Semantic Web in Action - Structured Data

So Google has been building a knowledge graph of things. To better facilitate your website to be included in Google knowledge graph and enhance its SEO you have to embed semantic web (SW) vocabulary to your website.

NoSQL vs Lucene as Database

Today I was looking at the products of SindiceTech specifically SIREn which is schemaless search engine for JSON. They seem to be using it for their knowledge graph representation. Now the question boils down to why even bother with Lucene? MongoDB is already out there with scalability and fast nested schemaless indexing and search, even if you want to consider using it for a knowledge graph or semantic web context. Here is a good comparison of Lucene vs MongoDB as schemaless data stores and search engine. At the end of the day, if lucene done right it can do anything MongoDB can.