vector measure 中文意思是什麼
vector measure
解釋
向量測度-
Experiments are performed and results show : 1 the popular retrieval models the okapi s bm25 model and the smart s vector space model with length normalization do not perform well for document similarity search ; 2 the proposed model based on texttiling is effective and outperforms other models, including the cosine measure ; 3 the methods for the three components in the proposed model are validated to be appropriately employed
我們通過實驗驗證了以下三點： 1 trec中的常用信息檢索模型不能很好地解決文檔相似搜索2我們提出的基於texttiling技術的模型是有效的，性能優于其他模型3我們提出的模型中所採用的方法是有效的，包括利用texttiling技術進行文本子主題分割，利用餘弦公式來計算文本塊之間的相似度，以及利用最優匹配方法來求解文檔之間的總體相似度。 -
Therefore, a model of three sectors, respectively referring to domestic sector, manufacturing export sector and primary product export sector, has been established here to measure the technology spillover effects of export on domestic sector. finally, based on a broader framework, this dissertation went on to investigate the relationship between openness and china ' s economic growth, while the result shows that though there exists a notable dispute about how to measure the degree of china ' s openness, the index of trade dependence still maintains the better one to reflect china ' s economic openness. in the meanwhile, impulse response function ( irf ) method and forecasting errors variance decomposition ( fevd ) method, both of which are based on the vector auto - regression ( var ) system, are used here to investigate the dynamic relationship between openness and china ' s economic growth
與傳統理論不同，新增長理論和新貿易理論都強調技術進步的作用，因此本文構建了一個三部門的技術外溢效應模型（國內部門、工業製成品出口部門以及初級產品出口部門） ，考察了工業製成品出口和初級產品出口對國內非出口部門不同的技術外溢效應；第四，從更加廣闊的視野就貿易開放度與中國經濟增長問題進行研究，有關貿易開放度如何度量一直是存在較大爭議的問題，本文首先對該類研究文獻進行了較為詳盡的述評，然後運用生產函數方法對所選取的5個貿易開放度度量指標進行了檢驗，結果發現盡管一些已有研究認為外貿依存度無法真實度量一國經濟開放水平，但是本文研究結果表明外貿依存度仍是度量我國貿易開放度的較好指標，進一步採用基於var系統的脈沖響應函數法以及預測誤差方法分解法對貿易開放促進經濟增長的作用進行了動態刻畫。 -
The time - domain measure technique of vector network analyzers base on inverse chirp - z transform
逆變換矢量網路分析儀時域測量技術 -
Biology, etc. owing to many merits has not yet been used to measure parameters of gratings. the paper researches on the subject in view of current lack of it. the main tasks of the paper include : analyzing ellipsometric characteristics of gratings in detail with vector diffraction theory and ellipsometrics ; devising a reflective quarter wave plate at normal incidence according to some ellipsometric characteristics ; making use of normal simplex algorithm during ellipsometric inversion of gratings parameters, inversing ellipsometric parameters with gaussian noise of different standard deviations to simulate actually measured values with examples of isotropic metallic and anisotropic step gratings and testing that ellipsometry about gratings parameters is feasible with the range of certain precision ; discussing choice of incidence angle at length
本論文的主要工作包括：結合光柵的矢量衍射理論和薄膜的橢偏理論，詳細分析了光柵的橢偏特性；並且根據一些橢偏特性設計出一款正入射反射型單波長1 4波片；在光柵參數的橢偏反演中，引入正單純形法作為反演演算法，分別以各向同性的正弦形金屬光柵和各向異性的階梯型光柵為例，在標準橢偏值的基礎上加入不同偏差的高斯噪聲來模擬實際的橢偏測量值進行反演，在一定精度范圍內得出滿意的光柵參數，說明光柵參數的橢偏測量是可行的；還就入射角的選取問題進行了一定的探討。 -
In the recent years, along with the development of the production technology of the vector hydrophone, more and more people notice the importance of the detect and measure technology of underwater acoustic vector signal, and it is applied in more and more fields
近年來，隨著矢量水聽器的製造技術的不斷進步，使得水下聲矢量信號的探測和測量技術日益受到人們的關注，應用領域也不斷擴大。 -
Two approaches to evaluating the performance of this similarity measure and the comparison with standard cosine vector similarity measure are also described
進一步給出了對基於本體的相似性測度方法進行效果評價的2種策略以及該方法與經典餘弦向量測度方法的比較結果。 -
