this paper deals with the problem of optimizing two-stage structure decision making units (dmus) where the activity and the performance of two-stage dmu in one period effect on its efficiency in the next period. to evaluate such systems the effect of activities in one period on ones in the next term must be considered. to do so, we propose a dynamic dea approach to measure the performance of su...

Using bibliographic data extracted from an Endnote database, social network analysis techniques were used to generate and analyse a network of co-authors with the aim of developing an understanding of the research community that produces the research knowledge published by the Australasian Conference on Information Systems (ACIS). The ACIS community was found to be a healthy small-world communi...

Abstract Network analysis is a method used to explore the structural relationships between people or organizations, and more recently psychological constructs. novel technique that can be model constructs influence language learning as complex systems, with longitudinal data, cross-sectional data. The majority of dynamic systems theory (CDST) research in field second acquisition (SLA) date has ...