Abstract: A method for retrieving a lost entity by means of a cell based wireless telecommunication network is disclosed, comprising determining a presence probability distribution of the lost entity for a predetermined geographical area; and transmitting information of the lost entity to at least one set of predetermined retrieving entities, as a function of the probability distribution, by means of the cell based wireless telecommunication network. Related systems, devices and wireless communication networks have also been provided.

Abstract: The present invention relates to a method for managing electronic information and related devices where electronic information is forwarded from at least one electronic information source of a plurality of electronic information sources towards at least one terminal of at least one corresponding user of a plurality of terminals of corresponding users through a communications network. The at least one electronic information source of the plurality of electronic information sources sends electronic information towards the at least one terminal of at least one corresponding user. The terminal of a first user and terminals of users related to this first user send their electronic information preferences towards a community interest management module. The community interest management module subsequently determines community information preferences based on the information preferences of the first user and based on the information preferences of the users related to the first user.