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The commonly used 2D Display is limited in aiding operators to control unmanned aerial vehicles (UAVs) within complex environments, due to its weak immersion. This paper proposes a data-driven 3D augmented reality approach. Pre-known data and experience can be integrated into to constructing a 3D virtual scenario. Furthermore, the on-board sensor data is continuously updated to this scenario during...
When used in counter-terrorism and disaster rescue, UAVs may possibly fly in buildings. In an indoor closed environment, GPS signal may be blocked, which will make UAVs difficult to obtain their location. In addition, a complex indoor environment also brings challenges to the safety of flight. Therefore, it is necessary to identify complex environments and avoid obstacles in real-time. This paper...
Currently, there are increasing demands for unmanned aerial vehicle (UAV) in urban application. UAV based on mobile communication network has further breached the limit of transmission distances. Taking into account the inherent characteristics of communication network infrastructures such as blind spots in distribution and space loss, this paper uses the wireless communication model of base station...
The recommender system is widely used in many areas in the age of information overload. Collaborative filtering (CF), as one of the most successful methods used for recommendation, recommends items based on the nearest neighbors of the target user. Thus, the performance of the recommender system depends largely on the similarity measure used for selecting neighbors. Most of the traditional similarity...
Parallel processing system has been extensively developed and used in numerous commercial servers for large-scale data analysis. However, the issues of scalability, reliability and efficiency cannot be achieved simultaneously. Motivated by this observation, a Multi-level Parallel Database System based on B-tree structure (MPDBS) is designed for large-scale structured data and semi-structured data...
We propose Birds: a bare-metal recovery system for instant restoration of data services, focusing on a general-purpose automatic backup-and-recovery approach to protect data and resume data services from scratch instantly after disasters. We design BIRDS to possess two appealing features: full automation in the backup-and-recovery process, and instant data service resumption after disasters. BIRDS...
Based on Service-Oriented Architecture, an inexpensive solution, Parallel database middleware gather the standalone database instance to provide users with highly scalable relational data management platform. However, with the advent of the era of large-scale data, such platform has posed a serious challenge in the context of text data retrieval. Motivated by this observation, a parallel database...
Computerized data becomes more and more critical in todaypsilas digital life. With the help of redundant hardware and software, remote mirror can keep information systems alive by seamless service switching, even encountering site corruptions. Unfortunately, existing mirror systems have some limitations such as restrictions to specific storage devices and/or low level drivers. In this paper, we design...
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