agile defects prediction

  • Goldstein M.
  • Segall I.

Defects prediction is an important and widely researched area. Multiple models involving various software aspects and metrics have been proposed and evaluated in the past. Most of them look at static properties of a specific version of software system or at the entire history of changes for that system. This often leads to prediction of defects for software elements that had many defects in the past and not necessarily in the present. Moreover, it leads to defect prediction on code that may not have changed for some time and is therefore unlikely to contain new defects. In the paper we present a novel approach for defects prediction that compares two consequent releases of a software artifact by analyzing the changes at different levels of granularity. We show that our approach is able to classify elements that were added or changed during the development of the new version as defect prone with high precision. Additionally, we provide a hierarchical visualization technique that guides the code review and testing process, highlighting defect prone code. This saves review and testing time while improving the quality of the new release of the software. Our technique is aligned with the modern Agile and Dev-Ops development methodologies that have short development cycles and frequent releases, as it focuses only on what has actually changed in the code.

Recent Publications

June 04, 2017

A New PRACH Transmission Scheme in Unlicensed Spectrum

  • Luo Z.
  • Meng Y.
  • Tao T.

For the unlicensed spectrum, the occupied bandwidth requirement is demanded by some regulations. The legacy scheme of Physical Random Access Channel (PRACH) for Long Term Evolution (LTE) cannot satisfy it. In this paper, we propose a novel PRACH transmission scheme to satisfy the requirement of unlicensed spectrum based on preamble ...

June 01, 2017

Mutual service processes in Euclidean spaces: existence and ergodicity

  • Baccelli F.
  • Mathieu F.
  • Norros I.

Consider a set of objects, abstracted to points of a spatially stationary point process in R-d, that deliver to each other a service at a rate depending on their distance. Assume that the points arrive as a Poisson process and leave when their service requirements have been fulfilled. We show ...

June 01, 2017

Incentivizing social media users for mobile crowdsourcing

  • Aiello L.
  • Karaliopoulos M.
  • Koutsopoulos I.
  • Micholia P.
  • Morales G.
  • Quercia D.

We focus on the problem of contributor-task matching in mobile crowd-sourcing. The idea is to identify existing social media users who possess domain expertise (e.g., photography) and incentivize them to perform some tasks (e.g., take quality pictures). To this end, we propose a framework that extracts the potential contributors' expertise ...