Using mobile crowdsourcing and geotagged social media data to study people’s affective responses to environments

When travelling in space, humans perceive the environment and evaluate itaffectively. This chapter illustrates how mobile crowdsourcing and social mediadata can be used to study people's affective responses to different environments.It also showcases how these affective responses can be used to provide a betterunderstanding of human−environment interaction, as well as to enable smartgeospatial applications (particularly navigation systems). This chapter also discussessome essential challenges that need further investigations when crowdsourcingpeople's affective responses. Some of these challenges are participationmotivating, data quality and privacy.