Abstract: In one embodiment, a method includes receiving a query comprising one or more n-grams, generating a plurality of query commands based on a parsing of the query input, wherein each query command comprises an inner query constraint and an outer query constraint, scoring the query commands based at least in part on a number of objects matching the inner query constraint of the respective query command, selecting a first query command based at least in part on the respective scores of the query commands, and executing the first query command to identify a plurality of objects based on: (1) a first set of objects matching the first inner query constraint and at least in part matching the first outer query constraint, and (2) a second set of objects matching the first outer query constraint.

Abstract: In one embodiment, a method includes receiving a query comprising one or more n-grams, generating a plurality of query commands based on a parsing of the query input, wherein each query command comprises a plurality of query constraints, scoring the plurality of query commands based at least in part on a number of objects matching each of the query constraints of the respective query command, selecting a first query command based at least in part on the respective scores of the query commands, wherein the first query command comprises an inverse constraint corresponding to a first query constraint that has previously been flagged as identifying greater than a threshold number of objects and one or more second query constraints, and executing the first query command to identify a plurality of objects matching the inverse constraint and the one or more second query constraints.

Abstract: In one embodiment, a method includes receiving a query specifying a name including a given name and a surname; locating a set of users, comprising: for each of a plurality of users, including the user in the set of users if the user's given name matches the given name specified in the query and the user's surname matches the surname specified in the query or if the user's given name matches the given name specified in the query and the user's surname does not match the surname specified in the query and the surname of at least one family connection of the user matches the surname specified in the query; and discarding the user otherwise; and sending at least a portion of the set of users in response to the query.

Abstract: In one embodiment, a method includes receiving, from a first user, a query specifying one or more criteria; accessing a data store comprising information associated with one or more users of a social-networking system; identifying a second user from a plurality of users of the social-networking system based on private information stored in the data store and the one or more criteria, wherein the private information is not viewable by the first user; and sending, to the first user, substitute information associated with the second user in place of the private information, the substitute information being information that is viewable by the first user.

Abstract: In one embodiment, a method includes receiving a query comprising one or more n-grams, generating a plurality of query commands based on a parsing of the query input, wherein each query command comprises a plurality of query constraints, scoring the plurality of query commands based at least in part on a number of objects matching each of the query constraints of the respective query command, selecting a first query command based at least in part on the respective scores of the query commands, wherein the first query command comprises an inverse constraint corresponding to a first query constraint that has previously been flagged as identifying greater than a threshold number of objects and one or more second query constraints, and executing the first query command to identify a plurality of objects matching the inverse constraint and the one or more second query constraints.

Abstract: In one embodiment, a method includes receiving a query comprising one or more n-grams, generating a plurality of query commands based on a parsing of the query input, wherein each query command comprises an inner query constraint and an outer query constraint, scoring the query commands based at least in part on a number of objects matching the inner query constraint of the respective query command, selecting a first query command based at least in part on the respective scores of the query commands, and executing the first query command to identify a plurality of objects based on: (1) a first set of objects matching the first inner query constraint and at least in part matching the first outer query constraint, and (2) a second set of objects matching the first outer query constraint.

Abstract: In one embodiment, a method includes receiving, from a client system of a first user, a query comprising one or more n-grams, parsing the one or more n-grams of the query to generate a query command, wherein the query command comprises an inner query constraint and an outer query constraint, identifying from a plurality of objects based on the query command (1) a first set of objects matching the inner query constraint and at least in part matching the outer query constraint, and (2) a second set of objects matching the outer query constraint, and generating one or more search results based on the first and second sets of objects, wherein each search result corresponds to an object of the plurality of objects.

Abstract: In one embodiment, a method includes receiving, from a client system of a first user, a query comprising one or more n-grams, parsing the one or more n-grams of the query to identify a first query constraint and one or more second query constraints, wherein the first query constraint has been previously flagged as identifying greater than a threshold number of objects, generating a query command based on the query, wherein the query command comprises an inverse constraint associated with the first query constraint and the one or more second query constraints, and generating one or more search results based on the query command, each search result corresponding to an object of a plurality of objects.

Abstract: In one embodiment, a method includes receiving, from a client system of a first user, a query comprising one or more n-grams, parsing the one or more n-grams of the query to identify a first query constraint and one or more second query constraints, wherein the first query constraint has been previously flagged as identifying greater than a threshold number of objects, generating a query command based on the query, wherein the query command comprises an inverse constraint associated with the first query constraint and the one or more second query constraints, and generating one or more search results based on the query command, each search result corresponding to an object of a plurality of objects.

