Scalability and Performance of Web Applications in a Compute Cloud

2011 ◽  
Author(s):  
Trieu C. Chieu ◽  
Ajay Mohindra ◽  
Alexei A. Karve
Keyword(s):  
Web Applications ◽  
And Performance

scholarly journals A WEBGIS FOR THE KNOWLEDGE AND CONSERVATION OF THE HISTORICAL WALL STRUCTURES OF THE 13<sup>TH</sup>&ndash;18<sup>TH</sup> CENTURIES

2017 ◽  
Vol XLII-5/W1 ◽  
pp. 551-556 ◽  
Author(s):  
G. Vacca ◽  
D. Pili ◽  
D. R. Fiorino ◽  
V. Pintus
Keyword(s):  
Performance Improvement ◽  
Open Source Software ◽  
Spatial Data ◽  
Web Applications ◽  
Research Project ◽  
Entire Study ◽  
Reading And Writing ◽  
Wall Structures ◽  
Construction Techniques ◽  
And Performance

The presented work is part of the research project, titled "Tecniche murarie tradizionali: conoscenza per la conservazione ed il miglioramento prestazionale" (Traditional building techniques: from knowledge to conservation and performance improvement), with the purpose of studying the building techniques of the 13<sup>th</sup>&amp;ndash;18<sup>th</sup> centuries in the Sardinia Region (Italy) for their knowledge, conservation, and promotion. The end purpose of the entire study is to improve the performance of the examined structures. In particular, the task of the authors within the research project was to build a WebGIS to manage the data collected during the examination and study phases. This infrastructure was entirely built using Open Source software. <br><br> The work consisted of designing a database built in PostgreSQL and its spatial extension PostGIS, which allows to store and manage feature geometries and spatial data. The data input is performed via a form built in HTML and PHP. The HTML part is based on Bootstrap, an open tools library for websites and web applications. The implementation of this template used both PHP and Javascript code. The PHP code manages the reading and writing of data to the database, using embedded SQL queries. <br><br> As of today, we surveyed and archived more than 300 buildings, belonging to three main macro categories: fortification architectures, religious architectures, residential architectures. The masonry samples investigated in relation to the construction techniques are more than 150. <br><br> The database is published on the Internet as a WebGIS built using the Leaflet Javascript open libraries, which allows creating map sites with background maps and navigation, input and query tools. This too uses an interaction of HTML, Javascript, PHP and SQL code.

Protection through Intelligent and Multimedia Captchas

2012 ◽  
Vol 3 (2) ◽  
pp. 44-58
Author(s):  
Wesam Al-Sudani ◽  
Amit Gill ◽  
Chen Li ◽  
Jidong Wang ◽  
Fei Liu
Keyword(s):  
Web Applications ◽  
Turing Test ◽  
Human Beings ◽  
Remote Site ◽  
Internet Applications ◽  
And Performance

The Complete Automatic Public Turing test to tell Computers and Humans Apart (CAPTCHA) is a modern implementation of the Turing test. A CAPTCHA asks a series of questions which are supposed to be relatively easy for mature human beings but hard for machines to answer. A CAPTCHA, as its name suggests, is generally used as a tool to distinguish human beings from machines when the corresponding party is invisible in a remote site. There are many CAPTCHAs proposed and widely used in many Internet applications, with varied strength and performance. In this article, a review of current CAPTCHAs is presented. Analysis and comparisons are provided for various CAPTCHAs. Two types of new CAPTCHAs, intelligent and multimedia CAPTCHAs, are proposed. Our experiments have shown that the newly proposed CAPTCHAs have stronger protection than most existing CAPTCHAs and they can be applied to various web applications, such as e-commerce.

