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fix: 🚑 first all employed bees then all onlooker bees

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This commit is contained in:
Ahmet Kaan GÜMÜŞ 2024-11-20 00:20:40 +03:00
parent d694cea4a5
commit b0fb8f40d8
5 changed files with 117 additions and 95 deletions
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14
artificial_bee_colony/abc_config.toml
View file

@ -1,8 +1,8 @@
[start_parameters]
decision_variable_count = 3
food_source_number = 100
food_source_try_limit = 100
upper_bound = 5
lower_bound = -5
iteration = 1000
run = 5
decision_variable_count = 50
food_source_number = 20
food_source_try_limit = 1000
upper_bound = 100
lower_bound = -100
iteration = 100
run = 30

104
artificial_bee_colony/src/bee.rs
View file

@ -2,18 +2,18 @@ use rand::Rng;
use crate::food::FoodSource;
pub enum Bee {}
pub struct Bee {}
impl Bee {
pub fn employed_bee(
food_sources: &mut [FoodSource],
index: usize,
food_source_index: usize,
decision_variable_count: usize,
upper_bound: f64,
lower_bound: f64,
) {
send_bee(
Self::send_bee(
food_sources,
index,
food_source_index,
decision_variable_count,
upper_bound,
lower_bound,
@ -22,33 +22,35 @@ impl Bee {
pub fn onlooker_bee(
food_sources: &mut [FoodSource],
index: usize,
food_source_index: usize,
total_fitness: f64,
decision_variable_count: usize,
upper_bound: f64,
lower_bound: f64,
) {
let fitness_for_index = food_sources[index].fitness_calculation;
) -> bool {
let fitness_for_index = food_sources[food_source_index].fitness_calculation;
if fitness_for_index / total_fitness <= rand::thread_rng().gen_range(0.0..=1.0) {
send_bee(
Self::send_bee(
food_sources,
index,
food_source_index,
decision_variable_count,
upper_bound,
lower_bound,
);
return true;
}
false
}
pub fn scout_bee(
food_sources: &mut [FoodSource],
most_tried_index: usize,
most_tried_food_source_index: usize,
limit: u128,
lower_bound: f64,
upper_bound: f64,
decision_variable_count: usize,
) {
if food_sources[most_tried_index].try_counter > limit {
if food_sources[most_tried_food_source_index].try_counter > limit {
let mut coordinates_for_new = vec![];
for _ in 0..decision_variable_count {
let random = lower_bound
@ -56,41 +58,51 @@ impl Bee {
coordinates_for_new.push(random);
}
let new_food_source = FoodSource::new(coordinates_for_new);
food_sources[most_tried_index] = new_food_source;
food_sources[most_tried_food_source_index] = new_food_source;
}
}
fn send_bee(
food_sources: &mut [FoodSource],
food_source_index: usize,
decision_variable_count: usize,
upper_bound: f64,
lower_bound: f64,
) {
let mut different_food_source_index = rand::thread_rng().gen_range(0..food_sources.len());
while different_food_source_index == food_source_index {
different_food_source_index = rand::thread_rng().gen_range(0..food_sources.len());
}
let decision_variable_index = rand::thread_rng().gen_range(0..decision_variable_count);
let randomness = rand::thread_rng().gen_range(-1.0..=1.0);
let mut candidate_decision_variable = food_sources[food_source_index].coordinates
[decision_variable_index]
+ randomness
* (food_sources[food_source_index].coordinates[decision_variable_index]
- food_sources[different_food_source_index].coordinates
[decision_variable_index]);
if candidate_decision_variable > upper_bound {
candidate_decision_variable = upper_bound;
}
if candidate_decision_variable < lower_bound {
candidate_decision_variable = lower_bound;
}
let candidate_food_source = {
let mut original_decision_variables =
food_sources[food_source_index].coordinates.clone();
original_decision_variables[decision_variable_index] = candidate_decision_variable;
let candidate_decision_variables = original_decision_variables;
FoodSource::new(candidate_decision_variables)
};
food_sources[food_source_index].try_counter += 1;
if candidate_food_source.fitness_calculation
> food_sources[food_source_index].fitness_calculation
{
food_sources[food_source_index] = candidate_food_source;
food_sources[food_source_index].try_counter = 0;
}
}
}
fn send_bee(
food_sources: &mut [FoodSource],
index: usize,
decision_variable_count: usize,
upper_bound: f64,
lower_bound: f64,
) {
let mut different_food_source_index = rand::thread_rng().gen_range(0..food_sources.len());
while different_food_source_index == index {
different_food_source_index = rand::thread_rng().gen_range(0..food_sources.len());
}
let selected_coordinate_index = rand::thread_rng().gen_range(0..decision_variable_count);
let randomness = rand::thread_rng().gen_range(-1.0..=1.0);
let mut candidate_one_index = food_sources[index].coordinates[selected_coordinate_index]
+ randomness
* (food_sources[index].coordinates[selected_coordinate_index]
- food_sources[different_food_source_index].coordinates[selected_coordinate_index]);
if candidate_one_index > upper_bound {
candidate_one_index = upper_bound;
}
if candidate_one_index < lower_bound {
candidate_one_index = lower_bound;
}
let mut candidate_coordinates = food_sources[index].coordinates.clone();
candidate_coordinates[selected_coordinate_index] = candidate_one_index;
let candidate = FoodSource::new(candidate_coordinates);
food_sources[index].try_counter += 1;
if candidate.fitness_calculation > food_sources[index].fitness_calculation {
food_sources[index] = candidate;
food_sources[index].try_counter = 0;
}
}

