特徵選擇過程 的英文怎麼說

中文拼音 [tèzhǐxuǎnzháiguòchéng]
特徵選擇過程 英文
feature selection process
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 徵 : 名詞[音樂] （古代五音之一 相當于簡譜的「5」） a note of the ancient chinese five tone scale corre...
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 特徵 : characteristic; feature; properties; aspect; trait
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  • 過程 : process; procedure; transversion; plication; course
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. Feature selection, as a preprocessing step to data mining, is effective in reducing dimensionality, removing irrelevant data, increasing learning accuracy, and improving result comprehensibility

    屬性選擇作為數據挖掘過程中的一個重要步驟可以有效地降低特徵維度，去除不相關屬性，提高模型準確率以及增加模型的可解釋程度。
  3. We hold that the integrate effect consists of two parts : 1 + 1 > 2 and a + b = c, in terms of math : here x1, x2, . . . , xn : integrate units s : functions of new system what features an integrated system are subjective initiative, non - linear function, dynamic connection, sub - system uncertainty, selective competition. the basic factors of integration are integrate context, integrate units, integrate interface and environment, which form the integration condition respectively the basic integrate patterns covers point - to - point, pipeline and hub

    首先，深入探討了集成的內涵，即集成是指為了實現某一目標，在一定的集成環境中，若干集成單元動態地集合成一個泛邊界狀態的有機整體的過程，指出集成效應的數學解釋除了1 + 1 2外，還應該包括： a + b = c ，即若以x _ 1 ， x _ 2 ， … … ， x _ n代表集成單元， s代表集成后新系統的總功能，那麼其特徵有：主體行為性、功能非線性、關系動態性、單元泛化性、選擇競爭性；集成的基本要素包括集成背景、集成單元、集成界面和集成環境等四要素；基本模式有點到點模式、管線型模式和集線器型模式；基本條件有集成背景條件、集成單元條件、集成界面條件和集成環境條件。
  4. The initial vsd process uses two main characters, the average instantaneous energy and the average instantaneous zero crossing rate ( zcr ). to make the first recognition for the start and the end, the emphasis of which is to select the appropriate value of the threshold and the length of frame. in the final vsd process, the author compares several characters and confirms the new recognition character

    初步分段過程使用了能量和過零率這兩個主要特徵進行端點檢測，重點是合理選擇兩個重要參數? ?門限和統計幀長度的取值；在最終分段過程中，筆者首先通過比較幾種特徵的識別效果，選擇卡爾曼濾波參數作為再次分段的識別特徵，還提出了一種新的識別特徵? ?周期性緩變特徵，使用這兩個特徵分別在子語音段內進行端點檢測。
  5. The case study showed that the comprehensive environmental analysis of urban spatial distribution, industrial distribution, industrial structure, and transport development was the key feature of this kind of sea, interactive assessment mode helped to integrate environmental considerations into decision - making process effectively, and the assessment indicators should be available and examinable

    研究表明，對城市空間布局、產業布局、產業結構以及城市交通的環境適宜性進行綜合評價是這類規劃戰略環境評價的重要特徵；互動式的評價模式能使環境因素及時、有效地納入到決策過程中；指標體系是預測評價的基礎，指標的選擇除考慮科學性、代表性外還應強調可獲得性、可量化性及可考核性。
  6. This paper use the ncep / ncar day - to - day reanalysis data of 500hpa high field and so on, choose ural mountain, baikal, okhotsk as the key district, the mid - high latitude of eurasia circulation courses that have long duration ( scale of time is middle, namely during 10 - 30 day ), maybe continue continuously after being intermittence of 1 - 2 days in middle, appear repeatedly is for research object, define an index " i " of the circulation pattern over mid - high latitude of eurasia. a method is proposed to identify the summer typical persistent circulation pattern at 500hpa levels over eurasia mid - high latitude. the climate characteristics of those typical persistent circulation patterns are studied

