禁忌搜索算法python实现
时间: 2023-12-04 11:07:19 浏览: 161
禁忌搜索算法的Python实现可以参考以下步骤:
1. 初始化:在搜索空间中随机生成一个初始解i,并将禁忌表H置空。同时,将当前解i设为历史最优解s。
2. 迭代搜索:在每一次迭代中,根据禁忌表和邻域搜索策略生成候选解集合C,然后选择其中的一个候选解作为下一次搜索的当前解。同时,更新禁忌表。
3. 终止条件:设置一个终止条件,例如达到最大迭代次数或找到满意的解。
4. 输出结果:输出最优解和对应的最小值。
下面是一个简单的在Python中实现禁忌搜索算法的示例代码:
```python
class TabuSearch:
def __init__(self, iters):
self.iters = iters
# 初始化其他参数
def generate_initial_solution(self):
# 生成初始解i
pass
def generate_candidates(self, current_solution):
# 根据禁忌表和邻域搜索策略生成候选解集合C
pass
def update_tabu_list(self, tabu_list, candidate):
# 更新禁忌表
pass
def valuate(self, solution):
# 计算解的价值
pass
def run(self):
current_solution = self.generate_initial_solution()
best_solution = current_solution
for iter in range(self.iters):
candidates = self.generate_candidates(current_solution)
next_solution = self.select_next_solution(candidates)
self.update_tabu_list(tabu_list, next_solution)
if self.valuate(next_solution) < self.valuate(best_solution):
best_solution = next_solution
return best_solution
def main():
ts = TabuSearch(iters=200)
best_solution = ts.run()
print('最优解:', best_solution)
print('最小值:', ts.valuate(best_solution))
plt.plot(ts.trace, 'r')
title = 'TS: ' + str(ts.valuate(best_solution))
plt.title(title)
plt.show()
if __name__ == "__main__":
main()
```
需要注意的是,这只是一个简化的示例代码,实际中可能还需要根据具体问题进行相应的调整和修改。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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