Abstract: According to one exemplary embodiment, a method for dynamically defining topics from content objects used to answer a question in a question answering system is provided. The method may include receiving the content objects. The method may include identifying the topics within the received content objects. The method may include generating a graph based on the identified plurality of topics, whereby nodes map to the topics. The method may include calculating edge weights associated with each edge based on semantic relations associated with the topics. The method may include determining if the calculated edge weight associated an edge exceeds a threshold value. The method may include generating a combination topic based on determining that the edge weight associated with the edge exceeds the threshold value.

Abstract: A method for controlled sharing, in a cognitive computing system having a memory and a processor, of content from a variety of content providers may include receiving, by the cognitive computing system, an inquiry, wherein the inquiry is directed to at least one content topic. The method may then include identifying, by the cognitive computing system, the at least one content topic, and determining that a cognitive component of the cognitive computing system managed by a content provider has access to a content repository addressing the at least one content topic. The method may further include distributing, by the cognitive computing system, the inquiry to the cognitive component. The method may additionally include receiving a response from the cognitive component.