The Philly Tweet Dashboard is an ongoing project to provide demographic and topic information of tweets referencing Philadelphia. All tweets used in the analysis contain the term Philly or Philadelphia.
The charts above provide an insight into the topics that are most prevalent in tweets referencing Philadelphia on the given date. The chart on the left provides a visualization of the distance between topics. (Chuang, et al.,2012) Essentially this is a measure of how different one topic is from another. The plot on the right shows the overall frequency of the term (red) and the estimated frequency in the given topic (blue). The relevance metric, λ, determines the terms which will be displayed. In general: