Jun Feng – författare

This book constitutes the refereed proceedings of six symposiums and two workshops co-located with SpaCCS 2019, the 12th International Conference on Security, Privacy, and Anonymity in Computation, Communication, and Storage. The 26 full papers were carefully reviewed and selected from 75 submissions. This year's symposiums and workshops are: SPIoT 2019 – Security and Privacy of Internet of Things; TSP 2019 – Trust, Security and Privacy for Emerging Applications; SCS 2019 – Sensor-Cloud Systems; UbiSafe 2019 – UbiSafe Computing; ISSR 2019 – Security in e-Science and e-Research; CMRM 2019 – Cybersecurity Metrics and Risk Modeling.

This book constitutes the refereed proceedings of the 12th International Conference on Security, Privacy, and Anonymity in Computation, Communication, and Storage, SpaCCS 2019, held in Atlanta, GA, USA in July 2019. The 37 full papers were carefully reviewed and selected from 109 submissions.The papers cover many dimensions including security algorithms and architectures, privacy-aware policies, regulations and techniques, anonymous computation and communication, encompassing fundamental theoretical approaches, practical experimental projects, and commercial application systems for computation, communication and storage.

This book constitutes the proceedings of the 6th International Conference on Blockchain, ICBC 2023, held as part of the Services Conference Federation, SCF 2023, held in Honolulu, HI, USA, during September  23–26, 2023.  The 9 full papers presented in this book were carefully reviewed and selected from 18 submissions. The conference focuses on new blockchain architecture, platform constructions, blockchain development, and blockchain services technologies as well as standards and blockchain services innovation lifecycle, including enterprise modeling, business consulting, solution creation, services orchestration, services optimization, services management, services marketing, and business process integration and management.

This book constitutes the refereed proceedings of the 7th International Conference on Edge Computing, EDGE 2023, held in Shenzhen, China, during December 17–18, 2023. The 8 full papers in this book were carefully reviewed and selected from 14 submissions.

This book constitutes the proceedings of the 7th International Conference on Blockchain – ICBC 2024, held as part of the Services Conference Federation, SCF 2024, held in Bangkok, Thailand, during November 16–19, 2024. The 9 full papers included in this book were carefully reviewed and selected from 20 submissions.

This book constitutes the refereed proceedings of the 21st International Conference on Metaverse – METAVERSE 2025, held in Hong Kong, China during September 27–30, 2025.The 8 full papers and one short paper included in this book were carefully reviewed and selected from 11 submissions. The papers focus on new work in various aspects of vertical industry services and related technologies and applications.

This book presents the index and query techniques on road network and moving objects which are limited to road network. Here, the road network of non-Euclidean space has its unique characteristics such that two moving objects may be very close in a straight line distance. The index used in two-dimensional Euclidean space is not always appropriate for moving objects on road network. Therefore, the index structure needs to be improved in order to obtain suitable indexing methods, explore the shortest path and acquire nearest neighbor query and aggregation query methods under the new index structures.Chapter 1 of this book introduces the present situation of intelligent traffic and index in road network, Chapter 2 introduces the relevant existing spatial indexing methods. Chapter 3-5 focus on several issues of road network and query, they involves: traffic road network models (see Chapter 3), index structures (see Chapter 4) and aggregate query methods (see Chapter 5). Finally, in Chapter 6, the book briefly describes the applications and the development of intelligent transportation in the future.