<strong>How does Facebook grow? Do user populations of Twitter, LinkedIn, and other products and services grow in the same way? ― A Universal Growth Equation from a Network Perspective</strong>

<strong>How does Facebook grow? Do user populations of Twitter, LinkedIn, and other products and services grow in the same way? ― A Universal Growth Equation from a Network Perspective</strong>

时间：2016年4月14日下午4点 地点：九龙湖校区图书馆五楼数学系第一报告厅

报告简介：

The growth of the user population of a newly launched product or service is often considered as being controlled by multiple factors like deployment of appropriate business strategy, quality of the product, market readiness, and luck! Recent research in network science has provided convenient access to the construction of models that can describe collective human behaviour. Here, we develop a model, based on construction of a networked community and two fundamental behaviour of decision making, that can universally describe the growth of the user population of any newly launched product or service. This model leads to a universal growth equation that describes dynamically the size of the user population in terms of the prospective market size and the extents of peer influence and personal choice. We analyse 22 sets of real-world historical growth data of a variety of products and services, and show that they all follow the universal growth equation. The numerical procedure for finding the model parameters allows the market size, and the relative effectiveness of customer service and promotional efforts to be estimated from the available historical growth data. This model can be extended to a variety of practical growth applications. At the end of the talk we will present how the growth of a professor's publication over time can be modelled.

报告人简介：

Michael Tse graduated with BEng(Hons) and PhD degrees from Melbourne University in 1987 and 1991. He is presently Chair Professor of Electronic Engineering at Hong Kong Polytechnic University, where he served as Head of Electronic Engineering from 2005 to 2012 and on the University Council from 2013-2015. His research focuses include power electronics, nonlinear systems, communications and recently complex network applications. He is the author of 10 books and over 300 technical papers. He was recipient of a few Best Paper Prizes from IEEE and other journals, as well as two Gold Medals in the International Inventions Exhibition in Geneva. In 2005 and 2010, he was appointed as IEEE Distinguished Lecturer. In 2006 he chaired the IEEE CAS Technical Committee on Nonlinear Circuits and Systems. He serves and has served as Editor-in-Chief of IEEE Transactions on Circuits and Systems II, IEEE Circuits and Systems Magazine and IEEE Circuits and Systems Newsletter; as Editor of IJCTA and associate editor of a few other IEEE journals. He serves on a number of IEEE committees including the IEEE Fellow Committee and the IEEE Awards Committee. He has been appointed to honorary professorship and distinguished fellowship by a few Australian, Canadian and Chinese universities, including the Chang Jiang Scholar Chair in China. He is currently serving on panels of Hong Kong Research Grants Council, Innovation Technology Fund and National Science Foundation of China. Back in his own university, he chairs the culture and art committee which organises over 100 events in visual art, theatre and music with public participation. He is an IEEE Fellow and an IEAust Fellow.

计算机网络和信息集成教育部重点实验室（东南大学）