bustikiller/wedding-planner
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Rename perturbation -> optimization to reflect the nature of swap and shift operations

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This commit is contained in:
Manuel Bustillo 2025-07-22 15:39:30 +02:00
parent 4dfd428ce4
commit e1a5e4f73e
3 changed files with 12 additions and 12 deletions
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4
app/jobs/table_simulator_job.rb
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@ -12,8 +12,8 @@ class TableSimulatorJob < ApplicationJob
ActsAsTenant.with_tenant(Wedding.find(wedding_id)) do ActsAsTenant.with_tenant(Wedding.find(wedding_id)) do
engine = VNS::Engine.new engine = VNS::Engine.new
engine.add_perturbation(Tables::Swap) engine.add_optimization(Tables::Swap)
engine.add_perturbation(Tables::Shift) engine.add_optimization(Tables::Shift)
initial_solution = Tables::Distribution.new(min_per_table: MIN_PER_TABLE, max_per_table: MAX_PER_TABLE) initial_solution = Tables::Distribution.new(min_per_table: MIN_PER_TABLE, max_per_table: MAX_PER_TABLE)
initial_solution.random_distribution(Guest.potential.shuffle) initial_solution.random_distribution(Guest.potential.shuffle)

16
app/services/vns/engine.rb
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@ -15,23 +15,23 @@ module VNS
@target_function = function @target_function = function
end end
def add_perturbation(klass) def add_optimization(klass)
@perturbations ||= Set.new @optimizations ||= Set.new
@perturbations << klass @optimizations << klass
end end
attr_writer :initial_solution attr_writer :initial_solution
def run def run
raise 'No target function defined' unless @target_function raise 'No target function defined' unless @target_function
raise 'No perturbations defined' unless @perturbations raise 'No optimizations defined' unless @optimizations
raise 'No initial solution defined' unless @initial_solution raise 'No initial solution defined' unless @initial_solution
@best_solution = @initial_solution @best_solution = @initial_solution
@best_score = @target_function.call(@best_solution) @best_score = @target_function.call(@best_solution)
self.class.sequence(@perturbations).each do |perturbation| self.class.sequence(@optimizations).each do |optimization|
optimize(perturbation) optimize(optimization)
end end
@best_solution @best_solution
@ -39,11 +39,11 @@ module VNS
private private
def optimize(perturbation_klass) def optimize(optimization_klass)
loop do loop do
optimized = false optimized = false
perturbation_klass.new(@best_solution).each do |alternative_solution| optimization_klass.new(@best_solution).each do |alternative_solution|
score = @target_function.call(alternative_solution) score = @target_function.call(alternative_solution)
next if score >= @best_score next if score >= @best_score

4
lib/tasks/vns.rake
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@ -8,8 +8,8 @@ namespace :vns do
engine = VNS::Engine.new engine = VNS::Engine.new
engine.add_perturbation(Tables::Swap) engine.add_optimization(Tables::Swap)
engine.add_perturbation(Tables::Shift) engine.add_optimization(Tables::Shift)
hierarchy = AffinityGroupsHierarchy.new hierarchy = AffinityGroupsHierarchy.new
initial_solution = Tables::Distribution.new(min_per_table: 8, max_per_table: 10, hierarchy:) initial_solution = Tables::Distribution.new(min_per_table: 8, max_per_table: 10, hierarchy:)