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With the increasing popularity of multimedia-rich web portals, reducing latency has become more and more important. The current median web page load time is in the order of seconds, while research has shown that user waiting times must remain below two seconds to achieve optimal acceptance. In this paper, we analyzed a large dataset obtained from a major Belgian news provider, focusing on content...
Crowdsourced testing is gaining a lot of attention these days. Crowdsourced testing utilizes testers which subscribe to an external or internal crowdsourcing platform. Usually these testers are distributed across geographies. Thus, such testing can be treated as a form of distributed testing. Crowdsourced testing, quite often, is used to perform exploratory testing in which testers test the features...
Assigning programming homework for programming courses is a significant learning activity used to improve students' programming ability. However, it is more challenging for instructors and TAs to assess the contents of programs written by students. For instance, they do not know the histories of program writings; they have to review source code manually; and even they cannot obtain statistic information...
IT service providers differentiate themselves through offering after-sales support for hardware and software products. Thus, businesses, including large corporations, have intricate work-flows for servicing such support requests while reducing man-hours needed. These work-flows generally operate through a ticketing system for resolving customer issues. A lot of man-hours are spent in searching old...
In this paper, we have explored the extent to which faculty use different web sources of scientific papers, as well as their practices and attitudes related to availability and use of scientific papers. The questionnaire was sent to employees of the Faculty of Humanities and Social Sciences and the Faculty of Science at University of Zagreb. It was found out that majority of respondents use scientific...
The ability for IBM researchers and development teams to take an idea or business opportunity and quickly solution it by requesting resources from a self-service cloud portal or an application-programming interface, API, has drastically changed how IBM Research procures information technology resources. In this poster, we'll present a brief history, the current IBM Research Hybrid cloud and our analysis...
The analysis of in-memory technology implementation features for big data sets on hi-tech enterprises based on SAP HANA technologies as a data storage is provided in article. With use of a column-store method of SAP HANA data storage technologies, the high speed of information read and the efficiency of use of data compression mechanisms can be achieved. The compressed data usage allows to cheapen...
The recent upsurge of Apps, APIs and Cloud platforms, combined with the perpetual need of shorter time to market, motivates the need for approaches for rapid software engineering to compose applications quickly. In this paper, we propose a portal based approach to intelligently assist in creating composite applications. We discuss the underlying concepts and the techniques proposed in our approach,...
This work addresses the problem of cold and warm start arising in recommender systems. Usually a latent factor model based on matrix factorization is used for collaborative filtering (warm start recommender system). Only in recent times, a handful of papers have been published that uses autoencoders for the same task; these studies have shown to yield better results than matrix factorization. This...
In this paper, we present a double hand-gesture interaction (DHGI) method for walk-through in VR environment with an Oculus Rift headset and Leap Motion function. The user can control the avatar (first-person view) to move (walk/run) forward or backward by turning the user's left palm upward or downward, and by turning the avatar to the left or right with the right thumb pointing toward either direction...
In a large-scale network, the user authentication process is a high workload and has some security problems. In this study we propose a mechanism for each user that wants to be included in our enterprise network and authenticate oneself without needing to consult with any network administrator. We also propose to fix that user's binding location. So using this information we ensure security and determine...
In this study, different phases of T1-weighted, dynamic contrast-enhanced liver magnetic resonance (MR) images were combined with wavelet-based image fusion to support decisions of radiologists. Used images has labelled as 6 different focal lesion types which focal nodular hyperplasia (FNH), hemangioma, cyst, colangiocellular carcinoma (CCC), hepatocellular carcinoma (HCC) and liver metastases. In...
Modern component-based distributed software systems are increasingly required to offer non-stop service and thus their updates must be carried out at runtime. Different authors have already proposed solutions for the safe management of dynamic updates. Our contribution aims at improving their efficiency without compromising safety. We propose a new criterion, called version consistency, which defines...
In today's high paced world where time management stands next to God, it becomes very essential to manage all our roles as well as goals, in order to complete the given task on time. The inability of an individual to do so might lead to serious consequences. At times one might feel extreme pressure and cannot stop worrying about tomorrow's job and pending deadlines. Along with this one has to also...
Now-a-days, World Wide Web is growing as a huge repository with high source of voluminous and heterogeneous information which continues to expand in size and complexity. But still Web pages are observed unstructured, semi-structured or asynchronous, which contains excess irrelevant information like advertisement, sponsored links, headers, footers etc. Hence guiding on to fetch particular documents...
Satellite remote sensing technology can extract disaster information rapidly and accurately for disaster monitoring on a regional or national basis. However, various sensors are generating huge volumes of remote sensing data for disaster management. It is urgent to handle such massive remote sensing images. In this paper, it provides the solutions for massive remote sensing data analysis and rapid...
The aim of this paper is to present a heuristic study about the level of usability of 24 universities Web portals using data mining techniques. For experimenting in this work, we used a System for Evaluation of Usability of Web sites (SIRIUS) which contains a tool to generate usability valuations of Web sites called Prometheus and integrates 10 heuristics to do the process. The assessments collected...
For the deep uncertainty and large data characteristics of the retail supply chain unconventional emergency, the architecture and design issues of early warning decision-making management system for retail supply chain unconventional emergency were researched based on MAS and cloud computing technology. According to the design principles of early warning decision-making management system, the business...
This article describes a study on the quality evaluation of governmental websites of 20 countries with the highest level of competitiveness. The accessibility assessment was carried out to verify compliance with the Web Content Accessibility Guidelines 2.0 (WCAG 2.0) published by the World Wide Web Consortium (W3C). The main goal of this study is to determine whether people with disabilities are able...
Andean countries are experiencing stages of transformation product of series of strategies for improving public service through e-government concept. This work analyze how e-government is developed in these countries from 2008 to 2013 taking into account the factor of measurement used by the E-Government Development Index (EGDI). The findings show that the strategies adopted by Colombia have significantly...
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