The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Rapid pace of global urbanization has posed significant challenges to urban transportation infrastructures. Existing urban transit systems suffer many well-known shortcomings, where public transits have limits on coverage areas, and fixed schedules, and private transits are expensive and fail to timely meet the demand needs. We thus envision a Cloud-Commuting system, that employs a giant pool of centralized...
It has been estimated that the cumulative sales of Electric Vehicles (EVs) will be up to 5.9 million and the stock of EVs will be up to 20 million by 2020 [1]. As the number of EVs is expanding, there is a growing need for widely distributed, publicly accessible, EV charging facilities. The public EV Chargers (EVCs) are expected to be found and will be needed where there is on-street parking, at taxi...
Credit card is a popular payment method and the transaction data keeps track of purchasing activities in people's daily lives. Extracting location of people's activities is an important task in many data mining problems because it may greatly help improve user experience and the service provided to people. Locating people from credit card transactions is equivalent to determining the location of every...
Rapid growth of data has provided us with more information, yet challenges the tradition techniques to extract the useful knowledge. In this paper, we propose MCMM, a Minimum spanning tree (MST) based Classification model for Massive data with MapReduce implementation. It can be viewed as an intermediate model between the traditional K nearest neighbor method and cluster based classification method,...
In this paper we study the characterization of asymptotic stability for discrete-time switched linear systems. We first translate the system dynamics into a symbolic setting under the framework of symbolic topology. Then by using the ergodic measure theory, a lower bound estimate of Hausdorff dimension of the set of asymptotically stable sequences is obtained. We show that the Hausdorff dimension...
In this paper, we construct a novel control using LS-SVM matrix operator to achieve the stablization of wheeled under-actuated manipulators. Further, the relative degree of the regulated output is assumed to be known enabling the system is feedback linearizable. By Lyapunov's direct method, it is shown that the tracking error can be controlled in a small neighborhood of zero. The methodology is applicable...
Propose a method of MAP for the supernatant from thickener of municipal wastewater treatment plant, principal orders of factors which affect MAP precipitation process, concluded by orthogonal experiment and the Optimal Test are as following: pH value, n(Mg):n(P) and reaction time. The optimum reaction conditions are pH = 9, n(Mg):n(P) = 1 and t = 30 min. The best removal efficiency of phosphate and...
Environmental factors are considered to be one of the elements responsible for the development of certain diseases. Examples of these environmental factors include deficiency of some elements (e.g., certain vitamins) that are necessary for maintaining a person's health or environmental contamination of an area by hazardous chemicals. For people living in a contaminated area, they are prone to get...
We focus on efficient algorithms for resource allocation problems in large wireless networks. We first investigate the link scheduling problem and identify the properties that make it possible to compute solutions efficiently. We then show that the node on-off scheduling problem shares these features and is amenable to the same type of solution method. Numerical results confirm the efficiency of our...
By reasonably predigesting the characteristics of the subminiature rotorcraft, a model for a subminiature rotorcraft is established and the linear time-invariant attitude dynamics with physical parameter of the subminiature rotorcraft at hover is obtained. A subspace-based state space system identification method and analysis of model uncertainty is applied to the model of rotorcraft. At last, the...
A simultaneous optical signal extracting and erasing scheme is presented by utilizing four-wave mixing in optical fiber. Two synchronized gate and negation gate pulses, coupled with data stream, produce FWM effect to implement extracting and erasing functions. Experimental results are successfully demonstrated with NRZ data at 10 Gb/s.
This paper proposes a new load balancing strategy based on a systematical research on current load balancing mechanism. The new strategy combines the methods of gossip propagation and replication policy, and adopts two different propagation policies to cope with light and heavy overloaded conditions so as to improve performance of networks. At the end of this paper, we prove the reliability and scalability...
Fast and efficient discovery of all neighboring nodes by a node new to a neighborhood is critical to the deployment of wireless ad hoc networks. Different than the conventional ALOHA-type random access discovery schemes, this paper assumes that all nodes in the neighborhood simultaneously send their unique on-off signatures known to the receive node. In particular, a transmitter does not transmit...
Link analysis has shown great potential in Web structure mining. Most existing link analysis methods treat a Web page as a node, a hyperlink as an edge in the Web graph. However, in reality, a Web page's importance is also affected by its semantic factor, the structure of WWW, and other factors. Therefore, traditional link analysis methods may not be so precise in reality. It is observed that the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.