To improve document clustering, a document similarity measure based on cosine vector and keywords frequency in documents is proposed, but also with an input ontology
為了改進文本聚類的效果，提出了將領域知識本體和文本關鍵詞詞頻相結合的基於餘弦向量的文本相似性測度方法。 -
A method that combines category - based and keyword - based concepts for a better information retrieval system is introduced. to improve document clustering, a document similarity measure based on cosine vector and keywords frequency in documents is proposed, but also with an input ontology. the ontology is domain specific and includes a list of keywords organized by degree of importance to the categories of the ontology, and by means of semantic knowledge, the ontology can improve the effects of document similarity measure and feedback of information retrieval systems. two approaches to evaluating the performance of this similarity measure and the comparison with standard cosine vector similarity measure are also described
介紹了一種綜合各層級分類類目和對應關鍵詞來構造概念體系並用於改進信息檢索系統效果的方法.為了改進文本聚類的效果，提出了將領域知識本體和文本關鍵詞詞頻相結合的基於餘弦向量的文本相似性測度方法.該本體面向特定領域，將關鍵詞以不同權值對應于各分類類目，通過其語義知識來改進文本相似性測度以及信息檢索系統的效果.進一步給出了對基於本體的相似性測度方法進行效果評價的2種策略以及該方法與經典餘弦向量測度方法的比較結果 -
The paper forms the three information measures into measure vector as the input of cmac - cerebellar model articulation controller neural network and proposes a method of edge detection based on information measures and cmac. the edge contours generated by this method is very legible. the method has a high runtime performance and improves the resistance to noise
本文將圖像的三個信息測度作為分量組成邊緣特徵的測度向量，作為小腦模型神經元網路? cmac的輸入，提出一種基於信息測度和cmac網路的邊緣檢測方法，用該法得到的邊緣輪廓清晰，實時性好，並且抗噪能力有明顯提高：將上述邊緣檢測方法應用於無人值守變電站，提出一種瓷瓶裂紋故障監控方案。 -
Finally, the rules used to design the induction motor and set the inverter v / f curve are summarized to improve the stability of the system movement in the forth part of the dissertation, three measures are brought forward to eliminate the system low frequency oscillation. the first measure adopts pulse based dead time compensation to suppress the oscillation. as second measure, considering the motor and inverter as an integration, the discontinuous space vector modulated strategy named dpwm3 is proposed for the first time to suppress the oscillation
措施一是在總結常用死區補償方法的基礎上，提出脈沖為基礎的死區時間補償法（ pbdtc ）對死沈陽工業大學博士學位論文區進行補償，抑制系統的低頻振蕩;措施二是從逆變器與電機的機電一體化配合更加完善的角度，首次提出採用不連續空間矢量調制策略dpwm抑制系統的低頻振蕩;措施三是通過對系統中電機參數的調節，達到抑制系統低頻振蕩的目的;最後進行了實驗驗證。 -
The unique heat radiation of infrared image is generated from subcomponents. this paper analyses the natural feature of infrared image and the relationship between the shape and orientation with eigen vectors, gives the measure to classify infrared image based on object position to improve ability of compatibility in object recognition, moreover, applies the independent component for sub - region segmentation to construct new infrared image eigen vectors. the image features are processed by a support vector machine, and transform the binary svm to multi - object classifier
文中在傳統紅外熱圖像特徵量的基礎之上，通過分析紅外熱圖像自身特性以及它的形成與其自身姿態的關系，提出了對目標物體紅外熱圖像基於目標姿態的子分類，來提高目標識別中對姿態的容忍度；同時根據紅外目標子部件對圖像影響的統計獨立性，使用獨立元的方法對目標紅外熱圖像進行了子區域分割，形成了新的紅外圖像特徵量。 -
The multiply scattering method is used to simulate the propagation of waves in these structures. on the other hand, we also manufacture the samples and measure the transmittance of light with hp8510c vector network analyzer
按照這些條件，設計製作了相應的光子晶體模型，並用多重散射的方法對它們分別進行了模擬計算。 -
Analysis th to mechanism ellipse polarized light that in the specimen faced happen at the same time reflection refraction and multiplicity light beam interference, proves the principle that laser instrument of measure thickness of specimen with jones vector
