Vocabulary cross-contamination between entertainment content and disaster-related social media posts

During disasters, local governments use Twitter (X) to obtain information on damages and rescue requests. However, due to the large volume of entertainment information posted on Twitter, the collection of disaster information can be hindered even during disasters. Specifically, while entertainment posts such as those related to video games contribute to content and community activation, in case of a disaster, they can obstruct the collection of disaster information by local governments. We refer to this case as contamination by entertainment content and aim to analyze it separately. Specifically, this study investigates the contamination of information collected via Twitter during disasters by entertainment content and identifies methods to prevent the impact of this contamination. As a preliminary step, it analyzes the Twitter posts related to entertainment content during disasters and examines 1) which types of content are easily contaminated and 2) whether these types can be separated from others.