Fatemeh Rahimzadeh
2025
Tarbiat_Modares_SemEval2025_Task11_MultiLabel_Emotion_TransferLearning
Sara Bourbour
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Maryam Gheysari
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Amin Saeidi Kelishami
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Tahereh Talaei
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Fatemeh Rahimzadeh
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Erfan Moeini
Proceedings of the 19th International Workshop on Semantic Evaluation (SemEval-2025)
The SemEval-2025 Task 11 addresses multi-label emotion detection, classifying perceived emotions in text. Our system targets Amharic, a morphologically complex, low-resource language. We fine-tune LaBSE with class-weighted loss for multi-label prediction.Our architecture consists of: (i) text tokenization via LaBSE, (ii) a fully connected layer with sigmoid activation for classification, and (iii) optimization using BCEWithLogitsLoss and AdamW. Ablation studies on class balancing and data augmentation showed that simple upsampling did not improve performance, highlighting the need for more sophisticated techniques.Our system ranked 14th out of 43 teams, achieving 0.4938 accuracy, 0.6931 micro-F1, and 0.6450 macro-F1, surpassing the task baseline (0.6383 macro-F1). Error analysis revealed that anger and disgust were well detected, while fear and surprise were frequently misclassified due to overlapping linguistic cues. Our findings underscore the challenges of multi-label emotion detection in low-resource languages. Future work could explore context-aware embeddings, improved data augmentation, and adaptive loss functions.