Developing the Geospatial Big Data Benchmark: A Comparative Framework for Evaluating Raster Analysis on Big Data Platforms

2020 ◽  
Author(s):  
David Haynes ◽  
Philip Mitchell ◽  
Eric Shook
Keyword(s):  
Big Data ◽  
Web Applications ◽  
Mobile Web ◽  
New Knowledge ◽  
The World ◽  
Raster Analysis ◽  
Common Framework ◽  
Comprehensive Comparison ◽  
And Performance ◽  
Patterns And Processes

Technologies around the world produce and interact with geospatial data instantaneously, from mobile web applications to satellite imagery that is collected and processed across the globe daily. Big raster data allows researchers to integrate and uncover new knowledge about geospatial patterns and processes. However, we are also at a critical moment, as we have an ever-growing number of big data platforms that are being co-opted to support spatial analysis. A gap in the literature is the lack of a robust framework to assess the capabilities of geospatial analysis on big data platforms. This research begins to address this issue by establishing a geospatial benchmark that employs freely accessible datasets to provide a comprehensive comparison across big data platforms. The benchmark is a critical for evaluating the performance of spatial operations on big data platforms. It provides a common framework to compare existing platforms as well as evaluate new platforms. The benchmark is applied to three big data platforms and reports computing times and performance bottlenecks so that GIScientists can make informed choices regarding the performance of each platform. Each platform is evaluated for five raster operations: pixel count, reclassification, raster add, focal averaging, and zonal statistics using three different datasets.

Comprehensive Approach to Web Applications Testing and Performance Analysis

2007 ◽  
Author(s):  
Jan Murlewski ◽  
Jaroslaw Wojciechowski ◽  
Bartosz Sakowicz ◽  
Andrzej Napieralski
Keyword(s):  
Performance Analysis ◽  
Web Applications ◽  
Comprehensive Approach ◽  
And Performance

scholarly journals Comparison of web application state management tools

2021 ◽  
Vol 20 ◽  
pp. 183-188
Author(s):  
Kacper Szymanek ◽  
Beata Pańczyk
Keyword(s):  
Web Application ◽  
Solution Structure ◽  
Web Applications ◽  
Performance Testing ◽  
Community Support ◽  
Management Tools ◽  
State Management ◽  
Code Metrics ◽  
State Manager ◽  
And Performance

Modern web applications require flow of large amounts of data. To maintain order in code, a state manager was invented. With manager all data can be retrieved from and goes to one place. In this paper, four libraries for state management (NgRx, Ngxs, Redux, Vuex) were analyzed. Five criteria were used for the study: code metrics, solution structure, availability of ready-made implementations, community support, and performance testing. Results showed that there is not the best tool in every criterion, but when comparing the results obtained, the most universal solution is Vuex.

Mutation Testing and Its Analysis on Web Applications for Defect Prevention and Performance Improvement

2021 ◽  
Vol 17 (1) ◽  
pp. 71-88
Author(s):  
Suguna Mallika S. ◽  
Rajya Lakshmi D.
Keyword(s):  
Web Applications ◽  
Mutation Testing ◽  
Current Work ◽  
Code Coverage ◽  
Mutation Operators ◽  
Functional Attributes ◽  
Defect Prevention ◽  
Increasing Demand ◽  
And Performance ◽  
Future Direction

The society's increasing reliance on web applications with the growing online market and digitization of almost every service, there is an increasing demand for better reliability, security, and interoperability of web applications. Testing becomes an integral part of improving this reliability on web applications. Despite the innumerable number of tools, techniques, methods for testing web applications, there is still scope for expansion in the code coverage of web applications. Mutation testing with its expansive potential to expose vulnerabilities of web applications took a backseat owing to its exhaustive testing cycles. Some mutation operators related to security, performance, and other non-functional attributes of web applications are presented in the current work. In the current work, a thorough analysis of various mutations operators proposed by authors towards the non-existent operators thus far is presented. An augment of 47% of operators occurred in the present work. A concise discussion on the scope of work future direction of work is presented.

scholarly journals An Analysis of Security and Performance Concerns in Mobile Web Application Development: Challenges and Open Issues

2017 ◽  
Vol 5 (3) ◽  
pp. 26
Author(s):  
Douglas Kunda ◽  
Mumbi Chishimba ◽  
Mwenge Mulenga ◽  
Victoria Chama
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Application Development ◽  
Mobile Web ◽  
Web Application Development ◽  
And Performance ◽  
Session Hijacking ◽  
Application Developers ◽  
Cross Site ◽  
Open Issues

The paper focuses on security and performance concerns in mobile web development. The approach used in the study involved surveying journal publications to identify security and performance concerns. The paper highlights some of the contemporary issues currently being faced by application developers as they create, update and maintain mobile web applications including Cross-Site Scripting, Cookie hijacking/theft, location hijacking, history theft, behaviour analysis, session hijacking, API design, security and the type of web server used considered.

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