Abstract: A social networking system receives information describing locations associated with a plurality of its users. Based on information identifying each user and a location associated with each user, the social networking system generates and stores hash values. For example, the social networking system maintains various geo-tiles that each identify geographic areas and generates a hash value based on a user identifier and an identifier of a geo-tile including the location associated with the user. Based on the hash values and locations associated with one or more users, the online system determines a number of unique users associated with locations included in a geographic region. When determining the number of unique users, the online system accounts for a rate at which the online system updates location information associated with various users.

Abstract: Systems and methods are provided for enabling access to digital content based on geographic locations visited by mobile device users. One method includes receiving a promotion associated with premium digital content, access information, and one or more locations in which the premium digital content is accessible.

Abstract: Systems and methods are disclosed for electronic distribution of electronic content. The method includes retrieving data indicating transmission of electronic content to a plurality of electronic devices within a geographical zone extending between an inner boundary extending around a target location and an outer boundary extending around the target location; receiving data indicating presence of one of the plurality of electronic devices in a target geographical zone, the target geographical zone being located within the inner boundary; determining a time difference between transmission of the electronic content to the one of the plurality of electronic devices and the one of the plurality of electronic devices' presence in the target geographical zone; and determining an electronic device conversion occurred when the time difference is less than a threshold period of time associated with the electronic content.

Abstract: Systems and methods are provided for determining release weights for geographic locations and specific times for selected users, and optimizing the timing of message notifications for a mobile device based on those release weights. The release weights may be determined based 1) generalized factors, 2) factors individualized for a particular mobile device user, and/or 3) real-time factors. These release weights are calculated to represent a user's likeliness to launch a client application from a message notification at a given time and geographic location.

Abstract: A method and system for improving route finding are described. Aspects of the disclosure determine a bearing for a client device using a compass. The determined bearing is used to optimize route finding operations performed by the client device. The bearing may be mapped to a road graph and used in conjunction with a location of the client device to determine an efficient route to a destination. For example, aspects of the method and system may identify a nearest turn in the direction the client device is traveling without the need to obtain multiple location readings to identify a direction of travel.

Abstract: Methods and systems for determining a mode of travel are described herein. Aspects of the disclosure allow a client device to determine a current mode of travel, and to configure the client device in an optimal manner for providing location-based services, such as route-finding, based on the determined method of travel. The client device is configured using the mode of travel, where a set of configuration options associated with each particular mode of travel. Aspects of the system and method may dynamically determine the mode of travel using sensor data received via the client device.

Abstract: A method and system for improving route finding are described. Aspects of the disclosure determine a bearing for a client device using a compass. The determined bearing is used to optimize route finding operations performed by the client device. The bearing may be mapped to a road graph and used in conjunction with a location of the client device to determine an efficient route to a destination. For example, aspects of the method and system may identify a nearest turn in the direction the client device is traveling without the need to obtain multiple location readings to identify a direction of travel.

Abstract: An online system identifies a conversion of an advertisement when a client device associated with an online system user is within a threshold distance of a physical location associated with the advertisement. The client device sends obfuscated information identifying the user associated with the client device and the location of the client device to an independent third party when the client device is within a threshold distance of the physical location associated with the advertisement. Using information from the client device, the third party requests information from the online system identifying one or more groups including the user. Based on information identifying groups including various online system users, the third party generates information identifying conversions associated with different groups. The online system may determine effectiveness of various advertisements using the information from the third party identifying conversions associated with different groups.

Abstract: Systems and methods are disclosed for electronic distribution of electronic content. The method may include receiving, from an advertiser or content provider, a request to transmit electronic content to a plurality of electronic devices of a desired subset of individuals. The electronic content may relate to a target location affiliated with the advertiser or content provider. The method also may include retrieving population density data for the target location and surrounding area, and correlating the subset of individuals with the population density. In addition, the method also may identifying a geographical zone extending from the target location to a perimeter location. The zone may have a size based on the population density correlated with the subset of individuals. The method my further include receiving an indication that the electronic device of a user has entered the geographical zone, and transmitting electronic content to the electronic device of the user.

Abstract: Method, apparatus and system for self-aligning components, sub-assemblies and/or assemblies wherein actuators are used to physically move the components, sub-assemblies and/or assemblies such that an appropriate alignment is provided. The efficiency of the alignment may be determined with respect to a qualitative measurement (e.g., bit error rate, optical intensity and the like) of an output signal.

Abstract: A location of a mobile device is determined using Wi-Fi signals. The location of a moving mobile device may be initially determined using a satellite navigation system. When the speed at which the mobile deice is moving falls below a threshold, a determination is made as to whether Wi-Fi signals are receivable at the mobile device. If Wi-Fi is receivable, Wi-Fi signals are used to determine the location of the mobile device rather than the satellite navigation system. The Wi-Fi signals are continuously or repeatedly used to identify the location of the mobile device until the speed at which the mobile device is moving surpasses the threshold or until Wi-Fi signals are no longer receivable at the mobile device. Since Wi-Fi sensors of mobile devices consume less power than satellite navigation sensors, the power consumption of the mobile device is reduced when mobile device location is determined using Wi-Fi signals.