商业新知 on MSN

面试被经常问的SQL窗口函数！

【面试题】 有一张“学生成绩表”，包含4个字段：班级id、学生id、课程id、成绩。 问题1： 求出每个学生成绩最高的三条记录 问题2： 找出每门课程都高于班级课程平均分的学生 【解题步骤】 1. topN问题 问题1是常见的排名问题（topN问题） ...
IEEE

An Embedded Unlabeled Data Partitioning PU-Learning Method Based on Genetic Programming

Abstract: In traditional binary classification tasks, learning algorithms conventionally distinguish positive and negative samples by leveraging fully labeled training data. However, in practical ...
IEEE

ERPC: Efficient Rule Partitioning Through Community Detection for Packet Classification

Abstract: Packet classification is crucial for network security, traffic management, and quality of service by enabling efficient identification and handling of data packets. Decision tree-based rule ...
来自MSN

Unexpected lessons from India's partition

Play War Thunder on PC and consoles, featuring animations that depict historical battles and revolutions. This video offers an educational perspective on various countries involved, such as the US, ...
Kyiv Post

White House Divided Over Ukraine: Trump Presses Partition While Tomahawk Decision Looms

WASHINGTON, DC – US President Donald Trump on Sunday reiterated his call for an immediate ceasefire between Russia and Ukraine along current front lines, demanding that Kyiv effectively cede ...
C&EN

Local-Global Synergistic Pore Space Partition in Metal–Organic Frameworks for Boosting CO

Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering, Shaanxi Normal ...