14 Dec 2015
A common task when working with data from APIs is crawling the API and inserting the results in a database. In this example we'll import data into Neo4j by crawling a public API, building a graph in Neo4j as we go along. We'll use Neo4j as a queuing mechanism to store URLs for placeholder resources waiting to be fetched.
11 Oct 2015
This post shows how we can apply graph analytics to US Congressional data to find influential legislators in Congress. Using the Mazerunner open source graph analytics project we are able to use Apache Spark GraphX alongside Neo4j to run the PageRank algorithm on a collaboration graph of US Congress.
20 Sep 2015
Interactions among members of any large organization are naturally a graph, yet the tools we use to analyze data about these organizations often ignore the graphiness of the data and instead map the data into structures (such as relational databases) that make taking advantage of the relationships in the data much more difficult when it comes time to analyze the data. Collaboration networks are a perfect example. So let's focus on one of the most powerful collaboration networks in the world, the US Congress.
16 Jun 2015
Discovering paradigmatic word associations is one of the core tasks of Natural Language Processing. In this post we explore a graph based method for mining paradigmatic word associations from a text corpus.
28 May 2015
Using article links shared on Twitter to determine a user's interests, we show how to build a personalized content recommender system to suggest other articles the user might be interested in.