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One of the major challenges of the "Big Data" epoch is unstructured data mining. The problem arises due to the storage of high-dimensional data that has no standard schema. While knowledge discovery in database (KDD) algorithms were designed for data extraction, the algorithms best fit for structured data storages. Moreover, today, at the data storage level, NoSQL databases have been deployed in response to accommodate the unstructured data. However, the over-reliance on multiple APIs by NoSQL storages hampers efficient data extraction from different NoSQL storages. Also, there are limited numbers of tools available that can perform KDD tasks on NoSQL data stores. In this work, we explore the trend in unstructured data mining and detail the future direction and challenges. Then, focusing on topics and terms extraction from NoSQL databases, we propose a tool called TouchR2, which algorithmically …