Abstract: In one embodiment, a server computing device receives a message indicating a current notification mode of a mobile computing device of a user. The received message comprises information from one or more sensors of the mobile computing device. The current notification mode is based at least in part on the information from the one or more sensors of the mobile computing device. The activity of the user is determined based at least in part on sensor information of the mobile computing device. The current notification mode of the mobile computing device is determined based on the user activity or the information from the one or more sensors of the mobile computing device. The server computing device determines whether to transmit a communication to the mobile computing device based on the current notification mode of the mobile computing device.

Abstract: In one embodiment, a method includes receiving sensor data from a number of sensors of the computing device. The sensor data corresponds to a particular state associated with the computing device. The method also includes determining a vector corresponding to the received sensor data; and comparing the vector with a pre-determined hyperplane. The hyperplane corresponds to a number of imminent uses of the computing device. The method also includes determining whether the particular state associated with the computing device corresponds to a particular one of the imminent uses of the computing device based on the comparison of the vector with the pre-determined hyperplane.

Abstract: In one embodiment, a method includes receiving a request from a client computing device of a user to access a communication network; and identifying a particular tier for the client computing device from among a number of tiers of service based at least in part on social-graph information of the user. Each tier of service includes one or more session settings of the communication network. The method also includes configuring a session of the communication network for the client computing device based at least in part on one or more of the session settings of the identified tier of service; and establishing the configured session between the client computing device and the communication network.

Abstract: In one embodiment, a computing device selects a number of location updates from users which corresponds to a place. Each location update includes data indicating a geographic location that a user was at, and a time corresponding to when the user was at the geographic location. The computing device selects a first subset of the location updates which have geographic locations within a particular geographic area. For each location update in the first subset, the computing device determines a corresponding user and time. The computing device selects a second subset of location updates, each location update in the second subset corresponding to a user from the first subset, and a time within a threshold time of the time of the location update in the first subset. The computing device generates a probability map based on a distribution of geographic locations corresponding to the location updates in the second subset.

Abstract: In one embodiment, a method includes receiving sensor data, while a mobile electronic device associated with a member of a social-networking system is in a first operation state, from one or more sensors of the mobile electronic device and obtaining characteristic information maintained by the social-networking system, the social-networking system being remote from the mobile electronic device. The method also includes verifying that a current user of the mobile electronic device is the member by comparing the sensor data to the characteristic information. The method also includes, in response to the verifying, transitioning from the first operation state to a second operation state.

Abstract: In one embodiment, a method includes receiving sensor data from a number of sensors of the computing device. The sensor data corresponds to a particular state associated with the computing device. The method also includes determining a vector corresponding to the received sensor data; and comparing the vector with a pre-determined hyperplane. The hyperplane corresponds to a number of imminent uses of the computing device. The method also includes determining whether the particular state associated with the computing device corresponds to a particular one of the imminent uses of the computing device based on the comparison of the vector with the pre-determined hyperplane.

Abstract: In one embodiment, a method includes accessing at least two determinations of the location of a mobile computing device, with each determined location having been determined without reference to explicit location information manually input by a user of the mobile computing device. At least one first determined location is compared with at least one second determined location, with comparisons being made between location determinations made based on different location determination input. A functionality associated with the mobile computing device is allowed if the first determined location corresponds to at least one of the second determined locations.

Abstract: In one embodiment, a method includes determining one or more bandwidth constraints on a bandwidth of a communication channel available to a first computing device; determining a plurality of data items to transmit from the first computing device; ranking each data item based at least in part on an affinity between a user and an originator of the data item in a social-networking system; selecting, based at least in part on the ranking of the data items, one or more particular ones of the data items to transmit from the first computing device from the first computing device; and writing the particular ones of the data items to a queue for subsequent transmission.

Abstract: In particular embodiments, one or more computer systems of a social-networking system receive a first video stream from a content source, receive social content from a social graph of the social-networking system, and generate an overlay area comprising at least a portion of the social content. The social graph includes a plurality of nodes and edges connecting the nodes, the nodes comprising user nodes that are each associated with a particular user of the social-networking system. The one or more computer systems of the social-networking system determine a placement for the overlay area within the first video stream, generate a modified video stream using at least the first video stream and the overlay area, and provide the modified video stream for display on a display device. The overlay area is placed within the modified video stream according to the determined placement.

Abstract: In one embodiment, a method includes, by one or more computing devices of an online social network, receiving, from a client system at a first location, an audio input from an unknown user, identifying a first user of the online social network who is proximate to the first location, identifying the unknown user as a second user of the online social network based on a comparison of the audio input to one or more voice recordings of one or more candidate users stored by the online social network, respectively, wherein each voice recording comprises audio data for auditory identification of a unique user of the online social network, and wherein each candidate user is within a threshold degree of separation of the first user within the online social network; and sending customized content to one or more of the first user or the second user based on their social-networking information.

