mixed data model 中文意思是什麼
mixed data model
解釋
混合數據模型-
The content of this paper is arranged as foll owing : chapter 1 introduces the concept of credit, credit risk and credit assessment, as well as the history and development of credit assessment ; chapter 2 introduces the history of ai technology, and the background of expert system and neural network. characters and disadvantages of expert system and neural network are presented respectively and the necessity of combining expert system and neural network is lightened ; chapter 3 shows the process of dealing with sample data, including the treatment of exceptional data and factor analysis, and puts forward the concrete framework of the mixed - expert credit assessment system ; chapter 4 introduces concept of object - oriented technology, and constructs object model and functional model after analyzing the whole system. it also illustrates the implementation of concrete classes by an example of rule class and the inference algorithm in the form of pseudocode ; chapter 5 introduces the structure of the whole system, the major functional models and their interfaces, and the characteristic of the system is also generalized ; chapter 6 summarizes the whole work, and points out the remaining deficiencies as well as the prospective of this method
本文具體內容安排如下：第一章介紹了信用、信用風險、信用評價的概念，回顧了信用評價的歷史、發展和現狀，並綜合各種信用評價模型，指出這些模型各自的優缺點：第二章簡單描述了人工智慧技術，著重介紹有關專家系統與神經網路的基礎知識，通過總結它們的優缺點，指出結合專家系統與神經網路構造混合型專家系統的必要性；本章還介紹了神經網路子模塊的概念，提出了混合型專家系統的一般框架與設計步驟：第三章對樣本數據進行處理，包括異常數據的剔除、因子分析等，提出了信用評價混合型專家系統的具體框架結構，介紹了系統知識庫的主要部分、基於優先級的正向推理機制的流程、以及基於事實的自動解釋機制的具體實現方法；第四章介紹了面向對象技術，進而採用面向對象對信用評價系統進行分析，建立了對象模型和功能模型，並在此基礎上，採用c + +語言以規則類為例說明系統中具體類的實現，用偽代碼的形式描述了推理的演算法；第五章描述了整個系統的結構，對系統主要功能模塊和界面進行了介紹，並總結系統的特點；第六章總結了全文，指出本文所構造系統存在的不足以及對將來的展望。 -
Conclusion when the data exhibits correlation, mixed linear model is more suitable for the analysis of repeated measurement data
結論在數據之間相關性較為復雜時，混合線性模型更加適合於析因設計的重復測量資料的統計分析。 -
Thus, the article 2000 - - 2005 in hebei province in 11 districts and cities of mixed data model building, the impact of urban residents per capita consumption of water in a preliminary analysis
由此，文章以2000 - - 2005年河北省11個設區市的混合數據建立模型，對影響城市居民人均生活用水量的因素進行初步分析。 -
When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system
在探討可靠性設計與可靠性保障技術時，提出了石油測井儀器的可靠性計算新模型，從電氣和機械兩個方面，提出並闡述了應採用的可靠性保障技術及其使用方法：根據最新可靠性理論，建立了石油測井儀器的可靠性系統模型，探討了石油測井儀器的可靠性指標及其獲取途徑，提出了推薦使用的石油測井儀器可靠性指標（ mwture ， nolwnm ， mtbf ， mttf ） ；通過試驗，得到了所設計儀器的穩定工作時間（ mwture ） 。在研究數據處理方法時，闡述了伽瑪信號的特徵，對測量誤差類型進行了統計檢驗；介紹了數字濾波的基本理論、數字濾波方法的概況，並進行了分析；對伽瑪信號數字濾波效果的影響因素及其對測井曲線的影響進行了基本分析；從獲取平穩段真值、地層邊界的檢測與處理兩個方面，建立了數字濾波效果的評價準則（ rvi ， rmse ， sfi ） ，給出了相應的數字濾波方法及效果評價方法；探討了自然伽瑪信號數字濾波器的設計方法，提出了適合自然伽瑪測井的混合濾波方案，探討了混合濾波方案的實現途徑；通過對部分數字濾波方法的定量研究，給出了靈活可選的數字濾波系統構成及實現流程；提出的三種濾波方案，將用於era2000成像測井系統，對自然伽瑪測井數據進行濾波處理。 -
Land adaptability evaluation based on vector - raster mixed data model
基於矢柵混合數據模型的土地適宜性評價研究 -
Traditional mixed data model, which manages special data in the form of files and manages attribute data in the form of relation database, is adopted during building special database ( attribute database vector and grid database ) which is the nucleus of the data bank
數據庫中的核心部分?空間數據庫（屬性數據庫與圖形圖像庫）採用傳統的混合數據模型，以文件的形式管理空間數據，以關系數據庫管理屬性數據。 -
5. a mixed data model called relation - level - object, which is used to image retrieval system in flood prevention, is presented in order to satisfy special access requirement for image data and spatial data. with the research results of this dissertation, a prototype system, a content - based engineering image retrieval system, is designed and implemented
研究了圖象檢索技術在水利行業中的應用，提出了關系?層次?面向對象的混合數據模型，並擴展數據模型以滿足多媒體數據與空間數據的特殊情況，摘要研究了系統實現的具體技術方案，設計並實現了一個用於工情圖象檢索模型系統。 -
By the hydraulic model test the application feasibility of the roller bucket with low - ridge was demonstrated. comparing the hydraulic calculation data and operation rusultes, the article made some summarise. the principle of mixed flow for energy dissipation design has been well vertified through the study results
