
[數] 優化算法
Design of experiment and global optimization algorithm are integrated in the system to enhance optimization robustness and accelerate convergence.
優化設計采用試驗設計與全局優化算法相結合以提高設計的穩健性,加速收斂。
The standard particle swarm optimization algorithm as a random global search algorithm, because of its rapid propagation in populations, easily into the local optimal solution.
标準的粒子群優化算法作為一種隨機全局搜索算法,因其在種群中傳播速度過快,易陷入局部最優解。
In this paper, we apply WAGA to optimize soft morphological filters and study the performance of optimization algorithm with various noise percentages under MAE or MSE error criteria.
本文應用WAGA優化柔性形态濾波器,并研究了在不同噪聲比例和最小平均絕對誤差(MAE)、最小均方誤差(MSE)準則下優化算法的性能。
The iterative optimization algorithm is an important method in pattern recognition.
疊代最優化算法是模式識别中一種重要方法。
But too complex and aggressive optimization algorithm will cost much compilation time and resources.
而複雜的編譯優化算法需要耗費大量的編譯時間和資源。
A redundancy optimization model is established. A new method of system reliability grounded in particle swarm optimization algorithm, which combines with idea of genetic algorithm, is put forward.
建立了可靠性冗餘優化模型,提出了一種基于粒子群優化算法的可靠性優化的新方法,該方法結合了遺傳算法的思想。
A particle swarm optimization algorithm source code, this is a VB source languages, it is practical.
一種粒子群優化算法源程式,這是一個VB語言編制的源程式,很實用。
In this paper are presented the basic conception of mutual information, the transform model, the insert value algorithm, the optimization algorithm and the strategy in computing mutual information.
詳細地介紹了互信息的基本概念、歸一化互信息、互信息計算中常用的變換模型、插值方法、優化算法及提高配準速度策略等。
For satellite data transmission scheduling problem(SDTSP) restrained with time windows and resources, ant colony optimization algorithm based on solution construction graph model is proposed.
針對具有時間窗口和數傳資源限制衛星數傳調度問題,提出了基于解構造圖模型的蟻群優化算法。
Immune Algorithm is an optimization algorithm based on immune system of organism in nature, now it is a new development direction in multi-object of mechanical optimization design.
免疫算法是一種基于自然界生物體免疫系統的優化算法,是目前機械多目标優化設計中的一個新的研究方向。
The paper introduces main features about the toolbox and give optimization algorithm under constrain condition.
介紹了工具箱的主要特點,并給出了在約束條件下的優化算法。
Chaos optimization algorithm, which combines chaos carrier wave with simulated annealing algorithm improves system optimization speed.
混沌優化算法将混沌載波和模拟退火策略結合加快了尋優速度。
Intelligence optimization algorithm is a new type optimization algorithm.
群智能優化算法是一種新型的優化算法。
A new heuristic optimization algorithm for solving the problem was presented.
提出了解決這類問題的新的啟發式優化算法。
The global optimization algorithm for multimodal functions of both continuous and discrete variables are stu***d in the first part.
首先,重點讨論了適合于連續變量及離散變量多極值點目标函數的全局優化算法。
Competitive algorithm is a parallel heuristic optimization algorithm, its searching mechanism simulate the pursue motive to the support-rate in the electing activity.
競選算法是一種具有并行能力的啟發式優化算法,其搜索機制模拟競選活動中對支持率的追求動機。
Experimental results show that the algorithm is an efficient global optimization algorithm.
實驗結果表明,該算法是一種快速有效的全局優化算法。
Subsequently, modeling means, optimization algorithm and its status in detail for the mission planning system are analyzed.
然後,詳細分析了任務規劃系統的建模技術及其優化算法的研究現狀。
To further improve the performances of infinite impulse response(IIR) digital filters, a new approach based on the seeker optimization algorithm(SOA) was proposed for IIR digital filter design.
為進一步提高無限沖擊響應(IIR)數字濾波器的性能,提出了一種基于搜尋者優化算法(SOA)的IIR數字濾波器設計方法。
It is compared with basic particle swarm optimization algorithm and genetic algorithm. Results prove that this algorithm is effective.
經過實驗仿真,與基本微粒群優化算法、遺傳算法進行比較,證明了該算法的有效性。
To improve the efficiency of disk scheduling, this paper proposed an optimization algorithm of disk scheduling based on the Average Seek Time(AST).
針對如何提高磁盤調度效率的問題,提出了一種基于平均尋道時間(AST)的磁盤調度優化算法。
For parameter estimation of nonlinear system, this paper proposed a hybrid optimization algorithm integrating parallel chaotic search algorithm(PCS)with pattern search method(PS).
