In the preprocessing stage the method of user and session identification often adopt heuristic algorithm for the being of cache and agent . this induce the uncertainty of data resource . the cppc algorithm avoid the limitation and has no use for complicated hash data structure . in this algorithm , by constructing a userld - url revelant matrix similar customer groups are discovered by measuring similarity between column vectors and relevant web pages are obtained by measuring similarity between row vectors ; frequent access paths can also be discovered by further processing of the latter . experiments show the effectiveness of the algorithm . in the fourth part , this thesis bring some key techniques of data mining into web usage mining , combine the characteristic of relation database design and implement a web usage mining system wlgms with function of visible . lt can provide the user with decision support , and has good practicability 本文算法避免了這個缺陷,且不需要復雜的hash數(shù)據(jù)結構,通過構造一個userid - uel關聯(lián)矩陣,對列向量進行相似性分析得到相似客戶群體,對行向量進行相似性度量獲得相關web頁面,對后者再進一步處理得到頻繁訪問路徑。實驗結果表明了算法的有效性。第四是本文將傳統(tǒng)數(shù)據(jù)挖掘過程中的各種關鍵技術,引入到對web使用信息的挖掘活動中,結合關系數(shù)據(jù)庫的特點設計并實現(xiàn)了一個具有可廣西人學頎士學位論義視化功能的web使用挖掘系統(tǒng)wlgms 。
Orthogonal matrixes have special structures , and every row vector of them can be taken as a plot , which may be parametrized in n - sphere space . through the research of structures of orthogonal matrixes , the writer finds a parametrized matrix , which can express all the orthogonal matrixes . through analysing uprightness between related high - order planes and the number of required parameters , we get the maturity of this method 自然的,這些點可以用其球坐標,即與各坐標軸的夾角來參數(shù)化,作者通過觀察正交矩陣的幾何結構,最終找到了任意維數(shù)的隨機正交矩陣的參數(shù)表示方法,通過分析相關超平面之間的垂直關系和參數(shù)化正交矩陣需要的參數(shù)個數(shù),論證了這種表示的完備性。
In the subsystem of signal processing , digital sidelobe cancell block , digital pulse compress block , adaptive clutter canceller block , doppler filter and constant false alarm rate block are respectively discussed and set up . in signal processing , data in the same coherent processing interval form a matrix , and the data processing was completed based on the matrix . data are processed with the row vector or column vector respectively when needed 在信號處理分系統(tǒng)中,將脈沖壓縮得到的數(shù)據(jù)在各個相干處理區(qū)間進行處理,將一個相干處理區(qū)間的數(shù)據(jù)按照不同的脈沖重復周期和不同的距離單元排列成一個矩陣,當需要實現(xiàn)數(shù)字脈沖壓縮時對矩陣的各行(同一個脈沖重復周期的數(shù)據(jù))進行處理,當需要實現(xiàn)多普勒濾波時,就對矩陣的各列(同一個距離單元的數(shù)據(jù))進行處理。
row: n. 〔口語〕吵嚷,吵架,爭吵;譴責;打架; What ...vector: n. 1.【數(shù)學】向量,矢量,動徑。 2.【航空】飛機航 ...dimensional row vector: 維行向量n dimensional row vector: n維行向量row-major vector storage: 主行向量存儲器row-ordered image vector: 行序圖象向量in a row: 成一長行, 連續(xù), 一連串; 連續(xù),一連串; 連續(xù)不斷地,接連; 連續(xù)的; 連續(xù)地; 排成一排(行); 站成一排row: n. 1.(一)排,(一)行;一排(座位);行列,橫列。 2.(兩旁或一旁有房屋的)路,街〔英國常用作某種行業(yè)占用的街道、地區(qū)〕。 3.【無線電】天線陣。 4.〔the R-〕〔英國〕=Rotten R- 倫敦海德公園中的騎馬道。 It doesn't amount to a row of beans. 〔美、俚〕這實在不算什么。 at the end of one's row 〔美國〕淪落不堪;萬不得已。 have a hard [long] row to hoe 〔美國〕有麻煩事,有巨大任務。 hoe one's own row 〔美國〕做自己的事情,自掃門前雪。 in a row 成一排;連續(xù),一連串。 in rows 排列著。 in the front row 在頭排;〔美國〕勝人一等的,優(yōu)秀的。 vt. 使成行,使成排 (up)。 vt. 1.劃(船),用…劃,劃運;擺渡。 2.劃船去參加(競渡等);賽劃。 Shall I row you to the shore 要我來把你劃運到岸邊嗎? The boat rows six oars. 小艇用六把槳劃。 look one way and row another 〔俚語〕看東劃西,聲東擊西。 row a fast stroke 拼命劃。 row a race 競渡,賽艇。 row bow [stroke, five] (in the boat) 擔任(小艇)前槳手[整調(diào)手,五號劃手]。 rowdown 劃著趕上。 rowdry 不濺水地劃;空劃。 row in the eight 作八人小艇選手出場。 row in the Oxford boat 作牛津大學選手去賽艇。 row in the same boat 同劃小船;同干一工作,有同一處境,抱同樣見解;風雨同舟。 row out 使劃累。 row over 劃贏。 row 30 to the minute 一分鐘劃三十次。 row up Salt River 〔美國〕使反對黨失敗。 row wet 水花四濺地劃。 vi. 1.劃船,蕩槳,搖櫓。 2.參加競渡[賽艇];賽劃。 n. 劃,一劃,劃船,劃船旅行;劃程。 n. 〔口語〕吵嚷,吵架,爭吵;譴責;打架; What is the row? 吵嚷些什么? 怎么啦? We've had awful rows now and then. 我們常常爭吵的很厲害。 get into a row 挨罵,被斥責。 have a row with 和…爭吵。 Hold your row! 〔口語〕住口! 別吵! kick up a row=make a row 起哄,吵鬧;抗議。 make a row about 因…譴責。 pick a row with 和…爭吵。 vt. 〔口語〕責罵,申斥,責備。 row sb. up 〔美國〕責備某人。 vi. 〔口語〕爭吵,吵鬧。 to row: 劃船no vector: 無雷達引導s-t vector: s-t向量t vector: t向量vector: n. 1.【數(shù)學】向量,矢量,動徑。 2.【航空】飛機航線;航向指示。 3.【天文學】幅,矢徑。 4.【生物學】帶菌者[體],傳病媒介。 vt. 【航空】(對飛行中的飛機)指示航向。 vi. 【航空】電(磁)波導航。 row by row: 一排一排row 1, row …row: 二十排row row row the boat: 劃、劃、劃小船row row row you boat: 劃船歌row row row your boar: 劃船歌row row row your boat: 劃船; 劃小船; 小小帆船row, row,row your boat: 劃船歌row,row,row your boat: 劃,劃,劃你的船; 劃船歌; 劃你的小船row,row,row,your boat: 劃船歌row by row system: 逐行讀冉式row row your boat: 劃船歌row-by-row method: 逐字逐句法