5 papers
AlphaFace: High Fidelity and Real-time Face Swapper Robust to Facial Pose
Jongmin Yu, Hyeontaek Oh, Zhongtian Sun +3
Existing face-swapping methods often deliver competitive results in constrained settings but exhibit substantial quality degradation when handling extreme facial poses. To improve…
From News to Returns: A Granger-Causal Hypergraph Transformer on the Sphere
Anoushka Harit, Zhongtian Sun, Jongmin Yu
We propose the Causal Sphere Hypergraph Transformer (CSHT), a novel architecture for interpretable financial time-series forecasting that unifies \emph{Granger-causal hypergraph st…
Quantifying Semantic Shift in Financial NLP: Robust Metrics for Market Prediction Stability
Zhongtian Sun, Chenghao Xiao, Anoushka Harit +1
Financial news is essential for accurate market prediction, but evolving narratives across macroeconomic regimes introduce semantic and causal drift that weaken model reliability.…
Adversarially Domain-adaptive Latent Diffusion for Unsupervised Semantic Segmentation
Jongmin Yu, Zhongtian Sun, Chen Bene Chi +2
Semantic segmentation requires extensive pixel-level annotation, motivating unsupervised domain adaptation (UDA) to transfer knowledge from labelled source domains to unlabelled or…
Breaking Down Financial News Impact: A Novel AI Approach with Geometric Hypergraphs
Anoushka Harit, Zhongtian Sun, Jongmin Yu +1
In the fast-paced and volatile financial markets, accurately predicting stock movements based on financial news is critical for investors and analysts. Traditional models often str…