d data set 中文意思是什麼

d data set 解釋
三維數據集
  • d :
  • data : n 1 資料，材料〈此詞系 datum 的復數。但 datum 罕用，一般即以 data 作為集合詞，在口語中往往用單數...
  • set : SET ＝safe electronic transaction 安全電子交易〈指用信用卡通過因特網支付款項的商業交易〉。n 【埃...
  1. The application study of improved bp algorithm in sediment science - using two set of experiment data mentioned above, the value of d _ ( cmax ) and gross bed - load transport rate in non - uniform sediment with a wide distribution in flume experiment of stead sediment transportation have been forecasted by ann generator

    改進bp演算法在泥沙科學中的應用研究?將收集整理后的兩次水槽試驗實測資料作為數據來源，利用生成器生成網路對水槽平衡輸沙試驗中的最大起動粒徑和總輸沙率進行預測。
  2. The algorithm features full utilization of different installation positions and different angular resolutions of the two lrfs by assigning different tasks to them. the top lrf was used to set up the initial trace of new obstacles recognized from the result of d - s evidence theory based multi - period data fusion and the bottom one was used to maintain tracking of obstacles, providing relatively accurate positions of the obstacles

    該演算法的特點在於充分利用了兩個激光測距雷達的不同安裝位置、不同解析度對障礙檢測造成的有利條件，將多目標跟蹤的理論和技術融入障礙檢測的軟體框架中，並結合d - s證據理論融合多測量周期的識別結果，由頂雷達建立障礙的初始航跡，而底雷達進行航跡的跟蹤和維持。
  3. The ids works by two way, misuse detection and anomaly detection, misuse detection flags an intrusion on intrusion signature, this kind of detecting technic can be realized much more easily, and much more accurate, but it can not find some intrusiones that have been disguised or new kinds of intrusion. the anomaly detection can detect in more wide field, anomaly detection can compare new statistic data with average record, then anomaly record will be found, but it ' s more difficult to set a threshold, if the threshold is too big, some intrusion may be put through, if the threshold is too small, the ids will give more false positive alarm, and the threshold will be different with different people or different period, so the ids just simply show us their suspicious record, the administrator or expert will be in duty to analyze this record and give conclusion, the ids give more alarm than it should, leave us more detection record to analyze, and this is a hard work, we can not distinguish an intrusion or not if we analyze only one record, but we can judge if we find the relation among mass detection evidence. in this article, we try distinguish an intrusion using d - s theory ( proof theory ) instead using manual work, the ids will be more helpful and efficient

    濫用檢測採用的是特徵檢測的方法，實現較為簡單，判斷的準確性較高，但是不能判斷一些經過偽裝的入侵或特徵庫中尚未包含的入侵，異常檢測能夠根據以往記錄的特徵平均值，判斷出異常情況，但是對于異常到什麼程度才視為入侵，這個閥值非常難以確定，閥值設定的太高，有可能漏過真正的入侵，如果設定的閥值太低，又會產生較高的誤警率，而且這個閥值因人而異，因時而異，因此現在的入侵檢測系統把這部分異常記錄以一定的形式顯示出來或通知管理人員，交給管理人員去判斷，而這些ids系統難以判斷的記錄，如果對每個證據單獨地進行觀察，可能是難以判斷是否是入侵，而把許多先後證據關聯起來，專家或管理人員根據經驗能夠判斷訪問的合法性，本文試圖引入人工智慧中證據理論的推理策略和示例學習方法，代替人工檢查分析，可以提高效率，降低誤警率，並可以對一個正在進行得可疑訪問實現實時檢測，通過搜索及時判斷，及時阻斷非法訪問，比事後得人工處理更有意義。
  4. Using latest visual software idl ( interactive data language ) and combining trigrid function with triangulate function in idl, regular network terrain model and 3 - d shallow and deep sliding surface model of zhafangping landslide body based on delaunay triangular network is set up. it makes the sliding surface turn from " recessiveness " into " dominance ", and gets numerous different three - dimensional cubic chart, contour topographic map, the combine model of terrain model and contour topo - graphic map. and every visual model has analysed and compared in detail

