8. A computerized apparatus having a processor, the processor being adapted to perform the steps of: executing a query against a knowledge base to retrieve at least one document; retrieving at least one entity associated with the at least one document; assigning at least one relevancy score to the at least one entity, the at least one relevancy score representing a degree of relevance of the at least one entity to topic of the query; obtaining a filtered list by filtering the at least one entity to contain only entities appearing in a predetermined collection; and assessing findability of the query based on the at least one entity and the relevancy score, wherein the findability indicates a degree of difficulty to retrieve information related to the query from the representation of the filtered list.
8. A computerized apparatus having a processor, the processor being adapted to perform the steps of: executing a query against a knowledge base to retrieve at least one document; retrieving at least one entity associated with the at least one document; assigning at least one relevancy score to the at least one entity, the at least one relevancy score representing a degree of relevance of the at least one entity to topic of the query; obtaining a filtered list by filtering the at least one entity to contain only entities appearing in a predetermined collection; and assessing findability of the query based on the at least one entity and the relevancy score, wherein the findability indicates a degree of difficulty to retrieve information related to the query from the representation of the filtered list. 13. The apparatus of claim 8 , wherein the processor if further adapted to remove or add a name from the predetermined collection.