The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The ability to work effectively in teams is a critical learning outcome for engineering students. It is among the ABET requirements and a skill desired by employers for it is integral to innovation, product development, and to a positive working environment. Many engineering courses provide students with opportunities to develop their team skills through projects, in-class activities, and other assignments...
This paper outlines five concept questions from Statics and Mechanics of Materials from which instructors can easily learn about student thinking when the students select incorrect answers. These questions represent vertical transfer assessment tools and show the potential of using such questions. They can be used as part of a pre-test or in some other manner such as a warm-up exercise. The questions...
This work presents an approach to minimize the problem of information overload in the context of the Command and Control. It proposes a strategy to correlate data from heterogeneous sources, considering a set of attributes that make possible to connect these data. Their correct correlation allows to achieve situational awareness and provide secure subsidies for decision making. For reach this goal,...
The use of an asynchronous video-annotated peer review system (VAPR) presents the opportunity to enhance teaching and diffuse pedagogical practice in higher education. The process involves the video recording of classroom teaching by each faculty member, which is then reviewed and annotated in real-time by faculty peers to identify specific instances of good practices, opportunities for improvement,...
As the availability of open-source information online increases, there are growing concerns regarding its reliability. This has led to renewed emphasis in quality-and trust-metrics research within the social computing space, to assist individuals in determining how reliable pieces of information actually might be. In this article, we take a step back to rigorously investigate the utility of trustworthiness...
Emoticons (e.g., :) and :( ) have been widely used in sentiment analysis and other NLP tasks as features to machine learning algorithms or as entries of sentiment lexicons. In this paper, we argue that while emoticons are strong and common signals of sentiment expression on social media the relationship between emoticons and sentiment polarity are not always clear. Thus, any algorithm that deals with...
Traditional Relation Extraction (RE) trains individual extractors for pre-defined relations. Open Relation Extraction (ORE) can eschew domain-specific training data, tackle an unbounded number of relations, and scale up to massive and heterogeneous corpus such as the web. However, It is difficult to process micro log texts: the genre is noisy, utterances are very short, and texts have little context...
In most model-free tracking algorithms, context of the target is usually taken as source of negative examples for training the appearance model and thus not fully utilized. In fact, the target is embedded in its context, and there are spatial constraints between them with the potential motion correlations and relative locations. This paper presents a part-based model to describe the spatial constraints...
The requirements in terms of reliability and availability have become crucial in the context of many modern information systems. Therefore, fault-tolerance support in these systems becomes pivotal. Among possible techniques used to increase fault-tolerance are checkpointing and message logging. Both, checkpoint and message log, are commonly said to be saved in a stable storage, which is an abstraction...
Sustainability of microgrids depends on a successful business model, enabling technology, and regulation policies. Technical challenges are still significant, but they can be divided and solved in diverse levels with application of existing technology in several ways. However, the regulatory context is vital to incentive microgrids integration into the electricity market. This article aims to explore...
The sliding window protocol (SWP) is a useful protocol in network communications. It can ensure a correct data transfer over unreliable channels where frames may be duplicated, lost, or re-ordered. This paper presents an incremental formal modeling of the SWP using Event-B method. We model the protocol step by step by using refinement, a technique of Event-B. The first step will be the modeling of...
Citation counting is a method to compute impact factor in scientific literature, many authors have criticized this only counting methods because they consider all citation as equal. If a paper's reputation is simply evaluated according to the number of its citations, then incomplete, incorrect or controversial articles may be promoted regardless of their relevance. We developed an annotated corpus...
Readers' continuance use is the basis for the development of mobile reading. This paper conducted an empirical research on mobile readers' continuance intention. The mobile readers are categorized into four groups: information readers, culture readers, recreation readers and research readers. Structural equation modeling is employed to empirically identify the factors that influence the main three...
In this paper some issues related to the Brazilians' regulatory context for microgrids insertion were analyzed. Among various issues, those associated to the fixed minimum billable amount and to the conversion of energy credits generated from net metering in different tariffs were assessed. It is presented a suggested solution for the modification of credit conversion due to generation and consumption...
Situation identification is a complex task that is usually employed in order to sustain the work of Decision Support Systems in several and heterogeneous application scenarios like, for instance, Emergency Management, Safety and Security. Typically, situation awareness systems gather and process raw sensor data by means of different techniques. In this context, it is fundamental to exploit qualitative...
Developing countries are faced with varied challenges that include among others poverty, poor infrastructure, poor infusion and use of Information Technology (IT), poor education facilities and lack of experienced and skilled personnel. Education institutions especially those of higher learning are equally affected by these constraints. Bridging these gaps, education institutions in developing countries...
Video traffic, which represents an increasing fraction of the Internet traffic, requires end-to-end quality of service (QoS) guarantees for inter-domain routing. However, providing such guarantees remains a challenge essentially because it requires a strong and fair cooperation among the different network operators or Autonomous Systems (ASes), crossed by the traffic. Having a single AS on the path...
A code is said to be data-local maximally recoverable if (i) all the information symbols have locality and (ii) any erasure pattern which can be potentially recovered (i.e., the number of equations is equal to the number of unknowns) is recovered by the code. A code is said to be local maximally recoverable if (i) all the symbols of the code have locality and (ii) from the above holds. In this paper,...
For the functioning of American democracy, the Lobbying Disclosure Act (LDA), for the very first time, provides data to empirically research interest groups behaviors and their influence on congressional policymaking. One of the main research challenges is to automatically find the topic(s), by short & sparse text classification, in a large corpus of unorganized, semi-structured, and poorly...
Technology, organisation and people factors influence the success of technology integration. This paper explores recent research findings of integration of Operational Technology (OT) and Information Technology (IT) in organisations with a primary function of managing assets. The main differences between the two technologies are that one is attached to assets and governs real time asset control and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.