Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between responses of exposed mobile devices and responses of non-exposed mobile devices, which devices are selected based on a cluster analysis to match the distributions of the exposed mobile devices and the non-exposed mobile devices in an attribute space. Each response of a mobile device can be computed based on applying, at a time instance, an anti-symmetric weight function having an exponential distribution to a time series of visitation measurements to generate a response corresponding to the time instance, and summing the responses corresponding to time instances falling within the predetermined period of time as the response of the mobile device.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between responses of exposed mobile devices and responses of non-exposed mobile devices, which devices are selected based on a cluster analysis to match the distributions of the exposed mobile devices and the non-exposed mobile devices in an attribute space. Each response of a mobile device can be computed based on applying, at a time instance, an anti-symmetric weight function having an exponential distribution to a time series of visitation measurements to generate a response corresponding to the time instance, and summing the responses corresponding to time instances falling within the predetermined period of time as the response of the mobile device.

Abstract: Systems and methods including mobile devices determining their locations using a location determination system, such as a global positioning system. A set of locations, including locations of one or more mobile devices, are identified by their coordinates on the surface of the Earth. The set of locations are efficiently organized into a graph of locations connecting to neighboring locations with edges representing distances to their neighboring locations. For each respective location, a computing device combines coordinates of the respective location into an identifier of a cell that contains the respective location without floating point computations, and stores cell-location data associating respective cells with respective locations.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between responses of exposed mobile devices and responses of non-exposed mobile devices, which devices are selected based on a cluster analysis to match the distributions of the exposed mobile devices and the non-exposed mobile devices in an attribute space. Each response of a mobile device can be computed based on applying, at a time instance, an anti-symmetric weight function having an exponential distribution to a time series of visitation measurements to generate a response corresponding to the time instance, and summing the responses corresponding to time instances falling within the predetermined period of time as the response of the mobile device.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between responses of exposed mobile devices and responses of non-exposed mobile devices, which devices are selected based on a cluster analysis to match the distributions of the exposed mobile devices and the non-exposed mobile devices in an attribute space. Each response of a mobile device can be computed based on applying, at a time instance, an anti-symmetric weight function having an exponential distribution to a time series of visitation measurements to generate a response corresponding to the time instance, and summing the responses corresponding to time instances falling within the predetermined period of time as the response of the mobile device.

Abstract: Systems and methods including computing patterns of visitation to predefined regions by converting coordinates of mobile devices to cell identifiers and searching a database to find matches between cell identifiers representing regions and the cell identifiers of the device locations. Devices having similar visitation patterns are divided into two groups, based on status data of whether or not information about a region has been transmitted to respective users. The visitation patterns after the transmission are compared by a system between the two groups to measure a difference. Identifiers of devices, users, or households are initially provided to the system without the status data to obtain attributes associated individually with the identifiers. In return, the system is provided with the status data associated with the attributes individually for the devices, users, or households but without sufficient information to map the status data individually to the identifiers of the devices, users, or households.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between the average response of exposed mobile devices and the average response of non-exposed mobile devices, where each of the exposed/non-exposed mobile devices is selected for having a home location or a visitation pattern within an activity area associated with the predetermined region, and each response of a mobile device is based on determining whether locations of the mobile device is within the predetermined region and counts of visitations to the predetermined region by the mobile device in different time intervals.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between the average response of exposed mobile devices and the average response of non-exposed mobile devices, where each response of a mobile device is computed by: determining a sequence of time instances of the mobile devices being at locations within the region, generating a time series of visitation measurements from the time sequence, applying at a time instance an anti-symmetric weight function having an exponential distribution to the time series to generate the response corresponding to the time instance, and summing the responses corresponding to time instances falling within the predetermined period of time as the response of the mobile device.

