This article describes how pictographs (or pictograms) can be an important means to communicate information about natural disasters to people that are lacking the capability to understand written text. This does not only include illiterates, but also foreigners not speaking the local language....

Volunteered geographic information (VGI) has the potential to provide much-needed information for emergency management stakeholders. However, stakeholders often lack scalability to identify useful and high-quality text content from the often-overwhelming amount of information. To solve this...