測得漏率 的英文怎麼說
中文拼音 [cèdelóulǜ]
測得漏率
英文
measured leak rate-
The improved hmm algorithm is applied in this hids. the test results indicate that the hids has a better detection rate and lower misinformation rate
對實現的主機入侵檢測系統進行了測試，得到了較好的檢測率和較低的誤報率和漏報率。Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical
通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出：弧根周圍空氣的熱電離導致了電弧的發展，靜電場力對電弧的發展起到了加速作用，電擊穿僅發生在閃絡最終的跳躍階段；通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數，得到了不同階段電弧（電弧起弧階段、電弧發展階段及完全閃絡）的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。Ids has been fast developing since it ' s put forward. but intrusion detection technology is now wandering with the universal application of high - speed network, the appear of new attack methods like distributed denial of service attack, and the low efficiency and high false positive of today ' s idss
但是，由於高速網路和交換式網路的普遍應用，以分散式拒絕服務攻擊為代表的新型攻擊方式的出現和發展，以及現有入侵檢測系統效率低下、誤報率和漏報率較高的問題無法得到有效解決等問題，目前入侵檢測技術正處于發展的關鍵時期。This tool is aim to test the technology of evading ids by utilizing the weaken of network layer and the transmission layer. and then we test the snort by using the tester and the hacker tool, from the result we find a critical problem faced by a network intrusion detection system ( nids ) is that of ambiguity is the main reason that producing the make false positive and false negative
通過該工具與第三方黑客軟體? fragroute相結合，對入侵檢測系統軟體- - snort進行測試，從結果的分析中得知網路入侵檢測體系所面臨的語義模糊性問題是造成漏報率和誤報率很高的一個主要原因，入侵者就可能利用這一漏洞逃過nids的檢測或者引起檢測系統的誤警。The ids works by two way, misuse detection and anomaly detection, misuse detection flags an intrusion on intrusion signature, this kind of detecting technic can be realized much more easily, and much more accurate, but it can not find some intrusiones that have been disguised or new kinds of intrusion. the anomaly detection can detect in more wide field, anomaly detection can compare new statistic data with average record, then anomaly record will be found, but it ' s more difficult to set a threshold, if the threshold is too big, some intrusion may be put through, if the threshold is too small, the ids will give more false positive alarm, and the threshold will be different with different people or different period, so the ids just simply show us their suspicious record, the administrator or expert will be in duty to analyze this record and give conclusion, the ids give more alarm than it should, leave us more detection record to analyze, and this is a hard work, we can not distinguish an intrusion or not if we analyze only one record, but we can judge if we find the relation among mass detection evidence. in this article, we try distinguish an intrusion using d - s theory ( proof theory ) instead using manual work, the ids will be more helpful and efficient
濫用檢測採用的是特徵檢測的方法，實現較為簡單，判斷的準確性較高，但是不能判斷一些經過偽裝的入侵或特徵庫中尚未包含的入侵，異常檢測能夠根據以往記錄的特徵平均值，判斷出異常情況，但是對于異常到什麼程度才視為入侵，這個閥值非常難以確定，閥值設定的太高，有可能漏過真正的入侵，如果設定的閥值太低，又會產生較高的誤警率，而且這個閥值因人而異，因時而異，因此現在的入侵檢測系統把這部分異常記錄以一定的形式顯示出來或通知管理人員，交給管理人員去判斷，而這些ids系統難以判斷的記錄，如果對每個證據單獨地進行觀察，可能是難以判斷是否是入侵，而把許多先後證據關聯起來，專家或管理人員根據經驗能夠判斷訪問的合法性，本文試圖引入人工智慧中證據理論的推理策略和示例學習方法，代替人工檢查分析，可以提高效率，降低誤警率，並可以對一個正在進行得可疑訪問實現實時檢測，通過搜索及時判斷，及時阻斷非法訪問，比事後得人工處理更有意義。The automat i c mon i tor i ng on the i oad i ng s i tuat i on of mov i ng f re i ght tra i ns should be implemented to ensure the operation security of railway fre i ght. the paper presents a new algorithm for freight train image segmentation with the aim of minimizing missing gauge - exceeding detection rate based on the image segmentation theory. the prof i le of the freight train and cargoes on the image is obtained with the arithmetic and whether cargoes exceeding the gauge or not is concluded by the location of the freight train and cargoes on the image
本文以數字圖像處理原理中圖像分割理論為基礎，結合貨車裝載狀態監測的實際情況和貨車裝載狀態監測系統對圖像分割的要求，以保證超限漏檢率最小為目標，給出了貨車圖像自動分割的演算法，獲得貨車及其所裝載貨物的分佈區域，再根據該分佈區域，得出貨車裝載狀態是否超限的結論，從而實現對運行中貨車的裝載情況的自動監測。Presently, in the field of impurity detection in liquid, most research is limited to single frame image. that cannot get good result
目前，對于液體中的雜質檢測，大多研究只限於單幀圖像，漏檢率高，難于獲得較好的效果。With negative pressure gauge, neutron instrument and monitor research for depth of embedment of groundwater, we can obtain the changeable regulation of the soil moisture change in field and moisture use efficiency in field at childbearing period ; in five irrigation water, every time all has deep seepage, and the soil all can reach to saturation ; in childbearing period, the mutual change relation of irrigation water and groundwater is active
摘要通過負壓計、中子儀、地下水埋深監測研究，得出生育期田間水分變化規律及土壤水分利用效率； 5次灌水均有深層滲漏，土壤都能達到飽；在生育期間，土壤水和地下水相互轉換關系活躍。分享友人