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@@ -14,21 +14,21 @@ VECTORIZER_TYPE = 'tfidf' # '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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HIDDEN_SIZE = 64 # MLP隐藏层大小(LR忽略)
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HIDDEN_SIZE = 60 # MLP隐藏层大小(LR忽略)
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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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BATCH_SIZE = 64 # 批次大小
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BATCH_SIZE = 50 # 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_NEG = 1.58 # 负面类权重(自动计算)
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CLASS_WEIGHT_POS = 1.66 # 正面类权重(自动计算)
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CLASS_WEIGHT_NEG = 0.99 # 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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