Abstract: Systems and methods including computing patterns of visitation to predefined regions by converting coordinates of mobile devices to cell identifiers and searching a database to find matches between cell identifiers representing regions and the cell identifiers of the device locations. Devices having similar visitation patterns are divided into two groups, based on status data of whether or not information about a region has been transmitted to respective users. The visitation patterns after the transmission are compared by a system between the two groups to measure a difference. Identifiers of devices, users, or households are initially provided to the system without the status data to obtain attributes associated individually with the identifiers. In return, the system is provided with the status data associated with the attributes individually for the devices, users, or households but without sufficient information to map the status data individually to the identifiers of the devices, users, or households.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. Locations of the mobile devices and predefined locations/regions that have been visited by the mobile devices during a period of time are efficiently organized into a location graph that identifies the neighbors of predefined locations, distances to neighbors, and visitation counts of mobile devices to the predefined locations during the period of time. Keyword values for keywords representing user attributes are assigned to mobile devices and the predefined locations. Based on the location graph, the keyword values are propagated via the location graph, from neighbors to predefined locations, from mobile devices to predefined locations, and from predefined locations to mobile devices, to incrementally improve the accuracy of the keyword values over a number of time periods.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between the average response of exposed mobile devices and the average response of non-exposed mobile devices, where each response of a mobile device is computed by: determining a sequence of time instances of the mobile devices being at locations within the region, generating a time series of visitation measurements from the time sequence, applying at a time instance an anti-symmetric weight function having an exponential distribution to the time series to generate the response corresponding to the time instance, and summing the responses corresponding to time instances falling within the predetermined period of time as the response of the mobile device.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between the average response of exposed mobile devices and the average response of non-exposed mobile devices, where each of the exposed/non-exposed mobile devices is selected for having a home location or a visitation pattern within an activity area associated with the predetermined region, and each response of a mobile device is based on determining whether locations of the mobile device is within the predetermined region and counts of visitations to the predetermined region by the mobile device in different time intervals.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. Locations of the mobile devices and predefined locations/regions that have been visited by the mobile devices during a period of time are efficiently organized into a location graph that identifies the neighbors of predefined locations, distances to neighbors, and visitation counts of mobile devices to the predefined locations during the period of time. Keyword values for keywords representing user attributes are assigned to mobile devices and the predefined locations. Based on the location graph, the keyword values are propagated via the location graph, from neighbors to predefined locations, from mobile devices to predefined locations, and from predefined locations to mobile devices, to incrementally improve the accuracy of the keyword values over a number of time periods.

Abstract: Systems and methods including mobile devices determining their locations using location determination units, such as GPS receivers. A computing device generates a statistical measurement of location pattern changes in relation to a predetermined region for a predetermined period of time. The measurement is generated from a difference between responses of exposed mobile devices and responses of non-exposed mobile devices, which devices are selected based on a cluster analysis to match the distributions of the exposed mobile devices and the non-exposed mobile devices in an attribute space. Each response of a mobile device can be computed based on applying, at a time instance, an anti-symmetric weight function having an exponential distribution to a time series of visitation measurements to generate a response corresponding to the time instance, and summing the responses corresponding to time instances falling within the predetermined period of time as the response of the mobile device.

Abstract: Systems and methods including mobile devices determining their locations using a location determination system, such as a global positioning system. A set of locations, including locations of one or more mobile devices, are identified by their coordinates on the surface of the Earth. The set of locations are efficiently organized into a graph of locations connecting to neighboring locations with edges representing distances to their neighboring locations. For each respective location, a computing device combines coordinates of the respective location into an identifier of a cell that contains the respective location without floating point computations, and stores cell-location data associating respective cells with respective locations.

Abstract: Systems and methods including computing patterns of visitation to predefined regions by converting coordinates of mobile devices to cell identifiers and searching a database to find matches between cell identifiers representing regions and the cell identifiers of the device locations. Devices having similar visitation patterns are divided into two groups, based on status data of whether or not information about a region has been transmitted to respective users. The visitation patterns after the transmission are compared by a system between the two groups to measure a difference. Identifiers of devices, users, or households are initially provided to the system without the status data to obtain attributes associated individually with the identifiers. In return, the system is provided with the status data associated with the attributes individually for the devices, users, or households but without sufficient information to map the status data individually to the identifiers of the devices, users, or households.

Abstract: Systems and methods including computing patterns of visitation to predefined regions by converting coordinates of mobile devices to cell identifiers and searching a database to find matches between cell identifiers representing regions and the cell identifiers of the device locations. Devices having similar visitation patterns are divided into two groups, based on status data of whether or not information about a region has been transmitted to respective users. The visitation patterns after the transmission are compared by a system between the two groups to measure a difference. Identifiers of devices, users, or households are initially provided to the system without the status data to obtain attributes associated individually with the identifiers. In return, the system is provided with the status data associated with the attributes individually for the devices, users, or households but without sufficient information to map the status data individually to the identifiers of the devices, users, or households.

Abstract: A system and method for identifying optimal system architectures for a reference application are provided. The system and method comprise executing a reference application and a plurality of test applications on a current system architecture and sampling performance data for each of the applications. The performance data is used to compute an application signature for each application. A similarity element is derived from the application signatures that illustrates the similarity between each application and every other application. Using a similarity threshold and an algorithm, a subset of test applications that are similar to the reference application are derived.

Abstract: A system and method for identifying optimal system architectures for a reference application are provided. The system and method comprise executing a reference application and a plurality of test applications on a current system architecture and sampling performance data for each of the applications. The performance data is used to compute an application signature for each application. A similarity element is derived from the application signatures that illustrates the similarity between each application and every other application. Using a similarity threshold and an algorithm, a subset of test applications that are similar to the reference application are derived.

Abstract: A system and method for identifying optimal system architectures for a reference application are provided. The system and method comprise executing a reference application and a plurality of test applications on a current system architecture and sampling performance data for each of the applications. The performance data is used to compute an application signature for each application. A similarity element is derived from the application signatures that illustrates the similarity between each application and every other application. Using a similarity threshold and an algorithm, a subset of test applications that are similar to the reference application are derived.