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We propose a Hamming distance based approximate similarity text search (HASTS) algorithm to improve the quality of queries in massive text data. The HASTS algorithm first constructs an index table with the substrings extracted randomly from the feature fingerprints generated by the SimHash algorithm. Then, it assigns weights to text terms to reduce the size of the candidate set. Furthermore, the final...
Today, the data exchanged over online social networks (OSNs) represents a significant fraction of Internet traffic. However, OSN content is different from more traditional web content, as it is more likely to be generated at the edge of the network, to be exchanged within a local geographic region, and to possess a more even popularity distribution with fewer popular objects. Unfortunately, most OSNs...
This paper proposes a mail control system called things mail system (shortened as tmail), which manage and control the delivery of physical mails based on the TCP/IP network and the express services provided by express companies. The tmail systems consist of tmail servers and tmail boxes, which store physical mails for users temporally and are supervised by tmail servers through the Internet. In order...
Blended Learning is a kind of strategy that implement teaching by comprehensive applying different learning theory, different techniques and tools, as well as the different application of methods. This paper elaborates the principle of blended learning and introduces the function of Database Principles and Applications online course. In addition, the paper discusses the instructional design of blended...
This paper proposes a quantum neural network model using conjugate gradient back-propagation algorithm or QCGBP. The QCGBP model is constructed explicitly. Meanwhile, the learning rules for parameters of the network are also presented. According to the experiment result on TEL-8 datasets, QCGBP network presents better performance than conventional BP network in accelerating the convergence rate without...
Motion-compensated frame rate up-conversion is used to convert video/film materials of low frame rates to a higher frame rate so that the materials can be displayed with smooth motion and high-perceived quality. It consists of two key elements: motion estimation and motion-compensated frame interpolation. It requires accurate motion trajectories to ensure quality results and low computational cost...
With the evolution and proliferation of the All-IP core network and the mobile access network, more and more legacy services are being transferred to the converged and unified IP-based platform. For this transfer, SIP (Session Initial Protocol) has been adopted by IETF, ETSI, and 3GPP for creating, modifying, and terminating multimedia sessions. SIP with application-level mobility support can replace...
This article puts forward a method to access the data and analyzed results from the monitoring system of environment based on WSN with the B/S mode. It resolves the problem of low speed of page refresh with Ajax. The experiment shows that the partial refresh feature of Ajax can make it possible for the users to get access to the data and analyzed results easily through the browser, and experience...
Service discovery protocol (SDP) is one of the fundamental infrastructures in pervasive computing. However, various SDPs differ on service description model, system architecture, deployment network and service discovery mechanism. It is highly necessary to develop a framework that can provide interoperability for multiple SDPs. In this paper, we carry out an empirical study on building a novel interoperable...
A novel personalized instructing recommendation system (PIRS) is designed for Web-based learning. This system recognizes different patterns of learning style and Web using habits through testing the learning styles of students and mining their Web browsing logs. Firstly, it processes the sparse data by item-based top-N recommendation algorithm in the course of testing the learning styles. Then it...
A wireless mesh network (WMN) provides a flexible and low-cost solution for end users to connect to the Internet through its multi-hop infrastructure. For such a network to proliferate, a fundamental problem that must be solved is to ensure the fair allocation of network bandwidth to all participating parties. This paper proposes a cross-layer design for achieving end-to-end maxmin fairness in WMNs...
In order to increase the value of the phrase transition on the regular network, which can be used to measure the capacity of network to process traffic flow, in this paper, we propose a simple traffic flow model for scale-free network based on randomly choosing the shortest path and further discuss the two different routing strategies to enhance the traffic capacity of scale-free networks. The simulation...
The recent advances in wireless networking technologies and the growing success of mobile computing devices, such as PDA, pocket PC and third generation mobile phone, are enabling new classes of applications that present challenging problems to designers. The intrinsic constraints from limited device resources and frequent mobile disconnections cause that wireless applications can not be working smoothly...
A Web-based operational skills examination and evaluation system is designed and implemented for computer courses. It consists of four systems, including preparation, examination, monitor and auto-grading subsystem. Various techniques involving DCOM, mark-method and fuzzy-match are adopted in this system, and a universal approach is generalized to enable auto-grading system suitable for different...
Due to the promising features of Web services, their deployment and research are booming. Among them, various techniques for Web service composition have been developed. In this paper, we propose a new composition framework. We use automata to describe behaviors of Web services. Each of underlying Web services can interact with others through asynchronous messages passing according to its interaction...
In order to enhance the security of Web service as well as to support the differentiated service, the paper puts forward an adaptive model, which is based on active defense strategy. It uses a network prediction model on base of self-similar sequence theory to estimate current slates of transfer servers in end-system, then classifies them with fuzzy-C-means clustering method. Finally, we bring forward...
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