13
artificial_bee_colony/src/food.rs
View file

@ -40,7 +40,7 @@ impl FoodSource {
}
pub fn create_food_sources(
food_source_number: u128,
food_source_number: usize,
decision_variable_count: usize,
upper_bound: f64,
lower_bound: f64,
@ -58,13 +58,22 @@ impl FoodSource {
food_sources
}
pub fn find_best_food_source(food_sources: &Vec<FoodSource>) -> FoodSource {
pub fn find_best_food_source(food_sources: &[FoodSource]) -> FoodSource {
food_sources
.iter()
.max_by(|x, y| x.fitness_calculation.total_cmp(&y.fitness_calculation))
.unwrap()
.clone()
}
pub fn find_most_tried_food_source_index(food_sources: &[FoodSource]) -> usize {
let (most_tried_food_source_index, _) = food_sources
.iter()
.enumerate()
.max_by(|(_, x), (_, y)| x.try_counter.cmp(&y.try_counter))
.unwrap();
most_tried_food_source_index
}
}
impl fmt::Display for FoodSource {

79
artificial_bee_colony/src/main.rs
View file

@ -10,61 +10,62 @@ fn main() {
let mut function_results = vec![];
let mut fitness_results = vec![];
let mut food_sources = FoodSource::create_food_sources(
input.food_source_number,
input.decision_variable_count,
input.upper_bound,
input.lower_bound,
);
for run_counter in 0..input.run {
let mut food_sources = FoodSource::create_food_sources(
input.food_source_number,
input.decision_variable_count,
input.upper_bound,
input.lower_bound,
);
let mut best_food_source = FoodSource::find_best_food_source(&food_sources);
for _ in 0..input.iteration {
for index in 0..input.food_source_number as usize {
for food_source_index in 0..input.food_source_number {
Bee::employed_bee(
&mut food_sources,
index,
food_source_index,
input.decision_variable_count,
input.upper_bound,
input.lower_bound,
);
}
let total_fitness = food_sources.iter().map(|food_source|food_source.fitness_calculation).sum();
let total_fitness = food_sources
.iter()
.map(|food_source| food_source.fitness_calculation)
.sum();
let onlooker_bee_count = input.food_source_number;
let mut last_looked = 0;
for _ in 0..input.food_source_number {
if last_looked >= input.food_source_number {
last_looked = 0;
for _ in 0..onlooker_bee_count {
loop {
if last_looked >= input.food_source_number {
last_looked = 0;
}
if Bee::onlooker_bee(
&mut food_sources,
last_looked,
total_fitness,
input.decision_variable_count,
input.upper_bound,
input.lower_bound,
) {
break;
}
last_looked += 1;
}
}
for index in 0..input.food_source_number as usize {
Bee::onlooker_bee(
&mut food_sources,
index,
total_fitness,
input.decision_variable_count,
input.upper_bound,
input.lower_bound,
);
}
// önce employed biticek sonra onlooker bakacak ve bakılandan tekrar başla
best_food_source = FoodSource::find_best_food_source(&food_sources);
for index in 0..food_sources.len() {
if food_sources[index].try_counter >= input.food_source_try_limit {
// en büyüğü bul sonra limiti geçiyosa kaşif gider
Bee::scout_bee(
&mut food_sources,
index,
input.food_source_try_limit,
input.lower_bound,
input.upper_bound,
input.decision_variable_count,
);
break;
}
}
let most_tried_food_source_index =
FoodSource::find_most_tried_food_source_index(&food_sources);
Bee::scout_bee(
&mut food_sources,
most_tried_food_source_index,
input.food_source_try_limit,
input.lower_bound,
input.upper_bound,
input.decision_variable_count,
);
}
function_results.push(best_food_source.function_calculation);
fitness_results.push(best_food_source.fitness_calculation);

2
artificial_bee_colony/src/utils.rs
View file

@ -10,7 +10,7 @@ use crate::food::FoodSource;
pub struct Input {
pub decision_variable_count: usize,
pub food_source_number: u128,
pub food_source_number: usize,
pub food_source_try_limit: u128,
pub upper_bound: f64,
pub lower_bound: f64,