Abstract: Although Object Management Group (OMG) Unified Modeling Language (UML) introduced Object Constraint Language (OCL) to add formalism as constraints in its models, it still lacks formal ...

Abstract: Local differential privacy (LDP) provides lightweight and provable privacy protection and has wide applications in private data collection. Key-value data, as a popular NoSQL structure, ...

The NASDAQ Composite Index is up 490.18 points or 2.21% today to 22694.61 --Largest one-day point gain since Monday, May 12, 2025 --Largest one-day percentage gain since Tuesday, May 27, 2025 --Snaps ...

PostgreSQL - for data storage and querying. Power BI - for data visualization and dashboards. Microsoft Excel - for data cleaning and export. • The west region generated the highest total sales, but ...

--Off 0.08% from its 52-week high of 23043.38 hit Wednesday, Oct. 8, 2025 --Up 50.80% from its 52-week low of 15267.91 hit Tuesday, April 8, 2025 --Rose 25.94% from 52 weeks ago --Off 0.08% from its ...