heuristic function 中文意思是什麼
heuristic function
解釋
啟發式函數-
Supervised learning of heuristic function for refutation
反演啟發函數的監督學習演算法 -
In the preprocessing stage the method of user and session identification often adopt heuristic algorithm for the being of cache and agent. this induce the uncertainty of data resource. the cppc algorithm avoid the limitation and has no use for complicated hash data structure. in this algorithm, by constructing a userld - url revelant matrix similar customer groups are discovered by measuring similarity between column vectors and relevant web pages are obtained by measuring similarity between row vectors ; frequent access paths can also be discovered by further processing of the latter. experiments show the effectiveness of the algorithm. in the fourth part, this thesis bring some key techniques of data mining into web usage mining, combine the characteristic of relation database design and implement a web usage mining system wlgms with function of visible. lt can provide the user with decision support, and has good practicability
本文演算法避免了這個缺陷，且不需要復雜的hash數據結構，通過構造一個userid - uel關聯矩陣，對列向量進行相似性分析得到相似客戶群體，對行向量進行相似性度量獲得相關web頁面，對後者再進一步處理得到頻繁訪問路徑。實驗結果表明了演算法的有效性。第四是本文將傳統數據挖掘過程中的各種關鍵技術，引入到對web使用信息的挖掘活動中，結合關系數據庫的特點設計並實現了一個具有可廣西人學頎士學位論義視化功能的web使用挖掘系統wlgms 。 -
A modified genetic algorithm ( mga ) framework was developed and applied to the flowshop sequencing problems with objective of minimizing mean total flowtime. to improve the general genetic algorithm routine, two operations were introduced into the framework. firstly, the worst points were filtered off in each generation and replaced with the best individuals found in previous generations ; secondly, the most promising individual was selectively cultivating if a certain number of recent generations have not been improved yet. under conditions of flowshop machine, the initial population generation and crossover function can also be improved when the mga framework is implemented. computational experiments with random samples show that the mga is superior to general genetic algorithm in performance and comparable to special - purpose heuristic algorithms. the mga framework can also be easily extended to other optimizations even though it will be implemented differently in detail
提出了一個改進遺傳演算法的結構，並且應用於帶有目標是最小平均總流程時間的流水調度排序中.為了改進一般遺傳演算法的程序，兩個新的操作被引進到這個操作中.這兩個操作為： 1 ）過濾操作：過濾掉在每一代中的最壞的個體，用前一代中的最好的個體替代它； 2 ）培育操作：當在一定代數內演算法不改進時，選擇一個培育操作用於培育最有希望的個體.通過大量的隨機產生的問題的例子的計算機實驗顯示出，提出的演算法的性能明顯好於一般遺傳演算法，並且和此問題的最好的專門意義的啟發式演算法相匹配.新的mga框架很容易擴展到其它最優化當中，只是實施的詳細的步驟有所不同 -
Based on summarized and analyzed the existing problems of the solution for scheduling rtrpmt and tft, the author constructs a new heuristic function which adequately takes predecessor and successor relation among tasks into account, targeting that the direct successor of current running task is to be given the earliest time to be run
針對實時分佈系統中大量的相關周期性多任務，在分析、總結了前人對此類任務的調度演算法解決方案所存在的問題基礎上，構造了一種新的啟發函數，該啟發函數充分考慮了任務之間的前驅、后繼關系，以當前任務的直接后繼具有最早開始執行時間為目標。 -
In the latter case, they are again politeness strategies to redress the face - threatening acts of criticizing or directing, etc. four categories of compliments have been observed in terms of function : affirmative, heuristic, encouraging and critical
就後者而言，表揚仍是一種維護面子的禮貌策略。根據功能，表揚可分為四類：肯定性表揚、啟迪性表揚、激勵性表揚和批評性表揚。 -
