multilevel algorithm 中文意思是什麼

The simulation results show that the proposed algorithm can accomplish the multilevel group formation in real time with lower calculation complexity, and better performance can be achieved in the situation assessment for space group formation

模擬結果表明，所提演算法能實時完成多個級別的空間合群融合，其計算復雜度也比較低，而且在空間合群的態勢評估中獲得了比較好的結果。

For supporting multilevel embedding domains, linear table instead of multilevel table is used to make the implementing of information tables management ( such as symbol table and constant table management ) simple and effective. to fulfill the searching algorithm of symbol table and constant table, an assistant table is introduced to solve the problem caused by the use of hash algorithm

在信息表管理方面，沒有採用多級的表組織方式，而採用了線性的表組織方式，簡單高效地實現了對作用域多層嵌套的支持；在表的查找演算法的實現中，通過輔助表的引入，解決了符號表和常量表的順序填寫法與hash演算法中表項記錄的hash函數定位法之間的矛盾這一難點。

Since there are many uncertain and fuzzy factors that affect the outcome of simulation, multilevel fuzzy - synthetic judge is used in valuation of fitness in evolutionary strategy algorithm. this method can check the result of simulation accurately

本文採用綜合模糊評判的方法來評價種群的適應度，該方法能綜合地考慮多種影響因素，對模擬試驗的輸出性能指標作出科學評價。

The present paper applies fast multipole method ( fmm ) and multilevel fast multipole algorithm ( mlfma ) based on the higher order moment of method ( mom ) to solve scattering from complex target

本文採用基於高階矩量法的快速多極子方法（ fmm ）及多層快速多極子方法（ mlfma ）計算復雜目標的電磁散射。

When the number of grid level is fixed, a superconvergence result for the multilevel linearization algorithm is established

在固定網格層數情形下，我們得到了多重網格線性化演算法的超收斂結果。

Second, discussing the detecting and eliminating of inference channel, different channel detecting methord are provided according to static, dynamic and compositional channel, and a new algorithm of eliminating the inference channel by promoting security was presented. third, discussing many problems encountered by transaction, which is from single - level to multilevel, and a transaction schedule algorithm is given based on data replicated architecture. according to the theory mentioned above, a mls / dbms is developed, and the experiment result has showed the correctness of the theory

本文圍繞安全數據模型，多級安全環境下的事務處理，推理控制展開了探討，首先針對空值的二義性和數據穿越問題，提出一種改進的多實例安全模型，並對外鍵引起的存儲隱通道進行了控制，提高了查詢的效率;其次探討推理通道的檢測和排除問題，針對靜態、動態推理通道和復合通道分別給出了不同的通道檢測方法，並提出一種通過提高輸入安全密級來消除推理通道的演算法;最後討論了事務從單級拓展到多級所面臨的各種難題，提出了一種基於數據復制結構的事務調度演算法。

Proposing the multilevel indexing structure and algorithm that can effectively handle the huge user - profile files, and adopts the model of knapsack problem to solve the problem for providing suitable volume of information to users

提出了可以高效處理大量user - profile文件的多級索引結構及演算法，用背包問題模型來解決給用戶提供恰當數量信息的問題。

First, by analysing the disadvangtages of the decomposition and recovery algorithm in the usual security model, a new algorithm of double structure tables, which is suitble for master - slaver structure tables, is presented in this paper. second, in resolving the semantic ambiguity and operational incompleteness easily emerged in master - slaver structure tables, an improved master - slaver structure table model and relative decomposition and recovery algorithm are provided. third, considering the merits and demerits of security model, a multilevel secure transaction model is defined on the basis of security model

本文通過分析以往安全模型的分解和恢復演算法的缺點，提出了一個適合於主從結構表這種雙結構表安全模型的分解和恢復演算法;針對主從結構表安全模型容易產生語義模糊性和操作不完備性等問題，提出了一個改進的主從結構表安全模型，並提出了其分解和恢復可行方法;討論了安全模型的優缺點，定義了建立在安全模型基礎之上的多級安全事務模型，分析了多級事務面臨的眾多難題，提出了一個安全、正確的多級事務調度演算法;根據上述的諸多理論，開發了一個多級安全數據庫管理系統的原型系統。

The first chapter in this paper provides a survey of data mining technology, and explains basic concepts, function and the whole framework of data mining and difficulties in developing and some future directions in association rule generation ; the second chapter introduce the basic concepts, brings forward a classification of association rule ; the third chapter give a deep research on algorithms of every kind of association rule, include mining single - dimensional signal - level association rule and multidimensional multilevel association rule, it describes these algorithm, point out some method to optimize this algorithm and test its quality with experiments ; the fourth and fifth chapter introduce the designs about association rule mining system basing on relation database visual foxpro in detail : according to system frame of the association rule mining, actualize a new mining algorithms and analyses every function module of program, at last further analyses the left problems in designs

本論文第一部分對數據挖掘技術進行了總體介紹，說明了基本概念、功能和系統總體框圖以及發展中的難點和研究方面；第二章對關聯規則基本概念的進行了介紹，提出了關聯規則的分類方法；第三章探討了挖掘各種關聯規則的演算法，從挖掘單維單層布爾關規則的經典的apriori開始，分析了挖掘單維、多層關聯規則的演算法，多維關聯規則的演算法到多維多值屬性關聯規則的演算法。文中提出演算法優化方法，並對其性能進行了實驗測試；第四部分、第五部分詳細介紹了基於關系型數據庫的關聯規則挖掘系統的設計構思，根據關聯規則挖掘系統結構框架，實現了基於visualfoxpro的關聯規則挖掘系統，其于採用了一個新型的基於關系數據庫的關聯規則挖掘演算法，提高了挖掘效率，並詳細分析了程序設計的各個功能模塊，最後就設計中遺留的問題進行了進一步的分析。

