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Collaborative e-Science applications often need to manage large numbers of user identities, profiles, and groups. However, developing and maintaining such capabilities is often challenging given the plethora of security protocols available and requirements for scalable, robust, and highly available implementations. Globus Nexus is a professionally hosted Platform-as-a-Service that provides these capabilities...
Local Binary Pattern (LBP) is a simple yet powerful method for image feature extraction in pattern recognition and image processing. However, the LBP operator of each pixel mainly depends on its neighboring pixels and emphasizes on local information too much. From the practical viewpoint, the information is quite limited if we consider the LBP operator in isolation, especially for a large image. To...
This paper proposes a software development and configuration framework based on JavaEE in web information systems domain, it details the architecture of framework and gives the configuration steps and invoking workflow, the framework has been used to some applications, the practice proved that it can reduce the development workload and enhance the software quality.
Sketching and doodling are two techniques commonly used by choreographers to design a dance sequence. These sketches usually represent the trajectory of the dancer in the scene. A set of annotations can be used to differentiate the various dance movements. In order to have more control over the choreographed dance, a 3D animation is preferable. This paper presents a novel sketch-based approach to...
Papyrologists analyze, transcribe, and edit papyrus fragments in order to enrich modern lives by better understanding the linguistics, culture, and literature of the ancient world. One of their common tasks is to match an unknown fragment to a known manuscript. This is especially challenging when the fragments are damaged and contain only limited information (e.g., due to deterioration). In the last...
Biometric measurements are now often routinely adopted as a robust means of determining individual identity. Such an approach is clearly beneficial in a variety of scenarios, including those relating to medical environments. In the medical context, however, the use of biometric data can potentially offer other valuable opportunities for harnessing the power of biometrics which have a more direct bearing...
In this paper, we present a semi-automatic news video annotation tool. The tool and its algorithms are dedicated to artificial Arabic text embedded in video news in the form of static text as well as scrolling one. It is performed at two different levels. Including specificities of Arabic script, the tool manages a global level which concerns the entire video and a local level which concerns any specific...
We are conducting a longitudinal, multi-institutional, and multivariate study of the trajectories of students in specific engineering disciplines in the U.S.A. to an extent never before possible. Focusing on the eleven partner institutions of the Multiple-Institution Database for Investigating Engineering Longitudinal Development (MIDFIELD), we examine trajectories of engineering students in five...
Effective teaching of teamwork skills in local and globally distributed Software Engineering (SE) teams is recognized as an important part of the education of current and future software engineers. Effective methods for assessment and early prediction of learning effectiveness in SE teamwork are not only a critical part of teaching but also of value in industrial training and project management. This...
This study uses longitudinal data from eleven public, research universities in the U.S. to compare grades in required courses, graduation rates, and final cumulative grade point average of traditional (TRS) and nontraditional (NTS) students who ever declared engineering as a major. There have been national calls for increasing the numbers of science, technology, engineering, and mathematics (STEM)...
Management of ship designing is difficult because of the complexity in modeling of the process and large amounts of data throughout the process. Though existing technologies of BPMN can solve the first problem, BPMN does not provide sufficient supports on dealing with complex dependencies in the process, e.g., storage and search problems of correlated data with “many to many” relations. In this paper,...
Corporate software development often takes place within a complex organizational structure, potentially encompassing many individuals. With constant improvements in network and communication technologies, those organizations may be widely distributed through time and space. In computer science and education, group projects are typically included as part of an undergraduate and graduate engineering...
Educational data mining is emerging for useful knowledge hidden in educational databases. Frequent temporal pattern mining is one of the popular mining tasks to help us get insights into the characteristics of the students and further of their study. As time goes, educational databases in an academic credit system keep increasing and updated in nature. Thus, frequent temporal pattern mining in educational...
This paper presents two primary results: (1) an adaptation of a Scrum-based, software-tools enabled process used in international service-learning project courses in the Computer and Information Sciences and other disciplines and (2) the software applications resulting from this process. The paper begins with an overview of Scrum and the challenges of applying it in the classroom. We survey the literature...
GPS performs considerably well in the outdoor LoS conditions. However, its performance rapidly deteriorates when it is used in non-LoS indoor environments. This paper analyzes the performance of Wi-Fi based positioning in the outdoor environments. Our tests reveal that scene analysis can achieve high accuracies even in the outdoor setups. All observations reported in this work are based on experimental...
Active learning refers to instruction where the learners play an active role in learning and has been found to increase student retention, improve acquisition of higher order thinking and reasoning skills, and improve performance in STEM courses. Two main active learning techniques: student response systems (aka. clickers) and flipped classroom assignments, were incorporated in University of Michigan-Flint...
In an effort to generate and retain student interest in STEM fields, this work focused on providing middle school teachers with resources to engage students using hands-on activities and demonstrations directly related to the state science standards. The project involved generating a library of content for 8th grade physical science standards. The demonstrations and activities were specifically selected...
Difficulties on Internet access due to low quality or unstable connections, have became a main obstacle to LMS use in remote places, especially in geographical challenged regions as is the case of the Amazon. In this paper we present a scheme for overcoming these problems that is based on: (i) the use of a local server that (a) bypasses all tasks among users and the main server when in normal access...
This paper presents a method for reconstructing missing audio segments based on sparse representation with power spectrogram. In the proposed method, an error of power spectrograms is utilized as a quality measure representing reconstruction performance. Then the proposed method estimates missing segments based on sparse representation optimized with respect to the error of power spectrograms. This...
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