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A good port management system must be able to perform safe, predictable, and efficient execution of transport processes. In order to improve the quality of the port management, a robust navigation system is required, which enables to provide the positions of vessels 24/7 on either open or impeded environment. This paper describes a robust georeferencing system that could satisfy centimeter-level accuracy...
Prefetching is widely used in modern computer systems to mitigate the impact of long memory access latency by paying extra cost in memory and cache accesses. However, the efficacy of prefetching significantly degrades in the memory hierarchy using the emerging spintransfer torque random access memory (STT-RAM) as last-level cache (LLC) due to the long write access latency. In this work, we propose...
Knowledge of where vehicles will be in near future helps users in daily planning, traffic monitors in vehicles scheduling, advertisers in fixed point advertising, and especially helps in communication network source provisioning. In this paper, we analyze the predictability of taxi mobility based on their locations and time period records and we present a prediction method of taxis for their next...
A fuzzy approach to assess service satisfaction values of retailers is discussed in this paper, which has been developed from fuzzy assessment methods and applied to questionnaire analysis of retailers' service satisfaction. Subjective judgments are often vague and it is not easy for retailers to express the satisfaction of service quality using an exact numerical value, and suggest the necessity...
The goal of information integration is to provide uniform access interface to a set of heterogeneous and autonomous information sources. In this paper, an information integration framework is implemented to meet this goal using the technologies of grid and XML in two steps: schema integration and instance integration. This paper describes this framework in details, presents an Information Description...
Nowadays, power quality detecting devices have some problems in the applications. The low cost and the multi-function have been the main contradiction. For these, this paper designs a dual-core power quality detecting system based on the latest TI's OMAP-L138 chip, which has both ARM and DSP core. With the high-speed ADS8556 chip, the system achieves real-time data acquisition, processing and analysis...
Transformer fault diagnosis based on relevance vector machine (RVM) is proposed. The advantages of the RVM over the support vector machine (SVM) are probabilistic predictions, automatic estimations of parameters, and the possibility of choosing arbitrary kernel functions. Most importantly, RVM is capable of comparable classification accuracy to SVM, but with fewer relevance vectors (RVs) and higher...
This paper proposes an algorithm named IFMADM based on maximizing the difference among candidate networks in order to obtain weights of each attribute. Simulation results reveal that it outperforms the AHP-based algorithm in several respects. Firstly, it can not only ensure the accuray of decision making but also improve the distance among candidate networks. Secondly, the changes of number of attributes...
Grinding production rate (GPR) is a vital index of grinding process. Getting accurate and timely information of GPR is the premise of enhancing grinding efficiency and conducting optimization control. However, for complexity of grinding process, there is no effective method to on-Line predict GPR. On the basis of soft sensor principle, a new sCheme that applying improved mixed-kernel support vector...
In order to provide communication services in Delay Tolerant Networks (DTNs) where it lacks of end-to-end paths between the communication sources and destinations, a variety of routing schemes have been proposed. Consequently it is significant to accurately evaluate their performance to show their advantages and inferiority. At the same time, the energy is very limited in a large number of DTNs, such...
Research on various eco-environmental sounds is very important for people to understand a particular area. However, eco-environmental sounds have many specific properties such as the diversity, high background noise and non-stationary structure which make many traditional audio features hard to characterize them accurately. In this paper, a novel feature extraction technique based on Matching Pursuit...
The traditional calculation methods of the turbine governing stage variable operation condition need to apply the governing stage general characteristic curves supplied by factory. In this paper, based on the currently existing governing stage general characteristic algorithm model, a new algorithm which has a higher computational precision and small number of convergence is proposed .The steam program...
The calculation method of steam turbine's stage off-design conditions is an effective means to realize the security and economical efficiency, but at present, research on the calculation method of governing stage off-design conditions in consideration of overlap degree seldom can be found in documents. In order to ensure the lift-flow characteristic curve of governing valve is a continuous smooth...
In view of the inherent localization of traditional contact CMM, we exploit a miniature five-coordinate laser and CCD compound measuring machine. It is competent to measure such kind of workpieces which are soft, easy-deformed and with complex structure. This machine adopts several key technologies including the latest digital measuring technique, high-precision mechanical structure, laser prober...
Support Vector Machine (SVM) is based on statistical learning theory which developed from the common machine learning. It is an effective tool to deal with limited samples. This paper proposes a model of the dissolved gas analysis (DGA) of transformer based on Multi-class SVM. Firstly, with the combination of SVM multi-class classification methods one-versus-rest (1-v-r) and one-versus-one (1-v-1),...
Fingerprint is one of the biometrics used to identify a person. Alignment is an important step in fingerprint recognition, affecting greatly the speed and accuracy of matching. Eight types of Special ridges are introduced to align two fingerprints. The ridge with maximum of sampled curvature is used as reference ridges for initial alignment. And corresponding special ridges paired by topology get...
Ensemble classification methods have shown promise for achieving higher classification accuracy for microarray data classification analysis. As noise values do exist in all microarray data even after microarray data preprocessing stage, robustness is therefore another very important criteria in addition to accuracy for evaluating reliable microarray classification algorithms. In this paper, we conduct...
A data set contains patient records of Ultra Short Stay Unit (USSU) at emergency department at Toowoomba Base Hospital. Some patients were admitted to the hospital for further treatment after a long stay at USSU and other patients were discharged after a short stay at USSU. In most hospitals the USSU is not enough for large demand, and there will be better utilisation of the unit if medical professionals...
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