Aerial vision object tracking technology plays an increasingly critical part in intelligent perception and task cognition when aircraft perform various reconnaissance missions. However, the particularity in object types and visual angles in aerial vision imagery render the tracking process more prone to deformation, scale variation, motion blur and occlusion, making this technique very challenging. A high-performance Siamese network tracker for aerial visual object tracking, SiamAVOT, is proposed to deal with this problem in this paper. First, we utilize the SiamCAR infrastructure to introduce the Bottleneck Attention Module (BAM) attention mechanism after its backbone network for fusion of low and high level features to improve recognition for deformation object features. Then, we change to Distance-IoU (DIoU) loss for the bounding box regression during the training process to improve the network’s ability to predict scale variation. Finally, a Kalman filter online learning module that integrates time and space trajectory information is designed to solve the object motion blur and occlusion disappearance problem in the inference process. The proposed SiamAVOT achieves leading performance on the UAV123 and AVOT40 aerial datasets and can run in real-time at 72 FPS.
The modeling method of agents and service-oriented architecture (SOA) in avionics systems describes agents and SOA in avionics systems with models. To our knowledge, however, the current modeling methods cannot describe the behavior of agents and SOA accurately and do not fit well with the existing avionics system models. This paper addresses the above problems by presenting a modeling method based on architecture analysis and design language (AADL). In this method, the working states of agents are described by the mode components, with the working process being triggered by the input of agents; and the services are described by the process component. The application of the software system is described by the system components that contain several process components. Moreover, different modes of the system are used to describe different applications, and the transitions of application are triggered by specific application requests. Software architecture of an avionics system is modeled by the proposed method. This case demonstrates that the proposed method can accurately describe how agents and SOA work in a new way and fit well with the existing avionics system models.
After the review and assessment of existing research results found, research on risk control mechanism of the independent Commission against corruption in colleges and universities at home and abroad development overall, but there are also the following problems: for the Commission in the field of risk prevention and control mechanism in colleges and universities in foreign countries mostly focused on lessons learned and analysis, university is not different from other public institutions overall as a separate object of study and research; National College risk prevention mechanism of the ICAC building internal research is less, especially with regard to empirical research. Thus, future research needs to focus on the independent Commission against corruption empirical research in colleges and universities and study on the need to strengthen the system, so that effectively combines theory and policy practice.With the further reform of China's higher education system, the Ministry of education has issued a college enrollment, College merging secondary colleges, University City construction, construction policy. These policies are almost always involves "infrastructure, recruitment, procurement" and other areas of concentration of power, coupled with the current colleges and expanding, but lack of proper restraint and oversight system, which the independent Commission against corruption a growing risk, possibility of corruption is also growing. Throughout the history of the world, a country in economic and social transition, and high incidence of corruption. Achieve the construction of risk control mechanism of the ICAC is a solid foundation for creating the world first-class universities in China, this paper intends to circle around the University concerning the research on the risk control mechanism of the system, considerable analysis and assessment, and identify existing research results achieved, and at what level, solid theoretical basis.
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