Mining Software Archives
Learning from History

Software Engineering Chair (Prof. Zeller)
Saarland University – Computer Science
Saarland Informatics Campus
Campus E9 1 (CISPA)
66123 Saarbrücken, Germany
E-mail: zeller @ cs.uni-saarland.de
Phone: +49 681 302-70970

The Software Evolution project at the Software Engineering Chair, Saarland University, analyzes version and bug databases to predict failure-prone modules, related changes, and future development activities.

What's new

Our project "Predicting the Risk of Changes" got awarded US $80,000 Google Research Award.
Together with Microsoft Research we developed the concept of change bursts that can predict defect for software components with an precision up to 90%.
Our project "Mining Jazz Data to Assess Development Processes" got awarded US $25,000 Jazz Faculty Grant.
One of the most popular German computer magazines (c't) covered Vulture, our vulnerability prediction tool (c't 2007, Issue 21, page 52)
One of the most popular German computer magazines (c't) covered the BugCache algorithm (c't 2007, Issue 13, page 46)
We have mined the Mozilla history to predict vulnerabilities.
- Read the paper (Proc. Computer and Communications Security, Alexandria, Virginia)
Our Eclipse bug data, listing the defect density of all Eclipse components, is now available for download.
We have mined the Microsoft bug databases to predict component failures.
- Read the paper (Proc. International Conference on Software Engineering, Shanghai)
- Read the FAZ article: Wie anfällig wird "Vista"? (in German)
Looking for the technical report on APFEL: "Fine-grained Processing of CVS Archives with APFEL"? Click here...
Looking for the extended version of "Mining Version Archives for Co-changed Lines"? Click here...
A paper on HAM and DynaMine has been selected for the Mining Challenge at MSR 2006 in Shanghai. Read the paper...
Be warned: Don't program on Fridays! Why not? Read more...
The eROSE plug-in for ECLIPSE that uses data mining to suggest related changes is available for download. Read more... or Download now...
Subscribe to our announcement mailing list and you will be notified of new papers and downloads. Read more...

Projects

Change Genealogies: Change dependency graphs.
GENEVA: Genealogy Extraction from Version Archives.
Mining API Popularity: Which the the best API out there?
AKTARI - Mining Trends in Software: Which is the best library versions to use? Check the choice of the majotiy!
Mining Jazz Data: What is it that makes a good development process?
Vulnerable components: Tell me what you import, and I'll tell you how vulnerable you are.
Predicting component failures: What is it that makes software fail?
Good bug reports: What makes a good bug report? Ask our CUEZILLA tool.
Recommending related changes: You changed function foo(). What else do you need to change?
Locating cross-cutting concerns in history: Which parts of your software do not align with the given modularization?
Discovering usage patterns: How can we learn that a call to addWidget() should be followed by removeWidget()?