{"type": "article", "title": "STN-TGAT: Top-K Portfolio Construction via Prior-Guided Graph Attention with Learnable Soft-Threshold Sparsification", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/stn-tgat-top-k-portfolio-construction-via-prior-guided-graph-attention-with-soft", "original_source": "https://arxiv.org/abs/2607.19385", "published": "2026-07-23T04:00:00+00:00", "accessed": "2026-07-23", "id": "stn-tgat-top-k-portfolio-construction-via-prior-guided-graph-attention-with-soft"}