Search

This paper shows the development of a web environment for the construction of Archimedes and Plato polyhedra in Augmented Reality (AR) and Virtual Reality (VR). In this environment we used the geometric transformations of translation and rotation with the structure of hierarchies of HTML pages, without the use of the coordinates of each polyhedra vertex. The developed environment can be used in classroom to visualize the polyhedra in Augmented Reality, with the possibility of manipulations of the graphical representations by students in the environment created in Virtual Reality. Other studies that can be developed with the polyhedra modeled are areas, volumes and the relation of Euler. Another important content that can be developed is truncation, because seven Archimedes polyhedra are obtained by using truncation of Plato's polyhedrons. With this work, it becomes possible to develop didactic materials with a simple technology, free and with great contribution to improvement of the teaching of Geometry and other areas that use representation of 3D objects.

En el mundo globalizado se requiere contar con ingenieros líderes de proyectos, que puedan realizar labores de evaluadores de proyectos con éxito. El sistema propuesto permite hacer un análisis comparativo de los diferentes proyectos participantes en eventos de invención, innovación y creatividad, basados en sus características de calidad en uso, funcionalidad y usabilidad, mediante un plan de métricas externas y de calidad en uso. El modelo está basado en normas internacionales (ISO/IEC 9126, 14598, IEEE 1061) y modelos mexicanos (MECHDAV), y software propuesto, es desarrollado en un ambiente visual WEB, para dispositivos móviles (tabletas), permiten evaluar genéricamente la calidad de los proyectos-productos-servicios que participan en los concursos mencionados; este sistema proporciona un soporte a las personas evaluadoras (jurados) para emitir dictámenes imparciales con mayor precisión cuantitativa. Este sistema está dirigido a organizaciones, empresas y usuarios finales que necesiten seleccionar, fácilmente, los proyectos desarrollados con más calidad, para ser los ganadores en estos concursos. Se proporciona una guía para la instrumentación concreta de la evaluación, así como sus rangos, la presentación, procedimientos y documentación. In the globalized world, the participation of leading project engineers who can successfully perform project evaluators' work, is required. The proposed system allows to make a comparative analysis of the different projects participating in events of invention, innovation and creativity, based on their characteristics of quality in use, functionality and usability, through a plan of external metrics and quality in use. The model is based on international standards (ISO / IEC 9126, 14598, IEEE 1061) and Mexican models (MECHDAV), and the proposed software is developed in a visual WEB environment for mobile devices (tablets), allow to evaluate the quality generically Of the projects-products-services involved in the aforementioned competitions; This system provides support to evaluators (juries) to issue impartial opinions with greater quantitative accuracy. This system is aimed at organizations, companies and end users who need to easily select the projects developed with the highest quality, to be the winners in these competitions. A guide is provided for the specific instrumentation of the evaluation, as well as its ranks, presentation, procedures and documentation.

In this paper, we study the effect of Web environment temporal background in pre-dicting e-commerce item sales, especially those in temporary sales. Temporary sales nowadaysare a popular strategy for quickly clearing inventories. For traditional recommender systems,predicting the sales of an item is done based on its past purchase records. For temporarysales items, however, such records are not available. In order to make recommendation forsuch items, contextual information, such as product descriptions, is usually used. We investi-gate whether temporal background in the Web environment can be additional useful contextualinformation in recommender systems. It is assumed that items consistent with the temporalbackground would have higher demands. We propose a method for representing the temporalbackground using word embeddings of e-commerce activities and social media data, and eval-uate their effect on sales prediction. Through empirical analysis with real-world data, we foundthat temporal background does have positive effects for sales prediction. The findings in thispaper can be conveniently incorporated into future recommender system designs.

The rapid increase in web sites has created large volumes of data in web environment, which generates a problem of how to extract and gain useful knowledge from such data. Extracting such knowledge helps to discover, understand and predict user behaviors based on his interaction with the website. This paper introduces two neural network based systems, one for web visitor recognition according to their web logs pattern, and the other for web visitor classification according to the visited pages. This will introduce rapid services and save user time with web through a database connected to these neural networks Such system can be used to improve efficiency and effectiveness in searching for information on the web. Complete architecture of the networks is given based on supervised and unsupervised learning paradigms. Experiments have been carried out in order to validate this approach.

