Provided is a method for triggering an action on a mobile device of a user. In one aspect, the method includes determining a current sub-period using the current time and determining at least one sub-region of destination amongst sub-regions of the geographical classification according to probabilities of departure of the user, from the current sub-region, to each sub-region of the geographical classification, for each sub-period of the time classification, and according to the current sub-period. The method may also involve obtaining a list of activities related to the user, determining at least one predicted activity according to probabilities, for each activity of the list of activities, that the user will engage in said activity, in the at least one sub-region of destination, for the sub-period corresponding to a starting time of said activity and triggering at least one action according to the at least one predicted activity.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A method for triggering an action, according to a current time and a current geographical location of a mobile device of a user, comprising: obtaining a geographical classification defining geographical regions, each geographical region being further subdivided into sub-regions; determining a current sub-region, amongst the sub-regions of the geographical classification, using the current geographical position; obtaining a time classification defining time periods, each time period being further subdivided into sub-periods; determining a current sub-period, amongst the sub-periods of the time classification, using the current time; determining at least one sub-region of destination amongst sub-regions of the geographical classification according to probabilities of departure of the user, from the current sub-region, to each sub-region of the geographical classification, for each sub-period of the time classification, and according to the current sub-period; obtaining a list of activities related to the user; determining at least one predicted activity according to probabilities, for each activity of the list of activities, that the user will engage in said activity, in the at least one sub-region of destination, for the sub-period corresponding to a starting time of said activity; and triggering at least one action according to the at least one predicted activity. 2. The method of claim 1, wherein the sub-periods are defined according to information about activities related to the user over a past time interval. 3. The method of claim 1, wherein the sub-periods are defined according to information about locations and moves related to the user over a past time interval. 4. The method of claim 1, wherein the sub-period of the time classification relates to periods of the day. 5. The method of claim 4, wherein the time periods of the time classification relates to days. 6. The method of claim 4, wherein the time periods of the time classification relates to weeks, each weeks being subdivided into days, the sub-period of the time classification relating to periods of the day. 7. The method of claim 1, wherein the at least one action comprises providing, on the mobile device, geographical and/or navigation services according to the at least one sub-region of destination. 8. The method of claim 1, wherein the at least one action comprises providing, on the mobile device, organizational and management services related to the at least one predicted activity. 9. The method of claim 1, wherein the at least one action comprises providing information to the user, on the mobile device, related to the at least one predicted activity and/or to the at least one sub-region of destination. 10. The method of claim 1, wherein the at least one action comprises providing information to the user, on the mobile device, related to similar sub-regions to the at least one sub-region of destination. 11. The method of claim 10, wherein the similar sub-regions are identified taking into consideration the at least one predicted activity. 12. A computer program comprising instructions for causing implementation of the method according to claim 1, when said program is run by the processor. 13. A support for storing a computer program comprising a set of instructions causing implementation of the method according to claim 1, when the stored information is read from said support and run by a processor. 14. A mobile device configured to trigger an action, according to a current time and a current geographical location, said mobile device being adapted to be manipulated by a user, the mobile device comprising: a geographical classifier configured to: obtain a geographical classification defining geographical regions; each geographical region being further subdivided into sub-regions, and determine a current sub-region, amongst the sub-regions of the geographical classification, using the current geographical position; a time classifier configured to: obtain a time classification defining time periods, each time period being further subdivided into sub-periods, and determine a current sub-period, amongst the sub-periods of the time classification, using the current time; a geographical prediction controller, coupled to the geographical classifier and the time classifier, and configured to: determine at least one sub-region of destination amongst sub-regions of the geographical classification according to probabilities of departure of the user, from the current sub-region, to each sub-region of the geographical classification, for each sub-period of the time classification, and according to the current sub-period; an activity prediction controller, coupled to the geographical prediction controller and the time classifier, and configured to: obtain a list of activities related to the user, and determine at least one predicted activity according to probabilities, for each activity of the list of activities, that the user will engage in said activity, in the at least one sub-region of destination, for each sub-period of the time classification, and according to the current sub-period; and an action trigger, coupled to the activity prediction controller, configured to: trigger at least one action according to the at least one predicted activity.