log-transformation 中文意思是什麼
log-transformation
解釋
對數變換- log : n 1 原木，圓木，乾材。2 測程儀，計程儀。3 航海日誌，（飛行員用的）航海日誌；旅行日記。4 〈英國〉...
- transformation : n 轉變，變化；變形；【生物學】（尤指昆蟲的）轉化，變態，改造，改革；變質；【數學】變換；【電學】...
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One retrieval method using rst invariant features based on lpm ( log - polar transformation ) transformation is proposed
提出一種基於對數極坐標變換lpm （ log - polartransformation ）的不變特徵圖像檢索演算法。 -
This technique avoids computing inverse log - polar mapping ilpm to preserve the quality of the watermarked image, and avoids exhaustive search to save computation time and reduce false detection. experimental results demonstrate that the digital watermarking technique is invariant and robust to rotation, scaling, and translation transformation
在研究中發現，圖像在空域中的旋轉對應于該對數極坐標域中沿著角坐標的位移圖像在空域中的按比例縮放對應于該對數極坐標域中沿著對數半徑坐標的位移而圖像在空域中的水平位移對該對數極坐標域沒有影響。 -
Since the source document is the log file, no information is lost in the transformation, and it is trivial to re - create exactly the original format from the xml
因為源文檔是日誌文件，在轉換中無信息丟失，而從xml重新創建原始格式的文檔非常繁瑣。 -
This essay first dicussed the key steps of preprocessing in web log mining, which include data abstract, data cleaning, user and session identification and path completion etc. especialy we proposed the algorithm of the web log data preprocessing include frame page. and secondly we discussed the technology of building an adaptive web site, include log data cluster mining, user visiting pattern learning, site structure transformation and presentation etc. ; and we proposed indual user log visiting pattern, user model onling learning algorithm, index pages synthesising algorithm, site structure transformation and presentation algorithm and so on
本論文首先討論了web日誌挖掘預處理中的各步驟：數據抽象、數據清洗、用戶與會話識別、訪問路徑補全，給出了每一步驟的演算法實現；並特別討論了含有frame頁的日誌數據預處理過濾演算法。其次討論了構建自適應站點技術，包括日誌數據聚類挖掘、用戶訪問模式學習、站點結構轉化與呈現等；提出了單用戶日誌訪問模型，給出了用戶模型在線學習演算法、索引頁面綜合演算法、站點結構轉化及呈現演算法等。 -
And finally we designed an adaptive web site system model, which include web data mining algorithm configuring module, web log mining preprocessing module, web log mining module, web site structure transformation and presentation module, system management module etc. , and designed and then realized the experimental prototype awss2004 based on this system model
最後給出了自適應站點系統模型，包括： web數據挖掘演算法表示裝配模塊、 web日誌數據挖掘處理模塊、 web日誌挖掘模塊、站點結構轉化及其呈現模塊、系統管理配置模塊等，並設計實現了基於該系統模型的實驗原型系統awss ~ （ 2004 ） 。
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