數值編碼 的英文怎麼說
中文拼音 [shǔzhíbiānmǎ]
數值編碼
英文
numeric code- 數 : 數副詞(屢次) frequently; repeatedly
- 編 : Ⅰ動詞1 (編織) weave; plait; braid 2 (組織; 排列) make a list; arrange in a list; organize; gr...
- 碼 : Ⅰ名詞(表示數目的符號或用具) a sign or object indicating number; code Ⅱ量詞1 (指一件事或一類的...
- 數值 : numerical value; numerial number; figure; magnitude; value數值表 numerical tabular; 數值天氣預報 ...
- 編碼 : encoded; code; coded; encrypt; codogram; coding編碼表 encode table; 編碼程序 builder; 編碼尺 code...
-
For the anticounterfeiting of printings ( such as certificate ), the existent many ways ( such as rainbow holograms ) are not available as the need for special use : anti - distortion and anti - copy. basing in the double - random - phase transform, this article puts forward a new way that two - dimensional bar code is used as anticounterfeiting label with anti - printing ? scanning and anti - damage properties. the major job are : ( 1 ). basing in the ascii codes, numerals and alphabets are encoded and subsequently transformed into two - value bar code matrix figure. later, using amplitude - based double - random - phase transform, the enciphered gray scale figure is formed. by computer simulation ( 4f system ) and printing as well as scanning ( 20 times ), we get the result that the gray scale figure with little miscoding rate ( 0. 0026 ) by “ matrix expanding way ”
本文主要開展了以下三項研究工作: ( 1 ) .用自定義編碼方案,將數字和字母( ascii碼)轉換成二值條碼圖;對該圖形進行振幅型雙隨機相位加密變換,得到原信息的加密灰度圖;通過4f光學系統計算機模擬和列印-掃描實驗,證明本文提出的「矩陣擴展法」灰度圖具有較小的誤碼率,對於20次列印-掃描實驗,誤碼率不大於0 . 0026 。By whitening the covariance matrix of flat ambiguity, correlation between ambiguity components, the number of local extrema of cost function is reduced. the search program getting into precocity is avoided by suitable encoding and genetic operation
通過白化處理模糊度,減少模糊度搜索中指標函數的局部極值點,採用適當的編碼和遺傳操作使得在種群個體較少的情況下避免搜索陷入早熟。Based on the clustering property of the basis function of sparse coding, a basis function initialization method using fuzzy c mean algorithm is proposed to help the energy function of sparse coding to converge to a better local minimum for recognition. experimental results show that the classification and the sparseness of the features are both improved
經過模糊c均值聚類初始化后的基函數能夠讓稀疏編碼的能量函數收斂到一個更有利於識別的局部最小點,試驗結果表明特徵的分類性和稀疏性都得到了提高。The fifth chapter use huffman coding method of the row difference data and lifting wavelet transform and spiht ( set partitioning in hierarchical tree ) coding method to realize the diagnostically compression of mfl data by judging the significance of data using changing threshold and dynamic area threshold of mfl data
在第五章通過數據變化閾值和數據動態范圍閾值判斷數據重要性,分別採用行差分數據的霍夫曼編碼方法以及提升小波變換和層次樹集分割( spiht )編碼方法實現了數據的檢測無損壓縮。At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +
首先改進了虹膜預處理方法,實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法,準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景,去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面,本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。At first, based on the simple genetic algorithm, an improved ga which adopts a combination of emigration policy and adaptive operator is presented. results of numerical optimization show that the improved ga is effective on preventing premature problem
本文在基本遺傳演算法的基礎上首先研究了浮點編碼遺傳演算法在數值優化中的應用,通過引進「移民策略」和自適應運算元相結合的方法,改進了基本遺傳演算法在後期進化緩慢的問題,極大地減少了早熟性收斂的現象。At fixed time intervals, the gts data are decoded by the hko main computer and quality control checks are applied. objective analyses are then carried out for data at various standard pressure levels to produce grid point values. charts showing flight level winds, temperatures and other information are made available at the airport meteorological office ( amo ) for the provision of flight documentation and airway winds
