作业11
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__pycache__/config.cpython-313.pyc
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__pycache__/config.cpython-313.pyc
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__pycache__/dataset.cpython-313.pyc
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__pycache__/model_numpy.cpython-313.pyc
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__pycache__/train.cpython-313.pyc
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config.py
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config.py
@@ -10,7 +10,7 @@
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DATA_DIR = 'data/ChnSentiCorp' # 数据集路径
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MAX_FEATURES = 3000 # 词表最大容量
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MAX_SEQ_LEN = 100 # 句子最大长度(词数)
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VECTORIZER_TYPE = 'tfidf' # 'tfidf' 或 'bow'(向量化方式)
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VECTORIZER_TYPE = 'bow' # 'tfidf' 或 'bow'(向量化方式)
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# ==================== 模型相关 ====================
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MODEL_TYPE = 'mlp' # 'mlp' 或 'lr'(模型类型)
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@@ -19,19 +19,19 @@ NUM_CLASSES = 2 # 类别数(正面/负面二分类)
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KEEP_PROB = 1.0 # Dropout保留概率(LR忽略,设为1即可)
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# ==================== 训练相关 ====================
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LEARNING_RATE = 0.05 # 学习率
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NUM_EPOCHS = 100 # 训练轮数
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LEARNING_RATE = 0.9 # 学习率
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NUM_EPOCHS = 300 # 训练轮数
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BATCH_SIZE = 64 # 批次大小
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# ==================== 类别权重(解决数据不平衡问题)====================
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USE_CLASS_WEIGHT = True # True=启用类别权重, False=不启用(对比用)
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# 权重计算公式: n_samples / (n_classes * n_class_i)
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# 正面评论多所以权重小,负面评论少所以权重大
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CLASS_WEIGHT_POS = 0.73 # 正面类权重(自动计算)
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CLASS_WEIGHT_POS = 0.67 # 正面类权重(自动计算)
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CLASS_WEIGHT_NEG = 1.58 # 负面类权重(自动计算)
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# ==================== 实验相关 ====================
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RUN_COMPARISON = False # True=运行对比实验, False=运行单个模型
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RUN_COMPARISON = True # True=运行对比实验, False=运行单个模型
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COMPARE_MODELS = ['lr', 'mlp'] # 要对比的模型列表
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COMPARE_VECTORS = ['bow', 'tfidf'] # 要对比的向量化方式
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data/ChnSentiCorp/ChnSentiCorp_htl_all.csv
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data/ChnSentiCorp/ChnSentiCorp_htl_all.csv
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屏幕截图 2026-05-19 121009.png
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屏幕截图 2026-05-19 121009.png
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