For Students

I seek talented grad students for AI+SE. Is that you?

• Why NC State?
• My projects
• My lab
• How to apply?
• All my students

For Industry

Ask me how to innovate. On time. On budget. Case studies:

• Microsoft
• Grammatech
• LexisNexis:1,2,3
• NASA
• IBM:1,2,3,4
• CSIRO

My Funding

• Awards:
• IEEE Fellow (2019)
• Publications:
• H-index: 51 (Dec'18).
• Papers: 96 journal + 131 conference + 57 other
• Government work:
• NASA software research chair: 2002-2004
• NSF panelist: 11 times (2003-2016)
• Journal work:
• assoc. ed.: TSE, TOSEM, JSS, EMSE, IST, ASEJ, IEEE Software, SQJ, Big Data Research, IET Software
• Conference work:
• co-general chair: ICMSE'16; RAISE'19, PROMISE'05..'12
• coPC chair: SSBSE'17,NEIR'15,ASE'12
• program committees: ICSE, FSE, ASE, MSR, SSBSE, PROMISE,...
• Research students: (total)
• Ph.D.: 9 current. 9 past. Masters (by research): 29
• Current graduate students (at the RAISE lab: real-world AI for SE):






My prior graduates:




I challenge my students as follows:

• Researchers usually seek solutions that are more intricate and complex;
• Yet empirically & theoretically the world we can know is very simple;
• So can you do "it" better, with less?

Here is a sample of their results (and for more, see Google Scholar):



Software defect prediction

2018

By looking at 100s of projects, we can find very simple predictors of next month's bugs.

2017

Intelligent defect predictors can stop developers wasting time while they are fixing bad smells.




2015

A simple feature and instance selectors let software projects share privatized data, without missing important patterns.




2012

Very simple social metrics can generate near-optimal predictors for software quality.




2010

Static code defect predictors have inherent limitations. But these limits can fixed via a new learner, very simple learner, that better understand the business goals.




2007

Surprisingly effective defect predictors can be built from simple static code attributes.






Search-based SE

2018

Search-based methods can be 500 times faster than deep learners.

2017

Very simple optimizers can out perform overly complex deep learners.

2016

Very simple optimizers can dramatically improve the performance of data miners learning software quality predictors.




2013

active learners can simplify and reduce the cost of search-based se by orders of magnitude.




2002

Search-based SE methods can easily and readily and critically assess long held SE truisms.






Transfer learning

2018

The bellwether effect teaches us much about generality in SE.




2017

Even when project data collects data using different labels, we can still transfer lessons learned between them.






2016

Ultra-simple transfer learning methods (called "bellwethers") enable effective transfer of lessons learned.






2013

How to transfer lessons learned from past projects? Easy! Clustering tools enable transferring lessons learned between software projects.




2009

A simple nearest neighbor relevancy filtering resulted in one of the first general results in software analytics: defect predictor learned from Turkish toasters could be successfully applied to NASA flight software (and vice versa).






Requirements engineering

2017

Seemingly complex, conflicting models can be tamed and controlled via some simple stochastic probing.




2003

Contrast set learners can explain enormous decision trees (6000 node) learned from complex requirements models just 6 rules.




2002

Contrast set learners find simple controllers in requirements models.






Effort estimation

2016

The effort to build complex software can be estimated by very simple equations.

2013

Active learners can easily estimate large software projects after just a few samples.






Other applications

2018

To tame cloud computing, use next generation algorithms

2016

Text miners can succinctly summarize thousands of technical papers about SE.

2015

Data miners can greatly simplify and reduce the effort involved in data collection for community health studies.




2010

Simple contrast-set learners out-perform state-of-the-art optimizers for spacecraft control;




1990

The lesson of decades of expert systems research is that, for specific domains, human expertise can be readily captured in just a few rules.




 

BTW: for the origins of the "Less, but better" mantra, see Dieter Rams' 10 principles for good design.