Abstract: In one embodiment, a method includes implementing an ad hoc network protocol comprising transmitting, from a first mobile device, one or more neighbor messages that includes a first user identifier corresponding to a first user of the first mobile device, wherein the first user identifier corresponds to a user account of the first user in a social networking system, receiving, at the first mobile device, one or more second neighbor messages from one or more second mobile devices that include second user identifiers corresponding to respective second users of the one or more second mobile devices, wherein the second user identifiers correspond to respective user accounts of one or more second users in the social networking system, and storing, at the first mobile device, information received in the one or more second neighbor messages for access by one or more applications hosted on the first mobile device.

Abstract: In one embodiment, a computing device selects a number of location updates from users which corresponds to a place. Each location update includes data indicating a geographic location that a user was at, and a time corresponding to when the user was at the geographic location. The computing device selects a first subset of the location updates which have geographic locations within a particular geographic area. For each location update in the first subset, the computing device determines a corresponding user and time. The computing device selects a second subset of location updates, each location update in the second subset corresponding to a user from the first subset, and a time within a threshold time of the time of the location update in the first subset. The computing device generates a probability map based on a distribution of geographic locations corresponding to the location updates in the second subset.

Abstract: In one embodiment, device status information is received from a mobile device of a first user. The device status information may include: information related to power for the device, information related to network connectivity of the device, or a notification mode of the device. Outgoing messages may be identified to be sent to the first user. A value may be computed for each of the outgoing messages. The computed value may be based on an affinity score determined with respect to an originator of the message and the first user. Based on the computed value, at least one of the outgoing messages may be selected for placement into an outgoing message queue. Upon the detection of a triggering condition, the selected messages may be sent to the mobile device. The triggering condition may be based on the device status information and the respective values of the outgoing messages.

Abstract: In one embodiment, a method includes, by software of a computing device, dynamically identifying a particular region of a display of the computing device. The method also includes, by the software and through a device driver of the computing device, dynamically adjusting one or more particular ones of a plurality of backlighting components of the display associated with the particular region.

Abstract: In one embodiment, a computing device selects a number of location updates from users which corresponds to a place. Each location update includes data indicating a geographic location that a user was at, and a time corresponding to when the user was at the geographic location. The computing device selects a first subset of the location updates which have geographic locations within a particular geographic area. For each location update in the first subset, the computing device determines a corresponding user and time. The computing device selects a second subset of location updates, each location update in the second subset corresponding to a user from the first subset, and a time within a threshold time of the time of the location update in the first subset. The computing device generates a probability map based on a distribution of geographic locations corresponding to the location updates in the second subset.

Abstract: In one embodiment, a method includes receiving a request at a wireless access point from a client system to access a network through the wireless access point. The wireless access point sends an identifier associated with the client system to a social-networking system, the social-networking system including user profiles arranged in one or more social graphs. The social graphs store relationships between the user profiles. The method further includes receiving at the wireless access point from the social-networking system an authorization determination. The authorization determination is based upon a first user profile of the plurality of user profiles. The first user profile includes the identifier associated with the client system. The method further includes providing the client system with access to the network through the wireless access point in accordance with the authorization determination.

Abstract: In one embodiment, a computing system receives a first set of location updates sent by a first user. Each location update corresponds to a user visit to a particular place, and each location update is determined by a mobile client device of the corresponding user via a first or a second location method. The computing system receives a second set of location updates sent by a second user, sent via only the first location method. A place-visit factor for the second user is calculated based on the total number of unique places visited by the second user within a particular period of time, a first number of places visited by the first user determined from location updates sent via the first location method, and a second number of places visited by the first user determined from location updates sent via the second location method.

Abstract: In particular embodiments a social networking system captures data associated with video content provided to a first user of a social-networking system, identifies, using the captured data, the video content provided to the first user, and updates a graph of the social-networking system to associate the first user with the identified video content. The graph of the social-networking system has a plurality of nodes and edges connecting the nodes. The nodes of the graph include user nodes that are each associated with a particular user of the social-networking system.

Abstract: In particular embodiments, one or more computer systems of a social-networking system determine available media content from one or more content sources and query a social graph of a social-networking system for social content associated with a user of the social-networking system. The social graph includes nodes and edges connecting the nodes. The nodes include user nodes that are each associated with a particular user of the social-networking system. The one or more computer systems of the social-networking system determine, using the social content and the available media content, a plurality of social coefficients for the user, determine, based on the determined social coefficients, recommended media content for the user, and provide the recommended media content for display in a programming guide on a display device.

Abstract: In one embodiment, a method comprising by one or more computing devices, transmitting, from a first mobile device, a first message that includes a first user identifier corresponding to a first user of the first mobile device, wherein the first user identifier corresponds to a user account of the first user in a social-networking system, receiving, at the first mobile device, one or more second messages that includes a second user identifier corresponding to a second mobile device within a direct radio connectivity of the first mobile device, wherein the second user identifier corresponds to a respective user account of a second user in the social-networking system, and storing, at the first mobile device, information received in the second message for access by one or more applications hosted on the first mobile device.