scholarly journals Fault tolerant high performance Information Services for dynamic collections of Grid and Web services

2007 ◽  
Vol 23 (3) ◽  
pp. 317-337 ◽  
Author(s):  
Mehmet S. Aktas ◽  
Geoffrey C. Fox ◽  
Marlon Pierce
Keyword(s):  
Web Services ◽  
High Performance ◽  
Fault Tolerant ◽  
Information Services ◽  
Performance Information

scholarly journals A Scalable Virtualized Server Cluster Providing Sensor Data Storage and Web Services

Symmetry ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1942
Author(s):  
Mei-Ling Chiang ◽  
Tsung-Te Hou
Keyword(s):  
Load Balancing ◽  
Web Services ◽  
Data Storage ◽  
High Performance ◽  
Fault Tolerant ◽  
Rapid Development ◽  
Sensor Data ◽  
Single Server ◽  
Multiple Services ◽  
The Difference

With the rapid development of the Internet of Things (IoT) technology, diversified applications deploy extensive sensors to monitor objects, such as PM2.5 air quality monitoring. The sensors transmit data to the server periodically and continuously. However, a single server cannot provide efficient services for the ever-growing IoT devices and the data they generate. This study bases on the concept of symmetry of architecture and quantities in system design and explores the load balancing issue to improve performance. This study uses the Linux Virtual Server (LVS) and virtualization technology to deploy a virtual machine (VM) cluster. It consists of a front-end server, also a load balancer, to dispatch requests, and several back-end servers to provide services. These receive data from sensors and provide Web services for browsing real-time sensor data. The Hadoop Distributed File System (HDFS) and HBase are used to store the massive amount of received sensor data. Because load-balancing is critical for resource utilization, this study also proposes a new load distribution algorithm for VM-based server clusters that simultaneously provide multiple services, such as sensor services and Web service. It considers the aggregate load of all back-end servers on the same physical server that provides multiple services. It also considers the difference between physical machines and VMs. Algorithms such as those for LVS, which do not consider these factors, can cause load imbalance between physical servers. The experimental results demonstrate that the proposed system is fault tolerant, highly scalable, and offers high availability and high performance.

scholarly journals Soft Error Susceptibility Analysis of SRAM-Based FPGAs in High-Performance Information Systems

2007 ◽  
Vol 54 (6) ◽  
pp. 2714-2726 ◽  
Author(s):  
Hossein Asadi ◽  
Mehdi B. Tahoori ◽  
Brian Mullins ◽  
David Kaeli ◽  
Kevin Granlund
Keyword(s):  
Information Systems ◽  
High Performance ◽  
Soft Error ◽  
Performance Information ◽  
Susceptibility Analysis

scholarly journals Implementation of Smart Mirror using Raspberry PI

2021 ◽  
pp. 234-238
Author(s):  
Aditya Tepalwar ◽  
Asha Sherikar ◽  
Prajyot Mane ◽  
Vishal Fulpagare
Keyword(s):  
Web Services ◽  
Information Services ◽  
Mirror System ◽  
Weather Data ◽  
Raspberry Pi ◽  
The Internet ◽  
Computer Assisted ◽  
User Data ◽  
Information And Communication ◽  
Smart Appliance

Smart appliance design that includes multimedia intelligence to deliver comfortable, convenient, and secure personal services in the home is becoming increasingly crucial in the age of information and communication technology. This research looks at the design and execution of a novel interactive multimedia mirror system called as "smart mirror." The glass that will be used is the foundation of the design of a smart mirror. Two-way glass is suggested because it allows the visuals on the display to be seen more clearly. Our way of life has evolved to the point where making the best use of one's time is critical. Based on user surveys and prototype implementation, we propose the development of an innovative appliance that incorporates interactive information services delivered via a user interface on the surface of a mirror. Our work is based on the assumption that we all check ourselves in the mirror before leaving the house, so why shouldn't the mirror be intelligent? Smart Mirrors will eventually replace regular mirrors, providing users with both mirror and computer-assisted information services as technology improves. Because of the Raspberry Pi microcontroller cards aboard, the devices can connect to the internet, download data from the internet, and show that data on the mirror. Weather data, time and location data, current event data, and user data gathered from web services using a Raspberry Pi 3 microcontroller card are all included in the designed intelligent mirror system. The mirror will light up when the user steps in front of it. When thinking about this project, phrases like Smart Mirror, Interactive services, Raspberry Pi , and Web services come to mind.

scholarly journals CENTIMETRE-ACCURACY IN FORESTS AND URBAN CANYONS – COMBINING A HIGH-PERFORMANCE IMAGE-BASED MOBILE MAPPING BACKPACK WITH NEW GEOREFERENCING METHODS

2020 ◽  
Vol V-1-2020 ◽  
pp. 333-341
Author(s):  
S. Blaser ◽  
J. Meyer ◽  
S. Nebiker ◽  
L. Fricker ◽  
D. Weber
Keyword(s):  
Web Services ◽  
High Performance ◽  
Large Scale ◽  
Superior Performance ◽  
City Centre ◽  
Visual Localization ◽  
Mobile Mapping ◽  
Coordinate Measurement ◽  
Collaborative Processes ◽  
Mobile Mapping System

Abstract. Advances in digitalization technologies lead to rapid and massive changes in infrastructure management. New collaborative processes and workflows require detailed, accurate and up-to-date 3D geodata. Image-based web services with 3D measurement functionality, for example, transfer dangerous and costly inspection and measurement tasks from the field to the office workplace. In this contribution, we introduced an image-based backpack mobile mapping system and new georeferencing methods for capture previously inaccessible outdoor locations. We carried out large-scale performance investigations at two different test sites located in a city centre and in a forest area. We compared the performance of direct, SLAM-based and image-based georeferencing under demanding real-world conditions. Both test sites include areas with restricted GNSS reception, poor illumination, and uniform or ambiguous geometry, which create major challenges for reliable and accurate georeferencing. In our comparison of georeferencing methods, image-based georeferencing improved the median precision of coordinate measurement over direct georeferencing by a factor of 10–15 to 3 mm. Image-based georeferencing also showed a superior performance in terms of absolute accuracies with results in the range from 4.3 cm to 13.2 cm. Our investigations showed a great potential for complementing 3D image-based geospatial web-services of cities as well as for creating such web services for forest applications. In addition, such accurately georeferenced 3D imagery has an enormous potential for future visual localization and augmented reality applications.

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