Author

Yi-Liu Xu

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Open access Jul 2026

BAR-UNet: a boundary-aware and appearance-robust framework for polyp segmentation

Background Colorectal cancer is a leading cause of cancer-related mortality, and reliable polyp segmentation during colonoscopy is critical for early intervention. Existing deep learning segmentors often produce blurred boundaries and are sensitive to appearance variation across endoscopy devices. Methods We propose BA...

Yi-Liu Xu, Ling-Ling Liu, Mei-Wen Tang · Frontiers in Oncology · 0 citations

Jul 2026

Chain-Aware Encoding for Microservice Trace Anomaly Detection

This work instantiates CHAINLSTM, a lightweight dual-task LSTM supporting per-event online detection and shows that chain-aware encoding shifts median prediction probability on path anomalies from 0.91 to 0.002, suggesting a wider separation margin for threshold-based detection.

Yi-Liu Xu, Ziwei Hong, Zhongheng Yang et al. · arXiv.org · 4 citations