聯接優化 的英文怎麼說
中文拼音 [liánjiēyōuhuà]
聯接優化
英文
join optimization-
Optimized association rules are permitted to contain uninstantiated attributes. the optimization procedure is to determine the instantiations such that some measures of the roles are maximized. this paper tries to maximize interest to find more interesting rules. on the other hand, the approach permits the optimized association rule to contain uninstantiated numeric attributes in both the antecedence and the consequence. a naive algorithm of finding such optimized rules can be got by a straightforward extension of the algorithm for only one numeric attribute. unfortunately, that results in a poor performance. a heuristic algorithm that finds the approximate optimal rules is proposed to improve the performance. the experiments with the synthetic data sets show the advantages of interest over confidence on finding interesting rules with two attributes. the experiments with real data set show the approximate linear scalability and good accuracy of the algorithm
優化關聯規則允許在規則中包含未初始化的屬性.優化過程就是確定對這些屬性進行初始化，使得某些度量最大化.最大化興趣度因子用來發現更加有趣的規則;另一方面，允許優化規則在前提和結果中各包含一個未初始化的數值屬性.對那些處理一個數值屬性的演算法進行直接的擴展，可以得到一個發現這種優化規則的簡單演算法.然而這種方法的性能很差，因此，為了改善性能，提出一種啟發式方法，它發現的是近似最優的規則.在人造數據集上的實驗結果表明，當優化規則包含兩個數值屬性時，優化興趣度因子得到的規則比優化可信度得到的規則更有趣.在真實數據集上的實驗結果表明，該演算法具有近似線性的可擴展性和較好的精度A new concept of efficient support is proposed and its two liminal theorems are given and proved. the amelioration algorithm of fuzzy association rules discovery is raised based on efficient support. the uncertainty of the sepm process is noticed
提出了模糊模式有效支持度的概念，對其閾值的選取給出了有關的定理；基於有效支持度對模糊關聯規則挖掘演算法進行了改進；研究了sepm中的不確定性，提出了模糊狀態演化模式挖掘（ fsepm ） ，並對實現過程進行了詳細研究，接下來引入有效支持度的概念對fsepm進行了優化。This thesis has introduced the development of the traditional wireless sensor network and current situation at first, then analyzed the principle an framework of the wireless sensor network, and the challenge to the traditional wireless sensor network technology for environmental monitoring, put forward the novel environmental monitoring system based on wireless sensor network technology, have recommended a kind of brand - new wireless node design plan of framework of wireless sensor network and node hardware to be designed and realized, then based on ieee 802. 15. 4 standard, this thesis analysed the design faces the wireless communication protocol stack used in environmental monitoring, have introduced the realize of physics layer, data chain layer, network layer, application layer. have solved the wireless sensor network data sampling, systematic energy - conservation optimize, this thesis summarized the preceding work finally, have looked forward to the development, application and commoditization in the future
本文首先介紹了傳統無線傳感器網路的發展概況及現狀，然後分析了無線傳感器網路的原理與架構及其在環境監測對傳統無線傳感器網路技術的挑戰，接著本文提出了新穎的基於無線傳感器網路技術的環境監測系統架構設計，介紹了一種針對大氣環境監測的全新的無線傳感器網路節點的構架設計方案以及節點的硬體設計和實現，然後本文以ieee802 . 15 . 4標準為基礎分析設計了面向環境監測應用的無線通信網路協議棧，從工程角度介紹了物理層、數據鏈路層、網路層、應用層的設計實現，解決了無線傳感器網路節點的數據採集、節點互聯以及系統節能優化等問題，最後本文總結了前面的工作，展望了基於無線傳感器網路技術的環境監測系統在未來的發展方向和應用方式等幾個方面的發展遠景。Based on the actual inventory conditions of petroleum enterprises and an analysis of the attitudes of material supply, optimal model of inventory was brought forward to economize capital. in this model, the optimal inventory and purchase are predicated with purchase capability, market price and so on. according to the inventory characteristics in the petroleum area, some inventory control methods were put forward, such as the distributed stocking and wholly limited quantity, purchasing just - in - time, and united stocks management and so forth
作者根據石油企業庫存的實際情況，分析了為生產提供生產物資的特點，建立了一個以節省資金為直接性能指標的庫存優化模型，這個模型能夠根據購買能力、市場價格、資金周轉率等方面的信息預測最佳庫存量和購買量，根據石油行業庫存的特點，提出了分散式庫存整體限量法、即時采購、聯合庫存管理等庫存控制管理方法。The main contents are as follows : 1. the theoretical frameworks of the local fiscal expenditure structures are the core contents of the thesis, and its main points are as follows : ( 1 ) die local fiscal expenditure structures are the interrelationship between the different factors under the economic and finance systems ; ( 2 ) the essence of the optimization of the local fiscal expenditure structures is mat the different factors among the local fiscal expenditure structures are suited to the common social needs and the distribution of mem are reasonable and appropriate ; ( 3 ) the efficiency of the local fiscal expenditures are determined by the reasonability of themselves and its effect on the economic variables ; ( 4 ) in addition to adjust the structures, the efficient expenditure management mechanism is needed in order to maintain the optimization processes
通過研究指明： （ 1 ）地方財政支出結構是指在一定的經濟體制和財政體制下，在地方財政資源的分配過程中，地方財政支出的諸要素相互聯系、相互作用的內在關系和空間表現。 （ 2 ）地方財政支出結構優化的本質是在財政配置資源量占社會資源總量合理的前提下，財政資源內部各構成要素符合社會共同需要的目的，並且分配比例協調合理的狀態。 （ 3 ）地方財政支出結構是否合理，直接關繫到支出本身的效率，而既定的支出效率取決于這種結構對經濟變量的影響，即地方財政支出結構的效應。A good many case of approaching excavation are studied in this article, such as the study of infection of be coal mining to the huayingshan tunnel, technology study of strucked tunnels of metro in shenzhen, countermeasure study of tunnel approaching pile foundation of metro in guangzhou, excavation methods optimized of large cross section subaqueous tunnel approaching pile foundation of lrt in chongqing, etc. on the basic of analysing and concluding relative study production all over the the world by the numbers, classification of approaching excavation, partition of approach zone, formula of partition of approaching zone, approach degree and countermeasure grade of generalized approaching excavation of underground works are put forward. general methods studying and trea
本文結合作者多年來對華鎣山隧道減少壓煤量研究、深圳地鐵重疊隧道第11頁西南交通大學博士研究主學位論文技術研究、廣州地鐵公紀區間廣紡聯段鄰樁施工對策研究和重慶輕軌大坪大斷面車站鄰近基礎淺埋暗挖工法優化分析等諸多近接施工問題案例的研究，在系統分析和歸納總結國內外相關研究成果的基礎上，系統地提出了廣義的地下工程近接施工的分類、分區、分區指標表達式、近接度與對策等級概念以及分區、分度準則，給出了研究和解決近接施工問題的普遍方法，如數值分析先行，模型試驗、現場測試驗證等。Now the improved and optimized proper accessories such as shock absorber, pass - by sub, perforating materials, detonating device and packings, etc., meet the above needs in this kind of wells
通過改進和優化減震器、旁通接頭、射孔器材、起爆裝置以及密封件等器材，滿足了高溫高壓超深井射孔測試聯作的要求。Based on our theoretical predictions, we find optimal splicing parameters on fsm - 30s fiber splicer for low loss joints between erbium doped fiber and other single mode fibers. we also experimentally demonstrate a novel three - stage erbium - doped fiber amplifier with high gain, low noise figure, and high output power. finally, a prototype of a gain - clamped fiber amplifier is obtained with high gain ( 26 db ), low noise figure ( 5. 3 db ), high output power ( 17 dbm ), and large bandwidth ( 31 nm )
文章研究了摻鉺光纖（ edf ）與其他光纖低損耗焊接問題，得到光纖熔接機低損耗熔接的最佳參數，這對摻鉺光纖放大器的科研生產具有一定的指導意義；研究了新型的三段級聯泵浦優配的摻鉺光纖放大器的優化光路結構，得到高增益，低噪聲，大輸出功率的摻鉺光纖放大器；最後研製成功高增益（ 26db ） ，低噪聲（ 5 . 3db ） ，大輸出功率（ 17dbm ） ，寬帶（ 31nm ）增益箝制摻鉺光纖放大器樣機。Heater adopts high quality stainless steel, alloy heating wire, electrical melting mgo powder etc. to make the heating elements after passing advanced technology such as coiling wire, shrinking tube, removing humidity and sealing etc. the connection between flange and heating tube adopts hydrogen arc welding and vacuum lead welding to guarantee the heater without leakage under high voltage
加熱器採用優質不銹鋼管合金加熱絲電熔氧化鎂粉等材料，經繞絲縮管排潮封口等先進的生產工藝製造而成的發熱元件法蘭與電熱管的聯接採用氬弧焊及真空釬焊，保證了加熱器在高壓下的不滲漏。This system can well and truly reflect the real - time circulation status and energy - loss distribution, then provide the theory basic to economize on energy and direct how to operate power units economically. at the same time, the system is based on web and expediently combined to mis system with strong real - time character and alternation, which provides for long - distance automated manage of power industry
整個系統集合了機組運行監測、經濟性分析、運行優化指導等功能，能及時、準確地反映機組當前運行情況及能損分佈，為電廠的節能診斷提供依據，指導電廠的經濟運行；同時系統基於web模式，緊密地和廠內mis網路相聯接，使用方便，具有較強的實時性和交互性，為電力行業的遠程自動化管理提供了有力的幫助。Virtual call speculation if a virtual call, or other call through a function pointer, frequently targets a certain function, a profile - guided optimization can insert a conditionally - executed direct call to the frequently - targeted function, and the direct call can be inlined. register allocation
虛調用推理如果某個虛調用或其他通過函數指針的調用頻繁指向特定的函數，按配置優化可以將一個按條件執行的直接調用插入這個頻繁指向的函數，並且可以內聯該直接調用。The optimizer, in the absence of current statistics, is choosing to do a table scan on both tables involved in the join
