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基于支持向量機(jī)的中文農(nóng)業(yè)文本分類技術(shù)研究
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國家高技術(shù)研究發(fā)展計劃(863計劃)資助項目(2013AA102306)、山東省自主創(chuàng)新資助項目(2014XGA13054)和中央高?;究蒲袠I(yè)務(wù)費(fèi)專項資金資助項目(2015XD001)


Classification Technique of Chinese Agricultural Text Information Based on SVM
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    摘要:

    高效地組織、分類信息,是提供個性化農(nóng)業(yè)信息推薦服務(wù)的基礎(chǔ)。根據(jù)農(nóng)業(yè)文本信息特點(diǎn),提出了一種基于線性支持向量機(jī)(Support vector machine,SVM)的中文農(nóng)業(yè)文本分類模型,首先構(gòu)建農(nóng)業(yè)行業(yè)分類關(guān)鍵詞庫,通過特征詞選擇和權(quán)重計算,構(gòu)建分類器模型,實(shí)現(xiàn)信息的自動分類。實(shí)驗選取了1 071個測試文檔,并按照種植業(yè)、林業(yè)、畜牧業(yè)、漁業(yè)進(jìn)行分類。結(jié)果表明,分類準(zhǔn)確率為96.5%,召回率為96.4%。實(shí)驗結(jié)果高于貝葉斯、決策樹、KNN、SMO等分類算法,將該模型應(yīng)用于農(nóng)業(yè)物聯(lián)網(wǎng)行業(yè)信息綜合服務(wù)平臺,運(yùn)行結(jié)果表明,該方法能夠?qū)崿F(xiàn)中文農(nóng)業(yè)文本信息的自動分類,響應(yīng)時間滿足系統(tǒng)要求。

    Abstract:

    In order to provide personalized services for agricultural information recommendation, it was needed to organize and classify information efficiently. According to the characteristics of agricultural texts, a Chinese agricultural text classification model was proposed based on linear support vector machine (SVM). Firstly, an agriculture-domain-based dictionary was built. Secondly, a feature vector was extracted and the weight for each feature in a vector was selected. Lastly, a text classification model was established. The model was tested on 1 071 documents which were belonged to four classes: planting, forestry, animal husbandry and fisheries. The results showed that the accuracy was 96.5% and the recall rate was 96.4%. Both of their performances were higher than those of the ones using other classification methods, such as the Bayesian, decision tree, KNN, SMO algorithm and neural network. The model was applied to the platform for agricultural internet of things (IOT) industry integrated information service. The performance showed that the method can automatically classify Chinese agricultural text information and the response time met the system requirements.

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魏芳芳,段青玲,肖曉琰,張磊.基于支持向量機(jī)的中文農(nóng)業(yè)文本分類技術(shù)研究[J].農(nóng)業(yè)機(jī)械學(xué)報,2015,46(S1):174-179. Wei Fangfang, Duan Qingling, Xiao Xiaoyan, Zhang Lei. Classification Technique of Chinese Agricultural Text Information Based on SVM[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(S1):174-179.

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  • 收稿日期:2015-10-28
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  • 在線發(fā)布日期: 2015-12-30
  • 出版日期: 2015-12-31
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