天文臺的主電腦定時對接收到的資料進行譯碼及質量控制檢查,跟著對各個標準氣壓層面的資料進行客觀分析,計出各網格點的數值,從而製作各巡航高度的風、溫度及其他資料的天氣圖,讓機場氣象所用來編制飛行氣象文件和航道風。At fixed time intervals, the gts data are decoded by the hko main computer and quality control checks are applied. objective analyses are then carried out for data at various standard pressure levels to produce grid point values. charts showing flight level winds, temperatures and other information are made available at the airport meteorological office for the provision of flight documentation and airway winds
天文臺的主電腦定時對接收到的資料進行譯碼及質量控制檢查,跟著對各個標準氣壓層面的資料進行客觀分析,計出各網格點的數值,從而製作各巡航高度的風溫度及其他資料的天氣圖,讓機場氣象所用來編制飛行氣象文件和航道風。In improved uep scheme, the syntax elements belonged to luminance parts and chrominance parts was reassigned to different data partitions. those packets containing syntax elements belonged to luminance parts were got error protection at high level so as to guarantee their correctness during transmitting in error - prone network. simulation has shown that using proposed scheme, the packing tradeoff is decreased 8240 bytes in error - free channel and also the output bits and bit rate of coded video stream are decreased 2. 70kbits and 0. 33 kbps respectively
模擬實驗表明,本方案能在無噪通道中有效降低編碼器端8240位元組的打包開銷和2 . 70kbit的輸出比特數以及0 . 33kbps的比特率,而在有噪通道中可使解碼輸出重構視頻圖像的視覺質量得到一定程度的提高,亮度分量峰值信噪比可增加近1db 。In this text, we first do some research on the genetic algorithm about clustering, discuss about the way of coding and the construction of fitness function, analyze the influence that different genetic manipulation do to the effect of cluster algorithm. then analyze and research on the way that select the initial value in the k - means algorithm, we propose a mix clustering algorithm to improve the k - means algorithm by using genetic algorithm. first we use k - learning genetic algorithm to identify the number of the clusters, then use the clustering result of the genetic clustering algorithm as the initial cluster center of k - means clustering. these two steps are finished based on small database which equably sampling from the whole database, now we have known the number of the clusters and initial cluster center, finally we use k - means algorithm to finish the clustering on the whole database. because genetic algorithm search for the best solution by simulating the process of evolution, the most distinct trait of the algorithm is connotative parallelism and the ability to take advantage of the global information, so the algorithm take on strong steadiness, avoid getting into the local
本文首先對聚類分析的遺傳演算法進行了研究,討論了聚類問題的編碼方式和適應度函數的構造方案與計算方法,分析了不同遺傳操作對聚類演算法的性能和聚類效果的影響意義。然後對k - means演算法中初值的選取方法進行了分析和研究,提出了一種基於遺傳演算法的k - means聚類改進(混合聚類演算法) ,在基於均勻采樣的小樣本集上用k值學習遺傳演算法確定聚類數k ,用遺傳聚類演算法的聚類結果作為k - means聚類的初始聚類中心,最後在已知初始聚類數和初始聚類中心的情況下用k - means演算法對完整數據集進行聚類。由於遺傳演算法是一種通過模擬自然進化過程搜索最優解的方法,其顯著特點是隱含并行性和對全局信息的有效利用的能力,所以新的改進演算法具有較強的穩健性,可避免陷入局部最優,大大提高聚類效果。In rsdm, binary patterns are replaced by real - valued patterns, accordingly avoiding the coding process ; the outer learning rule is replaced by regression rule, therefore the model has not only the ability of pattern recognition but the ability of function approximation. the prearrangement of the address array bases on the distribution of patterns. if the distribution of patterns is uniform. then the address array is prearranged randomly, otherwise predisposed with the theory of genetic algorithm and the pruneing measure so as to indicate the distribution of patterns and improve the network performance. non - linear function approximation, time - series prediction and handwritten numeral recognition show that the modified model is effective and feasible