إستهدف البحث بيان الکشف عن فاعلية مصدر التقويم التکويني ( معلم – أقران – ذاتي ) المناسب في بيئة الويب التشارکية في تنمية الجوانب المعرفية و الأدائية لمهارات تصميم مواقع الويب لتلاميذ الحلقة الثانية من التعليم الأساسي وکذلک تحقيق جودة المنتج لدى التلاميذ ولتحقيق أهداف البحث تم تطبيق الإجراءات الخاصة بتصميم المحتوى التعليمي وإدارته عبر منصة Edmodo ، وکذلک تم إعداد أدوات البحث والتي تمثلت في إعداد قائمة مهارات تصميم مواقع الويب ، وإختبار تحصيلي ، وبطاقة ملاحظة ، وبطاقة تقييم جودة المنتج ؛ وقد أوضحت النتائج تفوق نمط تقويم الذات في الاختبار التحصيلي المعرفي مقارنة بالنمطين الأخرين في المجموعات التجريبية الثلاثة وتفوق نمط تقويم الأقران في کل من بطاقة الملاحظة وبطاقة تقييم جودة المنتج مقارنة بالنمطين الأخرين في المجموعات التجريبية الثلاثة The research aimed at explaining the effectiveness of the source of formative evaluation (teacher - peers - self) appropriate in the participatory web environment in developing knowledge and performance aspects of website design skills for students of the second cycle of basic education as well as achieving product quality for these students and to achieve the goals of the research procedures were applied For educational content design and management across the Edmodo platform, as well as the research tools developed which consisted of preparing a list of web design skills, achievement test, note card and product quality rating card; The results showed the superiority of the self-evaluation pattern in the cognitive achievement test compared to the other two types in the three experimental groups and the superiority of the peer evaluation style in both the observation card and the product quality evaluation card compared to the other two patterns in the three experimental groups

While there is growing demand for use of climate model projections to understand the potential impacts of future climate on resources, there is a lack of effective visuals that convey the range of possible climates across spatial scales and with uncertainties that potential users need to inform their impact assessments and studies. We use usability testing including eye tracking to explore how a group of resource professionals (foresters) interpret and understand a series of graphical representations of future climate change, housed within a web-based decision support system (DSS), that address limitations identified in other tools. We find that a three-map layout effectively communicates the spread of future climate projections spatially, that location-specific information is effectively communicated if depicted both spatially on a map and temporally on a time series plot, and that model error metrics may be useful for communicating uncertainty and in demonstrating the utility of these future climate datasets.

The rapid change and development experienced by digital transformation and globalization affects the economic systems of countries and obliges the accounting profession, which has an important place in this system, to update itself in parallel with this development.The accounting profession, which has a dynamic structure, is actively engaged in a continuous and visible change and renewal activity according to time and need.In this process, accounting professionals are likely to encounter many problems related to the functioning of professional activities. In this research, it is aimed to determine the problems, professional satisfaction levels and expectations of the accounting professionals operating in Turkey.For this purpose,survey in web environment was prepared and implemented for accounting profession members operating throughout Turkey.The obtained 406 surveys were evaluated and analyzed using the SPSS program.According to the results of the study, changes in legislation frequently and difficult to follow, and the fact that some professionals keep books cheaply, were determined as the most problematic statements.Furthermore, the majority of the surveyed professionals expressed their satisfaction with their profession and stated that a new regulation should be made regarding entry into the profession.

