information gain 中文意思是什麼

information gain 解釋
信息增益
  • information : n. 1. 通知，通報，報告。2. 報導，消息，情報。3. 資料，知識，學識。4. 【自動化】信息，數據。5. 【法律】起訴，告發。adj. -al
  • gain : vt 1 獲得；博得，掙得；贏得，打勝（戰爭、官司）。2 吸引；爭取…（到一邊），說服。3 （尤指通過努力...
  1. We reduce the number of categories of data and will gain less information from the contingency table.

    減少數據的項數，會使聯表提供的信息有所減少。
  2. The destination of task planning and scheme scheduling of imaging satellites is considering each constraint integrally, assigning tasks for each satellite and each land station in reason, arranging the running of satellite and creating satellite imaging schemes in condition of multi satellites and multi land stations, which helps to gain image information of imaging demand ordered by users

    成像衛星任務規劃與調度的目的是為了在多星多地面站條件下，綜合考慮各項約束，合理分配各衛星及各地面站任務，並對衛星的運行進行調度，制定衛星的拍攝計劃，以獲得用戶要求的成像需求圖像信息。
  3. Discuss the generation of test strategy for diagnosis based on information gain maximization and conditional entropy minimization. this approach can be used into the testability analysis and the optimization of test strategy for diagnosis

    研究了基於信息增益最大和基於條件熵最小的診斷測試策略生成問題，該方法可用於系統的可測性分析、診斷測試策略的優化等方面。
  4. Among the decomposed synthesis reasoning sources, the field intensities were defined by dependency and classification methods based on the concept of positive region, by discernibility matrix method based on the rate of appearance, and by mutual information, condition entropy and mutual information gain rate methods based on information theory

    在分解得到的綜合源中，基於正域的概念，用依賴度和分類質量方法定義了場強，根據屬性出現頻率， ?用差別矩陣定義了場強，並結合信息論，通過互信息、條件熵和互信息增益率定義了場強。
  5. For example, the information gain of 1x forward and backward whirls is high for detecting rotor imbalance and the gains of 1x, 2x and 3x forward and backward whirls are high for detecting stator / rotor rub

    使用該方法發現，轉子振動的一、二、三階正進動和反進動量對于不平衡和碰摩故障的信息增益最大。
  6. Based on the work of other researchers, the paper introduces information theory into tf idf method of vcm, and forms a new tf idf 1g method which embodies information gain all through. the paper has proved by experimentation that the new method not only can keep the documents difference of traditional tf idf method, but also can catch the more minute discrimination in proportion of it than the old one

    本文在前人研究的基礎上，將信息增益引入到vcm權重計算方法tfidf的整個過程中，形成結合信息增益的tfidf相似度計算方法、標準確信度計算方法，得到最終的引入了信息增益的文本分類計算方法tfidfig 。
  7. Additionally, the optimum structure and parameters of the support vector machine can easily be determined by the learning process, however the neural networks can not. an information gain of signature signals is introduced to assess the contribution of the signature signals to diagnosing faults in rotating machines

    同時發現，存在一個最佳訓練樣本比例值，在該比例值上，不同核函數支持向量機的故障診斷錯誤率均趨于穩定，也就是說這個比例值確定了在保證故障診斷準確率的條件下，所需要的最少訓練樣本數。
  8. The typical ones include relief - f, information gain and chi - square etc. feature selection was considered as feature selection in supervised learning from traditional view

    其中的典型代表有relief - f 、信息增益和卡方檢驗等。過去傳統意義上的屬性選擇通常是指在有指導學習環境下的屬性選擇。
  9. Furthermore, in order to assure that the acquired classification rules to be accuracy as well as comprehensible, we put forward a method to compute the comprehensibility of the classification rule using attribute information gain, different to the other methods which evaluate the comprehensibility of the rule only by its simplicity. thus the output of the mining is more understandable and informational. we also do it using a niche - based ga

    在此基礎上，為了從現有數據中挖掘易於理解的分類規則，本文提出了一種應用屬性信息增益計算分類規則可理解性程度的方法，改進了以往方法中僅依靠規則的簡單度來評價分類規則易於理解性的缺點，從而使得到的分類規則包含有更多的分類信息，更加有助於用戶的理解。
  10. Results of the study are detailed as follows : firstly, relevance analysis is conducted to the record of the xiangjiaba project slope rock mass rheological test, using the technique of information gain of ms analysis services

