Abstract: Some embodiments provide a program that receives, from a first sensor, a first set of sensor data that the first sensor detects from a first set of signal-transmitting devices. The program receives, from a second sensor, a second set of sensor data that the second sensor detects from a second set of signal-transmitting devices. The program processes the first set of sensor data to determine a first set of potential locations and a corresponding first set of location metrics associated with the first set of potential locations. The program processes the second set of sensor data to determine a second set of potential locations and a corresponding second set of location metrics associated with the second set of potential locations. The program identifies a location from the first and second sets of potential locations as a location of the device based on the first and second sets of location metrics.

Abstract: Some embodiments provide a program that receives, from a first sensor, a first set of sensor data that the first sensor detects from a first set of signal-transmitting devices. The program receives, from a second sensor, a second set of sensor data that the second sensor detects from a second set of signal-transmitting devices. The program processes the first set of sensor data to determine a first set of potential locations and a corresponding first set of location metrics associated with the first set of potential locations. The program processes the second set of sensor data to determine a second set of potential locations and a corresponding second set of location metrics associated with the second set of potential locations. The program identifies a location from the first and second sets of potential locations as a location of the device based on the first and second sets of location metrics.

Abstract: A situation description is received from a context engine, the situation description describing a context of a user. The user is associated with a graphical user interface, and the graphical user interface is associated with a screen area. A user interface adaption rule is identified based on the received situation description. A logical layout is determined based on the identified user interface adaptation rule. A physical layout is determined based on the logical layout. Display of the graphical user interface on the screen area is initiated based on the determined physical layout.

Abstract: The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for improving user orientation when working with spatial data on a mapping interface. One design-time computer-implemented method comprises calculating a set of screen coordinates on a mapping user interface for a compass user interface element, the compass user interface element associated with a layer selected to add to the mapping user interface; calculating map coordinates equivalent to the set of screen coordinates for the compass user interface element; determining on- and off-screen data elements associated with the added layer; calculating direction and distance to a closest number of data elements from the map coordinates of the compass user interface element; and rendering the compass user interface element on the mapping user interface.