artificial selection 中文意思是什麼
artificial selection
解釋
【生物學】人為淘汰。- artificial : adj 1 人工的，人造的；人為的 （opp natural）。2 摹擬的 （opp genuine real）; 不自然的，矯揉造作的...
- selection : n. 1. 選擇；挑選；選拔。2. 拔萃；選擇物；精選物[品]；文選。3. 【無線電】分離，（自動電話）撥號。4. 【生物學】選擇，淘汰。
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Inheritance of resistance to cercos pora so jina hara and progeny selection under artificial inoculation and natural infection in soybean
人工接種與疫區誘發條件下大豆對灰斑病的抗性及後代選擇研究 -
The genetic structure has changed due to artificial selection and genetic differentiation index indicated slight differentiation among them
由於人工定向選擇，它們的遺傳結構已經起了一定的變化，分化系數表明它們之間已經產生了分化。 -
Almost every morsel of our food is genetically modified - admittedly by artificial selection not artificial mutation, but the end result is the same
我們吃的幾乎每一口食物都是轉基因的? ?通過人工選擇而不是人工突變，但是最終結果是相似的。 -
A group of organisms having common ancestors and certain distinguishable characteristics, especially a group within a species developed by artificial selection and maintained by controlled propagation
屬一群擁有共同祖先和明顯特徵的有機體，尤指屬于同一物種的一群，通過人工選擇來發展，通過有控制的繁殖來維持 -
On the basis of bishop, fem ( finite element method ), dem ( disturbing energy method ), ann ( artificial neural network ) and ai ( artificial intelligence ), the thesis has study in details about the stability analysis, condition forecast, repair mode selection of the landslide, and obtain some significative conclusion
本文結合實例，運用簡化畢肖普法、工程數值模擬技術-有限元法、基於系統能量準則的干擾能量法、神經網路理論及人工智慧理論等多種手段，從不同角度對滑坡的穩定分析、狀態預測、整治方案選取等進行了較為深入的研究，得出了一些有意義的結論。 -
In this paper, negative selection algorithm for artificial immune system ( ais ) is improved by adopting genetic algorithm, in which euclidean distance is selected as fitness function, to generate detectors ( antibodies )
摘要將人工免疫系統的反面選擇演算法作了改進，在產生檢測器時，利用了遺傳演算法，並將歐幾里德距離作為遺傳演算法中的適應函數。 -
Considering the artificial fracture as the refracture upon the horizontal seam, putaohua oilfield is taken as the target and the following tasks have be done : define well and stratum selection method for refracturing ; determine the refracturing time with well test analysis and flow index method ; find out the main cause of refracturing failure
摘要針對大慶油田長垣人工裂縫為水平縫的重復壓裂井，以葡萄花油田為研究對象，初步界定了重復壓裂選井選層工藝方法；應用試井分析和流動指數方法判斷重復壓裂時機；經過研究找出了重復壓裂井裂縫失效的主要原因。 -
To increase antibody generating speed in artificial immune system, a chaos negative selection algorithm was presented which is based on the chaotic character of immune system
摘要為了提高人工免疫系統中抗體生成速度，基於免疫系統的混沌特徵，提出了混沌否定選擇演算法。 -
" the proposed areas for deploying artificial reefs in outer port shelter and long harbour are important nursery and spawning grounds. selection of these areas, after extensive consultation, is supported by some environmental groups, the sai kung north rural committee and the majority of non - trawl fishers that operate there, " the spokesman said
漁護署提議在外牛尾海及大灘海敷設人工魚礁的地點均為重要的產卵及育苗場。經廣泛諮詢后，這兩個建議的地點均獲環保團體、西貢北鄉事委員會及大多數在區內作業的非拖網漁民支持。 -
Based on the clonal selection theory and immune memory mechanism in the natural immune system, a novel artificial immune system algorithm, clonal strategy algorithm based on the immune memory csaim is proposed in this paper. the algorithm realizes the evolution of antibody population and the evolution of memory unit at the same time, and by using clonal selection operator, the global optimal computation can be combined with the local searching
人工免疫系統ais是一新的模擬自然免疫系統的計算智能方法，它受生物免疫機制的啟發，通過學習外界物質的自然防禦機理，提供噪聲忍耐自組織自學習記憶等進化學習機制，結合了分類器神經網路和機器推理等的特點，因此具有提供解決問題新穎方法的潛力。 -
The intrusion detection system based on artificial immune model simulates negative selection, clonal selection, and memory cells in the human immune system and assigns detection to six kinds of functional agents, which are monitoring agents, decision agents, response agents, communication agents, selection agents and testing agents. though sharing information and interaction with each other, these agents can identify anomalous behavior mode