摘要對橢圓偏振光在樣品表面產生的反射、折射和多光束干涉的機制進行了分析，並用瓊斯矢量論證了激光測厚儀的原理。 -
In this case, health monitoring and fault diagnosis should turn to novelty detection ( nd ) technology, which offers a solution to this problem by modeling normal data, using some distance measure and a threshold for determining novelty. this thesis describes the exploratory work of applying a powerful nd technology ? one - class support vector machines ( oc - svms ) to the detection of faults embedded in turbopump vibration data. the main contents of this thesis include : ( 1 ) many popular nd methods are introduced together with their characters and two kinds of oc - svms methods are described in detail
本文針對液體火箭發動機渦輪泵的振動信號，結合新異類檢測技術中的單類支持向量機方法，對新異類檢測在渦輪泵試車故障檢測中的應用進行了嘗試，主要研究內容包括: （ 1 ）介紹了各種流行的新異類檢測演算法的原理以及各自的特點;重點介紹了新異類檢測技術中的兩種單類支持向量機原理，並在此基礎上建立了一種基於支持向量數據描述的新異類檢測模型。 -
From the view point of the foundation of dft ( which includes the testable measure of gate - level circuits, the testable and controllable measure of functional - level, the flow and methodology of dft and so on ), the author introduce some common testing technology such as scan and bist in modern times. especially the boundary scan technology has been widely adopted in the dft of vlsi. with the special controller, the testing vector could be scanned to the corresponding ports of inner cores from the testing input ports, and the response could also be shifted to the testing output ports
本文從可測性設計的基礎理論出發（包括門級電路的可測性測度、功能級上的可測性和可控性、可測性設計的流程和方法等） ，介紹了現代常用的可測性技術，比如：掃描技術、內嵌自測試技術等，特別是邊緣掃描技術已經廣泛地應用到vlsi的可測性設計之中，它通過特定的控制器，從相應的測試輸入埠將測試向量掃描至芯核所對應的管腳，再將結果從相應的測試輸出埠掃出。 -
The measure system is based on virtual instrument technology. its hardware includes measurement flat, servo motor, vector network analyzer ( vna ) etc. and its software is programmed by labview
測量系統採用虛擬儀器的設計思想，由測量平臺、伺服電機、矢量網路分析儀、計算機等硬體組成，用labview完成了系統軟體設計。 -
A medium frequency - small size vector hydrophone of co - vibrating type is wrapped with low density compound material and in shuck only one piezoelectric ceramic accelerator is used for each channel to measure the vector components of the underwater acoustic field
摘要中頻小型同振式矢量水聽器採用低密度復合材料作為矢量通道外殼、壓電加速度計作為內部振動傳感器，以拾取水下聲場中的矢量信息。 -
Application of information measure and support vector machine in image edge detection
基於信息測度和支持向量機的圖像邊緣檢測 -
Block motion estimation using full search is computationally intensive, many fast algorithm have proposed to reduce the computation at the expense of less accuracy of motion estimation. in this paper, we present a new fast and efficient search algorithm for block motion estimation. the proposed algorithm is based on the ideas of predicted starting search point, subsampled block distortion measure, center - biased distribution of motion vector, multiple - candidate diamond search. from the experimental results, the proposed algorithm is superior to many other well - known fast algorithms in both quality performance and computational complexity
演算法採用多步搜索方法，利用相鄰塊之間的運動相關性，選擇反映當前塊運動趨勢的預測點作為初始搜索點用子采樣塊匹配失真度量來減少計算量利用運動矢量的中心傾向的分佈特性，用多侯選點鉆石形狀搜索方法來提高運動估計的速度和準確性。 -
Correcting manually for vectorized errors is needed and it is a time - consuming process. research on improving output data qualities from vectorization system is significant for enhancing performance of raster - to - vector systems. in this dissertation, the author presents a recognition quality evaluating mechanism that provides the system with the ability of measure the quality of each primitive generated
本文圍繞這一主題開展矢量化工程圖的后處理技術研究，提出「基於識別質量評價」的矢量圖素錯誤自動判別和校正的解決方案，使得圖紙掃描轉換系統不但具有產生矢量化數據的能力，而且具有對所產生的矢量數據的質量進行評價分析和自適應校正的能力。
分享友人