Project SNOW is a Python-based utility designed for conducting snowball sampling to collect Telegram channels through forwards. This script uses the Telethon library to interact with Telegram's API, ...

ABSTRACT: Snowball sampling, as a network research, has a number of advantages in registering “hidden populations”, such as: people with rare diseases and unrecognized by the community, illegal ...

A contact process first posed as a random mapping problem is discussed together with a model for the spread of a rumour through an archaic telephone system. Snowball sampling and the well-known ...

Researchers examined the association between plasma HIV-1 RNA concentrations and the incidence of HIV in injecting drug users. A prospective cohort study design was used. Participants were injecting ...

The news is full of widely (and wildly) varying estimates of the scale and scope of human trafficking. This is partly because vulnerable individuals are often hidden and are therefore hard to count.