Abstract: This article introduces quaternion non-negative matrix factorization (QNMF), which generalizes the usual non-negative matrix factorization (NMF) to the case of polarized signals.

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician ...

Minnesota. (AP) — Feedback from parents and educators on the first draft of new math standards for Minnesota K-12 grades has been overwhelmingly negative to the references to the state’s American ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. Edward Doolittle, ...

Long before humans carved numbers into clay tablets or scratched equations onto stone, people in the ancient Near East were already dividing space, counting patterns, and thinking in mathematical ...

Think math is just about numbers and equations? Think again. According to a review analyzing 49 studies with 37,654 participants, reading comprehension has a significantly strong effect on students' ...

Hans Daniel Jasperson has over a decade of experience in public policy research, with an emphasis on workforce development, education, and economic justice. His research has been shared with members ...

In the Federal Reserve's battle between fighting inflation and unemployment, the latter side carried the day Wednesday and could also have an edge heading into 2026. At his Wednesday news conference, ...

The first observer to catalog differences in star brightnesses was Greek astronomer Hipparchus. He created a catalog around 135 B.C.E. of roughly 850 stars divided into six ranges. He called the ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...

Some 111,084 people applied for asylum in the UK in the year to June 2025, the highest number for any 12-month period since current records began. More than 90,000 people were waiting for an initial ...