K-最近鄰演算法的意思、翻譯和例句

是什麼意思

K-最近鄰演算法(K-Nearest Neighbors,簡稱 KNN)是一種基於實例的學習演算法,主要用於分類和回歸問題。它的基本思想是:給定一個新的樣本,通過計算它與訓練集中所有樣本的距離,找出最近的 K 個鄰居,然後根據這 K 個鄰居的標籤來進行預測。在分類問題中,通常選擇 K 個鄰居中最多的類別作為預測結果;在回歸問題中,則取 K 個鄰居的平均值作為預測值。這種演算法的優點是簡單易懂,且不需要假設數據的分佈,但缺點是計算量大,尤其在數據集較大時,效率較低。

依照不同程度的英文解釋

  1. A method to find similar things.
  2. A way to classify data based on closeness.
  3. A technique that looks at nearby points to make decisions.
  4. A method that uses the closest examples to predict outcomes.
  5. An algorithm that identifies the nearest neighbors to classify or predict.
  6. A non-parametric method used for classification and regression by finding the nearest data points.
  7. A machine learning technique that classifies data based on the majority label of its closest neighbors.
  8. A supervised learning algorithm that predicts the label of a data point based on the labels of its nearest neighbors.
  9. A distance-based algorithm that assigns a class to a data instance based on the classes of its K nearest neighbors.
  10. A classification method that determines the category of a data point by evaluating the categories of its closest data points.

相關英文單字或片語的差別與用法

1:KNN Algorithm

用法:

這是 K-最近鄰演算法的簡稱,廣泛應用於機器學習及數據挖掘領域。它的原理是基於距離度量,通常使用歐幾里得距離或曼哈頓距離來計算樣本之間的相似度。在實際應用中,KNN 演算法可以用於圖像識別、文本分類等多種任務。

例句及翻譯:

例句 1:

KNN 演算法在圖像分類中表現出色。

The KNN algorithm performs excellently in image classification.

例句 2:

使用 KNN 演算法可以快速找到最接近的樣本。

Using the KNN algorithm, you can quickly find the nearest samples.

例句 3:

KNN 演算法的優點是簡單易實現。

The advantage of the KNN algorithm is its simplicity and ease of implementation.

2:K-Nearest Neighbors

用法:

這是 K-最近鄰演算法的全名,強調了它的基本原理,即通過查找最近的 K 個鄰居來進行預測。在許多機器學習問題中,這種方法因其直觀性而受到青睞,特別是在數據集不大且標籤明確的情況下。

例句及翻譯:

例句 1:

K-Nearest Neighbors 是一種常用的分類方法。

K-Nearest Neighbors is a commonly used classification method.

例句 2:

在這個案例中,我們將使用 K-Nearest Neighbors 進行數據分析。

In this case, we will use K-Nearest Neighbors for data analysis.

例句 3:

K-Nearest Neighbors 演算法可以有效解決多類別分類問題。

The K-Nearest Neighbors algorithm can effectively solve multi-class classification problems.

3:Nearest Neighbor Algorithm

用法:

這是 K-最近鄰演算法的另一種稱呼,強調了它的鄰近性原則。這種算法在許多應用中都能找到,包括模式識別、推薦系統等。它的運作方式是計算樣本之間的距離,然後選擇最近的鄰居進行預測。

例句及翻譯:

例句 1:

Nearest Neighbor Algorithm 在推薦系統中經常被使用。

The Nearest Neighbor Algorithm is often used in recommendation systems.

例句 2:

這種算法的效率取決於數據集的大小。

The efficiency of this algorithm depends on the size of the dataset.

例句 3:

Nearest Neighbor Algorithm 可以幫助我們找到最相似的項目。

The Nearest Neighbor Algorithm can help us find the most similar items.