This part put forward the system conception of kdd and the apriori algorithm. then evolved the create - frequent - set algorithm which was fit for the freight agent management system. because of the shortage of efficiency, 1 improved the algorithm. because some of the items were not boolean variables, 1 need the quantitaitve attributes association rules discovering algorithm. in general, there had the levels among the items, so multilevel association rules existed. after perfecting the algorithmic need interpret and evaluate the knowledge. in the end, 1 discussed the privacy and security of kdd. the fifth part described the future problems and prospect

第四章是論文的主體，著重介紹知識發現的全過程，按照semma方法論首先進行數據準備，然後進入數據挖掘階段，提出知識發現的概念體系和公認的apriori演算法，從該演算法演變出適合於貨代管理系統的生成頻繁項目集的演算法；因為在實際應用中存在效率上的不足，因此進一步地提出了改進方案；在事務處理中各個項目並不都是布爾型變量，因此需要特定的針對多值屬性的關聯規則發現演算法；通常情況下，項目之間存在有層次關系，因此多層次關聯規則的發現普遍存在；演算法完善並運行后需要對發現的知識進行解釋和評估；本章的最後討論了知識發現的私有性和安全性問題；第五章講述有待解決的問題和發展前景。

Using multilevel fast multipole algorithm to analyze electromagnetic scattering in resonance region of 3 - d complex objects

多層快速多極子分析三維復雜目標的諧振區電磁散射特性

A multilevel spam filtering algorithm based on artificial immunity

一種基於人工免疫的多層垃圾郵件過濾演算法

Research on electromagnetic scattering of complex targets has been received much attention for a long time, the fast inhomogeneous plane wave algorithm ( fipwa ) in this paper performs well in this purpose, and the computation complexity of its multilevel version ( mlfipwa ) is of the same order as the multilevel fast multipole algorithm ( mlfma )

復雜目標電磁散射研究長期以來廣受關注，本文研究的快速非均勻平面波演算法，可以快速精確的求解任意復雜目標的電磁散射問題，其多層形式的計算復雜度與多層快速多極子相當。

For these proposes, we chose electromagnetic boundary integral equation ( bie ) theory as the theoretical foundation, method of moments ( mom ) as numerical process and the multilevel fast multipole algorithm ( mlfma ) to accelerate the solving process and reduce memory requirement

為此，我們選擇了電磁場邊界積分方程（ bie ）理論作為理論基礎，以矩量法（ mom ）作為數值求解方法，並使用多層快速多極演算法（ mlfma ）來加速求解過程和降低存儲需求。

Multilevel analysis of switch state alternation and a fast and efficient algorithm of distribution optimization operation were provided in this paper

論文結合開關交換和網路構建的思想，提出多級開關狀態互換分析，構築快速高效的配電網路優化運行演算法。

In the first part of this paper, a three - level situation assessment functional model, which consists of situation perception, situation recognition and situation projection, is presented and it leads us to a functional decomposition of a multilevel situation assessment process. the essential characteristics and reasoning mode of situation assessment are analyzed in detail with some examples present and the common essence of situation assessment and its reasoning frame is concluded. after discussion of algorithms of situation assessment, a universal template matching algorithm is brought forwards

本文首先提出態勢覺察、態勢理解及未來態勢預測三級態勢估計功能模型，然後具體分析了各個部分實現的功能；通過幾個實例分析了態勢估計問題的本質特徵和推理模式，歸納出態勢估計及其推理框架的共性；對態勢估計推理演算法做了一些研究，提出一個通用的態勢估計模板匹配演算法。

To further speed up the solution of scattering from three dimensional electrically large object by multilevel fast multipole algorithm ( mlfma ), a local multilevel fast multipole algorithm ( lmlfma ) based on local interactions is proposed to evaluate matrix - vector multiplication

摘要為了進一步加速多層快速多極子演算法求解電大尺寸目標電磁散射，提出了一種基於局部耦合技術計算矩陣矢量相乘的多層快速多極子方法。

Security constraints are consistent by modifying security constraint definition, and an effective classification assignment algorithm is given in this paper. we analyze the problem of inference channel and give solution to solve the problem during database analysis and design period. by analyzing the problems resulting from extending single - level transactions to multilevel transactions, we also give a multilevel secure transaction schedule algorithm based multiversion snapshot graph

本文提出採用主從結構表的方法對blp模型加以改造，使得改造后的blp模型具有較高的可用性和安全性；通過修改安全約束的定義，使得安全約束之間始終是協調的，並給出一種高效的密級分配演算法；討論了推理通道問題，給出了在數據庫分析、設計等階段可以採用的對策；分析了事務從傳統的單級擴展到多級面臨的眾多難題，給出了一種基於多版本串列化圖的事務調度演算法；根據上述理論，開發了一個多級安全數據庫管理系統的原型系統。

Multilevel security system based on pocs algorithm

演算法的多級安全共享

Multilevel thresholding based on genetic algorithm

基於遺傳演算法的圖像多閾值自動分割方案