Table 8 Effect of auxiliary task types and loss weights on material classification performance in multitask learning

From: Material classification method of traditional Chinese painting image based on prototypical network

Auxiliary task

w

Accuracy(%)

Precision(%)

Recall(%)

F1(%)

Dynasty

0.1

67.0

68.2

67.0

67.1

0.2

63.8

64.7

63.8

63.7

0.3

69.2

70.8

69.2

69.2

0.4

73.3

75.0

73.3

73.3

0.5

79.8

79.8

79.8

79.8

0.6

82.3

82.4

82.3

82.1

0.7

82.4

82.7

82.4

82.3

0.8

86.7

87.1

86.7

86.5

0.9

80.9

83.0

80.9

80.9

Content

0.1

57.4

58.1

57.4

56.6

0.2

55.4

59.5

55.4

56.1

0.3

63.0

63.7

63.0

61.7

0.4

71.6

72.7

71.6

71.8

0.5

79.8

80.1

79.8

79.6

0.6

74.4

74.5

74.5

74.0

0.7

76.8

76.9

76.8

76.5

0.8

76.4

76.6

76.5

76.2

0.9

78.9

79.0

78.9

78.6

Technique

0.1

35.8

34.1

35.8

33.2

0.2

63.3

65.9

63.3

63.9

0.3

70.8

76.6

70.8

71.2

0.4

70.5

74.2

70.5

71.5

0.5

71.9

78.0

71.9

72.1

0.6

74.2

76.8

74.2

74.8

0.7

73.2

77.1

73.2

74.0

0.8

66.7

72.7

66.7

68.1

0.9

65.0

72.0

65.0

66.4

None

1.0

81.8

82.4

81.8

81.9