На сучасному етапі інноваційного розвитку машинобудування України авіаційна і ракетно-космічна галузі є рушійними силами, які визначають конкурентоспроможність країни і напрямки в розвитку науки. Незважаючи на прогресивність вище зазначених галузей сьогодні їх розвиток далеко не так динамічний, проходить в умовах дефіциту фінансових і людських ресурсів. У зв'язку з цим особу актуальність набуває проблема організації процесу управління ресурсним забезпеченням виробництва наукомісткої продукції. Управлінню стратегічними ресурсами присвячено ряд робіт. Їх детальний аналіз показав, що ця проблема вирішується не в достатньому обсязі і не розкриває підходи до вирішення завдання оптимізації ресурсного забезпечення створення наукоємної продукції на різних етапах її життєвого циклу з урахуванням галузевих особливостей і сучасного аналітичного інструментарію, в тому числі з використанням можливостей WEB середовища. Це обґрунтовує необхідність вдосконалення існуючих і розробки нових відповідних методичних інструментів, спрямованих на підвищення ефективності ресурсного забезпечення. Одним із найбільш ефективних і менш затратних підходів до вирішення цього питання є використання спеціалізованих систем планування ресурсів підприємства ( ERP -систем).

International audience; We describe the Tonnetz web environment and some of the possible applications we have developed within a pedagogical workshop on mathematics and music that has been conceived for high-school students. This web environment makes use of two geometrical representations that constitute intuitive ways of accessing some theoretical concepts underlying the equal tempered system and their possible mathematical formalizations. The environment is aimed at enhancing "mathemusical" learning processes by enabling the user to interactively manipulate these representations. Finally, we show how Tonnetz is currently being adapted in order to lead computer-based experiences in music perception and cognition that will be mainly carried at universities. These experiences will explore the way in which geometrical models could be implicitly encoded during the listening process. Their outcome may reinforce educational strategies for learning mathematics through music.

Often, during the development of an iOS- or macOS-based application, we come across requirements where the app needs to interact in some way with a web page that is being loaded within the app itself. These requirements could be because that you already have a feature developed on the Web which you want to reuse, or you want to implement a cross-platform feature using a web environment.

This study aimed to illustrate some government web archiving initiatives in several countries and stablish an overview of the Brazilian scenario with regard to the preservation of content published on government websites. In Brazil, although there is a robust set of laws that determine the State to manage, access and preserve its documents and information, there is still no policy for the preservation of web content. The result is the erasure and permanent loss of government information produced exclusively through websites. It is noticed that there are several government initiatives for web archiving around the world, which can be used as examples for the implementation of a Brazilian policy. It is concluded that the long-term maintenance of governmental information available on the web is fundamental for public debate and for monitoring governmental actions. To ensure the preservation of this content, the country must define its policy for the preservation of documents produced in a web environment.

International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 12, 7, 12A7C: 1-9

The article focuses on the research and design of the infrastructure used for data collection from the network traffic of the CLOUD platform. The aim was to identify the structure of network traffic that occurs in the CLOUD platform. From the mentioned data it is possible to evaluate network security of the protocols used in communication and subsequently compare the obtained data with the security standards introduced in the experimental platform. When implementing the measurement, the NetFlow protocol was used, enabling data collection directly on virtual machines located in the CLOUD platform. The measured data was then stored in the non-relational database Elasticsearch. The selected database is intended for the analysis of a large amount of data. The most important part is the creation of an interactive web environment in order to interpret the measured data in a user-friendly form. The next step in the processing of measured data involves the application of artificial intelligence methods to evaluate and predict the existence of potential security problems.

The image CropTool allows users to crop images present on Wikimedia Commons without leaving the Wikimedia family of sites within a web environment. We implemented the same workflow for videos with the VideoCutTool. Previously, a video on Wikimedia Commons had to be downloaded, changed, and later re-uploaded to Commons. The previous process took a significant amount of time and requires the use of outside software, while the VideoCutTool allows authorized users to work up-to 10x faster. This paper talks about the features of VideoCutTool and its implementation. The tool is currently live on https://tools.wmflabs.org/video-cut-tool/ and published under the Creative Commons Attribution-ShareAlike 4.0 licence.

