Learning to Recommend from Positive Evidence
In recent years, many systems and approaches for recommending
information, products or other objects have been developed. In
these systems, often machine learning methods that need training
input to acquire a user interest profile are used. Such methods
typically need positive and negative evidence of the user's
interests. To obtain both kinds of evidence, many systems make
users rate relevant objects explicitly. Others merely observe the
user's behavior, which fairly obviously yields positive e
Interoperability framework for Assessment Authoring
Current paper presents a research in the area of e-learning interoperability, and more
concrete in assessment area. As first there is reviewed state-of-the-art in
specifications, managed by IMS consortium. Next there are discussed relations
between these specifications and rationale behind assessment specifications evolution.
Next is presented Assessment Interoperability Bus (AIB), as a skeleton for further
facilitation of presentation in assessments interoperability. As result there are present
A note on organizational learning and knowledge sharing in the context of communities of practice
The knowledge management (KM) literature emphasizes the impact of human factors forsuccessful implementation of KM within the organization. Isolated initiatives for promoting learning organization and team collaboration, without taking consideration of the knowledge sharing limitations and constraints can defeat further development of KM culture. As an effective instrument for knowledge sharing, communities of practice (CoP) are appearing to overcome these constraints and to foster human collabo
Designer integration in training cycles : IEEE LTSA model adaptation
This paper describes an architecture centered on a component model for the course cycle. This
model guides a re-engineering process based on the observed use scenarii. It is applied in an
institutional framework and uses learning devices provided by the open source community. The
architecture integrates the latest works on learning technology standards.
Adaptive learning scenarios for detection of misconceptions about electricity and remediation
Our main objective is to model the knowledge used by learners in order to solve problems about electricity. We are searching means to do a diagnosis about student's activity based on a microworld of electric circuits. Once the diagnosis realized, we try to provide the learner with the most relevant remediation with regard to his/her misconceptions.
Clustering Students to help Evaluate Learning
In this paper we show how clustering techniques can be applied to
student answers generated from a web-based tutoring tool. In particular we
are interested in extracting clusters of students based on the mistakes
they made using the tool, with the aim of obtaining pedagogically
relevant information and providing this feedback to the teacher. The data we used comes from the Logic-ITA, a web-based tutoring tool to practice formal proofs currently in use in the School of Information Technologies at
Academic Use of Digital Resources: Disciplinary Differences and the Issue of Progression
This paper examines the use of digital resources by academics in UK Higher education. The explosive growth of the Internet and in particular the Web has led to a growth in speculation about networked and e-learning (Steeples and Jones 2003, Brown and Duguid 2000). Increasingly researchers have become aware of the ways the university resists such changes and provides a 'resourceful constraint' to the changes surrounding the introduction of networked learning (Brown and Duguid 2000, Cornford 2002)
On-line Learning Networks: Frameworks and Scenarios
Progressively the idea of using the internet as a platform to mediate social interactions and learning at different levels has
affirmed itself, and this has given rise to a huge number of spontaneous and planned collectives, which are often described
as on-line learning networks. On-line learning networks create value from a combination of content and people
knowledge. They can vary widely in the strength and permanence of their connections and resources necessary to maintain
them. Aspects both
Instructional Engineering for Learning Objects Repository Networks
Knowledge management in organizations, the learning objects paradigm and the advent of a new Web generation, the "Semantic Web", are major actual trends that reveal a new potential for a renewed distance learning pedagogy, but at a certain number of conditions. The first and foremost is the use of education modeling languages and instructional engineering methods to help decide how to assemble learning objects in meaningful learning and knowledge management environment. This article proposes a s
Teaching proof in a dynamic geometry environment: what mediation?
This paper aims to discuss two issues. First we intend to analyse if and how dynamic geometry software prove to be a communication space for students and how they support students towards proving. Second, we reflect about the use of video-tapes as source of information both for Mathematics Education research and for the teaching practice. In particular we approach the question: how do video-tapes help in the construction of a shared experience in the classroom?
