現近年來，資訊技術迅速發展並被廣泛地應用於各個領域中。許多複雜的工程問題可藉由啟發式演算法解決。以鋼筋裁切為例，如何在已知數量及長度之原料鋼筋中，裁出所需鋼筋使得餘料最少或成本最低，便可利用啟發式演算法進行分析。
生物共生演算法(Symbiotic Organisms Search)為學者鄭明淵等人所發展的一種新式最佳化演算法。為提升SOS的性能，學者鄭明淵等人研究發展出自我調適生物共生演算法(Self-tuning SOS)，使用自身演算法調整SOS三個階段的權重參數。但由於其嵌套結構複雜龐大，使得演算法收斂速度極慢，耗時極長，效率性能有待提升。本研究在生物共生演算法的基礎上，針對三個階段的權重進行探討，提出自動調適生物共生演算法(Auto-tuning SOS)。在搜尋最佳解的過程中，使用視窗移動選擇階段權重，同時使用田口方法進行篩選，保留表現較好的參數組合。本研究引入50個標竿函數進行模式驗證，對比結果顯示自動調適生物共生演算法表現優異，並且在搜尋前期顯示了快速收斂的特質，可以通過減少外部循環次數來減少大量的運算時間。
本研究選用鋼筋裁切為案例，生物種群的編碼設計，採用兩倍於需求鋼筋數量維度之向量產生順序和組別，以「下次適應裝箱法」進行裝箱作業，計算目標函數值。研究結果顯示，本研究所建立之演算法模式，與GA、PSO、DE、ABC、SOS等演算法相比較，可獲得更佳最適解；與Self-tuning SOS相比有收斂較快的優勢。

In recent decades, information technology was wisely applied in various areas. Many complex engineering problems can be easily solved by metaheuristic algorithm. For example, the problem of steel bars cutting, which is aim to reduce the oddments or the cost under known material steel bars, can be analyzed by algorithm.
Symbiotic Organisms Search is a new algorithm that developed by Min-Yuan Cheng, etc. from CIC lab. To improve this algorithm, Cheng optimize the weights of three phases using SOS itself, which is named Self-tuning SOS. However, due to complicated nested double-structure, the algorithm converges very slowly and takes a long time. Based on SOS, this study brings out Auto-tuning SOS ,focusing on weights of three phases. It applies Sliding-Window and Taguchi Method during the search to reserve the better weights group. 50 benchmark functions are introduced into this new model, the results shows the Auto-tuning SOS performances well and converge in the early phase. Therefore, function evaluation can be reduced to save computing time.
This study takes steel bars cutting problem as case. Organism code consists of two parts, sequence and group. Next Fit rule is used to calculate the cost of cutting plan. Result shows that this model finds better optimum comparing with GA, PSO, DE, ABC, SOS. It also converges fast than Self-tuning SOS.

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