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A computer has become possible to operate more services by improving the performance. Therefore, there is a growing tendency to aggregate a single computer. In consequence, a virtualization technology such as VM (Virtual Machine) is receiving a lot of attention.
Learning Analytic (LA) systems are aimed at supporting teachers in understanding the learning process by analyzing the information and the interaction of students with computer systems. In the case of a project-based learning process there is a need of introducing measure the student' activity as acquired via multiple modalities and then processed. The acquisition and processing needs to take into...
Erasure coding has been increasingly replacing replication in distributed storage systems, thanks to its lower storage overhead with the same level of failure tolerance. However, with lower storage overhead, the reconstruction overhead of erasure codes can increase significantly as well. Under the ever-changing workload, in which the data access can be highly skewed, it is difficult to achieve a well...
Software-Defined Networking (SDN) has great potentials in changing the fragile and complex enterprise networks. One operational challenge to SDN deployment is the settlement of legacy switches. A hybrid SDN consisting of both SDN and legacy switches may be a tradeoff. Nevertheless most of the current SDN control planes can not handle legacy switches. To overcome this problem, we present HybridFlow,...
This paper shall introduce the Taipei City Mass Rapid Transit underground section stations chiller Supervisory Control And Data Acquisition (SCADA) system and customized application software system development. Each station's existing chiller machine microprocessor Human Machine Interface (HMI) utilizes a standard communication protocol convertor and the environmental control system control room Open...
Communication of clients with the server passes through a wireless point of WiFi access. The attacking device is the laptop that has the software package of CommView for WiFi. The analysis of stability program by automatic telephone exchange on the basis of Asterisk NOW from unauthorized access to a telecommunication network is provided in this article. The software product on the basis of Asterisk...
In this paper, we conducted a review of techniques and methods used for collaborative data management for business purposes on the WEB. The aim was to propose a document flow optimization and to offer an information technology support for all departments of an organization. In a business organization or a firm, professionals involved in solving specific tasks either use the same data (common information)...
At present, more and more courses and exams are held in the college computer room, which leads to more complex operating environment and higher system requirements, so the systematic maintenance work is very difficult. In the article, we develope a control system by c# language, which combines with the actual usage of room and the blank space of the computer room management, aimed at focusing on monitoring...
Computational clouds have evolved to go beyond cost-effective on-demand hosting of IT resources and elasticity. The added features now include the ability to offer entire IT systems as a service that can quickly adapt to changing business environments. The new trend introduces challenges in datacenter resource management, including scalability, system-orientation, and optimization supporting both...
This paper aims to design a Hadoop system and evaluates the performance of a task allocation scheme. The task allocation scheme splits each job into tasks using an appropriate splitting ratio, and assigns tasks to slave servers based on server processing performance and network resource availability. We experimentally evaluate the performance of the scale out of the task allocation scheme with five...
This paper discloses improved existing or new fiscal cash registers and fiscal printers with improved existing or new internal or external communication devices without additional services, sending encrypted tax related information to a tax administration server.
This paper focuses on sensor data management in the Solar Car Optimized Route Estimation (SCORE) system which is currently being developed. The data collection is split into two phases: the a priori phase related to the environment and the real time phase related to the solar vehicle. The hardware and software architecture for a priori phase is illustrated in detail, while the real time phase is discussed...
The existing music projects terminal are mostly websites that computer can access, the mobile client and rare television set-top box terminals. Under the new forms of triple play, network music system of integrated information system supports three nets four terminal and with key technology such as network music creation, transmission and display and so on. In computer, mobile phone, radio and television...
In this paper, we investigate computing systems and network architectures, dedicated to high frequency trading applications and evaluate their performances. Both a high processing speed and low network latency are important for high-frequency traders. The financial market literature suggests, however, that extremely high speeds discourage other traders from participating in the market, therefore harming...
Background. The rise in cases of motor impairing illnesses demands the research for improvements in rehabilitation therapy. The study of robotics for enhancing motor recovery has been gaining momentum, but there is still little standardization of tools. Objectives. This paper shows the current development state of a proposed new robotic treatment platform, primarily geared towards post-stroke cases,...
OpenStack is one of the major open-source solutions for creating and managing Infrastructure as a Service (IaaS) cloud providers. In this paper, we explore how the Horizon dashboard allows us to access virtual machines via a web-based remote desktop client. Besides the default remote desktop clients (based on the noVNC software), we propose to integrate in the OpenStack dashboard other alternative...
TCP Incast is one of the typical datacenter problems that may affect network efficiency in a many to one transmission session, in which the completion time of the whole session depends on the last finishing flow. In this paper a session-aware mechanism is proposed that intelligently chooses only the leading flows to slow down at the presence of congestion, so the lagging ones will have a higher chance...
In this paper, we investigate the tags polling problem for large, multireader RFID systems. We take an approach completely different from that used so far for multireader protocols. Up to now, in the proposed protocols for this and related problems, first readers are scheduled so that those with overlapping ranges never operate at the same time. Then, proper protocols for each so scheduled reader...
Link flooding attack (LFA), as a new type of DDoS attack, can degrade or even cut off network connectivity of a target area. This attack employs legitimate, low-density flows to flood a group of selected links. Therefore, these malicious flows can hardly be distinguished by traditional schemes. In this paper, we propose a scheme called Woodpecker, which makes the LFA more difficult to take effect...
The widespread use of mobile technology has accelerated the popularity of social networking services, and has made these services convenient to access. This paper presents a behaviometric mobile application, namely TrackMaison (Track My activity in social networks). TrackMaison keeps track of social network service usage of smartphone users through data usage, location, usage frequency and session...
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