bad data 中文意思是什麼

bad data 解釋
不良數據
  • bad : adj （worse worst ）1 壞的，惡的，歹的，不好的，不道德的。2 不正確的，錯誤的。3 不中用的；低劣的...
  • 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...
  1. The article investigates shanghai list companies from 1998 year to 2002 year ' s data, and gets two models by the methods of correlation and step - wise regression. by comparing two models " s response to good and bad earnings announcement in the difference level of market, the conclusion of this article is : ( 1 ) the price response to bad and good earnings announcement is asymmetry ; ( 2 ) the price response to bad and good earnings announcement changes as the relative level of the market changes ; ( 3 ) the notion that as the market rises, the asymmetry in the response to good and bad news becomes relatively more pronounced for glamour stocks is not applied to our security market

    通過對1998年至2002年所有滬市上市公司五年的數據進行實證分析，運用相關性分析、多元逐步回歸等方法，得到兩個多元回歸模型，對比兩個模型在不同市場狀態下的反應，得到了以下結論： （ 1 ）市場在年報好壞盈餘信息的公布情況方面反應是不對稱的； （ 2 ）市場對好壞盈利信息反應的不對稱性的程度主要依賴于整個市場所處的狀態； （ 3 ）隨著市場不斷好轉，魅力股對壞盈利信息的反應並沒有變得更強烈，同時對好壞盈利信息的反應差別也不大。
  2. The result is, potentially, bad data

    結果可能造成錯誤的數據。
  3. Handles bad data

    能夠處理破壞的數據
  4. The movie / game industry also spreading false file of popular game / movies which contain bad data

    電影/游戲廠商也會對一些熱門下載故意散播含有壞塊的假數據。
  5. Then the bad data could appear on a page, or in a database, or the inserted script could run

    然後錯誤數據便可能出現在頁或數據庫中，插入的腳本也可能運行。
  6. Lastly, several conclusions on bad data detection and identification for distribution system are given

    最後，得到了配電網路不良數據檢測與辨識的若干結論。
  7. This flexibility, however, comes at a big cost - your system is more vulnerable to bad data

    然而，獲得這種靈活性所付出的代價相當昂貴您的系統會更容易受到壞數據的攻擊。
  8. There is a staggering amount of bad data on adultery, but the figures we can trust come largely thanks to hiv

    有關通姦的不可信數據數量驚人，但我們可以置信的數據，基本上還是多虧了hiv 。
  9. Abstract the problem about bad data detection and identification in distribution system state estimation is focused in this thesis

    本文著重分析了配電網狀態估計中的不良數據檢測與辨識的問題。
  10. According to probability analyzing, this method can get rid of a part of bad data enhancing the reliability of data greatly

    通過概率分析，該方法可將部分錯誤數據剔除，大幅度提高數據的可靠性。
  11. There are kinds of contents, for example state estimation, bad data identification and network wiring identification

    發展至今，很多方面，例如電力系統的實時狀態估計已在很多地區和國家的電網中運行成功。
  12. The proposed methods can be used as data preparation techniques to detect bad data and fill the blank with a more accuracy value in an initial series. the modeling accuracy of grey system is greatly improved by such methods

    2 、針對序列中含有空穴或不良數據的情況，將參數估計與不良數據辨識理論作為數據預處理技術應用於灰色系統建模，使得模型預測結果更為精確。
  13. Then, based on the estimation algorithm decomposing the measurement of voltage scope and power scope, the problems of the location of transformation tap settings and the tide current estimation of zero - impedance branches in state estimation are solved ; and detection and identification of bad data in state estimation are deduced and stimulated, also a hybrid method of detection and identification is brought forward

    隨后，在基於分解電壓測量量和功率測量量的估計演算法的基礎上，對狀態估計中經常出現的變壓器抽頭位置問題和零阻抗支路潮流估計問題進行了分析和處理；對狀態估計的不良數據檢測與識別方法進行了推導和模擬，並提出了一種混合檢測方法。
  14. Firstly, the square sum of estimate error is only half of it " s original square sum of measurement data, the precision of result is highly enhanced. secondly, the precise estimate data takes place of bad data. thirdly, this method estimate some data that the power system needs but the measure system do not give

    從估計結果來看，一是在不良數據不計在內的情況下，估計值的誤差平方和僅是原始測量數據誤差平方和的一半左右，在準確性上有較大的提高；二是用準確的估計值代替了不良數據；三是準確地估計出了一部分電網調度工作需要，而又沒有進行測量傳送的數據。
  15. For substation layer, a feasible strategy for bad data grading handling and a practicable method to establish the uniform clock for the power network were put forward

    對于廠站層，論文提出了對不良數據分級處理和建立全網統一時鐘的策略和方法。
  16. This algorithm improves confidence in se by estimating parameters and states at the same time. simulation results on test power systems which range in size from 4 to 118 buses, have shown the virtues as follows : getting unbiased estimation without detecting and identifying bad data in measurements ; solving state and parameter estimation for power system with good convergence and excellent robust property ; increasing the numbers of iterations a little bit with the test systems expanded ; estimating many transformer taps simultaneously and remaining the main state estimation ; keeping the estimated relative error within + 0. 1 % and processing efficiently equality constraints and ill condition with polynomial complexity

    對ieee ? 4 118節點系統和廣西主網進行的模擬結果表明： l1范數估計具有不良數據拒絕特性，當量測量中存在不良數據時，該演算法在不經檢測和辨識不良數據情況下仍是無偏估計，具有良好收斂性，所需迭代次數隨著問題規模擴大而增長極小；能夠同時估計多個變壓器抽頭，並保持狀態估計主體；在滿足可觀測性條件下，估計的相對誤差保證在0 . 1以內；能夠有效處理等式約束和病態條件，並具有多項式時間性。
  17. Assessment scale good pass bad ; data from external sources for benchmarking ; against overall performance and specific indicators ; etc

    考慮因素：評估等級良好合格差劣外界提供的評核標準數據針對整體表現及個別參數等
  18. Consider : assessment scale good pass bad ; data from external sources for benchmarking ; against overall performance and specific indicators ; etc

    考慮因素：評估等級良好合格差劣外界提供的評核標準數據針對整體表現及個別參數等
  19. The power system state estimation involves network topology, network observability analysis, state estimation and detection and identification of bad data

    電力系統狀態估計的內容包括：網路拓撲分析、網路可觀測性分析、狀態估計、狀態估計潮流、不良數據檢測和辨識等。
  20. 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。
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