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NoSQL Data Models

You're reading from NoSQL Data Models Addresses severe issues related to NoSQL data models

Product type Paperback

Published in Aug 2018

Publisher Wiley

ISBN-13 9781786303646

Length 278 pages

Edition 1st Edition

Languages

Cypher

Tools

Cypher Query

Concepts

Database Programming

Author (1):

Olivier Pivert

View More author details

Table of Contents (11) Chapters

Preface

1 NoSQL Languages and Systems

2 Distributed SPARQL Query Processing: a Case Study with Apache Spark FREE CHAPTER

3 Doing Web Data: from Dataset Recommendation to Data Linking

4 Big Data Integration in Cloud Environments: Requirements, Solutions and Challenges

5 Querying RDF Data: a Multigraph-based Approach

6 Fuzzy Preference Queries to NoSQL Graph Databases

7 Relevant Filtering in a Distributed Content-based Publish/Subscribe System

List of Authors

Index

End User License Agreement

6.3. Fuzzy preference queries over graph databases

In the following, we present two scientific contributions that introduce fuzzy preferences in pattern queries over graph databases. In section 6.3.1. We present a pioneer work that extends the Cypher language in order to express fuzzy preference queries over attributes (a.k.a. properties), nodes and relationships in order to query a crisp graph database. Then, in section 6.3.2. We present a more general framework that makes it possible to express fuzzy preference pattern queries in order to query a fuzzy graph database.

6.3.1. Fuzzy preference queries over crisp graph databases

In this section, we address fuzzy selection (READ) queries over regular NoSQL Neo4j graph databases. We introduce a new query language built on top of Cypher to address flexible queries, which we call CYPHERF. We claim that fuzziness can be handled at the following three levels: over attributes, over nodes and over relationships.

The CYPHERF extension affects...

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Authors (1)

Olivier Pivert

Olivier Pivert

Olivier Pivert is currently a full Professor of Computer Science at the National School of Applied Sciences and Technology, Lannion, France; and a Member of the Institute for Research in Computer Science and Random Systems where he heads the Shaman research team.

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