Book Image

NoSQL Data Models

By : Olivier Pivert
Book Image

NoSQL Data Models

By: Olivier Pivert

Overview of this book

Big Data environments are now to be handled in most current applications, this book addresses the latest issues and hurdles that are encountered in such environments. The book begins by presenting an overview of NoSQL languages and systems. Then, you’ll evaluate SPARQL queries over large RDF datasets and devise a solution that will use the MapReduce framework to process SPARQL graph patterns. Next, you’ll handle the production of web data, generate a set of links between two different datasets and overcome different heterogeneity problems. Moving ahead, you’ll take the multi-graph based approach to overcome challenges faced by the RDF data management community. Finally, you’ll deal with the flexible querying of graph databases and textual data management. By the end of this book, you’ll have gathered essential information on big data challenges faced by NoSQL databases.
Table of Contents (11 chapters)
List of Authors
End User License Agreement

4.7. Summary and open issues

In this section, we propose to conduct a global summary of the most relevant studied solutions. We will exclusively focus on works supporting at least two requirements of Big Data integration requirements in cloud environments, that is, R1 – selection, discovery and deployment of data stores, R2 – uniform access to any data store, R3 – integrated view on data stores and R4 – global query processing and optimization. To do so, we present a global summary in section 4.7.1 and introduce a set of open issues in section 4.7.2.

4.7.1. Summary

In this section, we provide a global summary and comparison between all the works studied throughout this chapter (see Table 4.5). To do so, we define three groups of criteria. The first one represents the requirements that we identified in section 4.2 for Big Data integration in cloud environments (R1, R2, R3 and R4). The second one enables us to check if the studied works sufficiently support...