Empirical study on focus technology based on Top-level domain

With Internet technology developing rapidly and information massively growing, Internet information has become more and more important resources and cannot be ignored, which contains a lot of information and technology related. In this paper, we propose idea analyzing focus technology and development direction in future using national domain name in Top-level domain based on Internet information. Using the hierarchical clustering method, through comparing countries in one group and between groups, we can discover various countries current universally concerned focus technology and technology development direction in future.