So sánh phương pháp

	Điểm F1	F1 có trọng số
Lĩnh vực	Đánh giá mô hình	Đánh giá mô hình
Họ	MCDM	MCDM
Năm ra đời	1979	2000s
Người khởi xướng	C. J. van Rijsbergen	Multi-class evaluation community
Loại	Evaluation metric	Evaluation metric
Công trình gốc	van Rijsbergen, C. J. (1979). Information Retrieval (2nd ed.). Butterworth-Heinemann.	Powers, D. M. (2011). Evaluation: From Precision, Recall and F-Measure to ROC, Informedness, Markedness and Correlation. Journal of Machine Learning Technologies, 2(1), 37-63.
Tên gọi khác	F-measure, Harmonic Mean	Support-weighted F1
Liên quan	5	3
Tóm tắt	The F1-score is the harmonic mean of precision and recall, providing a single metric that balances both concerns. It was introduced by van Rijsbergen in information retrieval and has become a standard metric for evaluating classification models where both precision and recall are important.	Weighted F1 computes the F1-score for each class and then takes a weighted average, where weights are proportional to the number of samples in each class (support). It provides a middle ground between macro and micro-averaging.