Asynchronous Discussion in Support of Medical Education
Although the potential of asynchronous discussion to support learning is widely recognized, student engagement remains problematic. Often, for example, students simply refuse to participate. Consequently the rich promise of asynchronous learning networks for supporting students' learning can prove hard to achieve. After reviewing strategies for encouraging student participation in discussions in Asynchronous Learning Networks (ALN), we present a study that investigates how these strategies influ
OCTOPUS: A Technological Model for Online Resource Centre in Environmental Education
The communication focuses on the implementation of an innovative model for creation of online resources and e-learning activities on a web platform dedicated to environmental education. All activities take place in the frame of Minerva project OCTOPUS: "Transnational on-line resource centre". The resource centre implements a mechanism of multilevel knowledge development and information retrieval system using modern electronic tools. This model is dynamic by its technological structure and also f
Middle School Portal: Math and Science Pathways (MSP2)
New from The Biology Project of the University of Arizona, this online tutorial introduces the dynamic complexes of proteins, carbohydrates, and lipids that comprise cell membranes, and relates how membranes are important for regulating ion and molecular traffic flow between cells. Each section of this Web site takes the form of a multiple choice question. Answer the question correctly, and a brief explanation of each answer choice will be displayed. Answer the question incorrectly, and a short
Racial Differences in 30-Day Mortality for Pulmonary Embolism
Objectives. Previous studies reported a higher incidence of in-hospital mortality for Black patients who had pulmonary embolism than for White patients. We used a large statewide database to compare 30-day mortality (defined as death within 30 days from the date of latest hospital admission) for Black and White patients who were hospitalized because of pulmonary embolism.
Methods. The study cohort consisted of 15531 discharged patients who had been treated for pulmonary embolism at 186 Pennsylv
Drawing Dinos
This OLogy activity shows kids how paleo-artists are able to transform dinosaur bones into dynamic drawings. After walking them through the five-step process outlined below, the activity challenges kids to create their own drawings from dinosaur skeletons|Step 1: Start with the bones. Step 2: Give those bones a body. Step 3: Shadow time!Step 4: Scaly skin and maybe feathers. Step 5: There's no place like home.
Church and State, Maryland Legislature Floor Remarks, Jewish Record Transcript (Box 4, Folder 7) und
Box 4, Folder 7 contains a transcript of the Legislative Floor Remarks of Maryland concerning the separation of church and state.,The digitization of the Board of Delegates of American Israelites records at the Center for Jewish History was supported in part by funds from the Metropolitan New York Library Council (METRO) through the New York State Regional Bibliographic Databases Program.,Box 4, Folder 7 contains a transcript of the Legislative Floor Remarks of Maryland concerning the separation
Cnoidal and sinusodail wave reflection from a laboratory sand beach
This study focuses on the evolution of accretional beach profiles under cnoidal and sinusoidal waves and on the reflection of those waves from the sand beach. The SUPERTANK test, STi0, conducted at Oregon State University in 1991 was reproduced at three different scales, 1:10, 1:8.5 and 1:11. Two tests were run at each scale by using sinusoidal and cnoidal waves. The results are compared and differences discussed for: energy spectra, reflection coefficients, phase angles between incident and ref
Capturing design context in distributed communication of software engineers
Software engineering is a knowledge-intensive activity. It requires developers be aware of changing requirements, involvement of others, and the overall status of the project. Code, as the embodiment of developersâ intent, does not represent all knowledge required to work on the project successfully. Even in projects with the best software process practices, where requirement and design documents, bug databases, and source control software are kept up-to-date, most knowledge is still containe
David McNally: "Beyond the Market: Radical Alternatives to Market Socialism" DAVID MCNALLY is Professor of Political Science at York University,
Toronto. He is the author of five previous books: Political Economy and
the Rise of Capitalism (1988); Against the Market: Political Economy
Market Socialism and the Marxist Critique (1993); Bodies of Meaning:
Studies on Language, Labor and Liberation (2001); Another World is
Possible: Globalization and Anti-Capitalism (2002; second revised
edition 2006); and Monsters of the Market: Zombies
Samuel Farber: "Cuba Today: Current Trends and Future Developments" SAMUEL FARBER was born and raised in Cuba and received his Ph.D. in
Sociology from the University of California, Berkeley in 1969. He has
written numerous books and articles on Cuba including Revolution and
Reaction in Cuba, 1933-1960, and most recently, The Origins of the
Cuban Revolution Reconsidered published by the University of North
Carolina Press in 2006. He is currently working on a book on Cuba since
the 1959 Revolution for Haymarket Press. He is a
