Data compression is the art of using encoding techniques to represent data symbols using less storage space compared to the original data representation. The encoding process builds a relationship between the entropy of the data and the certainty of the system. The theoretical limits of this relationship are defined by the theory of entropy in…

IT leaders today must not only provide but also decide: which tools and services should they continue to supply, which are better delivered by others, and perhaps most critically, which methods from among the bewildering array of alternative sourcing strategies will best serve their faculty, staff, and students. In 2009, the EDUCAUSE Center for…

This report reflects a multi-year collaborative effort between the New Media Consortium (NMC) and the eLearn Center of the Universitat Oberta de Catalunya to help inform Iberoamerican educational leaders about significant developments in technologies supporting teaching, learning, and research in tertiary education. The report was produced to…

In demand paging virtual memory systems, the page fault rate of a process varies with the number of memory frames allocated to the process. When an increase in the number of allocated frames leads to an increase in the number of page faults, Belady's anomaly is said to occur. In this paper, we present a probability model for Belady's anomaly. We…

Elearning has grown rapidly in importance for institutions and has been largely facilitated through the "walled garden" of the virtual learning environment. Meanwhile many students are creating their own personal learning environments by combining the various Web 2.0 services they find most useful. Cloud computing offers new…

Drawing upon the concept of governance, this dissertation refers to the two most commonly employed mechanisms that ensure high quality knowledge in electronic repositories as expert-governance and community-governance. In three related but distinct essays, the dissertation examines the governance concept, and investigates contributing knowledge to…

There was a time when school districts showed little interest in storing or backing up their data to remote servers. Nothing seemed less secure than handing off data to someone else. But in the last few years the buzz around cloud storage has grown louder, and the idea that data backup could be provided as a service has begun to gain traction in…

This study contributes knowledge about how a digital badge system integrated into an online, subject-matter-specific, and competency-based professional development (PD) program affected teachers' experiences with and perceptions of the program activities. The report presents findings from a one-year exploratory study of an online PD program, and…

The rise of technology within educational settings has allowed for a substantial shift in the way in which educators teach learners of all ages. In order to implement these new learning tools, school administrators and teachers alike must seek new research outlining the latest innovations in the field. "Educational Technology Use and Design…

Your learning curriculum needs a new technological platform, but you don't have the expertise or IT equipment to pull it off in-house. The answer is a learning system that exists online, "in the cloud," where learners can access it anywhere, anytime. For trainers, cloud-based coursework often means greater ease of instruction resulting in greater…

One of the most explosive areas of growth in the field of higher education is currently in emerging international markets. In developing nations, lack of access to high-quality teachers and educational materials is often the key obstacle preventing students from gaining the skills and knowledge they need to pursue new opportunities and advance in…

In this article, the author contends that in 10 years, federated search--or search of any kind for that matter--won't exist. He elaborates that the "function" of search will exist--but not in a context with which anyone is familiar today. So if "search" doesn't exist in 2018, how will people find the information that they need across vast volumes…

This article introduces a promising new methodology called optical imaging. Optical imaging is used for measuring changes in cortical blood flow due to functional activation. The article outlines the pros and cons of using optical imaging for studying the brain correlates of perceptual, cognitive, and language development in infants and young…

It has been suggested that traditional assessment practices in tertiary institutions tend not to equip students well for the processes of effective learning in a learning society [1]. This paper reviews alternative Internet based assessment practices used in Library, Business and Education courses at the University of Ballarat, Victoria, Australia…

In this case study the authors describe Pepperdine University Libraries' migration to OCLC's WorldShare Management Services. They elaborate on the rationale for the decision, review some of the challenges and lessons encountered along the way, and briefly discuss some effects of the new system on our libraries. The focus is on technical services…