Table 6 F1-score performance among proposed and existing SA schemes.

From: Optimized hierarchical CLSTM model for sentiment classification of tweets using boosted killer whale predation strategy

Emotion classes

Proposed OTCNLSTM

BERT-CNN

LSTM

CNN

Anger

90.2

85.5

80.1

78.1

Happy

90

84

80.3

78.3

Neutral

90

84.6

80.1

78.1

Sad

90.4

84.8

80.3

78.3

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