    應用msanalysisservices決策樹數據挖掘模型的信息增益技術，基於龍灘水電站邊坡巖體室內巖石流變試驗數據進行相關性分析，研究了室內試驗過程中各因素對巖石變形的關聯程度。
  11. Moreover, the paper compiles a decision tree - making program by camm algorithm in matlab in order to compare with the clustering. regard the history fault data of gear case as specimen, at first the information gain of every decision property is calculated at current decision point and the decision property which has the greatest information gain is selected as the decision point. then the assembly is subdivided according to the value of its decision property. delete the groups whose degree of support for sort property classification is less then the designated value

    以齒輪箱歷史故障數據為樣本，首先從當前決策節點計算每個決策屬性的信息增益，選擇具有最大信息增益的決策屬性作為決策節點，並根據該決策屬性的取值將該決策屬性所在集合分成若干個子集，濾掉所有子集中對類別標識屬性的分類支持度小於指定的最小支持度的元組，重復該過程直至生成決策樹。
  12. Firstly, some basic algorithms for inducing decision tree are discussed, including id3, which uses information gain to select a splitting attribute when partitioning a training set ; c4. 5, which can deal with numeric attributes ; cart, which uses gini rule in attribute selection and induces a binary tree ; public, which puts tree pruning in the tree building phase ; interactive method, which puts artificial intelligence and human - computer interaction into the procedure of decision tree induction ; as well as sliq and sprint which are scalable and can be easily parallelized. advantages and disadvantages of these algorithms are also presented

    文中詳細闡述了幾種極具代表性的決策樹演算法：包括使用信息熵原理分割樣本集的id3演算法；可以處理連續屬性和屬性值空缺樣本的c4 . 5演算法；依據gini系數尋找最佳分割並生成二叉決策樹的cart演算法；將樹剪枝融入到建樹過程中的public演算法；在決策樹生成過程中加入人工智慧和人為干預的基於人機交互的決策樹生成方法；以及突破主存容量限制，具有良好的伸縮性和并行性的sliq和sprint演算法。
  13. Although is requests comprehensively to the information gain, but needs to have the key point, more importantly may not separate the pure information but the independent existence, the enterprise is also must pay great attention to in the construction information, does not want simply to separate carries on the analysis, but must carry on the overall situation plan

    雖然對信息的獲取是要求全面的，但是更需要有重點，更重要的是不可割裂單純的信息而單獨的存在，企業在建設信息化是也要注重，不要簡單的割裂進行分析，而要進行全局規劃。
  14. To solve this problem, we present a new approach on ids algorithm - the information gain of attribute - value pairs in two levels - to optimize the decision tree

    為了解決取值偏向的問題，本文在id3演算法的基礎上提出了屬性-值對的兩次信息增益優化演算法。
  15. We also took tests to compare our optimization algorithm with id3 algorithm using the data set famn providing, and did experiment on the standard data uci providing, the result show that the information gain of attribute - value pairs in two levels optimization algorithm is more excellent than ids algorithm indeed

    通過對使用同一個實例集用不同的演算法建立的決策樹的分析比較，得出使用屬性-值對的兩次信息增益優化演算法比id3演算法所得到的決策樹更理想。並且通過對famn家族數據集的測試比較以及對uci提供的標準數據進行實驗，說明了這種演算法確實比id3演算法有所改進。
  16. Neural network has higher performance to dos and probing attacks than to r2l and u2r attacks. however, according to the theory of information gain, c4. 5 can accurately detect the r2l and u2r by extracting the rules from the content features. what is more, the model can also be updated by the c4. 5 rules mined from the dataset after the event ( intrusion )

    採用bp網路對入侵數據包進行檢測時，其對拒絕服務（ dos ）和探測（ probing ）類的攻擊有較好的檢測率，但對遠程到本地（ r2l ）以及對超級用戶（ u2r ）非授權訪問類攻擊的檢測率較低。
  17. Therefore the information gain is a suitable criterion for choosing signature signals

    因此，這些量是重要的故障特徵量。
  18. Combining the philosophy of clustering and information gain, a discretization algorithm based on distance and information gain is proposed

    摘要結合聚類的思想與信息增益性質，給出一種基於距離與信息增益相結合的連續屬性離散化方法。
  19. To the problem of network level sensor management, a centralized network multi - platform sensor management algorithm based on joint information gain is proposed

    摘要針對網路級傳感器管理問題，提出一種基於聯合信息增量的集中式網路多平臺傳感器管理演算法。
  20. The comparison experiments of speech signals corresponding to different snr and noise type was designed using the measure of complexity behaviors based on the information gain

    採用基於信息增益的復雜性行為度量，對含不同噪聲類型，以及不同信噪比的各種中英文語音樣本進行了對比實驗。
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