如果一个摘要是“正确的废话”（如“这份文档包含了重要的财务数据”），它在任何文档下生成的概率都很高，两项相减接近于零，互信息极低。只有当摘要高度特异性地依赖于特定文档时，互信息才会显著为正。

Kids practice rope jumping at a training center in Chang'an District of Shijiazhuang City, north China's Hebei Province, Aug.

从世界之巅的雪域苍穹，到广袤国土的生态肌理；从万米深海的幽暗静谧，到南北两极的冰封辽阔。“十四五”期间，中国自然资源科技以无畏的探索精神，构建起“上天入地、登峰下海”的全方位创新格局，为国家安全与高质量发展筑牢坚实的屏障。

LISBON, Dec. 30 (Xinhua) -- Immigration control waiting time at Lisbon airport exceeded seven hours on Tuesday, resulting in operational losses for airlines and missed passenger connections. Travelers ...

吉林大学课题组近日在岩土工程学术期刊《Engineering Geology》发表了题为“Differential freezing behavior of different pore water types in saline soil and ...

Introduction | 导读Which one is the best ...

(ECNS) -- A term borrowed from the gaming world — the "kill line" — has recently gone viral online to describe what many see ...