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usability of outsourced data due to the difficulty of searching over the encrypted data. In this paper, we address this issue by developing the fine-grained multi-keyword search schemes over encrypted cloud data. Our original contributions are three-fold. First, we introduce the relevance scores and preference factors upon
the commercial cloud environment, makes effective data utilization. In this paper, define and solve the problem of ranked keyword search over encrypted cloud data. Enhance system usability through enabling search result relevance, instead of sending undifferentiated results and further ensures file retrieval accuracy by
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.