Abstract: A social networking system presents questions to a user on an interface associated with the social networking system to elicit information about the user that is missing from the user's profile or is otherwise outdated. The questions are selected based on a number of factors, such as the need for or value of the information item, probability of a response, or cost of collecting the information item. In presenting the selected question, the social networking system prompts a user for information about the user in a an interface associated with a page from the social networking system, an application external to the social networking system, or using a push notification or prompt. The questions may be formatted in various ways, such as an explicit question, confirmation, a selection of responses, or social context to encourage the user to respond to the question.

Abstract: A social networking system presents questions to a user on an interface associated with the social networking system to elicit information about the user that is missing from the user's profile or is otherwise outdated. The questions are selected based on a number of factors, such as the need for or value of the information item, probability of a response, or cost of collecting the information item. In presenting the selected question, the social networking system prompts a user for information about the user in a an interface associated with a page from the social networking system, an application external to the social networking system, or using a push notification or prompt. The questions may be formatted in various ways, such as an explicit question, confirmation, a selection of responses, or social context to encourage the user to respond to the question.

Abstract: Particular embodiments of a method comprise providing one or more ideograms (e.g., written characters, symbols or images that represent an idea or thing) for insertion into a message. A request may be received from a user for a restricted one of the ideograms. A determination may be made as to whether the user is authorized to access the restricted ideogram. This determination may be based on whether the user is a member of a group of authorized users, whether an attribute of the user meets a restriction requirement, or whether the request comprises an authorization code or token. If the user is authorized to access the restricted ideogram, then the restricted ideogram may be displayed to the user in association with the message. Otherwise, a restricted-content response may be generated.

Abstract: A social networking system presents questions to a user on an interface associated with the social networking system to elicit information about the user that is missing from the user's profile or is otherwise outdated. The questions are selected based on a number of factors, such as the need for or value of the information item, probability of a response, or cost of collecting the information item. In presenting the selected question, the social networking system prompts a user for information about the user in a an interface associated with a page from the social networking system, an application external to the social networking system, or using a push notification or prompt. The questions may be formatted in various ways, such as an explicit question, confirmation, a selection of responses, or social context to encourage the user to respond to the question.

Abstract: A social networking system presents questions to a user on an interface associated with the social networking system to elicit information about the user that is missing from the user's profile or is otherwise outdated. The questions are selected based on a number of factors, such as the need for or value of the information item, probability of a response, or cost of collecting the information item. In presenting the selected question, the social networking system prompts a user for information about the user in a an interface associated with a page from the social networking system, an application external to the social networking system, or using a push notification or prompt. The questions may be formatted in various ways, such as an explicit question, confirmation, a selection of responses, or social context to encourage the user to respond to the question.

Abstract: A social networking system obtains specific structured data about a user via a composer interface having textual content with incomplete portions and input fields corresponding to the incomplete portions. The input fields map to data fields in the user's profile and are selected based on the social networking system's need for the information associated with the data fields.

Abstract: A social networking system obtains specific structured data about a user via a composer interface having textual content with incomplete portions and input fields corresponding to the incomplete potions. The input fields map to data fields in the user's profile and are selected based on the social networking system's need for the information associated with the data fields.

Abstract: When a request to connect a requesting user to a target user is received by the social networking system, information associated with the requesting user and with users connected to the target user is retrieved. A fraud probability score indicating a probability that the requesting user is impersonating a user connected to the target user is determined based on the information associated with the requesting user and with users connected to the target user. Based on the fraud probability score, a determination is made whether the requesting user is a suspected imposter and remedial action is taken if imposter is suspected.

Abstract: A social graph, which records the actions of users in a social networking system platform, may be modeled at least in part as a collection of claims that may be exported to other systems, such as third party publishers, based on permissions granted by users and entities. The social networking system may also act as a publisher, enabling web applications and mobile applications to publish claims to a variety of audiences based on the permissions granted by users and entities, or agents of the social networking system. Permissions may be granted based on agreed-upon terms of service between agents, agents and publishers, agents and the social networking system platform, and publishers and the social networking system.

Abstract: When a request to connected a requesting user to a target user is received by the social networking system, information associated with the requesting user and with users connected to the target user is retrieved. A fraud probability score indicating a probability that the requesting user is impersonating a user connected to the target user is determined based on the information associated with the requesting user and with users connected to the target user. Based on the fraud probability score, a determination is made whether the requesting user is a suspected imposter and remedial action is taken if imposter is suspected.

