least squares calculation 中文意思是什麼

least squares calculation 解釋
最小二乘方計算
  • least : adj （little 的最高級，比較級為 less 或 lesser）1 最小的，最少的 （opp most）。2 最不重要的，地位...
  • squares : 方鋼
  • calculation : n. 1. 計算，計演算法。2. 推定，預測。3. 深思熟慮，精打細算；慎重的計劃；算計。
  1. The photon spectrum data that are used in the calculation for translating the absorbed dose to the photon fluence have been obtained by the experimental method with a 12mv pulse accelerator and the iterative least - squares data analysis technique

    為此，利用穿透系數數值分析的疊代最小二乘法對12mv脈沖加速器的軔致輻射譜進行了實驗測定，並在同樣的幾何條件下，用m - c方法對其進行了計算。
  2. Works on the bending roll system of four - roll rolling mill, the workroll shape variation caused by the force of bending roll and the contact stress between rolls was researched with the fem software ansys, the maximum deformation of the work roll was calculated, and the curve of the gap adopting the least - squares method was fitted, which set the base of the further calculation of load - gap shape

    摘要以四輥軋機的彎輥系統為研究對象，利用有限元分析軟體ansys研究彎輥力和輥間接觸應力引起工作輥形狀的變化，計算工作輥彎曲的最大變形量，並用最小二乘法對輥縫曲線進行擬合，為進一步計算有載輥縫形狀提供可靠的理論依據。
  3. Researches on how to develop all digital photogrammetry sof tware based on general digital camera. and a mathematical model for softwares t wo main parts, direct linear transform ation and least squares image matching, is given, a physical model for examining the softwares entire performance is also given. the results of numerical imitation and physical models calculation show that the software development a nd research in the above two parts are successful

    給出了普通數碼相機數字攝影測量軟體主體部分的開發思路，對軟體中的兩大主要部分? ?直接線性變換與影像匹配兩部分分別給出了數學模型，為檢驗軟體的整體性能，又給出了一個物理模型.通過數值模擬及物理模型的計算結果，表明軟體在以上兩部分的開發研究是成功的
  4. Combining with practical investigation and analysis, the author presented the fitting equation of the second non - uniform coefficient in which the method of least squares error approximation with the power index regression is used and proposed a modified formula for flow rate per second calculation to precisely determine the size of pipeline and to make the design advanced in technology and reasonable cost

    本課題分析了室外和室內的設計流量公式，通過調查、實測本地區的水量資料，運用相關數學方法分析，提出了適合小區給水管網採用的流量公式。
  5. The paper carries on the research of network topology, algorithm of state estimation and detection and identification of bad data, and applies the method of tracking search to network topology, semi - dynamic optimization to node numbering, algorithm of weighted least - squares with constraints to state estimation and rn to detection and identification of bad data. the calculation is made for jinzhong ' s electrical network according to its circumstances in shanxi

    本文對電力系統狀態估計理論中網路拓撲分析、狀態估計演算法、不良數據的檢測與辨識進行了研究，採用獨立於結線方式的跟蹤搜索法進行網路拓撲分析、半動態優化技術進行節點優化，帶約束加權最小二乘法進行狀態估計計算，標準化殘差進行不良數據的檢測與辨識。
  6. Least squares regression is vulnerable to singular point ; least absolute deviations can overcome this shortcoming but difficult in calculation

    摘要採用最小二乘法進行回歸分析，容易受到奇異點的影響；最小一乘法雖能很好地克服這一缺陷，但又存在計算困難。
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