Efficient Information Retrieval for Ranked Queries in Cost-Effective Cloud Environments

Download Now Free registration required

Executive Summary

Cloud computing as an emerging technology trend is expected to reshape the advances in information technology. In this paper, the authors address two fundamental issues in a cloud environment: privacy and efficiency. They first review a private keyword-based file retrieval scheme proposed by Ostrovsky et. al. then, based on an Aggregation and Distribution Layer (ADL), they present a scheme, termed Efficient Information Retrieval for ranked Query (EIRQ), to further reduce querying costs incurred in the cloud. Queries are classified into multiple ranks, where a higher ranked query can retrieve a higher percentage of matched files. Extensive evaluations have been conducted on an analytical model to examine the effectiveness of their scheme.

  • Format: PDF
  • Size: 267.6 KB