Abstract: Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium for firewall policies with improved efficiency. A policy can be defined that specifies a set of firewall rules, where the set of firewall rules provides a respective firewall rule for each layer of a plurality of layers within a hierarchical structure of a network, the network including a plurality of elements. Determining, for a first element within the network, a position within a first layer of the hierarchical structure. In response to receiving a data transmission request to or from the first element, applying the set of firewall rules in accordance with the first layer of the hierarchical structure, where applying the set of firewall rules comprises sequentially applying each respective firewall rule at each layer from an upper layer within the network to the first layer within the network.

Abstract: A method and apparatus are disclosed for recommending business connections by receiving connection network data from multiple social networking systems defining a first plurality of entities connected to at least a first user, preprocessing a newsfeed with NLP services to identify a second plurality of entities and topics in the newsfeed, generating a business graph data structure which defines a relationships map between the first user and the first and second plurality of entities, and applying query processing services to generate a search report in response to a search query, where the search report comprises a contact panel populated with business connection recommendations from the business graph data structure which correspond to the search query, and a news panel populated with one or more newsfeed articles which correspond to the search query and which are tagged with a sentiment score and one or more entity and topic tags.