Abstract: A social networking system allows its users to perform a structured search that returns objects (e.g., other users and pages) in the social networking system. A searching user may remove or add objects to the search by interacting with the returned objects. Adding or removing an object generates a claim stored by the social networking system that an object has or does not have, respectively, characteristics based on the search query. Additionally, the searching user may also request presentation of the search query to other users, which may be selected by the social networking system based on their predicted expertise. A dialog between the searching user and a selected other user may be provided to allow the searching user to provide the search query to the selected other user and to receive a response.

Abstract: A social networking system presents questions to a user on an interface associated with the social networking system to elicit information about the user that is missing from the user's profile or is otherwise outdated. The questions are selected based on a number of factors, such as the need for or value of the information item, probability of a response, or cost of collecting the information item. In presenting the selected question, the social networking system prompts a user for information about the user in a an interface associated with a page from the social networking system, an application external to the social networking system, or using a push notification or prompt. The questions may be formatted in various ways, such as an explicit question, confirmation, a selection of responses, or social context to encourage the user to respond to the question.

Abstract: A social networking system manages the accessibility of content items provided by users and directed to various audiences in the social networking system. An author provides the social networking system with a content item, a content item tag indicating an association between the content item and a tagged user, and a definition of a first audience who may view the content item. The social networking system then allows the tagged user to provide a definition of a second audience who may view the content item, where the second audience may contains users who are not in the first audience defined by the original author. The social networking system then determines whether a viewing user may view the posted content item (and tag) based on whether the viewing user is in at least one of the first audience and the second audience.

Abstract: A social graph, which records the actions of users in a social networking system platform, may be modeled at least in part as a collection of claims that may be exported to other systems, such as third party publishers, based on permissions granted by users and entities. The social networking system may also act as a publisher, enabling web applications and mobile applications to publish claims to a variety of audiences based on the permissions granted by users and entities, or agents of the social networking system. Permissions may be granted based on agreed-upon terms of service between agents, agents and publishers, agents and the social networking system platform, and publishers and the social networking system.

Abstract: A social networking system presents questions to a user on an interface associated with the social networking system to elicit information about the user that is missing from the user's profile or is otherwise outdated. The questions are selected based on a number of factors, such as the need for or value of the information item, probability of a response, or cost of collecting the information item. In presenting the selected question, the social networking system prompts a user for information about the user in a an interface associated with a page from the social networking system, an application external to the social networking system, or using a push notification or prompt. The questions may be formatted in various ways, such as an explicit question, confirmation, a selection of responses, or social context to encourage the user to respond to the question.

Abstract: Particular embodiments of a method comprise providing one or more ideograms (e.g., written characters, symbols or images that represent an idea or thing) for insertion into a message. A request may be received from a user for a restricted one of the ideograms. A determination may be made as to whether the user is authorized to access the restricted ideogram. This determination may be based on whether the user is a member of a group of authorized users, whether an attribute of the user meets a restriction requirement, or whether the request comprises an authorization code or token. If the user is authorized to access the restricted ideogram, then the restricted ideogram may be displayed to the user in association with the message. Otherwise, a restricted-content response may be generated.

Abstract: Particular embodiments of a method comprise analyzing a message to perform sentiment analysis with respect to at least a portion of the message. One or more sentiments associated with the at least a portion of the message may then be identified. One or more ideograms (e.g., written characters, symbols or images that represent an idea or thing), each corresponding to an identified sentiment, may then be suggested to a user for insertion into a message. Upon receiving a user selection of one or more of the ideograms in relation to some portion of the message, an association may be saved in a user-specific dictionary linking the user-selected one or more of the ideograms with the portion of the message. In particular embodiments, the sentiment analysis may incorporate social-networking information and/or historical ideogram usage information.

Abstract: Particular embodiments of a method comprise analyzing an image to classify an expression displayed on a face shown in a captured image. Image analysis may include detecting the face in the image, generating a characterization of features of the face, and classifying the expression based on the characterization. The characterization of facial features may be based on benchmark metrics for a particular expression. One or more ideograms (e.g., written characters, symbols or images that represent an idea or thing) may be selected based on the expression. The selection may be based on one or more match scores for the expression. The match scores may be determined based on an ideogram dictionary or an ideogram usage history. The selected ideograms may then be presented, in association with the face, on a screen for the computing device.

Abstract: A social networking system presents questions to a user on an interface associated with the social networking system to elicit information about the user that is missing from the user's profile or is otherwise outdated. The questions are selected based on a number of factors, such as the need for or value of the information item, probability of a response, or cost of collecting the information item. In presenting the selected question, the social networking system prompts a user for information about the user in a an interface associated with a page from the social networking system, an application external to the social networking system, or using a push notification or prompt. The questions may be formatted in various ways, such as an explicit question, confirmation, a selection of responses, or social context to encourage the user to respond to the question.