    本文利用ncep / ncar再分析逐日500hpa高度場等資料，選擇烏拉爾山、貝加爾湖、鄂霍次克海這三個地方作為關鍵區，以夏季歐亞中高緯度持續時間長（時間尺度屬于中間時間尺度，即10 ? 30天之間） 、中間可能會間歇1 、 2天然後又繼續持續、反復出現的環流過程為研究對象，定義了一個夏季歐亞中高緯流型指數，在此基礎上提出了一種對夏季歐亞中高緯500hpa典型持續流型的界定方法，研究了典型持續流型的氣候特徵，分析了流型指數的年代際變化，以及對應不同階段、不同流型的降水場、加熱場、海溫場等的主要特徵。
  7. The basic principle and method of 3d stochastic modeling of sedimentary microfacies are discussed according to geological and acoustic impedance data of well - logging constrained seismic inversion, and a case study according to stochastic modeling of fluvial facies reservoir of the minghuazhen formation of neocene in a certain block of bohai bay basin is used to show the general process of this research

    摘要探討了綜合應用地質及測井約束地震反演信息進行三維沈積微相隨機建模的基本原理、思路與方法， ?以渤海灣盆地某區塊新近系明化鎮組河流相儲層?例，說明這一研究過程的基本步驟，包括井眼沉積微相解釋、測井約束地震反演、波阻抗與地質相的概率關系分析、隨機模擬方法選擇、地質統計特徵分析、三維隨機建模、隨機模擬預測的多解性評價。
  8. The process of development includes selecting main parameter, function building, data searching, body drawing and database operation, and so on

    在開發過程中進行了特徵參數的選擇、函數建立、數據檢索、實體繪制及圖形數據庫操作等多項工作。
  9. And it also should suit the different learning content, students " age characteristics and the conditions of the school, including the reality of the resource state, economic ability, teachers and students " technical ability, environment for use, etc. the general procedures of the informatizational instructional design mainly include " analyze the learners ", " design stage - learning goals ", " design the learning tasks and questions ", " design the learning process ", " design the learning environment ", " design the learning resource ", " design the rubric of learning evaluation ", " evaluation and amendment "

    信息化教學方式的選擇要符合教學的目的，為達到不同的教學目的，其教學方式也會有所不同;各門學科的特點不同，適合各學科的信息化教學方式會有所區別;要切合學習的內容，不同的學習內容也會對信息化教學方式有不同的要求;要切合學生的年齡特徵、學業基礎水平等的實際;要切合學校自身的條件，包括資源狀況、經濟能力、師生技能、使用環境等實際。信息化教學設計的一般程序主要包括學習者分析、學習階段目標設計、學習任務與問題設計、學習過程設計、學習資源設計、學習環境設計、學習評價量規設計、評價修訂八個步驟。
  10. We construct weak classifier by a haar feature ; then weak classifiers are combined to a strong classifier in a linear way. the final classifier is built in a cascade structure, which could reject most non - face samples in the early layer. also we use integral image to quickly calculate the feature and reduce the detection time

    本文以簡單的haar特徵結合閾值構造弱分類器，通過adaboost學習選擇和集成弱分類器，最後按照分層結構把集成的分類器組合在一起；同時，在檢測過程中採用積分圖的方法計算特徵，保證了檢測的速度。
  11. This teaching model has five characteristic : inspiring the students to be active, impulsing the students to raise questions, emphasizing on the learning process, encouraging cooperation and demanding the students " practice within and outside classes. the teachers who are applying for the teaching model must choose the interesting subjects from the main content of physics for the students to research, decide the research types, use the best organizing form, design the research activities and prepare related materials

    根據探究式教學：主動性、問題性、過程性、合作性、實踐性的五個基本特徵，教師在中學物理教學探究準備時，必須從物理學中，選擇一些學生感興趣的的核心內容讓他們探究；還要確定探究類型；選擇最佳的組織形式；並進行探究活動的設計和準備相應材料。
  12. So we think that the teaching process of individuation reading is virtually a conversational process of reader and article or reader and reader, the interrelated factor - teaching of teacher, study of student, teaching material choose and disposal have individual character and request

