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hierarchical classification中文是什么意思

  • 分層分類
  • 分級(jí)分類
  • 級(jí)系分類
  • 有層次的安全級(jí)別
  • 組內(nèi)分組

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  • 例句與用法
  • Another useful ecological unit that cuts across this hierarchical classification is the life system .
    另一個(gè)橫貫這些等級(jí)分類有用的生態(tài)單元就是生命系統(tǒng)。
  • 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
    然后著重介紹了一個(gè)基于神經(jīng)網(wǎng)絡(luò)的文本自動(dòng)分類系統(tǒng)nntcs ,重點(diǎn)闡述了特征提取、空間降維、層次分類和分類器訓(xùn)練等技術(shù)的實(shí)現(xiàn)方法。
  • 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(duì)文本分類和問(wèn)題分類的差別,利用依存分析提取主干和疑問(wèn)詞及其附屬成分,并結(jié)合主干關(guān)聯(lián)詞對(duì),采用支持向量機(jī)分類器,此方法大大減少了問(wèn)題分類的噪音,突出了問(wèn)題分類的主要特征,并考慮了詞與詞之間的句法關(guān)系,取得了良好效果;同時(shí),針對(duì)普通層次分類在問(wèn)題分類上效果不理想的情況,本文提出了類別主特征結(jié)合句法特征的中文問(wèn)題層次分類新思想,利用句法分析提取分類特征,在問(wèn)題分類中融入了句法信息,總的準(zhǔn)確率達(dá)到大類88 . 25 %和小類73 . 15 % ,比傳統(tǒng)的層次分類分別提高了10個(gè)百分點(diǎn),證明了此方法的有效性。
  • 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(chǔ)上,論述gis支持下多源遙感森林資源動(dòng)態(tài)變化監(jiān)測(cè)的流程,提出基于森林資源的遙感分類體系和分類方法,通過(guò)對(duì)漳浦縣森林資源的動(dòng)態(tài)變化進(jìn)行分層識(shí)別,獲得漳浦縣森林資源變化的總體情況和主要地類(樹(shù)種組)的具體變化情況。
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