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Tiberiu Sosea

12 accepted papers

2026

On the Calibration of Image Semi-Supervised Learning Models

AAAI 2026technical

Semi-supervised learning (SSL) has demonstrated high performance in image classification tasks by effectively utilizing both labeled and unlabeled data. However, existing SSL methods often suffer from poor calibration, with models yielding overconfident predictions that misrepresent actual predictio

Cited by 0SourcePDFScholar
2024

GunStance: Stance Detection for Gun Control and Gun Regulation

ACL 2024long

The debate surrounding gun control and gun regulation in the United States has intensified in the wake of numerous mass shooting events. As perspectives on this matter vary, it becomes increasingly important to comprehend individuals’ positions. Stance detection, the task of determining an author’s…

2023

Unsupervised Extractive Summarization of Emotion Triggers

ACL 2023long

Understanding what leads to emotions during large-scale crises is important as it can provide groundings for expressed emotions and subsequently improve the understanding of ongoing disasters. Recent approaches trained supervised models to both detect emotions and explain emotion triggers (events an…

2022

Multimodal Semi-supervised Learning for Disaster Tweet Classification

COLING 2022main

During natural disasters, people often use social media platforms, such as Twitter, to post information about casualties and damage produced by disasters. This information can help relief authorities gain situational awareness in nearly real time, and enable them to quickly distribute resources wher…

2022

Why Do You Feel This Way? Summarizing Triggers of Emotions in Social Media Posts

EMNLP 2022main

Crises such as the COVID-19 pandemic continuously threaten our world and emotionally affect billions of people worldwide in distinct ways. Understanding the triggers leading to people’s emotions is of crucial importance. Social media posts can be a good source of such analysis, yet these texts tend…