generated from LufsX/Experiment-kNN
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-8
@@ -41,7 +41,7 @@ name = "唐一鸣"
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# 这里写自己的代码实现
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# 这里写自己的代码实现
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def classify(input_vector, dataSet, labels, k=3):
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def classify(input_vector, dataSet, labels, k=1):
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"""
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"""
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KNN 分类算法。
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KNN 分类算法。
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@@ -84,8 +84,8 @@ def load_dataset(directory):
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file_list = os.listdir(directory)
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file_list = os.listdir(directory)
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num_files = len(file_list)
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num_files = len(file_list)
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# 初始化数据矩阵,假设每个图像转化为 28x28=784 的向量
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# 初始化数据矩阵,假设每个图像转化为 32x32=1024 的向量
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data_matrix = np.zeros((num_files, 784))
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data_matrix = np.zeros((num_files, 1024))
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for i, filename in enumerate(file_list):
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for i, filename in enumerate(file_list):
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# 提取文件名中的数字作为标签
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# 提取文件名中的数字作为标签
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@@ -113,13 +113,13 @@ def img_to_vector(filename):
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"""
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"""
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# 初始化一个 1D 向量
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# 初始化一个 1D 向量
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vector = np.zeros((1, 784))
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vector = np.zeros((1, 1024))
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with open(filename, 'r') as file:
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with open(filename, 'r') as file:
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for i in range(28):
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for i in range(32):
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line = file.readline()
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line = file.readline()
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for j in range(28):
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for j in range(32):
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vector[0, 28 * i + j] = int(line[j])
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vector[0, 32 * i + j] = int(line[j])
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return vector
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return vector
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@@ -162,7 +162,7 @@ if __name__ == "__main__":
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"00000000000000000111100000000000"
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"00000000000000000111100000000000"
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)
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)
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predicted_label = classify(
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predicted_label = classify(
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np.array([int(char) for char in test_data]).reshape(1, 784),
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np.array([int(char) for char in test_data]).reshape(1, 1024),
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train_data,
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train_data,
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train_labels,
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train_labels,
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)
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)
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