    在此基礎上，我們認為，和傳統的高中語文閱讀教學不同，個性化閱讀教學的過程實質上就是一個讀者與文本、讀者與讀者對話的過程，其相關因素? ?教師的教、學生的學、教材的選擇與處理都有個性化的特徵和要求。
  13. The second chapter introduces the development process of the theory of optimum currency areas ( oca ), and the origin and development background of currency integration. from the successful practice of european currency integration, china can gain enlightenment of the characteristics and route about regional currency cooperation and integration

    第二章介紹最優貨幣區理論的發展過程，闡述貨幣一體化的制度淵源和發展背景，並從歐洲貨幣一體化的成功實踐中得到區域貨幣合作及一體化特徵和路徑選擇的啟示。
  14. By investigating, we got three main points : s ocial endowment security system is in accordance with the national economy scheme. the system is restricted by many factors and the economy is the most important thing. the security level must be fit with the economy level

    通過以上考察，發現:養老保障制度是與國家的基本經濟制度相一致的，隨著市場經濟的發展和生產社會化程度的逐步提高，以社會保障為基本特徵的現代養老保障制度是必然選擇。
  15. With the acceleration of extinction of species, biodiversity conservation is extensively concerned. the extinction of species is concerned with the degree of threat by biotic and abiotic factors. so, taking action to preserve plant species is very necessary and paramount before their extinction. one of the most effective biological techniques to conserve the biodiversity is the establishment of genebanks, i. e. ex situ conservation. the elucidation of various factors that regulate seed viability and vigor in storage is essential. an ideal condition to prolong the longevity is mainly depended on seed water content, temperature, humidity and types of containers used during storage. the optimum stage of seed maturity, harvesting techniques and processing, in addition to physiological features such as degree of dormancy, also play key roles in seed storage. certainly, desiccated seeds deteriorate with time even under extremely good genebanking conditions. according to seed storage behavior, it is necessary to consider three principal factors : storage environment, storage duration and plant species which will affect seed survival under good genebanking conditions. the present review is an attempt to discuss the importance of the aforementioned aspects of seeds in detail in order to conserve plant germplasms ( especially wild rare and endangered plants ) for ex situ conservation through seed - gene bank

    一個物種的滅絕是與其受生物因子和非生物因子的威脅程度相關的.隨著物種的加速絕滅，保護生物多樣性受到廣泛地關注.保護生物多樣性的最有效的生物技術之一是建立種子基因庫，進行遷地保護.種子庫理想的貯藏條件主要取決于種子含水量、貯藏環境（如溫度和濕度）和貯存種子的容器.進行種子貯藏，了解種子生命力和活力的影響因子的作用機理是十分重要和必要的.除了種子自身的生理特徵外，種子的貯藏壽命與種子成熟度、收獲技術、加工處理方法也是息息相關的.即使在最適的庫存條件下，種子也會隨時間發生劣變.因此，必須根據種子特定的貯藏行為，加以考慮影響種子存活的3個主要方面（貯藏環境、貯藏期和植物種類）而選擇有效的貯藏方案.本文試圖討論種子貯藏生理的幾個重要方面及其需解決的技術問題，以便更好地通過種子基因庫，長期有效地保存植物種質資源
  16. By this method of analysis, researcher can get all of elastic characters without choosing proper perturbation parameter to create perturbation solution. since this method of analysis reduce the experience factors in the process of analysis, the results of it can be more reasonable

