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Work in this paper focuses on the data mining from chromatographic retention index data. A retention index database that contains about 50000 records of retention index is firstly established. Projection pursuit technique is then utilized to do data mining upon the data in order to find out some valuable information about the relationship between the retention indices and structural descriptors. A novel algorithm for projection pursuit is developed in this work. Samples of alkane, alkene and cycloalkane are investigated.

中文題名化學數(shù)據(jù)挖掘新算法和定量構性關系基礎研究副題名外文題名 New methodology in chemical data mining and foundational research on QSPR 論文作者杜一平導師梁逸曾學科專業(yè)分析化學研究領域\研究方向化學計量學學位級別博士學位授予單位湖南大學學位授予日期2002 論文頁碼總數(shù)115頁關鍵詞定量構性關系化學計量學數(shù)據(jù)挖掘館藏號BSLW /2003 /O6 /2 化學數(shù)據(jù)挖掘正逐漸引起化學家們的關注中文无码视频h。

And the efficiency and precision of three methods have been analyzed and contrasted by using the CRISP_DM (Cross-industry Process for Data Mining) frame and the step of business understanding, data understanding, data preparation, modeling evaluation and development.

以CRISP_DM(Cross-industry Process for Data Mining)方法論為建模過程框架好色资源站，按照商業(yè)理解性交舔毛片、數(shù)據(jù)準備、建立模型夜色樱花网站、模型評估、模型發(fā)布的步驟国产亚洲欧美日韩久久图片，在建模過程中對三種算法的效率和精度進行分析和對比AV黄片在线免费。

From October 16th to 17th, 2006, lead by the subdecanal Hong Xiaowen, the five visitors from Microsoft Research Asia came to visit Nanjing University. On the afternoon of 16th, Doctor Ma Weiying's lecture "Face Recognition and Computer Vision Research at Microsoft Research Asia" was held in room 109 of the technology building in Nanjing University. The room was full of people at that point. On the afternoon of 17th, Doctor Ma Weiying's lecture "Web-scale Data Mining for Search" was held. At the same time, hosted by Gong Yongen, the schoolfellow of Nanjing University and software development engineer in searching technology center of MRA, the experience sharing meeting was held. They won the same nice echo.

2006年10月16日至17日，以洪小文副院長為首的微軟亞洲研究院訪問團一行5人訪問南京大學国产13页。10月16日下午丝袜老熟女自慰网站，湯曉鷗博士學術報告《Face Recognition and Computer Vision Research at Microsoft Research Asia》在南京大學科技樓109報告廳進行，現(xiàn)場座無虛席国产一级一级一级污黄。10月17日下午国产三级视频在线，馬維英博士學術講座《Web-scale Data Mining for Search》以及南京大學校友、微軟亞洲研究院搜索技術中心軟件開發(fā)工程師龔永恩主持的校友經(jīng)驗分享會同時進行热热无码，同樣取得了熱烈的反響欧洲不卡毛片无码视频在线播放。

data information system：數(shù)據(jù)信息系統(tǒng)

數(shù)據(jù)挖掘系統(tǒng):Data Mining System | 數(shù)據(jù)信息系統(tǒng):data information system | 流式數(shù)據(jù)庫系統(tǒng):data steam system

Data Warehousing：數(shù)據(jù)倉庫

11.9.8 數(shù)據(jù)倉庫(Data Warehousing)和數(shù)據(jù)挖掘(Data Mining)數(shù)據(jù)挖掘(Data Mining)是對數(shù)據(jù)倉庫中的數(shù)據(jù)進行進一步處理以得到更有用信息的過程. 數(shù)據(jù)挖掘工具被用來發(fā)現(xiàn)數(shù)據(jù)的聯(lián)合和相關性來生成元數(shù)據(jù)(Metadata). 元數(shù)據(jù)可以單個信息子集中隱含的相關性.

KED7 Data Mining: Display Form：數(shù)據(jù)挖掘: 顯示表格

KED6 Data Mining: Change Form 數(shù)據(jù)挖掘: 更改格式 | KED7 Data Mining: Display Form 數(shù)據(jù)挖掘: 顯示表格 | KEDA Export Summarization Level 輸出匯總層次