Abstract: It is an object of the subject matter to disclose a method performed on two or more mobile devices comprising: detecting a movement on a sending mobile device, said sending mobile device is one of the two or more mobile devices, said movement is performed on the sending mobile device; comparing the movement performed on the sending mobile device with a positioning map, wherein the positioning map comprises relative locations of the two or more mobile devices; determining a relative location of the target mobile device on the positioning map; transmitting the data from the sending mobile device to the target mobile device.

Abstract: The subject matter discloses a method performed on two or more mobile devices comprising obtaining a magnetic azimuth value of a mobile device of the two or more mobile devices; obtaining a physical orientation value of the mobile device of the two or more mobile devices; broadcasting the magnetic azimuth value and the physical orientation value from the mobile device, wherein each mobile device of the two or more mobile devices are broadcasting the magnetic azimuth value and the physical orientation value to another mobile device of the two or more mobile devices; receiving the magnetic azimuth value and the physical orientation value, wherein each mobile device of the two or more mobile devices receives the magnetic azimuth value and the physical orientation value of other mobile devices of the two or more mobile devices; determining a relative location of the two or more mobile devices, according to the magnetic azimuth value and the physical orientation value of each mobile device of the two or more mobil

Abstract: A method of resolving a plurality of database queries. The method includes accumulating a plurality of queries, determining overlapping portions of the queries that relate to one or more common data attributes, resolving at least two of the determined overlapping portions of the queries together, and preparing responses to the queries based on the resolution of the at least two overlapping portions.

Abstract: A database server accelerator, comprising a plurality of query execution machines, adapted to resolve database queries, a plurality of respective memory units, adapted to cache data from the database, each memory unit being accessible only by its respective execution machine, and a data-manager adapted to determine the data to be cached in each of the plurality of memory units.