線性映射的核 的英文怎麼說
中文拼音 [xiànxìngyìngshèdehé]
線性映射的核
英文
kernel of linear mapping- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 映 : 動詞1. (因光線照射而顯出物體的形象) reflect; mirror; shine 2. (放映) project a movie
- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 的 : 4次方是 The fourth power of 2 is direction
- 核 : 核構詞成分。
- 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
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By using kernel functions, the data in the original space was mapped into a high - dimensional feature space, in which more features of the data were exposed so that clustering could be performed efficiently
核函數的非線性映射使得原始數據的特徵更完整地顯現出來,從而能夠更客觀準確地聚類。As for the undivided linear sample space, the kernel function is needed to map onto another high dimension linear space
對于線性不可分的樣本空間,需要尋找核函數,將線性不可分的樣本集映射到另一個高維線性空間。The data is nonlinearly mapped into high dimensional kernel space at first. then a set of feature vectors can be found such that the bhattacharyya distance of the classes mapped into lower dimensional feature space by feature vectors is maximized. thus the upper
該演算法採用核函數把樣本非線性映射到高維核空間,在核空間中尋找一組最優的特徵向量,把樣本線性映射到低維特徵空間,使類別之間的bhattach刪a距離最大,從而使特徵空間中樣本的baycs分類誤差上界最小。The mapping the pilot training from the lower dimension space to high dimension space, and in the high dimension space, the wave - let kernel function is adopted, according to recursion least square criteria, the lower linear inseparable problem is convert to the separable problem
然後將根據結構風險遞歸二乘最小化準則回歸估計支持向量機原理,把導頻訓練序列映射到高維空間,並在高維空間採用結構小波核函數,達到了將低維空間的非線性估計轉化為高維空間的線性估計的目的。In detail, they are bit - interleaved coded modulation ( with iterative decoding ), low - density parity - check codes and stf technology. by the performance analysis of bicm ( - id ), which can make code and modulation optimal separately, and achieve maximum possible coding diversity as well as modulation gain, guidelines for its design and an easy algorithm for siso are proposed. design of capacity - approaching of ldpc codes and efficient encoding of them as well as several kinds of its decoding algorithms are investigated
具體的講,就是討論了基於比特交織的編碼調制技術,並給出了映射方式的設計準則以及核心模塊siso的一種簡單的f - map演算法;研究了編碼最小漢明距隨碼長線性增加的ldpc碼的幾個方面的問題,包括接近香農限碼子集的度分佈對的設計、有效編碼器的實現和各種譯碼演算法的優缺點,並對基於ldpc碼的bicm應用於ofdm傳輸系統中的性能進行了模擬。分享友人