A backend application to manage daily expenses using Python and MongoDB. Supports CRUD operations, monthly summaries, category-wise reports, and secure transaction storage. Designed with a focus on ...

Following information is expected to be available and accurate in a file named .env with values different than the ones shown: MONGODB_CONNECTION_TEMPLATE='fmorrison ...

Many MongoDB query errors stem from minor issues such as incorrect syntax, mismatched data types, or missing indexes. Maintaining a clean document structure and using accurate field references ...

Abstract: Among the numerous direction-of-arrival (DOA) estimation bounds, the Cramér–Rao bound (CRB) is only tight in the asymptotic region. The Bayesian bound, by incorporating a priori information, ...

Abstract: Recently, sparse arrays such as nested array and coprime array have attracted much attention in the field of array signal processing. In this letter, we develop a symmetric coprime array ...