Application of linked open government data: state of the art and challenges

Open government data (OGD) is growing steadily, and it has been a vital communication channel between government and citizens. Government data published by linked data technology can promote transparency and even improve reuse rate of data. The paper describes the related concepts, publishing principles, and advantages of linked government data. It then deeply analyzes technology architecture which includes expression layer, compiling layer, interlinking, and browse/query layer on the basis of related concepts. Following this, the paper summarizes applications of linked government data in the developed countries such as the United States and the United Kingdom.. Finally, it gets a view of applications and challenges of linked government data in China smart city construction.