Abstract: The super augmented nested array (SANA) is a new sparse array (SA) proposed by expanding, changing the inter-element spacing (IES), and splitting the nested array (NA). The proposed SANA ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

A young computer scientist and two colleagues show that searches within data structures called hash tables can be much faster than previously deemed possible. Sometime in the fall of 2021, Andrew ...

This indeed goes to the crux if the issue. If we consider the non-nested case first for a moment, there are essentially three ways we can convert a tz-aware timestamp array to pandas/numpy: as numpy ...

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 ...

A look at some of the best database and RDBMS tools for Java software developers. Learn more about Java and database programming. Java developers often rely on specific database tools to efficiently ...

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 ...

In the last Mongo Matters column, we looked at MongoDB’s new SQL interface for querying data in MongoDB Atlas. Almost all of the “NoSQL” databases today support some form of SQL interface in order to ...