23.1 Introduction

As stated in some of the earlier chapters, cloud computing is an emerging paradigm in the information technology and data processing communities. Enterprises utilize cloud computing services to outsource data maintenance that can result in significant financial benefits. Businesses store and access data at remote locations in the “cloud.” As the popularity of cloud computing grows, the service providers face ever increasing challenges. They have to maintain huge quantities of heterogeneous data while providing efficient information retrieval. Thus, the key emphasis for cloud computing solutions is scalability and query efficiency. In other words, cloud computing is ...

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