Abstract: Methods, systems, and computer programs are presented for embedding user categories into vectors that capture similarities between the user categories. One method includes an operation for building a graph for a category of attributes for users of a social network, the graph including a vertex for each category value. Connections, built between the graph vertices, have a connection value indicating the number of users to which the category values associated with the vertices have been assigned. Further, a first vector for each category value is obtained based on the graph, where a distance between two category values is a function of the connection value between the corresponding vertices. A user vector, based on the first vectors of the category values, is assigned to each user. A search is performed for a given user based on the user vectors, and results are presented to the given user.

Abstract: Techniques for detecting errors in a computing system are provided. In one technique, first member data that comprises first attribute values of a particular attribute is stored. Each attribute value in the first attribute values is associated with a different member of a first plurality of members. Second member data that comprises second attribute values of the particular attribute is stored. Each attribute value in the second attribute values is associated with a different member of a second plurality of members. For each attribute value of the first attribute values, a first number of instances of the attribute value in the first member data is determined, a second number of instances of the attribute value in the second member data is determined, and based on the first number and the second number, a determination of whether a notification indicating the particular attribute will be generated is made.

Abstract: Techniques and a system are provided for a cache manager system. The cache manager system includes features allowing the content selection system to determine when to use information stored in a cache memory or when to request a refresh of profile information by executing a merge of information from two or more data sources.

Abstract: Methods, systems, and computer programs are presented for embedding user categories into vectors that capture similarities between the user categories. One method includes an operation for building a graph for a category of attributes for users of a social network, the graph including a vertex for each category value. Connections, built between the graph vertices, have a connection value indicating the number of users to which the category values associated with the vertices have been assigned. Further, a first vector for each category value is obtained based on the graph, where a distance between two category values is a function of the connection value between the corresponding vertices. A user vector, based on the first vectors of the category values, is assigned to each user. A search is performed for a given user based on the user vectors, and results are presented to the given user.

Abstract: Techniques for detecting errors in a computing system are provided. In one technique, first member data that comprises first attribute values of a particular attribute is stored. Each attribute value in the first attribute values is associated with a different member of a first plurality of members. Second member data that comprises second attribute values of the particular attribute is stored. Each attribute value in the second attribute values is associated with a different member of a second plurality of members. For each attribute value of the first attribute values, a first number of instances of the attribute value in the first member data is determined, a second number of instances of the attribute value in the second member data is determined, and based on the first number and the second number, a determination of whether a notification indicating the particular attribute will be generated is made.

Abstract: Techniques and a system are provided for a cache manager system. The cache manager system includes features allowing the content selection system to determine when to use information stored in a cache memory or when to request a refresh of profile information by executing a merge of information from two or more data sources.