所有项目

• Compression-Based Tokenization Improves Language Modeling of Hierarchical Genomic Structure

  作者: Yiping Wang，Jing Wang，Junhao Zhu，Fengyao Zhai，Hu Zhu，Ziwei Dai，Zengru Di，Da Zhou，Yu Liu

  摘要:

  Tokenization is a critical design choice in genomic language modeling. Widely used schemes---character-level encoding, fixed-length $k$-mers, and greedy subword algorithms such as BPE---show intrinsic limitations on DNA that are magnified by the small four-letter alphabet. To address this, we adapt Ladderpath, an Algorithmic Information Theory method that identifies nested and hierarchical...

  关键词: Tokenization; Algorithmic Information Theory; Language Model

  发布于: 首次发布 2025-12-11 | 最后更新 2025-12-11

  指标: 查看次数：195  |  下载次数：89  |  收藏次数：0

• Performance Evaluation of the SmartBrain: A Wearable PET System for Human Brain Imaging

  作者: Han Liu，Wenkang Qu，Da Liang，Xin Yu，Yuejie Lin，Haoyu Zou，Siyuan Han，Zhijun Zhao，Ying Lin，Xiaoyin Zhang，Jinyong Tao，Wenbin Li，Huiping Zhao，Yibin Zhang，Gongning Luo，Ningyi Jiang，Qiyu Peng

  摘要:

  Background. Positron Emission Tomography (PET) is a vital medical imaging tool for studying in vivo metabolism. However, conventional PET systems are limited in their inability to image during free movement. Therefore, we have developed a wearable brain PET system for real-time imaging, called SmartBrain. Methods. The...

  关键词: Wearable PET; Human brain imaging; NEMA; SmartBrain

  发布于: 首次发布 2025-12-04 | 最后更新 2025-12-04

  指标: 查看次数：281  |  下载次数：131  |  收藏次数：0