This repo provides a set of useful functions for operating on sparsely stored arrays. This is extremely useful for significantly reducing storage and minorly improving runtime when you have high ...

Abstract: We present a Mathematics of Arrays (MoA) and ψ-calculus derivation of the memory-optimal operational normal form for ELLPACK sparse matrix-vector multiplication (SpMV) on GPUs. Under the ...

Abstract: Sparse array design of multiple-input–multiple-output (MIMO) radar with high-resolution and ambiguity-free characteristics is a challenging task, which often needs to satisfy multiple design ...

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Launched by the Metropolitan Police in 2012, the Gangs Matrix is a database of suspected gang members in London. © Amnesty International Launched by the Metropolitan ...

This story is a complementary profile to the 2025 Hypebeast100, our annual recognition of the creatives shaping fashion and culture today. Explore the full Hypebeast100 list, award winners, and this ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

How black is black? An ideally black material would absorb light perfectly at all angles for all wavelengths. Using arrays of carbon nanotubes, researchers based in New York have now engineered a ...

This important study combines optogenetic manipulations and wide-field imaging to show that the retrosplenial cortex controls behavioral responses to whisker deflection in a context-dependent manner.