Ranked Keyword Search Technique for Privacy Preserving

Privacy preserving is the essential aspect for cloud. In privacy preserving ranked keyword search, data owner outsource the document in an encrypted form. So for privacy purpose, Reliable ciphertext search technique is essentially. To design ciphertext search technique which provide encrypted document is critical task. In this paper, hierarchical clustering method is designed for semantic search and fast ciphertext search within a big data environment. In hierarchical clustering, documents are based on maximum relevance score and clusters are divided into sub-clusters.