    採用該方法求解板以及殼體的大撓度問題，研究者無須具體選擇攝動解的攝動參數就能夠得出問題的全部彈性特徵，減少了在攝動過程中的先驗因素，使得求解結果更趨于合理。
  17. After studying the contents with " sx - 10 law " concerning the oil and gas ( o & g ) cost of the international oil company, the article has systematically analyzed and compared the sinopec and foreign oil company ' s o & g cost ' s differences, such as its classifications structures, and cost accounting etc. by analyzing the international oil company ' s common o & g cost ' s movement tendency and rule which has been outlined and showing in the recent 10 years, that is between 1991 and 2000, the article has compared and studied the differences in o & g costs between the sinopec and foreign oil company, furthermore, it has taken impersonally part the real and internal reasons in details which has resulted in the differences at home and abroad. for instance, it has concluded the reasons that contribute to the long - lasting higher production cost of the sinopec upstream in three aspects : firstly, it is due to the difference in its resource stratagem, that is, the foreign oil company can realize their o & g resource optimization by the way of resource electing and o & g assets replacement in the world market ; secondly, since most of the sinopec key oilfields have been in the middle or last development period which characterizing the " three high " ( high water containing, high yield and high lifting rate ), it has been an impersonal rule with a higher level of production cost ; finally, another factor resulting in the higher production cost lies in the execrable operating and social environment which has been facing by the domestic oil company and a great amount of non - producing payout which owes to the bad environment

    本論文從美國證監會（ sec ）對國外石油公司油氣成本的《 sx4 - 10條例》的內容研究出發，系統地分析和比較了中外石油公司在油氣成本的分類、構成以及核算等方面的差異，並結合近十年來（ 1991 - 2000 ）國外石油公司油氣成本的變化趨勢和變化規律，對中外油氣成本結構和變化呈現出的差異進行了比較和研究，並就導致該差異產生的深層次原因進行了客觀翔實的剖析，文章特別指出，造成中石化上游油氣生產成本居高不下的原因有三個方面： （ 1 ）資源戰略方面，國外石油公司可以通過資源優選和資產置換來實現油氣資源的最優化選擇： （ 2 ）從開發程度上，中石化上游普遍進入以「三高」為特徵的開發階段，生產成本高是客觀規律： （ 3 ）企業面臨的惡劣經營和社會環境以及由此產生的大量非生產支出，也是構成企業生產成本較高的原因之一。
  18. In previous classifiers this process is very time - consuming and costly, thus limiting its applicability. so our classifiers may meet the requirements of real - time and high accuracy. in this thesis, we give a survey of the state - of - the - art in chinese text categorization, from the building of the corpus, the divided syncopation system of chinese web document, the selection of index, and the design of weight to the structure of scusctc ( scu smart chinese text classifier ) and its implement in java

    在研究的過程中，我們系統考察了中文web文檔自動分類的各個環節以及具體的實現技術：從語料庫的建立，中文web文檔的分詞，索引的選擇，權重的設計方案及分詞系統smcw的建立，到特徵選擇方法的研究討論，各種分類方法的研究討論，最後到中文web文檔傾向性分類系統（ scusctcscusmartchinesetextclassifier ）的結構提出及用java語言開發實現該系統，並對最後的分類結果及中間分詞結果進行了細致的實驗和考察。
  19. ( 3 ) giving innovative design tips and concrete methods. for example, " filter chain " for the preprocessing of the text materials, " semi - marshal " and " semi - unmarshal " for the serialization and recovery of large - scale objects, two main mechanisms, " inclusive " and " exclusive ", for feature selection. these new concepts are truly experiences for later similar systems

    （ 3 ） textminer為文本的合理預處理提出了「過濾器鏈」的方法，為訓練數據的重用提出了「挖掘域」的概念，為大儲存容量的對象的序列化和恢復提出了「半裝配」與「反半裝配」的實現方式，為特徵選擇過程提出了「包含式」和「排他式」兩種宏觀機制等等。
  20. By pruning the redundant input features and hidden units alternatively, network architecture is kept reasonable

    通過交替刪除網路中冗餘的輸入特徵和隱結點，使網路結構在特徵選擇的過程中保持相對良好。
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