Abstract: A method for determining a risk profile of an entity of interest, comprising interrogating a social media platform to determine a social media account corresponding to the entity of interest and generating a linked social network data structure linking the social media account corresponding to the entity of interest to one or more other social media accounts on the social media platform corresponding to other entities, where an individual link is based on one or more social media interactions between the social media account corresponding to the entity of interest and each of the one or more other social media accounts corresponding to other entities.

Abstract: Method and systems for estimating and visualising a plurality of topics in a collection of documents, wherein the collection of documents comprises a plurality of words and each document comprises one or more of the plurality of words, the method comprising: performing two rounds of topic modelling to the collection of documents, wherein the first round of topic modelling estimates a plurality of topics associated with the collection of documents and each topic comprises one or more words, and the second round identifies a plurality of themes associated with the topics, wherein each theme comprises one or more topics; and visually representing the topics and themes to a user.