難得數據 的英文怎麼說

中文拼音 [nándeshǔjù]
難得數據 英文
hard-to-get data
  • 難 : 難Ⅰ形容詞1 （做起來費事的） difficult; hard; troublesome 2 （不容易; 不大可能） hardly possible 3...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 據 : 據Ⅰ動詞1 （占據） occupy; seize 2 （憑借; 依靠） rely on; depend on Ⅱ介詞（按照; 依據） according...
  • 難得 : 1. （不易得到） hard to come by; rare 2. （不常發生） seldom; rarely
  • 數據 : data; record; information
  1. It is difficult point of the design of the new system that directly generated statistic data from the data sources. because that the ability of monitoring of each enterprise of petrochina is different. especially they lack of some monitoring point, and the monitoring frequency is inconformity

    從數據源直接生成統計匯總數據是新系統的設計難點和突破口由於股份公司各企業監測能力和具體情況懸殊很大，存在監測頻率不一致、監測點位不足等問題，使得監測點類別劃分上很困難。
  2. Because color isochromatic fringes appear in the stress model based on a plane polariscope in white light, we studied the problems systematically by a digital camera as image inputting device, digital image processing technique and bp artificial neural network. based on the work that has been reported before, a technique named five - step color phase shifting technique ( fcpst ) to acquire single isoclinics is presented

    根據白光入射時應力模型在偏振儀光學系統中的等色線條紋是彩色的特點，本論文採用彩色數碼相機作為數據採集與輸入設備，結合彩色信息圖像處理和bp神經網路等新技術，對上述兩個難題進行了系統的研究，獲得以下成果：在綜合前人工作的基礎上，提出獲得全場單純的等傾角相圖的五步彩色相移法。
  3. In automatic acquisition and procession of the photoelastic data, there are some troubles about how to acquire single isoclimcs and to improve the precision of evaluating isochromatic fringe orders in the thin slice of the three - dimension model when the actual problems are solved by photoelasticity

    用光彈性實驗處理實際問題時，在數據自動採集與處理中，如何獲得單純等傾線的問題仍是一大難點，此外就是如何進一步提高三維凍結模型薄切片的等色線定級精度問題也比較困難。
  4. However, such exploratory methods alone do not provide the opportunity to engage in statistical inference and to provide results with biological sense, especially they are not fit to analyze the dynamic gene expression data which are highly correlated between time scries

    但是僅用這些方法不能對分析結果進行統計推斷，難以得到具有生物學意義的結論，尤其是不適合分析前後時間點數據高度相關的動態基因表達數據。
  5. It is hard to get the important parameters such as link delay and loss rate directly, because the internet has becomes massive, distributed and heterogeneous. network tomography is now a hotspot for inference the internal link delay and loss rate with the end - to - end measurement data. we call current network tomography as unconstraint network tomography for its not adding any constraint condition and all of them nearly are based on some likelihood algorithm

    由於網路日益向著大型化、異構化、分佈化發展，通過直接進行網路測量的方法，來獲得網路內部鏈路的時延和丟包率參數就變得越來越困難，網路層析成像方法作為一種通過端到端的測量數據來推斷網路鏈路性能參數的技術正成為研究的熱點之一。
  6. If a computer is given unintelligible data, it returns unintelligible results.

    如果計算機得到的是難以理解的數據，它給出的也將是難以理解的結果。
  7. Now, because the means of data administration is very poor and some other reasons, the market data approach is scarcely used by land valuator. in this paper, the author analyzes the application actuality and difficulties of the market data approach, and try to overcome these difficulties. then the author accomplishes applied geographical information system for the market data approach based on urban land grading and evaluation system, taking nantong city as example, and has got anticipative purpose

    本研究在分析市場比較法應用狀況、應用難點的基礎上，提出了市場比較法應用過程中難點問題的解決方法，從技術角度上闡述了基於城鎮土地定級估價信息系統之上的市場比較法評估信息系統的建立，尤其是以南通市為例完成了該市市場比較法信息系統和各項基礎數據庫的建設，取得了預期的研究成果。
  8. Although two dimensional visualization algorithms have been widely used in the engineering software, most of the advanced 3d methods are now still under research because it hardly meet the real - time requirement of engineer apply due to the complexity of three dimensional

    二維數據場可視化的技術發展比較成熟，目前已經在各種工程計算軟體中得到廣泛的應用。但是三維數據場的可視化方法由於三維物體的復雜性還很難滿足工程應用的要求，目前仍處于探索階段。
  9. Because of the huge quantity and high complexity of the original data set, data mining needs more and more time and memory to deal with these data sets. it is not accuracy in limited resource. based on the clustering algorithms analysis, this paper selects a cluster algorithm with low complexity to deal with huge quantity dataset

    由於數據集中數據的增大和數據復雜性的提高，數據挖掘演算法無論是從演算法運算的時間上，還是從演算法本身所需要的存儲空間上都急劇的膨脹，使得在現有資源下很難實現數據集的最終聚類。
  10. Based on the analysis of the characteristics of the raw mix slurry preparing process in alumina sintering production process, firstly, a mechanism model based on material balance principle was established as the master - rule model for the quality prediction ; secondly, considering the problem that the alkali liquor composition was unstable and its real - time measurement was difficult, a nn ( neural networks ) prediction model for the prediction of the alkali liquor composition was set up and nesting - integrated with the mechanism model ; finally, using the gray theory for the information mining from the errors of the mechanism model, a gm ( 1, 1 ) compensation model was put forward and parallel - connection - integrated with the mechanism model, achieving a raw mix slurry quality prediction model

