The binary classification key, a kind of basic data structure is widely applied in the taxonomic identification of diseases and pests 摘要二叉分類檢索表作為一種基本數(shù)據結構,被廣泛地應用于病蟲分類鑒定。
Traditionally, sentence segmentation is cast as a binary classification task, where each potential boundary is classified either as the end of a sentence or not 習慣上,把句子切分當著一個二分類任務,每個潛在的邊界要么是句子的結尾,要么不是。
The first issue is multi-class classification algorithm of support vector machines . the traditional support vector machines only deal with the binary classification 痙典的支持向量機分類算法是針對二類分類的,對于多類分類,研究者們先后提出了一對多組合和一對一組合的方法。
Support vector machines ( svms ) for binary classification have been solved perfectly, but svms for multiclass classification and regressive ability need to be researched and improved further 支持向量機對二類劃分問題已解決得非常好,但其對多類劃分問題及回歸的能力仍有待進一步研究和改善。
So, i think we should take tripart not binary classification, namely, speculation research > quantitative research and qualitative research, this is the starting point of this article 因此,我認為,教育研究范式應采取三分而不是二分的劃分方法,即??思辨研究、定量研究與定性研究,這是本文的研究角度與出發(fā)點。
Svm is designed for binary classification problem . it cannot be used to solve multiclass problem directly . a new svm framework ( ecc-svm ) to handle multiclass problem is proposed, which uses the error correcting codes to reduce the multiclass problem to multiple binary problems svm是針對兩類分類問題設計的學習機器,不能直接用來解決多類分類問題,然而高維多光譜數(shù)據分類問題是典型的多類分類問題。
The ratio of right predictive number of positive sample to wrong predictive number of positive sample is used as the fitness of the improved genetic algorithm, because the positive sample is dramatically small with high unbalanced distribution in practical binary classification 針對現(xiàn)實的二值分類中正向樣本數(shù)極少且分布不平衡的特點,提出利用正確正向分類結果與錯誤正向分類結果的比值作為遺傳算法的適應度函數(shù)。
I define the education research paradigm and make a suspicion to the traditional binary classification-quantitative research and qualitative research, and signify the phenomenon that qualitative research is confused with speculative research . qualitative research is derived from english language, it's a kind of different research paradigm from speculative paradigm, but they are often mixed up in our country 在此對教育研究范式的概念進行了界定,并對傳統(tǒng)的教育研究范式的二分法------定量研究與定性研究提出了質疑,指出我國的教育研究范式存在著定性研究泛化甚至誤用的現(xiàn)象,定性研究由英文“qualitattiveresearch”翻譯而來,在港臺被譯作“質的研究”,它與思辨研究是不同的研究范式,而在我國的教育研究中卻常常將它們混為一談。
For the sake of using the binary classification key more flexiblly to classify and identify the diseases and pests as knowledge reasoning, the integration of the principles of backward reasoning and two-way reasoning was put forward, which charges the binary key into the knowledge database of expert system, and computers can make use of the structure to search the branch node and realize the assistant identification of diseases and pests 為了能更靈活地應用二叉分類檢索表作為知識推理進行病蟲分類鑒定,提出在常規(guī)推理的基礎上,融入反向推理和混合推理技術,將二叉分類檢索表作為知識裝入專家系統(tǒng)知識庫,計算機可以利用它搜索分支結點以實現(xiàn)病蟲輔助鑒定。