Networks are a popular tool for representing elements in a system and their interconnectedness. Many observed networks can be viewed as only samples of some true underlying network. Such is frequently ...

The COVID-19 pandemic has infected over 38 million people around the world and is showing no signs of going away any time soon. Researchers worldwide are frantically working on developing an effective ...

The problem of estimating the variance of the ratio estimator in sampling with probability proportional to aggregate size is investigated. The form of nonnegative unbiased variance estimators is found ...

Small-scale quantum computers made from an array of interconnected waveguides on a glass chip can now perform a task that is considered hard to undertake on a large scale by classical means. Although ...

Researchers have observed the exploratory behavior of ants to inform the development of a more efficient mathematical sampling technique. In a paper published by the Royal Society, a team of Bristol ...

NASA had aimed to collect its first sample of Martian rock using the Perseverance rover yesterday, Friday, August 6, but the sampling attempt didn’t go as planned. The rover failed to collect a rock ...