該系統模擬了人體免疫系統中的負篩選、克隆篩選和記憶細胞等基本工作原理和機制，將入侵檢測的任務分配給監視、決策、響應、通信、篩選和測試等六個功能主體，通過這些主體之間的信息共享、相互協作來識別異常行為模式。 -
In this thesis, firstly, we give an introduction and analysis to the complexity adaptive system and artificial life which are the mainstream research harvest currently. secondly, we provide a supplement to some theory include stream, diversity and adaptive agent. at last, on the basis of the theories, we complete a validating to the nature selection and heredity variance in computer, a basic conceiving about learning species and a validate model of the theories of the origins of currency and price equilibrium
本文對這方面最主流的研究成果復雜適應系統及人工生命的研究工作作了分析與介紹，並就其中的流、多樣性、適應性主體等理論作了自己的補充，最後我們結合對這些理論的認識，完成了自然選擇及遺傳變異的初步驗證、學習物種的基本構思、貨幣產生及市場價格均衡理論驗證的模型構建，在後續的工作中，我們除了繼續未完成的工作外，還將添加許多新的理論驗證。 -
Factor - analysis on habitat - selection of the avian community at the artificial wetlands behind the chongming dongtan seawall during winter and spring
上海崇明東灘堤內次生人工濕地鳥類冬春季生境選擇的因子分析 -
On the basis of summarizing the common principle and method of selection of system structure and setting function and means of implementation, we research mainly on such subjects as follows : firstly, we studied the implementation of text extraction and digital signature by cad secondary development technology combine with database technique. secondly, based on method for pre - processing scanning images of drawings, finally, the application of artificial neural network in engineering drawing sign character recognition was researched. in this thesis, we presented the building model and implementation method has some references to the designing work of similar system
在論述系統結構選取、功能構建以及實現技術的一般原理和方法的基礎上，進行了以下幾個方面的研究：首先研究了cad二次開發技術同數據庫技術相結合實現系統圖紙文本信息西安理工大學碩士學位論文提取和電子會簽功能，然後研究了掃描圖紙的圖像處理技術，為圖紙的矢量化和智能識別提供圖形表達準確、圖形要素和字元要素分離的數據源，最後研究了人} _神經網路技術在} _程圖紙標識字元識別中的應用。 -
In this paper, a frame of quantum clonal evolutionary algorithm is presented by the combining of quantum theory with the clonal selection theory in artificial immune system ( ais ). its algorithms are given in detail and their convergences are proved. both the theory analysis and simulations prove its superiority
本文主要內容概括如下： （ 1 ）本文將量子理論與人工免疫系統中的克隆選擇學說思想相結合提出了一種新穎的學習演算法? ?量子克隆進化演算法，證明了該演算法收斂性，模擬試驗表明：該演算法是可行有效的。 -
The support vector machine is much better in the aspects of the function expression, generalization and efficiency than the traditional artificial neural network. it solves the problems : model selection, overfitting, nonlinearity, dimensions, the lowest point in local, and so on
支持向量機方法在函數表達能力，推廣能力和學習效率上都要優于傳統的人工神經網路，且很大程度上解決了傳統方法存在的問題:如模型選擇、過學習、非線性、多維問題、局部最小點問題等。 -
A preliminary study on the artificial cultivation and breeding selection of suaeda salsa
鹽地堿蓬人工栽培與品系選育初報 -
Aiming mainly at the application of cad technology in geological survey as well as providing complete geology materials for mining designing, this paper has discussed and studied several pieces of key technology and method involved in design and realization of software, whole structure as well as selection of development tool and environment of software and so on. from the practice of engineering application, this paper carries out the following items : accessing structure of geological survey data as well as mutual transforming technology with its graphics. the theory and method of automatic drawing boundary line between ore and rock based on the artificial neural network
論文從工程應用的實際出發，主要進行了以下幾方面的工作：地測數據的存取結構及其與相關圖形的互動技術基於人工神經網路的礦巖界線的自動繪制理論與方法基於opengl技術的3d礦床模型的自動生成理論與方法基於粗糙集理論的地測數據預測分析模型本論文綜合運用了先進的objectarx技術、數據庫技術、 opengl圖形技術、 ado數據庫連接技術，以可視化開發工具visualc + + 6 . 0為開發平臺，以autocad通用圖形系統為應用平臺，以mssqlserver為數據庫平臺，完成了系統的總體設計與軟體實現。 -
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。 -
Study on artificial nerve network applying for injection mold material selection
人工神經網路在注射模具選材中的應用
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