The following is the detailed, 1. in the chapter 2 of constructing system modeling, first, the manufacture tasks are calculated and the process is described. then, according to the theory of constraints ( toc ), the constraint items and target function of corporation runing are defined and three rules of heuristic algorithm are described. at last, the model to arranging production plan by heuristic algorithm and the fuzzy logic model to follow the plan be carried out are constructed
在建立系統模型部分，首先，明確企業的加工任務和加工工藝；其次，採用toc理論確定企業生產的約束條件，確定企業運行的目標函數，建立啟發式搜索編排的3大規則；最後，建立啟發式搜索編排生產計劃的模型，和生產計劃執行情況的模糊跟蹤模型。 -
Based on mainstream ant colony ideas, an unusual sequenced local search and a distance based penalty function are added which result in a method that is convincingly shown to be the best heuristic published for this problem class
本演演算法依據蟻群最佳化之精神建構，並加入一順序性局部搜尋程序及以距?為考?之懲罰函?為輔助機制。 -
Furthermore, combined the execution rule of petri nets and the search algorithms of tree, an innovative scheduling method is proposed by applying a heuristic search to the state space of petri nets. specially, by introducing heuristic function, depth - first and width - first is mixed in the search course ; thereby a feasible solution can be generated in a reasonable amount of time
其次，在所得柔性製造系統petri網模型的基礎上，通過把樹的遍歷演算法與petri網的運行規則相結合，提出了一種啟發式調度演算法，通過在演算法中引入反映問題特徵的啟發函數，把廣度優先和深度優先搜索有機地結合，使得該演算法能夠在合理的時間復雜度內得到滿足精度要求的優化調度。 -
Through the study in the data reduction, this paper presents a new reduction algorithm named horafa - svdm and an incremental algorithm of the heuristic optimal reduct finding algorithm of the frequencies function named horafa ? a
本文通過在數據約簡方面的研究，提出了對利用屬性頻率函數的啟發式約簡演算法的改進演算法? ? horafa ? svdm演算法，以及這個演算法的增量版本? ? horafa ? ia演算法。 -
In the field of discretization, frequencies function is imported to the ns algorithm and the new reduct finding algorithm are shown. a new concept - - - - - - candidate core and a new algorithm based on it are presented to solve the question in the ns algorithm with the heuristic reduct finding algorithm
在離散化方面，將屬性頻率函數引入到ns演算法中，提出了相應的約簡演算法，同時為了解決啟發式約簡演算法在ns演算法中存在的問題提出了新的概念? ?候選核和基於候選核的bcc演算法。 -
The a * algorithm is used to search the optimism matching of primary stroke args. the cost function and heuristic function adapt to online graphics are proposed
採用了a ~ *演算法進行元線級別arg的最優匹配，為此提出了適用於聯機圖形的代價函數和啟發函數。 -
At first, the author discusses the nature of metaphors and three functions for metaphors in science : rhetorical, heuristic, and cognitive function
布雷德討論了隱喻的性質以及隱喻在科學中的三種功能：修辭性、啟發性及認知性。 -
Practice and thinking on the heuristic method of teaching in real variable function
在實變函數課中實施啟發式教學的實踐與思考 -
Mental interaction and discourse coherence : on heuristic function of textual interaction theory in reading comprehension teaching
兼談語篇互動理論對閱讀教學的啟示 -
Theoretical proof and simulation suggests that this constructive function has stronger heuristic power, and has better effectiveness for scheduling dag a task - replication based heuristic static scheduling algorithm is also proposed ( namely processor pre - allocation algorithm for dag tasks, ppa ), utilizing the aforementioned heuristic function aimed at rtrpmt
通過理論證明與模擬實驗表明：本文構造的啟發函數具有較強的啟發能力，對dag圖的調度具有較優的效果。利用本文所構造的啟發函數，針對相關周期性多任務，提出了一種基於任務復制的啟發式靜態調度演算法（ dag任務圖的處理器預分配演算法ppa ） 。 -
A heuristic algorithm for obtaining balanced boolean function satisfying high nonlinearity
一種獲得高非線性平衡布爾函數的啟發式演算法 -
Multi - parent genetic algorithm ( mga ) is a heuristic search algorithm. mga has not been developed for a long time, but it has been preliminarily applied in many function optimization problem and many combinatorical optimization problem including nondeterministic polynomial completeness
多親遺傳演算法是一種啟發式搜索演算法，它的發展時間並不長，但已經初步成功地應用到了一些函數優化問題、組合優化問題中，包括許多np完全問題。
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