Abstract: Principal Component Analysis (PCA) is a workhorse of modern data science. While PCA assumes the data conforms to Euclidean geometry, for specific data types, such as hierarchical and cyclic ...

Pauls Valley High School Principal Kirk Moore was shot in the leg but still managed to tackle a former student accused of opening fire inside the school, preventing further harm Christina Coulter has ...

Newly released surveillance video shows an Oklahoma high school principal tackling a gunman in the school's lobby. Seconds after the suspect opened fire at Pauls Valley High School last week, ...

An Oklahoma principal is being hailed as a hero after tackling a gunman inside a high school earlier this month – a heart-stopping moment that was captured on video. Authorities said 20-year-old ...

PAULS VALLEY, Okla. (KFOR) – New video shows a principal tackling a gunman inside an Oklahoma high school after the former student opened fire April 7. Court documents obtained by Nexstar’s KFOR say ...

An Oklahoma high school principal "saved kids' lives" last week when he tackled a gunman and was shot in the leg in the process, the local police chief said. Subscribe to read this story ad-free Get ...

PAULS VALLEY, Okla. (KFOR)—New video shows the moment an armed former student walked into Pauls Valley school on April 7. Watch the new video above. The video shows the moment the armed suspect walks ...

PAULS VALLEY, Okla. — Parents in Pauls Valley are breathing a sigh of relief thanks to a high school principal who they are calling a hero. Pauls Valley High School Principal Kirk Moore is being ...

An Oklahoma principal who was shot in the leg while tackling a school shooter on Tuesday was hailed a hero for stopping the gunman and preventing a worse tragedy, officials said. Pauls Valley High ...

Add Yahoo as a preferred source to see more of our stories on Google. Victoria Principal was a legendary beauty on Dallas, and she hasn't changed a bit! The stunning actress, 76, who rose to fame as ...

A former high school principal in Columbia County was sentenced to just over five years in prison last month for possessing and sharing images of child sex abuse. Jeremy P. Williams, a 50-year-old ...

Abstract: In this paper, we propose a novel algorithm to solve the row-sparse principal component analysis problem without relying on any data structure assumption. Sparse principal component analysis ...