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Mining similarity between text-documents using Apache Lucene

One of the main challenges in Big Data environments is to find all similar documents which have common information.To handle the challenge of finding similar free-text documents, there is a need to apply a structured text-mining process to execute two tasks: 1. profile the documents to extract their descriptive metadata, 2. to compare the profiles of pairs of documents to detect their overall similarity. Both tasks can be handled by an open-source text-mining project like Apache Lucene.