On the basis of the introduction of related concepts and theories, analyze the construction process of parallel transportation system and its application in traffic signal control system. The parallel transportation s...
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ISBN:
(纸本)9781479905300;9781479905294
On the basis of the introduction of related concepts and theories, analyze the construction process of parallel transportation system and its application in traffic signal control system. The parallel transportation system of Tailiu road is established and applied in the estimation of effectiveness, the selection of control plan, and the development trend forecast in the project of rebuilding traffic signal control system on Tailiu road. It is shown that our methods are effective in practice.
This paper presents an effective solution to track the maximum power and improve the security of small scale wind power system, aiming to optimize the efficiency of wind energy conversion and connecting wind generator...
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ISBN:
(纸本)9781479905300;9781479905294
This paper presents an effective solution to track the maximum power and improve the security of small scale wind power system, aiming to optimize the efficiency of wind energy conversion and connecting wind generators to the electrical grid. The controller of the generation system used Perturbation Method of duty cycle to facilitate the construction of control algorithm, and improved its robustness. Due to the complexity of the wind turbine operating environments. The effectiveness of the proposed control method is evaluated through simulation tests performed in MATlab/SIMULINK. The article presents a controller which uses an ARM and also designed the boost circuit, measure circuit, processes circuit, as well as drive circuit. The results obtained demonstrate the effectiveness of the proposed control functionalities, which can be said that the design of boost circuit is reasonable.
Social tagging, as a novel approach to information organization and discovery, has been widely adopted in many Web 2.0 applications. Tags contributed by users to annotate a variety of Web resources or items provide a ...
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Social tagging, as a novel approach to information organization and discovery, has been widely adopted in many Web 2.0 applications. Tags contributed by users to annotate a variety of Web resources or items provide a new type of information that can be exploited by recommender systems. Nevertheless, the sparsity of the ternary interaction data among users, items, and tags limits the performance of tag-based recommendation algorithms. In this article, we propose to deal with the sparsity problem in social tagging by applying random walks on ternary interaction graphs to explore transitive associations between users and items. The transitive associations in this article refer to the path of the link between any two nodes whose length is greater than one. Taking advantage of these transitive associations can allow more accurate measurement of the relevance between two entities (e.g., user-item, user-user, and item-item). A PageRank-like algorithm has been developed to explore these transitive associations by spreading users' preferences on an item similarity graph and spreading items' influences on a user similarity graph. Empirical evaluation on three real-world datasets demonstrates that our approach can effectively alleviate the sparsity problem and improve the quality of item recommendation.
Movie recommendation is a very popular service in internet based movie related websites such as NetFlix, MovieLens. The performance of the recommendation plays the key role in the user experience. Existing works have ...
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An Emergency Traffic Evacuation management Platform is developed in this paper to support evacuation planning and decision making for city managers. The platform is based on Eclipse RCP, a programming framework kept u...
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ISBN:
(纸本)9781479903801
An Emergency Traffic Evacuation management Platform is developed in this paper to support evacuation planning and decision making for city managers. The platform is based on Eclipse RCP, a programming framework kept updating by the Eclipse RCP open source project. Architecture design and implementation of the platform are mainly discussed. Modularization is the basic idea when building the platform. At the last of the paper, we suppose that a sudden disaster has happened somewhere in Hangzhou and the platform is used to manage the evacuation planning. Experiments show that evacuation time increases linearly with the amount of evacuation demand in a certain range, and we draw the conclusion that balanced improvements on the whole road network should be made instead of only on the "bottlenecks".
Spatio-temporal data mining is finding applications in many domains, such as public health, public safety, financial fraud detection, transportation, and product lifecycle management. Correlation analysis is an import...
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Spatio-temporal data mining is finding applications in many domains, such as public health, public safety, financial fraud detection, transportation, and product lifecycle management. Correlation analysis is an important spatio-temporal mining technique for unveiling spatial and temporal relationships among multiple event types. This paper presents a new measure for assessing and analyzing spatio-temporal cross-correlations. This measure extends Ripley's K(r), a widely used measure of spatial correlation, with an additional temporal dimension. Empirical studies using real-world data show that the new measure can lead to a more discriminating and flexible spatio-temporal data analysis framework. In contrast with its predecessor, this measure also allows the discovery of leading (and potentially causal) event types whose occurrences precede those of other event types. Findings from analyses employing this measure may bear important managerial implications.
Bus Rapid Transit (BRT) is an effective way to increase urban traffic capacity. But its operation and scheduling optimization are difficult. In this article, Parallel BRT Operation management System (PBOMS) is constru...
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This paper proposes a novel algorithm for parking motion of a Car-like mobile robot. The algorithm presented here addresses calculating equations for planning a parking path in real time. Moreover, by incorporating th...
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The AGV decision making subsystem directly affects the performance of the vehicle. The information it uses can be classified into "Objective Information" and "Subjective Information" two major grou...
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