hierarchical classification 中文意思是什麼

hierarchical classification 解釋
分層分類
  • hierarchical : adj. 1. 僧侶統治（集團）的。2. 統治集團的。3. 等級（制度）的。adv. -cally
  • classification : n 1 選別；分等，分級；分選。2 【動、植】分類（法）。 〈分類級別為： phylum 【動物；動物學】及 div...
  1. A variety of methods including the tabular comparison of data, the tabular comparison of similarity coefficient, the nearest neighbor method and the group - average method of hierarchical agglomerative classification were applied to investigate the forest communities in meizi lake area

    森林植被樣地中以喬木層樹種的重要值為指標，採用紙條排隊法、群落相似系數分類法、最近鄰體法、組平均法對梅子湖森林植被樣地進行數量分類。
  2. Another useful ecological unit that cuts across this hierarchical classification is the life system.

    另一個橫貫這些等級分類有用的生態單元就是生命系統。
  3. Hierarchical image classification methodology aiming to obtain the maximum number of land cover classes through auto - classification procedures,

    分級圖像分類方法，目的在於通過自動分類程式獲取最多的土地覆蓋類型。
  4. Sampling ; statistical principles of sampling with cross classification according to two hierarchical criteria

    抽樣.按照兩組不同分級準則交叉分類的抽樣統計原理
  5. At the same time, because general hierarchical is not good on question classification, this paper proposes a new method for chinese question hierarchical classification. this method combines the key class features with the question syntactic features to classify questions. since this method extracts the syntax features and adds syntax information into question classification, at last, the precision of the coarse classes reaches 88. 25 % and fine classes reaches 73. 15 %, respectively improves nearly ten percent than the traditional hierarchy classification, proving this method is effective

    本文針對文本分類和問題分類的差別，利用依存分析提取主幹和疑問詞及其附屬成分，並結合主幹關聯詞對，採用支持向量機分類器，此方法大大減少了問題分類的噪音，突出了問題分類的主要特徵，並考慮了詞與詞之間的句法關系，取得了良好效果;同時，針對普通層次分類在問題分類上效果不理想的情況，本文提出了類別主特徵結合句法特徵的中文問題層次分類新思想，利用句法分析提取分類特徵，在問題分類中融入了句法信息，總的準確率達到大類88 . 25 %和小類73 . 15 % ，比傳統的層次分類分別提高了10個百分點，證明了此方法的有效性。
  6. The chemical information of 17 samples of 2 kinds of plants was obtained with high performance liquid chromatographic method and classification based on their chemical information was made through hierarchical cluster

    利用高效液相色譜技術提供了2個麻黃屬藥材品種17個樣品的內在成分信息，結合聚類分析技術，對麻黃屬植物進行了分類及鑒定。
  7. Based on the analysis of the main forest change types, a processing flow using multiresouce remote sensing data to detect forest changewas put forword, supported by gis technology. the classification system and methods for forest resourcewere also described. the overall and main species changes of forest were achieved by hierarchical classification and thematic extraction

    在分析漳浦縣森林資源變化組成的基礎上，論述gis支持下多源遙感森林資源動態變化監測的流程，提出基於森林資源的遙感分類體系和分類方法，通過對漳浦縣森林資源的動態變化進行分層識別，獲得漳浦縣森林資源變化的總體情況和主要地類（樹種組）的具體變化情況。
  8. Is the species ( plural, same spelling ) epithet which begins with a small letter, and must be used only in conjunction with its genus name. genus and species are lower categories in the hierarchical system of plant classification

    是種附加詞，必須緊接屬名之後，其首個字母以小階表示。分類法中的屬和種在植物分類學上都在較低層。
  9. However, if we want to have a more detailed picture not only of urban expansion but also of landuse differentiation within and beyond urban areas, and of environmental sensitivities in different parts of the region, then a somewhat more refined land use classification scheme, probably a two - digit hierarchical one modelled after the scheme proposed in the

    然而，如果我們要求詳細了解城市擴展、城外區域的用地分類以及區域內各個部分的環境敏感性，則應當采納更加細化的用地分類方案，或許應采納規劃署提出的關于香港用地模式而制訂的兩級分類方案。
  10. Abstract : the feature definition and the feature classification are given firstly. then the constraint - based parametric feature model of mechanical part is set up. a graph called feature relation graph is used to represent the feature model and a dynamic linked list to build and store the model. using the oop technique, the author realized the feature model. based on the parametric feature model, the feature hierarchical parametrization is analyzed and a parametric example is also given

    文摘:首先系統給出了機械產品造型領域特徵的定義以及特徵的分類；其次，建立了基於約束的機械產品零件的參數化特徵模型，並用特徵關系圖的形式表達特徵模型，同時採用動態鏈表構建特徵模型並用面向對象技術實現了零件的參數化特徵模型；最後結合實例分析了基於特徵模型的零件特徵分級參數化實現過程。
  11. 3. the classification and the description of the assembly features are researched and the feature models of the parts are built in caxa, and the parts are assembled to hierarchical assembly model

    3 、研究了裝配特徵的分類及裝配特徵的描述，在caxa實體設計中進行零件的特徵建模，並將這些零件裝配成具有層次關系的裝配設計模型。
  12. Then this paper presents a text classifier based on neural networks ( nntcs ) as the main topic. some key techniques implemented in this classifier, such as feature extraction, dimension reduction, hierarchical classification and classifier training, are discussed in details

    然後著重介紹了一個基於神經網路的文本自動分類系統nntcs ，重點闡述了特徵提取、空間降維、層次分類和分類器訓練等技術的實現方法。
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