Abstract: A method, system, user equipment and computer program for predicting presence of a mobile user equipment, that includes: determining a set of time-distributed locations of a number of mutually associated mobile user equipments; calculating an aggregated location as a function of a location distribution of the set of locations; for each mobile user equipment, predicting a probability that the mobile user equipment will be present at the aggregated location at a future time; and initiating sending, to any of the mobile user equipments, a message indicating that another mobile user equipment of the mobile user equipments is predicted to be present at the aggregated location at a specific future time.

Abstract: A method of building a geo-tree includes collecting a plurality of data items having geographic and contextual tags, associating the geographic tags with the contextual tags, clustering the collected data items based on the contextual tags, classifying the clusters based on the contextual tags, building a geo-tree with each classified cluster being associated with a node on the tree and storing the geo-tree.

Abstract: A method for aggregating demographic distribution information from a plurality of networks, the method comprising, in each network: monitoring the location of each of a plurality of user devices in each of a plurality of location areas; retrieving demographic information associated with a plurality of user devices; transmitting an indication of the demographic distribution for each location area to a data collector; the method further comprising: receiving the indications at the data collector and collating the information to generate an aggregated demographic distribution map.

Abstract: Matching systems are provided that are configured to determine if a first entity received from a client device of a first user matches with at least one other entity of a plurality of entities indexed in an index in which each entity is associated with one or more index points. The system includes an application server adapted for communication with a matching engine and the client device. The matching engine is configured to index the first entity by associating the first entity with one or more index points in the index; and search for other entities matching the first entity among the plurality of entities indexed in the index by searching for other entities associated with at least one of the index points with which the first entity is associated.

Abstract: Matching systems are provided that are configured to determine if a first entity received from a client device of a first user matches with at least one other entity of a plurality of entities indexed in an index in which each entity is associated with one or more index points. The system includes an application server adapted for communication with a matching engine and the client device. The matching engine is configured to index the first entity by associating the first entity with one or more index points in the index; and search for other entities matching the first entity among the plurality of entities indexed in the index by searching for other entities associated with at least one of the index points with which the first entity is associated.

Abstract: Methods, a user equipment, a server host, a client application, computer program products, and a server computer program. These methods and components can be utilized by a location based service. One method regards triggering of events in the user equipment based on a position of the user equipment, comprising the steps of:—looking up, in a server database at least one network cell-identity associated with a predefined geographical area,—sending the network cell-identity to the user equipment,—storing the network cell-identity in a database in the user equipment,—obtaining a current network cell-identity to which the user equipment currently is connected,—comparing in the user equipment the current network cell-identity with network cell-identities stored in the database, and—retrieving content associated with the current network cell-identity if the current network cell identity is among the network cell-identities in the database.

Abstract: A method, system, user equipment and computer program for predicting presence of a mobile user equipment, that includes: determining a set of time-distributed locations of a number of mutually associated mobile user equipments; calculating an aggregated location as a function of a location distribution of the set of locations; for each mobile user equipment, predicting a probability that the mobile user equipment will be present at the aggregated location at a future time; and initiating sending, to any of the mobile user equipments, a message indicating that another mobile user equipment of the mobile user equipments is predicted to be present at the aggregated location at a specific future time.