在rsdm中,以實值模式代替二值模式,避免了實值到二值的編碼過程:以回歸學習規則代替外積法,使該模型在具有識別能力的同時具有了對函數的逼近能力;地址矩陣的預置根據樣本的分佈採取不同方法,若樣本均勻分佈,則隨機預置,否則利用遺傳演算法的原理和消減措施來預置地址矩陣,使之反映樣本的分佈,改善網路的性能。So this part is dealt with separately. dcpm method is employed to improve the quality of image coding with making full of the relativity of the wavelet coefficients. according to the different importance degree and vision character of the high frequency wavelet coefficients, different thresholds are applied to remove small coefficients ; then mannos module are applied to remove the visual redundancy ; in order to produce more zero - tree, horizontal and vertical wavelet coefficients are transformed accordingly to improve the compression ratio
對于小波變換后的小波系數的高頻部分,根據其分佈特性和人眼的視覺特性,採用視覺模型對零樹量化過程的閾值進行修正,有效地去除視覺冗餘;對各高頻子圖採用多級樹集合分割的零樹編碼方法,有效地利用系數編碼剩餘符號,進一步提高壓縮比。Think about it : when accessing data from a file, the programmer would have to code instructions to open the file, start a loop, read a record, check whether the empno field equals the proper value, check for end of file, go back to the beginning of the loop, and so on
想想看:當訪問文件中的數據時,程序員必須編碼指令來打開文件、開始一個循環、讀取記錄、檢查empno欄位是否等於適當的值、檢查文件結尾、回到循環的開頭等。Class using encoded data and a value that identifies whether the extension is critical
使用編碼數據和一個標識擴展是否重要的值初始化Object as the attribute type and a specified asn. 1 encoded data as the attribute value
對象用作屬性類型,並將指定的asn . 1編碼數據用作屬性值,對Class using a specified string representation of an object identifier as the attribute type and a specified asn. 1 encoded data as the attribute value
通過將指定的對象標識符( oid )字元串表示形式用作屬性類型,並將指定的asn . 1編碼數據用作屬性值,對The data structure type was built for the photograph data, the international calculation criteria were adopted for the numeric data, the specific file table and file explanation was established for the text data, the date express type was established for the date data, and the definition of any specialty words and phrases was kept consistent
其中,對圖片數據確定數據結構類型;對數值數據統一採用國際標準的計量單位;對文字數據擬定具體的文檔編碼表及文檔說明;對日期型數據確定日期表達的形式;任何專業名詞、術語的定義都嚴格保持概念的一致。The author expatiated on the basic structure, coding manners, decoding rules, fitness function selection, self - adapted mutation and crossover operator, the judging flow of chromosome feasibility of the algorithm, finally, put forward the computing result with pattern of data table and gantt graph
詳細地闡述了演算法的基本結構、編碼方式、解碼規則、適值函數的選取、自適應變異和交叉運算元的設計、染色體可行性的判斷流程,最後以數據表和甘特圖的方式給出了計算結果。According to the standard of kddcup ' 99 and by adopting numeric mixed coding, 41 features of the captured network packets are extracted and transferred into numerical form which can be accepted by neural network in this paper, we present a misuse detection model based on hybrid neural network and decision tree
根據第三屆國際知識發現和數據挖掘競賽( kddcup ' 99 )標準,對截獲的網路數據包進行41維特徵抽取,並採用混合數值編碼方法,使這些特徵轉化為能被神經網路處理的數值形式。At first, this article introduces the dicom information model and dicom network protocol architecture ; specify the definition of dicom service and object, message data coding, encapsulation of protocol data unite ( pdu ) and the mechanism of message exchange, etc. and then synoptically specifies protocol data unite, presentation data value ( pdv ), encapsulation of various compose items and the class clusters for this program
本文首先介紹了dicom標準信息模型及其網路協議構架,並且深入淺出地介紹dicom的服務和對象定義、消息數據編碼、協議數據單元pdu ( protocoldataunite )的封裝以及dicom消息的交換機制等基本原理。然後概括說明了模塊中的協議數據單元、表示數據值pdv ( presentationdatavalue ) 、各個組成條目的封裝以及在程序中為此定義的類簇。分享友人