I recommend looking at the organizing committee from this year. To get a sense of who the is productive people are in the area http://educ-lak17.educ.sfu.ca/index.php/lak17-organizing-committee/ 

You'll want to read George Siemens' position pieces on the nature of learning analytics to get started.

If you mean business intelligence when you say BI methodologies, you'll probably want to start with work by people like Ryan Baker, Chris Brooks, Dragan Gasevic, Zac Pardos, and Kalina Yacef, 

Thank you Carrie. That's very helpful.

Here is a reading list for you. Look at the names of the authors. Remember to follow the links to the links to the links...

https://scholar.google.co.za/scholar?q=%22business+intelligence%22+%22learning+analytics+implementation%22&btnG=&hl=en

If you'd like an early example of the practical use of learning analytics you might like to look at my article on 'Predicting student success' attached (although it doesn't use the term learning analytics. www.ormondsimpson.com

Article Predicting student success in open and distance learning

Thank you Ian and Ormond for your helpful inputs.