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project1/Review

+Summay:
+感谢抽时间做这次作业。作业总体完成很好。
+
+Detailed Comments:
+任务1-8 中TF-IDF的feature dimension过小。请跟参考标准答案进行改进
+任务9-10: 模型预测准确率偏低，请参考标准答案修改
+任务11: 没有输出结果
+
+Overall Score: 80
+---------------------------------------
+
+Thanks for your efforts.
+- Your instructor.
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