    摘要針對燒結法氧化鋁生產過程中生料漿配料工藝的特點，根據物料平衡的原理建立機理模型，作為生料漿質量預測的主規律模型；針對堿液成分波動大且難以實時檢測的問題，對堿液成分含量建立了神經網路預測模型，並和機理模型進行嵌套集成；利用灰色理論對機理模型的偏差數據進行信息挖掘，建立了gm （ 1 ， 1 ）補償模型，並與機理模型進行並聯集成，獲得生料漿質量預測模型。
  11. By applying spectra of matrix to the computation of panel data model, one can convert such computation as in - computability or complexity into computability or simplicity

    摘要將矩陣譜分解的方法運用於平行數據模型的計算中，使難以進行的計算變成可能、復雜的運算變得簡單。
  12. China sustained its record of criminal law enforcement against traffickers over the reporting period, though government data is difficult to verify and appears to conflate trafficking with human smuggling and illegal adoptions

    在本報告的涵蓋期2006年4月2007年3月內，中國仍舊用法律打擊人口販運活動，但是，政府提供的數據難以得到證實而且他們似乎把人口販運、偷渡和非法收養這些行為混淆在一起了。
  13. However, due to the disunity of corba product, dbms and interface, integrating different information from different departments seems difficult

    但由於企業在應用過程中corba產品的選用、數據庫系統、用戶界面都未統一，使得企業不同部門之間的信息集成出現困難。
  14. It is very important to estimate the basic parameters in helicopter preliminary design. neural network ( nn ) has the advantages in estimating accuracy and generalization over traditional methods. however, there are some difficulties in using nn, e. g., how to select a proper network structure and the number of hidden layers. in this paper, structure and connection weight of a three - layer nn are optimized by genetic algorithm, and the optimized network is applied to helicopter sizing. the proposed method can not only give an optimal nn structure and connection weight, but also reduce the prediction error and has the capability of self - learning when the latest data are available. furthermore, this method can be easily applied to helicopter design systems

    在直升機初步設計階段估算其基本參數是很重要的.神經網路的通用性和精度比傳統的估算方法有更多的優勢，但是在應用神經網路時存在如何選擇合適的網路結構和隱層節點數目等一些困難.應用遺傳演算法優化三層神經網路結構和連接權重，並將優化得到的網路應用於直升機參數選擇中.該方法不但可以給出一個最優的神經網路結構和連接權重，而且降低了估算誤差，具有及時應用最新數據學習的能力.此外，該方法易於在直升機設計系統中得到應用
  15. This is due to the following two facts : the ill - posedness induced by the incompleteness of the observation data can make the solving much more difficult ; in addition, the observation system involved multiple sensors are required to compensate the inaccuracy of the observation equipment, which will inevitably make the cost of the computation prohibitively expensive

    這是因為，一方面，由觀測數據的不完全性等因素導致的病態現象往往會給逆問題的求解帶來很大困難；另一方面，由於觀測設備自身性能和觀測環境等因素的限制，要獲得更高的估計精度往往需要用多個傳感器對目標進行觀測，這必將給求解逆問題帶來由於計算量過大而難以實現的困難。
  16. With four cy young awards between ' em, it was intricate stuff about pitching - - release points, stretch positions, unfolding front elbows

    在這兩位前賽揚獎投手中，這是對于投手這難以分析的數據，撇開這一點，參考其他數據，則會讓人覺得曲折離奇。
  17. Heat fluxes estimated from radiative temperature by this model is more accurate than other regular corrective methods. two - layer model has been proposed for many years but was difficult to apply in remote sensing because component temperature were unavailable in traditional thermal sensors. a new airborne multi - angular thermal sensor system and retrieved soil and canopy temperatures were used to solve two - layer model, and the simulated heat fluxes show much better accuracy than the results from one - layer model especially above dry surfaces

    雙層模型雖然提出很多年了，但在應用中一直存在信息不足，求解困難的問題，本文用最新多角度熱紅外遙感數據? ? ? amtis系統反演的組分溫度，首次實現了雙層模型在遙感中的應用，結果表明，在輸入參數精度相近的情況下，雙層模型模擬的通量誤差遠小於單層模型，尤其在土壤乾旱，表面溫度較高的地表，雙層模型的理論優勢在計算中表現得更加突出。
  18. Vector data information for c programmers can be hard to come by. the terse but thorough

    面向c + +編程人員的矢量數據信息很難獲得，簡潔而詳實的
  19. There are plentiful data produced in automobile insurance operations, which can be used to analysis, but increases greatly difficulties at the same time

    車險業務擁有海量的數據，一方面為保險公司進行數據分析提供了基礎；另一方面，也使得數據分析的難度大大增加。
  20. One is the hybrid programming technique for visual c + + and matlab with matlab engine, which is an inexpensive and time saving way and can be introduced into other systems. the other is the presentment of the soft - sensing model of sample interpolation and multi - step memory, which can also be introduced into other situations similar to sewage treatment

    另外，本文提出的「樣本數據插值和多步記憶」的軟測量模型結構對于類似於污水處理的工業過程，即目標參數難以用硬儀表在線測量且可得數據樣本間隔時間長、前後相關性強的工業過程之軟測量模型構建，也頗具參考價值。
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