Generating Clojure from an Ontology

I’ve been fascinated with RDF for years, but I always end up frustrated when I try to use it. How do you read/write/manipulate RDF data in code? Sure, there are lots of libraries, but they all represent RDF data as its primitive structures: statements, resources, literals, etc. Working with data through these APIs feels like… Continue reading Generating Clojure from an Ontology

Whither RDF?

RDF is seductive.  I can’t get away from it.  Something about the ability to represent anything and everything in one consistent model just tugs at my engineer’s heartstrings. The problem with RDF, as I’ve discovered through painful experience, is that the ability to represent everything sacrifices the ability to represent anything efficiently.  Certainly that is… Continue reading Whither RDF?

All Your Base

Let’s have the database models strut down the runway: Relational (SQL): Data consist of rows in tables. Each row has multiple columns. Each column has a fixed type. Queries use filters and joins. Fixed schema is defined separately from the data. User-defined indexes improve query performance. Robust transaction/data-integrity support. Graph (RDF): Data consist of nodes… Continue reading All Your Base

In Search of the Grand Unified Data Model

Since I started working on a little over a year ago, I’ve struggled with the data model. I’ve got around half a million documents, totally unstructured, from a dozen different sources. Each source has its own quirks and problems that have to be corrected before it’s useful. When I started, I was using MySQL… Continue reading In Search of the Grand Unified Data Model