Abstract: A database system (2) stores a database in the random-access memory of a plurality of computer devices (4) by organizing an efficient and robust distribution.

Abstract: A trajectory determining device is designed for determining trajectory data (10) based on signaling data associating mobile communication device identifiers, time markers and signaling identifiers, at least some of the signaling identifiers designating a location cell. These trajectory data are used in order to identify pairs of movement markers associated with a same mobile communication device identifier, and corresponding signaling data, the time markers of which are between the time markers of a given pair, are reprocessed in order to return classified movement data (16) associating movement type data and departure and arrival data determined from location cells associated with the signaling data and a group of chosen locations.

Abstract: A trajectory determining device is designed for determining trajectory data (10) based on signaling data associating mobile communication device identifiers, time markers and signaling identifiers, at least some of the signaling identifiers designating a location cell. These trajectory data are used in order to identify pairs of movement markers associated with a same mobile communication device identifier, and corresponding signaling data, the time markers of which are between the time markers of a given pair, are reprocessed in order to return classified movement data (16) associating movement type data and departure and arrival data determined from location cells associated with the signaling data and a group of chosen locations.

Abstract: A communication device includes: a memory for receiving event data associating signaling data, a time marker and a mobile telephony identifier or a computer network identifier; an extractor arranged to calculate trajectory data on the basis of the signaling data that signal event data comprising time markers designating consecutive times associated with a single mobile telephony identifier or a single computer network identifier; and a matcher arranged to calculate a similarity value between trajectory data, and to associate at least one mobile telephony identifier and one computer network identifier based on the similarity value calculated for trajectory data associated therewith.

Abstract: A device for determining path comprises: a memory (4) for receiving signalling data associating mobile-communication-device identifiers, time markers and signalling identifiers, at least some of the signalling identifiers designating a location cell; a classifier (6) capable, for a given mobile-communication-device identifier, of marking the signalling data that are associated therewith with a movement marker indicating a state chosen from a list comprising at least one movement and one short stop; an analyzer (8) capable of processing the marked signalling data depending on the movement markers in order to produce path data associating, on the one hand, a given mobile-communication-device identifier and, on the other hand, a series of movement markers, each of which is associated with a location cell and with a time marker, so that two movement markers, the time markers of which indicate that they are successive, designate separate states, by applying at least one processing rule.

Abstract: A database system (2) stores a database in the random-access memory of a plurality of computer devices (4) by organizing an efficient and robust distribution.

Abstract: The geolocation device comprises: a requester (10) arranged to obtain signaling data associating identifiers of mobile communication devices (6) and signaling identifiers, at least some of the signaling identifiers designating a location cell, a selector (12) arranged to determine a list of location cells neighboring a target location cell, based on the set of cells situated at a chosen distance from the target location cell, the chosen distance being defined in a metric manner or on the basis of the topology of the cellular network, a sorter (14) arranged to select from the requester's data (10) at least one mobile communication device identifier (9) detected as being associated with a signaling identifier relating to a location cell belonging to the list of neighboring location cells determined by the selector (12), and a tracker (16) arranged to launch active location cell monitoring of a mobile communication device (9) whose mobile device identifier has been selected by the sorter (14).