Introduction. This paper reports an exploratory study examining how users participate in social tagging activities in a scholarly digital library environment to learn about their motivations, behaviour, and practices. Method. This study was conducted in two phases: a survey to investigate usage and attitudes of social tagging tool, and a task-based user study on tagging practices in Theses@UMal...

The Web is the most pervasive collaborative technology in widespread use today; however, access to the web and its many applications cannot be taken for granted. Web accessibility encompasses a variety of concerns ranging from societal, political, and economic to individual, physical, and intellectual through to the purely technical. Thus, there are many perspectives from which web accessibilit...

Brushwork and ink dispersion make it difficult to render 3D common objects in the style of sumi-e painting. We use sphere mapping with brush texture and an image processing techniques to simulate brushstrokes and ink dispersion. The whole process is implemented in shaders running on Graphics Process Unit (GPU) that allows fast and highquality rendering 3D polygonal models in the style of sumi-e...

* Enterprise Application Integration † Co-financed by FONACIT through the S1-2001000792 Abstract Software integration has been a solution to the problem of connecting dissimilar systems for many years. This integration is still a challenging issue. EAI (Enterprise Application Integration) is defined as the process of integrating enterprise systems with existing applications. Since software inte...

The determination of the maximal ranks of a set of a given type of tensors is a basic problem both in theory and application. In statistical applications, the maximal rank is related to the number of necessary parameters to be built in a tensor model. JaJa [JA] and Sumi et. al [SMS1] developed an optimal bound theory based on Kronecker canonical form of the pencil of two matrices. Theory of mat...

by Dominik Buszko iii ACKNOWLEDGMENTS I would like to express my sincere gratitude to my advisor, Dr. Abdelsalam (Sumi) Helal, for providing me with an opportunity to work in this exciting area and for providing feedback, guidance, support, and encouragement during the course of this project and my graduate academic career. I would like to take this opportunity to thank my family and my girlfri...

Mobile learning offers several advantages over other forms of learning like ubiquity and idle time utilization. However for these advantages to be properly addressed there should be a check on the system quality. Poor quality systems will invalidate these benefits. Quality estimation in M-learning systems can be broadly classified into two categories: software system quality and learning charac...

We present in this paper a framework embracing different aspects involved in COTS component selection that influence the success of this activity. Playing a crucial role in this framework appears the concept of quality model, aimed at structuring the description of the quality of COTS components. We propose a methodology for building quality models based on the ISO/IEC 9126-1 standard which all...

ISO 9126 promotes a three-level model of quality (factors, criteria, and metrics) which allows one to assess quality at the top level of factors and criteria. However, it is difficult to use this model as a tool to increase software quality. In the Squale model, we add practices as an intermediate level between metrics and criteria. Practices abstract away from raw information (metrics, tool re...