derivative hybrid 中文意思是什麼
derivative hybrid
解釋
衍生雜種- derivative : adj. 導出的；派生的。n. 1. 派生物。2. 【語言學】派生詞。3. 【化學】衍生物。4. 【醫學】誘導法[劑]。5. 【數學】導數，紀數，微商。adv. -ly
- hybrid : n 1 【生物學】雜種，雜交種；混血兒。2 （由兩種來源的東西組成的）混合物；受過兩種不同文化傳統教育...
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In this dissertation, we study some stability properties for two impulsive differential systems employing lyapunov ' s second method : one system is impulsive hybrid differential system : the other is differertial system with impulses at variable time : herein these stability results do not require a lyapunov function to have a negative definite first derivative along trajectories of the system, further we may not require its derivative to restrict the function increasing growth ; and we do not give conditions on continuous portion or discrete portion of the systems respective ! } ", hence we can give mixing conditions on them
在這篇碩士學位論文中，我們主要藉助lyapunov第二方法的思想，討論了兩類脈沖微分系統：脈沖混合微分系統和具有依賴于狀態脈沖的微分系統的穩定性問題。不同於以往的研究，本文所找的lyapunov函數沿系統軌線的一階導數不再局限於常負或定負，甚至不用其導數來限制其增長速度；不再局限於對離散或連續部分分別設置條件，而是對其離散和連續部分設置混合條件。 -
This algorithm has conquered the deficiencies of the traditional optimization methods that require calculating the derivative of the objective function and that are easily trapped in the local optimal areas. but the shortcoming of ga is its poor search efficiency. the thesis suggests integrating the gradient - based algorithm sqp into ga, and thus combining the global search ability of ga and fast convergence ability of sqp, which results in two hybrid algorithms ga - sqp - i and ga - sqp - ii
該方法克服了傳統優化方法需要計算目標函數導數且容易陷入局部最優的缺陷，但遺傳演算法本身具有搜索效率低的缺陷，本文提出將其與傳統梯度演算法sqp相結合，發揮遺傳演算法的全局搜索能力和梯度演算法收斂快的優勢，開發了兩種混合演算法ga - sqp - i和ga - sqp - 。
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