An approach to extracting complex knowledge patterns among concepts belonging to structured, semi-structured and unstructured sources in a data lake

In this paper, we propose a new network-based model to uniformly represent the structured, semi-structured and unstructured sources of a data lake, which is one of the newest and most successful architectures proposed for managing big data. Then, we present a new approach to, at least partially, "structuring" unstructured sources. Finally, with the support of these two tools, we define a new approach to extracting complex knowledge patterns from the data stored in a data lake. (C) 2018 Elsevier Inc. All rights reserved.