Professor QIN Shaowen
Team : ComplexNetworks
Invited by : Matthieu LATAPY
Arrival date : 06/14/2010
Departure date : 07/02/2010
Shaowen's current research interests include problem identification and design optimisation of complex processes and socio-technical systems through modeling and simulation; and uncertainty management and decision support methodologies for software engineering and hospital care capacity planning.
Talks : Clustering of Software Classes at Execution and Its Implications
17 juin 2010 de 11h à 12h : salle 101 - Tour 26-00
We present a study on clustering of software classes based on software execution data, which offers a dynamic, hence more realistic, perspective to the understanding of software structure and the evaluation and improvement of the existing architectural design. The approach first uses association rule mining to extract low-level class relations in object-oriented software. The mining results are then processed by hypergraph-based clustering to identify an optimal set of high-level clusters of classes that have relatively high cohesion within and low coupling between them. It is also shown that such clusters are actually unique. The identified clusters can be seen as execution components of the software, which represents the effect, rather than the intention of the existing design. Two case studies are presented to demonstrate the application of our approach. Relevant concepts in complex network are also introduced to interpret the findings of this study.