88

def get_recommendations
  puts "write like this -> CollaborativeFiltering.get_recommendations(SAMPLE, 'Shimobayashi')"
  p CollaborativeFiltering.get_recommendations(SAMPLE, 'Shimobayashi')
end

.show_sample_data ⇒ Object 



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# File 'lib/collaborative_filtering/sample.rb', line 55

def show_sample_data
  p SAMPLE
end

.sim_distance ⇒ Object 



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# File 'lib/collaborative_filtering/sample.rb', line 73

def sim_distance
  puts "write like this -> CollaborativeFiltering.sim_distance(SAMPLE, 'Yamada', 'Tanaka')"
  p CollaborativeFiltering.sim_distance(SAMPLE, 'Yamada', 'Tanaka')
end

.sim_pearson ⇒ Object 



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# File 'lib/collaborative_filtering/sample.rb', line 78

def sim_pearson
  puts "write like this -> CollaborativeFiltering.sim_pearson(SAMPLE, 'Yamada', 'Tanaka')"
  p CollaborativeFiltering.sim_pearson(SAMPLE, 'Yamada', 'Tanaka')
end

.top_matches ⇒ Object 



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# File 'lib/collaborative_filtering/sample.rb', line 83

def top_matches
  puts "write like this -> CollaborativeFiltering.top_matches(SAMPLE, 'Shimobayashi')"
  p CollaborativeFiltering.top_matches(SAMPLE, 'Shimobayashi')
end

.transform_prefs ⇒ Object 



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# File 'lib/collaborative_filtering/sample.rb', line 93

def transform_prefs
  puts "write like this -> menu = CollaborativeFiltering.transform_prefs(SAMPLE)"
  puts "write like this -> CollaborativeFiltering.top_matches(menu, 'Sushi')"
  menu = CollaborativeFiltering.transform_prefs(SAMPLE)
  p CollaborativeFiltering.top_matches(menu, 'Sushi')
end