Abstract: A method for obtaining contextually related instances. The method comprises providing a map of a plurality of contextual relations between a plurality of instance types and a plurality of functionalities. Each one of the functionalities is associated with one of the mapped contextual relations and configured for providing one or more instances of a respective type. The method further comprises receiving a contextual linkage between a known instance and a requested instance, identifying a match between the contextual linkage and a segment of the map, and obtaining the requested instance by using the known instance along with a group of which is selected from the functionalities; each member of the group is associated with a contextual relation in the segment.

Abstract: A method of creating a dataset having an adjacency list of a graph mapping a plurality of predicate edges connecting among a plurality of vertexes each set for another of a plurality of entities. The method is based on a list having a plurality of predicate triplets and a plurality of inverted predicate triplets extracted from the graph, each the triplet and the inverted predicate triplet having a subject entity and an attribute entity from the plurality of entities and a predicate edge, from the plurality of predicate edges.

Abstract: A method for obtaining contextually related instances. The method comprises providing a map of a plurality of contextual relations between a plurality of instance types and a plurality of functionalities. Each one of the functionalities is associated with one of the mapped contextual relations and configured for providing one or more instances of a respective type. The method further comprises receiving a contextual linkage between a known instance and a requested instance, identifying a match between the contextual linkage and a segment of the map, and obtaining the requested instance by using the known instance along with a group of which is selected from the functionalities; each member of the group is associated with a contextual relation in the segment.