tree n. 特里〔姓氏〕。 n. 1.樹〔主要指喬木,也可指較大的灌木〕。 ★玫瑰可以稱為 bush, 也可以稱為 tree. 2.木料,木材;木構(gòu)件;〔古語〕絞首臺;〔the tree〕(釘死耶穌的)十字架;鞋楦。 3.樹形(物),世系圖,家系 (=family tree);【數(shù)學(xué)】樹(形);【化學(xué)】樹狀晶體。 a banana tree 香蕉樹。 an axle-tree 心棒,軸料。 a boot-tree 靴楦[型]。 a saddle-tree 鞍架。 at the top of the tree 在最高地位。 tree of Buddha 菩提樹。 tree of heaven 臭椿。 tree of knowledge (of good and evil) 【圣經(jīng)】知道善惡的樹,智慧之樹。 tree of life 生命之樹,生命力的源泉【植物;植物學(xué)】金鐘柏。 up a tree 〔口語〕進(jìn)退兩難,不知所措。 vt. 趕(獵獸等)上樹躲避;〔口語〕使處于困境;窮追;把鞋型插入(鞋內(nèi))。
Tree types of plumbing in one luxury public toilet could perfectly meet any person ' s needs 每間同時擁有3個便池的豪華公共廁所,想使用哪一種都可以私密解決。
If the process of information classification was accomplished , a tree type catalog would be established 原型向量反復(fù)提取過程反映了一種樹型關(guān)系,而每個階段的結(jié)果形成樹型目錄的一個節(jié)點(diǎn)。
The process of reiterative extraction of original vector reflected a tree type relationship , and the result of each step formed a node of the tree type catalog 其中,原型向量的提取根據(jù)輸人的搜索關(guān)鍵詞及其上下文關(guān)系,通過徑向基函數(shù)神經(jīng)網(wǎng)絡(luò)完成。
As an important component of the above researches , this paper covers following aspects : ? firstly , product design theories are summarized , status and development trend of machinery product design are analyzed , and application of knowledge based design method in machinery product design is put forward . ? kbe ( knowledge based engineering ) theories such as knowledge acquisition , representation and storage are discussed , kbe concept is integrated with ug secondary development technology , and design knowledge is induced and stored to establish the design knowledge base . ? product case representation is researched , a hierarchical tree type product case library for complex products is established , retrieve strategy for cases of the nearest filed is put forward and corresponding algorithm is given 本文的主要研究內(nèi)容及成果如下: ?對產(chǎn)品設(shè)計(jì)理論和方法進(jìn)行了總結(jié)和概括,分析了機(jī)械產(chǎn)品設(shè)計(jì)的現(xiàn)狀和發(fā)展趨勢,將基于知識的設(shè)計(jì)方法應(yīng)用到機(jī)械產(chǎn)品的設(shè)計(jì)中; ?研究了知識獲取、表達(dá)、存儲等kbe理論,并將kbe思想應(yīng)用到ug二次開發(fā)中,將設(shè)計(jì)知識歸納存儲,建立了設(shè)計(jì)知識庫; ?研究了產(chǎn)品實(shí)例表示,建立了復(fù)雜產(chǎn)品層次樹狀產(chǎn)品實(shí)例庫,介紹了最近鄰域?qū)嵗龣z索策略并給出相應(yīng)的算法; ?研究了基于知識重用的三維產(chǎn)品建模技術(shù),研究了在設(shè)計(jì)過程中的設(shè)計(jì)資源的重用,計(jì)算過程的重用,計(jì)算數(shù)據(jù)的重用,推理過程的重用等等;介紹了基于設(shè)計(jì)重用的凸輪三維模型的實(shí)現(xiàn)方法。
The essence of edid is to set up a normal behavior fuzzy sub collection a on the basis of watching the normal system transfer of the privilege process , and set up a fuzzy sub collection b with real time transfer array , then detect with the principle of minimum distance in fuzzy discern method the innovation point of this paper is : put forward the method of edid , can not only reduce efficiently false positive rate and false negative rate , also make real time intrusion detection to become possibility ; have independent and complete character database , according to the classification of monitoring program , design normal behavior and anomaly behavior etc . , have raised the strongness of ids ; use tree type structure to preservation the character database , have saved greatly stock space ; in detection invade , carry out frequency prior principle , prior analysis and handling the behavior feature of high frequency in information table , have raised efficiency and the speed of detection , make real time intrusion detection to become possibility ; have at the same time realized anomaly intrusion detection and misuse intrusion detection , have remedied deficiency of unitary detection method 這種方法的實(shí)質(zhì)是在監(jiān)控特權(quán)進(jìn)程的正常系統(tǒng)調(diào)用基礎(chǔ)上建立正常行為模糊子集a ,用檢測到的實(shí)時調(diào)用序列建立模糊子集b ,然后用模糊識別方法中的最小距離原則進(jìn)行檢測。本文的創(chuàng)新點(diǎn)是:通過對特權(quán)進(jìn)程的系統(tǒng)調(diào)用及參數(shù)序列的研究,提出了基于euclidean距離的入侵檢測方法edid ,不僅能有效降低漏報(bào)率和誤報(bào)率,而且使實(shí)時入侵檢測成為可能;設(shè)計(jì)有獨(dú)立而完整的特征數(shù)據(jù)庫,根據(jù)被監(jiān)控程序的類別,分別設(shè)計(jì)正常行為、異常行為等,提高了檢測系統(tǒng)的強(qiáng)健性和可伸縮性;特征數(shù)據(jù)庫按樹型結(jié)構(gòu)存儲,大大節(jié)省了存儲空間;在檢測入侵時,實(shí)行頻度優(yōu)先原則,優(yōu)先分析和處理信息表中的高頻度行為特征,提高檢測的速度和效率,使實(shí)時入侵檢測成為可能;同時實(shí)現(xiàn)了異常入侵檢測和誤用入侵檢測,彌補(bǔ)了單一檢測方法的不足。