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A graph is a data structure composed of vertices and edges. These terms are synonymous with the following: vertices, dots, nodes, things, points edges, lines, links, relations, arcs From vertices and edges, numerous artificial and real-world systems can be modeled and processed. The purpose of this post is to explore a graph representation of Wikipedia persisted in the graph database Neo4j and pro
My name is Dr. Marko A. Rodriguez. I’m a business-oriented researcher studying the theory and application of graph, stream, and database technologies to problems across various industries. The technologies I work on have been commercialized in my past company Aurelius and currently in my present company RReduX.
A recommender engine helps a user find novel and interesting items within a pool of resources. There are numerous types of recommendation algorithms and a graph can serve as a general-purpose substrate for evaluating such algorithms. This post will demonstrate how to build a graph-based movie recommender engine using the publicly available MovieLens dataset, the graph database Neo4j, and the graph
Loading the Graph The graph data set was loaded both into MySQL and Neo4j. In MySQL a single table was used with the following schema. CREATE TABLE graph ( outV INT NOT NULL, inV INT NOT NULL ); CREATE INDEX outV_index USING BTREE ON graph (outV); CREATE INDEX inV_index USING BTREE ON graph (inV); After loading the data, the table appears as below. The first line reads: “vertex 0 is connec
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