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Nowadays, with the development of navigation and location, many kinds of outdoor locating methods are surveyed and used, such as Global Position System (GPS) and LTE fingerprint-based positioning system. However, as the most compelling focus, the localization accuracies of these systems are limited by the location systems themselves. Therefore, in order to improve the localization accuracy, we should...
With the rapid development of cloud computing, the Internet of things, big data has become one of the hot spots of society, but also a major focus of applied research, made many service sectors to become data-driven organizations, which exploit the value of big data resources to gain competitive advantage. The meteorological department and the Internet online monitoring collected a large number of...
This paper selected the 29 shares of listed companies as samples, including 13 shadow banks. This paper will use the company's shares daily closing price as the research sample and use GARCH model to calculate the VaR and CoVaR value of the company's share price gains. The empirical results show that compared with the traditional banking institutions, shadow banking institutions risk spillover effect...
Great efforts have been driven to improve the optimal decision for network selection, which is significant for vertical handover to meet user's rapidly increased requirements. Unfortunately, the instability of the basic decisive parameters is usually ignored, resulting in a high misjudgement ratio. Therefore, this paper proposed a novel parameter estimation algorithm to bridge the observed values...
Equipment operation activities in the phase of in-service will become more complex due to the high complexity of modern equipment, and thus produce the pressure on working of support resources allocation and support system design in the phase of design and development. Base on the uncertainty of equipment operation activities' time Sequence in in-service phase, in order to give a reliable result to...
This paper expands the standard pronunciation space (SPS) to include pronunciation errors for automatic pronunciation error detection (APED), uses HMMs to represent the different distributions of pronunciation errors, proposes an adaptive unsupervised clustering of pronunciation errors based on the similarity measures between two HMMs, and then refines more detailed acoustic models for APED within...
In order to analyze the impact of multi-functional support equipment failure, tasks of multi-functional support equipment during maintenance process were described, and maintenance plan of multi-functional support equipment was taken into consideration. Maintenance support process model considering multi-functional support equipment failure was put forward, and thereafter a simulation model was built...
With the great process in taking people as the foremost, the individual needs of customers should be well taken into account in the design of limited resources services system. College canteens are the typical services systems of this kind. There are generally three types of personal request in the canteen services: (i) the concentration of students after school has an impact on the peak with service...
The performance of traditional TCP congestion control protocol degrades when congestion and contention increase in ad hoc networks that use the IEEE 802.11 DCF. Many of the problems result from medium contention at the media access control (MAC) layer. In this paper, we present a new contention-based congestion control (CBCC) method according to a novel congestion information from MAC layer. This...
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