DEVELOPMENT: A Bug's Life History

Predicting Bugs from History

Version and bug databases contain a wealth of information about software failures—how the failure occurred, who was affected, and how it was fixed. Such defect information can be automatically mined from software archives; and it frequently turns out that some modules are far more defect-prone than others. How do these differences come to be? We research how code properties like (a) code comple...

Life-history theory explains childhood moral development.

Infants understand harm and fairness in third-party situations and yet children require years of development before they apply this understanding to their own interactions with others. We suggest that the delay is explained by a life-history analysis of when behaving morally becomes beneficial. The human species is characterized by an extended period of juvenile dependence during which cooperat...

Dental Development as a Measure of Life History in Primates.

Natural history , life history , and

We report on basic natural history, life history, and diet of Priapella chamulae (Poeciliidae) from Arroyo Tres, a small creek in Tabasco, southern México. The tertiary (adult) sex ratio was heavily female-skewed, female P. chamulae produced medium-sized offspring (~2.3 mg), one clutch at a time (i.e., showed no superfetation), and relied predominantly on yolk for embryo provisioning (Matrotrop...

Harvesting Fix Hints in the History of Bugs

In software development, fixing bugs is an important task that is time consuming and cost-sensitive. While many approaches have been proposed to automatically detect and patch software code, the strategies are limited to a set of identified bugs that were thoroughly studied to define their properties. They thus manage to cover a niche of faults such as infinite loops. We build on the assumption...