提出了一種并行混沌搜索結合模式搜索法的混合優化算法,并應用于非線性系統參數估計。
The chaotic time series optimization algorithm is applied in the analysis of the pumping experiment data to optimize the function of aquifer parameters to estimate the parameters.
以泰斯公式為例,将混沌序列優化算法應用于求解分析抽水試驗資料,确定含水層參數的函數優化問題。
In this dissertation, Membrane optimization algorithm is applied in finding sequences suitable for reliable DNA computing in this thesis, a new method of DNA sequence design is pu.
本文采用膜優化算法優化DNA計算編碼序列,提出了一類求解DNA編碼問題的新方法,擴展了膜計算的應用領域。
This paper researches the application of the stochastic parallel gra***nt descent(SPGD)optimization algorithm on the beam cleanup system.
就隨機并行梯度下降(SPGD)最優化算法在光束淨化系統中的應用展開研究。
A wide range of papers related to the life system modeling and simulation, artificial intelligence, calculation and optimization algorithm and its application.
一個廣泛的生命系統建模與仿真,人工智能,計算和優化算法及其應用有關的論文。
The simulation result shows that ACNN is a global optimization algorithm which can effectively solve four-coloring map problem.
仿真結果表明,這是一個能有效求解四色圖着色問題的全局最優化算法。
Developed the research which coupling ANSYS finite element analysis and Fuzzy Genetic optimization Algorithm.
開展了ANSYS有限元分析與模糊遺傳優化算法的耦合研究。
Structure of multi-layer feedback forward neural network is optimized using improved particle swarm optimization algorithm. Learning quality and training speed of the neural network are improved.
提出的自適應粒子群優化算法,用于優化多層前饋神經網絡的拓撲結構,提高了神經網絡的學習質量和速度。
優化算法(Optimization Algorithm) 是指一類用于在給定約束條件下,尋找某個目标函數(Objective Function)最優解(最大值或最小值)的計算方法或步驟序列。其核心目标是在可行的解空間中高效、準确地定位最佳決策方案。
梯度下降法(Gradient Descent)
適用于目标函數可微的場景。通過計算函數在當前點的梯度(指向函數值增長最快的方向),沿負梯度方向疊代更新變量以逐步逼近局部最小值。廣泛應用于訓練神經網絡(如反向傳播算法)。其更新公式為:
$$ theta_{t+1} = theta_t - eta abla f(theta_t) $$
其中 $theta$ 為參數,$eta$ 為學習率,$ abla f$ 為梯度。來源:經典數值優化教材(如 Nocedal & Wright, Numerical Optimization)。
進化算法(Evolutionary Algorithms)
模拟生物進化機制(選擇、交叉、變異),維護一個候選解群體,通過多代演化逐步優化。代表性算法包括遺傳算法(Genetic Algorithms)。這類算法擅長處理非凸、非線性或離散優化問題,對目标函數連續性要求低。來源:IEEE Computational Intelligence Society相關研究。
啟發式與元啟發式算法
如模拟退火(Simulated Annealing)、蟻群優化(Ant Colony Optimization)。通過引入隨機性和特定規則(如退火中的溫度下降)探索解空間,避免陷入局部最優,常用于組合優化問題(如旅行商問題)。來源:《Operations Research》期刊相關論文。
scipy.optimize
模塊)優化算法(Optimization Algorithm)是用于在給定約束條件下尋找目标函數最優解(最大值或最小值)的數學方法或計算步驟。它在科學、工程、經濟學和人工智能等領域廣泛應用。以下是詳細解釋:
梯度下降法(Gradient Descent)
通過疊代調整參數,沿目标函數梯度反方向更新以最小化函數值。適用于連續可微問題,但可能陷入局部最優。
遺傳算法(Genetic Algorithm)
模拟生物進化過程,通過選擇、交叉和變異操作搜索全局最優解。適合複雜、非凸問題,但計算成本較高。
粒子群優化(Particle Swarm Optimization, PSO)
模拟鳥群覓食行為,粒子通過跟蹤個體和群體最優位置更新自身狀态。常用于多目标優化。
Adam(Adaptive Moment Estimation)
結合動量法和自適應學習率的深度學習優化器,能高效處理高維參數和非平穩目标函數。
梯度下降的更新公式為:
$$
theta_{t+1} = theta_t - eta cdot
abla_theta J(theta)
$$
其中,$theta$ 是參數,$eta$ 為學習率,$
abla_theta J(theta)$ 是目标函數關于參數的梯度。
如需進一步學習,可參考經典教材《Numerical Optimization》或線上課程(如Coursera的《Machine Learning》)。
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