在缺少當前統計的情況下，優化器選擇對參與聯接的兩個表進行表掃描。Firstly, a new joint filterbank precoders and decision feedback equalizers structure is proposed, and the corresponding optimization result based on the maximal mutual information criterion is derived. secondly, the concept of dt canonical model is proposed, which is very suitable for the task of blind signal processing based on the second - order statistical of the observations. thirdly, the methods of blind equalization and identification of the tv dispersive channels are researched systematically based on the proposed dt canonical model, and a subspace blind identification algorithm of the time - invariant channel matrix is developed
本文創新性的成果在於：提出了預編碼-判決反饋聯合均衡系統結構，並從理論推導得出了對應的最大互信息量最優化設計結果；首次提出了時變色散通道的離散正則模型概念，該模型適宜於利用觀察數據的二階統計量進行盲信號處理；基於離散正則模型對時變色散通道進行了系統的盲均衡和盲辨識方法研究，提出了對時不變通道矩陣的子空間盲辨識演算法；針對誤差傳播效應問題，提出了可以消除誤差傳播效應的兩級盲辨識演算法；提出了基於離散正則模型的直接盲均衡演算法；提出了基於特徵恢復思想的神經網路直接自適應盲均衡演算法。On the basis of analysis of design criterion of shaft washer and housing washer of tandem composite type cylindrical roller thrust bearing, we present a mathematic model for optimal design in accordance with line contact requirement for cylindrical roller and race, design the washers thickness and thickness variation angle by the search algorithm of constrained stochastic direction
摘要在分析串聯組合型推力圓柱滾子軸承軸圈和座圈設計準則的基礎上，按滾子與滾道線接觸要求建立其最優化設計數學模型，採用機械優化設計中的約束隨機方向搜索法計算軸圈和座圈的厚度、厚度變化角。When an index hint referring to multiple indexes is used on the fact table in a star join, the optimizer ignores the index hint and returns a warning message
如果將引用多個索引的索引提示用於星型聯接中的事實數據表，則優化器將忽略索引提示，並返回一個警告消息。The company optimizes its management of each branch company by means of star connection, giving full play to its overall edge
我司通過總部的星形聯接實現對各分公司的管理，並且通過合理化經營，最大程度的發揮整體優勢。Regard appropriate development of the coal industry as the starting point in the thesis, in analysis at the f our country coal characteristic and coal industry with the other economic foundation that technology get in touch of industry of industry in an all - round way, set up optimize models of industry of coal based on dynamic input - output analysis, and use the econometrics method to confirm the systematic parameter of this model, had asked the model of solving and analysis, applying theory and method of markov probability model modify and forecasting direct consume coefficient matrix in coal industry, and has probed into in the course of revising the parameter changes the influence caused toward other input - output index
論文中以煤炭產業的適度發展為出發點，在全面分析了我國煤炭產業的特點以及煤炭產業與其他產業的經濟技術聯系的基礎上，建立了煤炭產業多目標動態投入產出優化模型，應用計量經濟學方法確定了該模型的系統參數，求解模型並對最優解進行了分析，應用馬爾科夫概型修訂直接消耗系數矩陣以反映煤炭消耗的變化，並探討了在修訂過程中參數變化對其他投入產出指標所造成的影響。This paper mainly discusses a control method of substation voltage and reactive power. in order to get suitable decision for one day 24 hours tap - transformer ' s step switch and shunt capacitor switch, an approach of substation voltage and reactive power control on the basis of the combination of artificial neural network ( ann ) reactive power forecasting and evolutionary programming optimal decision - making is put forward
論文主要研究變電站的電壓/無功控制決策問題，為了確定一天24小時內合適的有載調壓變壓器分接頭位置和並聯電容器投切狀態，提出一種基於人工神經網路的無功負荷預測和進化規劃優化決策相結合的變電站電壓和無功的綜合控制決策。One is to store the dual network of road network with the forward star structure, which is a compact network storage structure satisfying the needs of route planning. the other one is to straight store road network with the generalized forward star structure, which can represent turn restrictions and inter section delays
一種是採用滿足路線優化需要的緊湊的路網存儲結構? ?前向關聯邊結構存儲路網的對偶網路；另一種是利用能夠表達交叉口轉向限制和交叉口延誤的存儲結構? ?擴展的前向關聯邊結構，直接存儲路網。According to the prior achievements, based on pile deformation test data, it puts forward a method that combined the mindlin ' s solution with boussinesq ' s solution to calculate the superimposed stress of djm composite ground, and then uses the superimposed stress to calculate the settlement by layer - wise summation method. by a nonlinear elastic and viscoelastic fem model, based on in - site test data, the back - analysis method of the direct optimal multiple parameters are adopted to calculate the road embankment settlement of typical project
在前人的基礎上，結合樁身應變測試結果，提出了聯合mindlin解和boussinesq解求解攪拌樁復合地基的附加應力的方法，根據計算出來的附加應力再用分層總和法計算攪拌樁復合地基的沉降；採用非線性和粘彈性有限元模型，根據現場實測資料，運用直接優化多參數反演分析方法，對典型工程實例進行了沉降計算對比分析。分享友人