6 papers
Latent-Regime Bias Auditing for Volatility Forecasting
Arthur Chagas, Pedro Bento, Yan Aquino +3
Volatility forecasts are commonly evaluated with aggregate accuracy metrics such as RMSE and MAE, but these metrics can hide conditional failures that matter for risk management. T…
Inference-Time Decision Calibration for Temporal Classification
Arthur Chagas, Arthur Buzelin, Yan Aquino +4
Temporal classification errors are often treated as representation failures, but they can also arise from how available evidence is converted into decisions. This paper proposes a…
POLAR:A Per-User Association Test in Embedding Space
Pedro Bento, Arthur Buzelin, Arthur Chagas +7
Most intrinsic association probes operate at the word, sentence, or corpus level, obscuring author-level variation. We present POLAR (Per-user On-axis Lexical Association Re-port),…
A CNN-based Local-Global Self-Attention via Averaged Window Embeddings for Hierarchical ECG Analysis
Arthur Buzelin, Pedro Robles Dutenhefner, Turi Rezende +9
Cardiovascular diseases remain the leading cause of global mortality, emphasizing the critical need for efficient diagnostic tools such as electrocardiograms (ECGs). Recent advance…
Analyzing Political Discourse on Discord during the 2024 U.S. Presidential Election
Arthur Buzelin, Pedro Robles Dutenhefner, Marcelo Sartori Locatelli +10
Social media networks have amplified the reach of social and political movements, but most research focuses on mainstream platforms such as X, Reddit, and Facebook, overlooking Dis…
Discord Unveiled: A Comprehensive Dataset of Public Communication (2015-2024)
Yan Aquino, Pedro Bento, Arthur Buzelin +12
Discord has evolved from a gaming-focused communication tool into a versatile platform supporting diverse online communities. Despite its large user base and active public servers,…