本文主要通過對某電站水利樞紐下游消能防沖的水力計算和整體模型、斷面模型的試驗分析，驗證了低鼻坎戽流消能在此類工程中應用的可行性。 -
The dual standard quantity ( the work piece and the discrete standard quantity ) mutual measuring and model verification methods are also proposed, which perfects the whole modifying process from data measuring, error separation, model establishment to real correction. after researching the discrete standard quantity system dynamic error separation technique, two error correction methods based on genetic algorithm and neural network mixed modeling technique are established. the two methods are the discrete standard quantity dynamic error direct / synchronous correction and prediction model correction ; the model ' s parameters and model ' s exercising method are also confirmed
設計了雙標準量值（工件和離散標準量）互比測量的模型驗證方法，完善了從數據測量、誤差分離、模型建立到實際修正的整個修正過程；研究了離散標準量系統動態誤差分離技術，建立了基於遺傳進化演算法與神經網路混合建模技術的兩種誤差修正方法? ?離散標準量動態誤差直接（同步）修正方法和預報模型修正方法，並確定了模型結構參數和模型訓練方法；分析了預報模型的多次預報性質，並得出了多次預報與多步預報的等效關系，確定了測量系統的有效預報范圍以及模型參數對泛化誤差的影響；進行了模型的對比實驗驗證和被測工件動態誤差修正試驗，成功地實現了任意二面角和圓分度的實時誤差修正。 -
Abstract : an identification model of taste signals is developed based on fuzzy neural networks. the data compression and feature extraction of the sampled taste signals obtained using taste sensors are implemented employing wavelet transformation. fuzzy neural networks are used to identify the taste signals. the training of network weights and the optimization of membership functions are conducted employing genetic algorithms. the data processing and fuzzy identification of mixed acid and sweet taste signals are realized. simulated experimental results show that it is feasible and effective to introduce fuzzy neural networks into the fuzzy identification of taste signals
文摘:文中提出了一種基於模糊神經網路方法的味覺信號識別模型，利用小波變換實現了對傳感器所採集的味覺信號進行數據壓縮及特徵抽取，以模糊神經網路作為味覺信號的識別工具，並利用遺傳演算法訓練網路權值、優化隸屬度函數.文中實現了對酸、甜復合味覺信號的數據處理和模糊識別.實驗結果表明了將模糊神經網路引入到味覺信號模糊識別的可行性和有效性 -
The evaluation index system of keerqin sandy desertification was established by using remote sensing data, and the occupation ratio of bare sandy land was obtained by mixed spectrum model
利用外業調查的數據對該指標體系進行驗證，結果表明該指標體系適于研究區域的荒漠化評價。 -
The combination of the subtree - based storage model with the document - based to ensure the efficiency and integrality of the data retrieval for all sorts of heterogeneous and context mixed data to the fullest extent ; 2. dynamically branching and merging combined with the data mapping mechanism, supports the xml document efficiently and can improve the operation capability of the system to some extent ; 3. referring to the characteristic of xquery, it presents a new operation language for xml data, xqul, which supports the query operation as well as the update operation on xml ; 4
本文提出了一套較為通用的非結構化信息的nativexml文檔存儲訪問策略和實現方案作為對非結構化信息存取機制研究的探索和嘗試，主要包括下列理論及技術: 1 .基於子樹和基於文檔的存儲模式相結合，以最大程度保證底層各類形式異構和內容混雜的數據存取的有效性和完整性; 2 .動態分枝合成技術和數據映像機制的引入，實現對xml文檔的有效支持，並在一定程度上提高系統處理性能; 3 .結合xquery查詢語言特點，提出一種新型xml數據操作語言xqul ，支持xml數據的查詢以及更新操作; 4 .三種索引（文檔索引、結構索引、值索引）的建立，為xml數據提供從站點到文檔，從文檔到元素的多級訪問策略。 -
This work is contributed to the design and the construction of the traditional expert system part of the mixed system. firstly, we deal with sample data provided by a bank in fujian and abstract financial ratios by statistical methods ; secondly, we construct knowledge base according to area - knowledge of credit assessment, and design a priority - based forward - inference engine and a fact - based automatic explaining mechanism ; thirdly, we adopt object - oriented technology to analysis the system and construct object model and functional model of expert system ; finally, by using access database to construct system knowledge base, and c + + builder software to program, we develop a credit assessment prototype system based on mix - expert system
以某銀行提供的企業樣本數據為基礎，在完成對樣本數據處理、抽取財務比率等基本工作后，根據信用評價領域知識的特點構建了系統的知識庫，設計了基於優先級的正向推理機制與基於事實的自動解釋機制，然後採用面向對象技術對系統進行分析，建立專家系統的對象模型和功能模型，在此基礎上，採用access數據庫設計系統的知識庫，採用c + + builder開發軟體實現了基於混合型專家系統的可視化信用評價系統原型。
分享友人