This book is a study of the return migration of overseas Chinese students. By 2018, over 3.5 million Chinese students had returned from overseas universities to China, with the megacities of Beijing, Shanghai, and Shenzhen representing by far their main destinations. In other words, when overseas students return to China, many do not return to their hometown but usually land, work and settle down in Beijing, Shanghai and Shenzhen. Their return migration is thus not only transnational, but also internal-urban. This book adopts a multi-level geographical analysis to explore this important phenomenon, exploring why and how returnees choose these three cities and how they experience and interpret their everyday lives in these megacities after their return. In doing so, it highlights the importance of cultural logics and multiscalar thinking of transnational Chinese students’ return migration and illuminates how their transnational migration reproduces domestic socio-spatial inequalities. This book brings an important contribution to the fields of Cultural Geography, Urban Geography, Transnationalism, Migration Studies and Citizenship Studies.

This Springer Brief investigates spectrum sharing with limited channel feedback in various cognitive radio systems, such as point-to-point, broadcast scheduling and ad-hoc networks. The design aim is to optimally allocate the secondary resources to improve the throughput of secondary users while maintaining a certain quality of service for primary users. The analytical results of optimal resource allocation are derived via optimization theory and are verified by the numerical results. The results demonstrate the secondary performance is significantly improved by limited feedback and is further improved by more feedback bits, more secondary receivers and more primary side information.

This book constitutes the thoroughly refereed proceedings of the 7th Joint International Semantic Technology Conference, JIST 2017, held in Goldcoast, QLD, Australia, in November 2017. The 19 full papers and 4 short papers presented were carefully reviewed and selected from 37 submissions. They present applications of semantic technologies, theoretical results, new algorithms and tools to facilitate the adoption of semantic technologies and are organized in topical sections on ontology and data management; ontology reasoning; linked data and query; information retrieval and knowledge discovery; knowledge graphs; and applications of semantic technologies.

This book constitutes the thoroughly refereed proceedings of the 6th Joint International Semantic Technology Conference, JIST 2016, held in Singapore, Singapore, in November 2016. The main topics of JIST 2016 include among others ontology and reasoning; linked data; knowledge graph. The JIST 2016 conference consists of two keynotes, a main technical track, including (full and short papers) from the research and the in-use tracks, a Poster and Demo session, a workshop and two tutorials. The 16 full and 8 short papers presented were carefully reviewed and selected from 34 submissions. The papers cover the following topics: ontology and data management; linked data; information retrieval and knowledge discovery; RDF and query; knowledge graph; application of semantic technologies.