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This study focuses on deploying an evaluation system for lecturer to provide assessment document question sets such as final examination paper which is based on the outcome-based-education (OBE) approach. Using the OBE approach, student’s level of understanding, skill and cognition is set to align with learning outcomes (LO) and program outcomes (PO). However, in preparing the assessment as such the...
The flows of traffic dumps of high-speed Internet backbone channel were analyzed. Streams were classified into three groups according to the amount of transmitted information. Density function was calculated for the number of packets transmitted by different classes of flows (time series) according to the method of image sources and the Rosenblatt-Parzen approximation. The obtained results show non-stationarity...
In this article, we discuss user-centric networks as a way of, if not completely solving, considerably mitigating the problem of sharing limited network capacity and resources efficiently and fairly. UCNs are self-organizing networks where the end user plays an active role in delivering networking functions such as providing Internet access to other users. We propose to leverage the recently proposed...
Development of automated work regime, internal intranet network and web-site provides efficiency in the parliament activity. However, these technologies applied in the parliament activity can not realize electronic democracy principles entirely. If taking into account these principles - direct participation of citizens in the process of law making, requirements and proposals, etc. the importance of...
During recent years, the Internet has witnessed a rapid growth in deployment of data-driven (or swarming based) peer-to-peer (P2P) media streaming. In these applications, each node independently selects some other nodes as its neighbors (i.e., gossip style overlay construction) and exchanges streaming data with the neighbors (i.e., data scheduling). To improve the performance of such protocol, many...
The quality of software is considered a major characteristic competitive among organizations. The mains objective of this study is to raise attributes of quality for software as a service and to identify its impacts ahead of this new paradigm of software, SaaS (Software as a Service). The attributes were proposed by aggregating and matching criteria related for quality of product software, with tools...
Load balancing traffic of a multihomed stub network among its various egress links can significantly improve performance by allowing the network to route its traffic around congested paths. In, several centralized route control schemes to load balance traffic were proposed. It was shown that employing these route control schemes resulted in significant improvement in round-trip times. We carry this...
We consider traffic models for the evaluation of buffer-constrained routers, such as routers with all-optical data paths. We show that conventional models may substantially underestimate the packet loss behavior. We propose an alternative method based on the multi-fractal wavelet model (MWM). Using this new model, we show that routers are susceptible to high losses under bursty Internet traffic conditions...
Equipped with recent advances in electronics and communication, wireless sensor networks gained a rapid development to provide reliable information with higher Quality of Service (QoS) at lower costs. This paper presents a realtime tracking system developed as a part of the ISSNIP BigNet Testbed project. Here a GPS receiver was used to acquire position information of mobile nodes and GSM technology...
With the exponential growth of computers inhabiting the earth with many millions of miles of optical fiber, wire and air waves, link people, their computers and the vast array of information handling devices together, we can say that we are living in cyber era. Our society is truly an information society, our time an information age. The question arises is whether the kind of society being created...
This paper presents remote experiments, currently available in the Industrial Electronics course, at Faculty of Engineering of Porto University (FEUP), its pedagogical effectiveness assessment and obtained results. The remote experiments aim Students to extend current work at the lab and were implemented as part of the National Portuguese Project: POCI 2010 Labs on The Web. The paper shows the technology...
The concept of decision making is an important issue that has been recognized in requirements prioritization because most projects are constrained by budget and time; therefore it is often difficult to implement all requirements that have been elicited for a system. For prioritization purposes, many approaches have been proposed so far to help the process but still it is not possible to get a real...
The paper provides a study of situation awareness mechanisms in modern telecommunication networks on the essential basis of the actual Self-NET research Project effort. Since cognition has today become one of the key features of most systems, novel mechanisms for identification, comprehension and corresponding reaction to altering environmental conditions are continuously being developed. The necessity...
Java virtual machines do not provide communication services other than those offered by the underlying operating system (OS). Java sockets are just wrappers for the ones provided by the OS. In this work, we present how we replaced standard OS wrappers with a Java native implementation of most part of the IPv6 protocol stack, building an operational IPv6 implementation. The modified Java virtual machine...
ECG is an important biomedical parameter and is used clinically in diagnosing various diseases and conditions associated with the heart. The acquisition of an real time ECG signal requires an expensive CARDIART machine and experienced doctors who can interpret the output signal. However in developing and underdeveloped nations due to scarcity of resources and manpower, especially in rural areas, common...
As the ease of the information through the Internet increases, distance learning of many courses can now be made through Web. Many good web sites programmed from various educational institutions are now available for their students to download lecture notes, study Web-based material and attend Web-lectures. Some of them even have Web-based video lectures or seminars. However, there still exist problems...
The report discusses a method for estimating the real work of 3G technology in the context of urban megalopolis. Getting information about the parameters of the network (in this case, the speed of information transfer) is necessary to assess the level of network development and identify further steps to streamline and improve its quality of services.
We discuss a ldquoself-managementrdquo concept, suitable for the description of autonomic spectrum reallocation operations through dynamic resource allocation and control processes, for an effective realization of the Future Internet (FI) vision. We introduce a specific targeted methodology, in the form of the Generic Cognitive Cycle Model, including three distinct and separate processes (i.e. Monitoring,...
Over the years, JavaTM has become a popular language for standalone as well as Web based applications. Portability and security are the major reasons for JavaTM success and increased level of adoption in various application domains. When evaluating security, Forensics is another area with continuous increasing interest. With research progress of the previous years efficient tools for reconstructing...
The PageRank algorithm, proposed by [Page et al., 1998] is used in the Google search engine to improve the results of requests by taking into account the link structure of the Web. PageRank give the same weight to all pages that is the surfer model is proposed using a uniform distribution. Richardson and Domingoshave proposed a more interesting and intelligent surfer model combining the link and content...
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