A high-severity security flaw has been disclosed in MongoDB that could allow unauthenticated users to read uninitialized heap memory. The vulnerability, tracked as CVE-2025-14847 (CVSS score: 8.7), ...

Abstract: In this work, a novel third-order nested array is proposed for direction-of-arrival (DOA) estimation, which achieves significantly more degrees of freedom (DOF) than the existing third-order ...

Generative AI models can carry on conversations, answer questions, write stories, produce source code, and create images and videos of almost any description. Here's how generative AI works, how it's ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

I guess it's because pyarrow.nulls initialize the nested arrays to nulls, but they are not nullable so they should be initialized to default values. Alternatively, the cast / validate method should ...

Python is convenient and flexible, yet notably slower than other languages for raw computational speed. The Python ecosystem has compensated with tools that make crunching numbers at scale in Python ...

For the last eight years, the technology transformation of the UK's Department for Work and Pensions (DWP) has been one of the most significant public sector change programmes to observe. The ...

Abstract: Several sparse linear array structures have recently been proposed to enhance the identifiability of direction-of-arrival estimation by using second-order or higher even-order statistics ...

I have been running into issues with trying to use Numpy object arrays to contruct ND-Arrays of Python objects where I want to take advantage of the ND-indexing and other array features, but the ...