    利用可視化軟體idl中的triangulate函數和trigrid函數相結合，建立了基於delaunay三角網的榨坊坪滑坡體規則格網地面模型和淺層、深層滑動面三維可視化模型，實現了該滑坡體的三維模擬與再現，使滑動面由「隱性」變為了「顯性」 ，且獲得了眾多不同角度的三維立體圖、等高線地形圖和地面模型與等高線地形圖的組合圖等，並對各可視化模型進行了詳細地分析與比較。
  5. On the basis of displacement - time series of the slope, a nonlinear dynamic model is set up according to backus generalized linear inversion theory in this paper. due to the equivalence beween autonomous gradient system and catastrophe model, a standard cusp catastrophe model can be obtained through variable substitution. the method is used in analysis of displacement data of huangci landslide and wolongsi landslide and in understanding how slopes evolve before sliding. the result shows that the nonlinear dynamic model can make satisfactory prediction result. is it most important that there is a sudden fall of d, which indicates the occurrence of catastrophe ( when d = 0 )

    研究表明，滑坡變形失穩過程具有混沌和分維特性，可以用分形理論來研究滑坡預測問題，基於對任一連續函數，至少在較小的鄰域內可以用多項式任意逼近的數學理論，運用改進的backus廣義線性反演理論，以斜坡位移時間序列為基礎，反演了斜坡演化的非線性動力學模型。並利用自治梯度系統與突變模型的等價性，通過變量代換得到標準的尖點突變模型。
  6. An significant symbol has been used to determine the technique of 3 - d discontinuities network modeling of rock mass is good or not, which is to check whether the model can reappear the reality situation of rock mass or not, in order to make the 3 - d network model to meet the need of the actual rock engineering, the methods to verify the result of the modeling are required, one of the method to be used is to compare the figures between the section of the numerical model and the sampling window of in - situ model, the second method to be used is verify the data set between the numerical model and field data, only if the verification obtained a good precision, then the model can be considered as a efficiency model, and it can be applied into the actual rock engineering

    摘要巖體隨機不連續面三維網路模擬技術成熟與否的一個重要標志就是最終的網路模型是否能夠較真實地再現巖體的實際情況，為了使三維網路模型的結果能夠真正地應用於實際工程，就必須對模擬的結果進行必要的檢驗，檢驗的辦法就是將模擬出的模型剖面圖形與原型測量窗口的圖形進行圖形對比，或者將原型的觀測數據與模型的測試數據進行數據對比，當這種檢驗達到精度時，模擬出的模型為有效模型，可以投入工程實際應用。
  7. The predictions have shown a good agreement with the experiment results. the creep testing method was studied thoroughly in this paper. the whole creep testing system is developed by creep machine, extensometer, resistance strain gage, a / d translation board, computer and a set of software which can collect creep data automatically

    本文對樹脂基三維編織復合材料的蠕變測試方法進行了深入研究，採用自行研製的蠕變機，利用引伸計、電阻應變儀、 a d轉換器、計算機等儀器，自行編制的蠕變數據自動採集軟體形成了一套蠕變測試系統。
  8. The magic of plotting graphs lies in being able to scale a given data value from one range to another ; that is, given a set of values like 10, 20, 30, you should be able to decide exactly which points x and y coordinates on a 2 - d plane represent the data values 10, 20, and 30

    繪圖的奇妙之處在於能夠將某一個給定數據值從一個范圍按比例縮放到另一個范圍中，也就是說，如果給定一組值，如{ 10 ， 20 ， 30 } ，那麼您應該能夠確定2 - d飛機上具體哪些點（ x坐標和y坐標）表示的是10 、 20和30這些數據值。
  9. Fourthly, summarized the methods and the principals for pre - stack and post - stack 4 - d seismic data processing ; proposed the criteria for seismic data process ; built a set of processing flow. through the real data processing ( 029 fault block ), obtained reasonable results. the processed result was approved by the further production well

    第四，總結了迭前、迭后四維地震資料處理的方法與原理，針對高29斷塊的實際資料，提出了處理準則，建立了處理流程，獲得了良好的處理效果，並得到開發開發調整井的證實。
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