theory n. 1.理論,學理,原理。 2.學說,論說 (opp. hypothesis)。 3.推測,揣度。 4.〔口語〕見解,意見。 the theory of two points 兩點論。 Darwin's theory of evolution 達爾文的進化論。 theory of equations 【數學】方程論。 theory of everything 【物理學】(把相對論、量子論和宇宙大爆炸理論都包括在內的)萬用理論。 theory of relativity 【物理學】相對論。 the atomic theory 原子說。 Our scheme is good both in theory and in practice. 我們的方案在理論上和實施上都是好的。 combine [separate] theory with [from] practice 理論結合[脫離]實際。 My theory is that we must bring new blood into the Institute through appointment of younger men to important positions. 我的意見是我們學院應該通過重用年輕一些的人來注入新的血液。 theory of games 博弈論,對策論,權衡利弊得失的形勢分析。
Chapter 2 analyzes parallel process technology ' s actuality , the requirement of real - time process , and mostly guidelines of parallel process performance . chapter 3 discusses imaging algorithm - - - - - - chirp scaling algorithm theory as well as realization of ideal point target ; and then discuss the scalar of data and operation . chapter 4 discuss the fft and distributed matrix transposing , mostly about ( 1 ) discussed how to realize parallel fft , and evaluate the preformance of parallel fft ; ( 2 ) discuss another step ' s - - - - - - matrix transposing - - - - - - realization can divided into three steps : distributing , renewedly distributing and local transposing of matrix , and then discuss the time of process in detail 第四章分別研究了cs算法中的fft變換和分布式矩陣的轉置問題,主要有: ( 1 )對cs算法中運算量最大的步驟fft變換進行了并行性的提取,并對并行fft變換的算法性能進行了評估; ( 2 )分析并研究了cs算法中另一不可或缺的步驟? ?矩陣轉置問題,提出矩陣分布、重新分布和局部轉置來實現矩陣轉置的并行化,并詳細分析了矩陣轉置的時間耗費問題。
We also place emphasis on research of apriori and fp - growth algorithm and compare the performance of two algorithms . secondly , we do research on concepts of structured and nonstructured data , actual state and problems of tree structure mining , and freetreeminer algorithm theory . we also study canonical form and pre - processing technologies of free - tree , concepts and properties of closed and maximal tree , and pruning , growing and mining of tree structure 其次,研究了結構化與非結構化數據的基本概念、樹結構挖掘的研究現狀、現有樹結構挖掘技術存在的問題、 freetreeminer算法及其基本思想,重點研究了free樹的規范化和預處理技術、封閉頻繁子樹和最大頻繁子樹的概念和性質、樹結構的剪枝和生長技術、樹結構的挖掘技術。
It ' s a pity that although there are many papers and articles focused on data mining published every year , most of them deal with data mining concept and abstract algorithm theory , it is hardly to see their real implementation and application , in this context , when i was in my graduate exercitation in a company in beijing , which focus on developing supermarket software , i joined and completed an olap ( online analytical processing ) project , merchandise analysis and sale report system , which based on microsoft analysis service and microsoft sql server . i also design and implement three important algorithms : merchandise association rule algorithm based on multi - level merchandise category , supermarket member customer shopping frequent sequence generating algorithm , customer classification ( decision tree ) algorithm which based on information entropy and conditional probability tree , and they all achieve expected result 本文作者在實習期間,參與并完成了基于微軟分析服務器的銷售分析與報表系統;并在公司即將開始的數據挖掘項目中,完成了多個重要算法的設計和c + +程序實現:基于多層分類商品樹的商品關聯規則算法,會員顧客的購物頻繁序列模式產生算法;基于信息熵理論和條件概率樹的會員顧客分類(決策樹)算法,并分別使用數據進行了測試,取得了較好的結果。
Then it reviews the research results of the distribution management globally and analyses the questions and research state of the distribution management information system , the distribution planning investment project , the distribution network reconfiguration , the same trade comparing of the distribution . however , due to the wide - range , fuzziness and risk character of the distribution management , based on fuzzy set and genetic algorithm theory , the major contents and research results are as follows : 1 . the multi - object group decision integration model research and application based on fuzzy set theory 本文介紹了我國配電管理所面臨的電力企業改革和用電環境的變化,回顧了國內外在配電管理系統方面取得的研究成果,具體分析了配電管理信息系統,配電規劃投資方案,配電網絡重構,配電同業比較存在問題和研究現狀,針對配電管理的模糊性,風險性和全局性,采用模糊集分析和遺傳算法理論,提出了本文的研究內容。