espanolLos sistemas de control de turnos son una herramienta indispensable para cualquier empresa que atiende un gran numero de personas en la labor de su dia a dia. En el proyecto aqui expuesto se presenta un sistema integral desarrollado en un ambiente web, a traves de la metodologia de desarrollo Scrum, obteniendo como resultado la creacion de reportes e historicos, la gestion de la empresa, asi como verificar la productividad en tiempo real mediante graficas. EnglishTurn control systems are an indispensable tool for any company that attends a large number of people in the work of their day to day. In this project, is presented an integral system developed in a web environment, through the methodology of scrum development, obtaining as result the creation of reports and historical, the management of the company, as well as verifying the productivity in real time by means of graphs.

The existing mesh segmentation methods currently require long training times and have high computational complexity. Consequently, many of these methods cannot meet the rapid requirements of digital geometry processing in the Web environment. This paper proposes an online rapid mesh segmentation method based on an online sequential extreme learning machine (OS-ELM). In the training stage, the OS-ELM is trained by analyzing the mapping relationship between the shape descriptors of the mesh and the Gaussian curvature threshold. We reduce the dimensionality of the shape descriptor vector via principal component analysis (PCA) and extract the Gaussian curvature threshold of the mesh as the sample label using statistics. In the segmentation stage, the Gaussian curvature threshold is quickly extracted to realize the online rapid mesh segmentation via the OS-ELM. Simultaneously, the OS-ELM is updated to realize online incremental learning based on a small number of training samples. Our method is verified using the meshes provided from ShapeNetCore. The experimental results indicate that segmentation results similar to manual segmentation can be rapidly generated online using our method.

Irrational Online Shopping Behavior is defined as “a series of irrational decision-making behavior made by consumers due to the influence of various factors in the virtual web environment”. This paper aims to discuss irrational online shopping behavior of an excessive consumption, impulsive consumption and bundled consumption under the influence of mental accounting, and further discusses the internal mechanism of irrational online shopping behavior from the perspective of mental accounting theory: that is, consumers utilize a unique mental account when shopping online and how they mentally code, book, and value this account before, during, and after purchase. Finally this paper seeks to serve as a practical inspiration towards consumers and businesses.

It is widely received that personal records are a kind of unique documentary evidence for both individual and the society. Thus, same care is required for the preservation of personal records as for public records. While personal archiving in the analogue environment has been extensively studied by scholars from different fields, the rapidly changing web environment are raising new challenges on personal information behavior, further, personal digital archiving. To effectively address these challenges, it is important to first understand what the individuals’ perception and behavior of personal digital archiving are. The proposed presentation aims to contribute to this knowledge by discussing the preliminary results of a mixed-method study on the behavior and perception of personal digital archiving of Chinese university students. More specifically, the mixed-method study is approached sequentially by first using a web-based questionnaire to investigate Chinese university students’ perception of personal digital archiving when using email and blogs, which is followed by a semi-structured interview of information professionals to solicit their opinions on the results of the web-based questionnaire and the role of information professionals for facilitating personal digital archiving. The results of this study will shed light on Chinese university students’ awareness of personal records preservation, the measures used for personal records preservation, the difficulties encountered, and responsibilities of different stakeholders (e.g., individual, web service provider, and information professionals) for personal digital archiving. This knowledge will help identify focal areas for future personal digital archiving research.

The availability of consumer-level devices for both visualising and interacting with Virtual Reality (VR) environments opens the opportunity to introduce more immersive contents and experiences, even on the web. For reaching a wider audience, developing VR applications in a web environment requires a flexible adaptation to the different input and output devices that are currently available. This paper examines the required support and explores how to develop VR applications based on web technologies that can adapt to different VR devices. We summarize the main engineering challenges and we describe a flexible framework for integrating and exploiting various VR devices for both input and output. Using such framework, we describe how we re-implemented four manipulation techniques from the literature to enable them within the same application, providing details on how we adapted its parts for different input and output devices such as Kinect and Leap Motion. Finally, we briefly examine the usability of the final application using our framework.