Empirical Software Engineering using Ultra Large Repositories Mei Nagappan SAIL.

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Presentation transcript:

Empirical Software Engineering using Ultra Large Repositories Mei Nagappan SAIL

Photo: Doug Menuez/Contour by Getty Images/Stanford University Libraries

Agenda Part 1 – Introduction – Course Overview and Objectives – Student introductions and expectations – Syllabus – Assignment and Project Part 2 – Example of an Ultra Large Repository – World of Code – How to access it? Part 3 – Example of on ESE study – What we did? – How we did it?

Typical ESE vs ESE in ULR

What can we learn about SE from these Ultra Large Repositories?

Challenges Mining Sample Selection Analysis Noise

Syllabus Project and Assignment Break

Example Study

Are Most Apps Great ?

Lots of Apps with very few Ratings

Most apps are Average

More Raters => Steady Ratings

Dimensions of Study Design