Abstract: A computer-implemented method and data display system for identifying and visualizing differences between a first set comprising one or more text items and a second set comprising one or more text items is disclosed. The method includes extracting a collection of named entities from the first and second sets of one or more text items, generating a composite graph structure from the collection of named entities, the composite graph structure configured to display differences between the first and second set of text items and then displaying spatially the composite graph structure.

Abstract: A method for determining a 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. The method further involves assigning an individual link measure to one or more of the individual links of the linked network data structure, the individual link measure based on an assessment of the one or more social media interactions upon which the individual link is based on and a profile of the entity of interest based on an aggregated measure based on the linked social network data structure comprising the individual link measures.

Abstract: A computer implemented method for estimating a geographic location (geotag) from one or more short texts is described. Geo-tagging a short text post involves first determining location candidates from parsing text and then determining location resolutions (eg city, state) for each location candidate. Typically there are multiple resolutions for each candidate and then location resolution disambiguation is performed to identify the correct resolution from the set of potential resolutions This may be achieved by using context provided by other candidates within the post, as well as additional geographic context derived from the post author and their network. In particular, anchor locations may be obtained from metadata associated with the post to assist in resolution disambiguation.