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This commit is contained in:
Ahmet Kaan GÜMÜŞ 2024-11-20 00:20:40 +03:00
parent dc5c855dd7
commit d694cea4a5
3 changed files with 76 additions and 58 deletions
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69
artificial_bee_colony/src/bee.rs
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@ -11,32 +11,13 @@ impl Bee {
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;
}
send_bee(
food_sources,
index,
decision_variable_count,
upper_bound,
lower_bound,
);
}
pub fn onlooker_bee(
@ -49,7 +30,7 @@ impl Bee {
) {
let fitness_for_index = food_sources[index].fitness_calculation;
if fitness_for_index / total_fitness <= rand::thread_rng().gen_range(0.0..=1.0) {
Self::employed_bee(
send_bee(
food_sources,
index,
decision_variable_count,
@ -79,3 +60,37 @@ impl Bee {
}
}
}
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;
}
}