Abstract: In one embodiment, a method includes receiving, from a client system of a first user, a query comprising one or more n-grams, parsing the one or more n-grams of the query to generate a query command, wherein the query command comprises an inner query constraint and an outer query constraint, identifying from a plurality of objects based on the query command (1) a first set of objects matching the inner query constraint and at least in part matching the outer query constraint, and (2) a second set of objects matching the outer query constraint, and generating one or more search results based on the first and second sets of objects, wherein each search result corresponds to an object of the plurality of objects.

Abstract: In one embodiment, a method includes receiving, from a client device of a first user of an online social network, a structured query comprising references to one or more selected objects associated with the online social network, parsing the structured query to identify a first query constraint and one or more second query constraints, identifying an inverse constraint associated with the first query constraint, wherein the first query constraint has been previously flagged as identifying greater than a threshold number of objects, and generating a query command based on the structured query, wherein the query command comprises the inverse constraint and the one or more second query constraints.

Abstract: In one embodiment, a method includes receiving, from a client system of a first user of an online social network, a structured query comprising references to one or more selected objects associated with the online social network, generating a query command based on the structured query, wherein the query command comprises an inner query constraint and an outer query constraint, identifying a first set of objects matching the inner query constraint and at least in part matching the outer query constraint, identifying a second set of objects matching the outer query constraint, and generating one or more search results based on the first and second sets of objects, wherein each search result corresponds to an object of the plurality of objects.

Abstract: In one embodiment, a method includes accessing a social graph that includes a plurality of nodes and edges, receiving from a user a structured query comprising references to selected nodes and selected edges, parsing the structure query to identify a first query constraint and one or more second query constraints, identifying a inverse constraint associated with the first query constraint, and generating a query command based on the structured query, where the query command includes the inverse constraint and the one or more second query constraints.

Abstract: In one embodiment, a method includes accessing a social graph that includes a plurality of nodes and edges, receiving from a user a structured query comprising references to selected nodes and selected edges, generating a query command based on the structured query based on the structured query comprising a first query constraint and a second query constraint, identifying a first set of nodes matching the first query constraint and at least in part matching the second query constraint, identifying a second set of nodes matching the second query constraint, and generating search results based on the first and second set of nodes.

Abstract: In one embodiment, a method includes receiving, from a client device of a first user of an online social network, a structured query comprising references to one or more selected objects associated with the online social network, parsing the structured query to identify a first query constraint and one or more second query constraints, identifying an inverse constraint associated with the first query constraint, wherein the first query constraint has been previously flagged as identifying greater than a threshold number of objects, and generating a query command based on the structured query, wherein the query command comprises the inverse constraint and the one or more second query constraints.

Abstract: In one embodiment, a method includes receiving, from a client system of a first user of an online social network, a structured query comprising references to one or more selected objects associated with the online social network, generating a query command based on the structured query, wherein the query command comprises an inner query constraint and an outer query constraint, identifying a first set of objects matching the inner query constraint and at least in part matching the outer query constraint, identifying a second set of objects matching the outer query constraint, and generating one or more search results based on the first and second sets of objects, wherein each search result corresponds to an object of the plurality of objects.

Abstract: In one embodiment, a method includes receiving, from a first user, a query specifying one or more criteria; accessing a data store comprising information associated with one or more users of a social-networking system; identifying a second user from a plurality of users of the social-networking system based on private information stored in the data store and the one or more criteria, wherein the private information is not viewable by the first user; and sending, to the first user, substitute information associated with the second user in place of the private information, the substitute information being information that is viewable by the first user.

Abstract: In one embodiment, a method includes receiving a query specifying one or more criteria; locating a set of users that satisfies the one or more criteria, comprising: for each of a plurality of users belonging to a social-networking system, including the user in the set of users if the user satisfies the one or more criteria based on information associated with the user stored in the social-networking system, the information associate with the user including private information of the user stored in the social-networking system; and discarding the user otherwise; and sending at least a portion of the set of users in response to the query.

Abstract: In one embodiment, a method includes accessing a social graph that includes a plurality of nodes and edges, receiving from a user a structured query comprising references to selected nodes and selected edges, parsing the structure query to identify a first query constraint and one or more second query constraints, identifying a inverse constraint associated with the first query constraint, and generating a query command based on the structured query, where the query command includes the inverse constraint and the one or more second query constraints.

Abstract: In one embodiment, a method includes accessing a social graph that includes a plurality of nodes and edges, receiving from a user a structured query comprising references to selected nodes and selected edges, generating a query command based on the structured query based on the structured query comprising a first query constraint and a second query constraint, identifying a first set of nodes matching the first query constraint and at least in part matching the second query constraint, identifying a second set of nodes matching the second query constraint, and generating search results based on the first and second set of nodes.