Abstract: Recommender systems (RSs) have gained significant attention for their ability to model user preferences and predict future trends. Collaborative filtering (CF), particularly through ...

Sherri Gordon, CLC is a certified professional life coach, author, and journalist covering health and wellness, social issues, parenting, and mental health. She also has a certificate of completion ...

Abstract: Concerning the stability analysis for systems with time-varying delays, a negative-determination method for a class of generalized-convex (generalized-concave) matrix-valued polynomial ...

PERC电池产业链层级清晰且协同紧密。上游以硅料、硅片及银浆等辅材为主，国产化企业保障原材料稳定供应；中游聚焦电池片制造与组件封装，头部企业主导产能且推动技术优化；下游对接各类光伏电站与储能场景，分布式光伏等需求拉动行业增长。整体呈现 ...