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Efficient object based streaming framework for web-based education
An efficient moving object extraction algorithm suitable for real-time content-based multimedia streaming systems is proposed in this paper. A Motion Vector (MV) based object extraction is used to dynamically detect the objects. To utilize the bandwidth efficiently, the important object can be real time detected, encoded, and transmitted with higher quality and higher frame rate than those of background. In order to meet the real-time requirement, no computationally intensive operation is includ
Author(s): Ahmad Ashraf M. A.,El-Seoud Samir A.

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Can You Hear it?
In the previous lesson, students learned about the issue of by-catching by fisheries and how it affects marine habitats. Dolphins are one of the main species affected by by-catching While dolphins can use echolocation to identify the location of many objects, they have difficulty identifying nets, and thus can be caught in them by accident. Students will learn how echolocation works, why certain animals use it to determine the size, shape, and distance of objects, and how humans can potentially
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Model-based Design of Activity Spaces for Collaborative Problem Solving and Learning
It is investigated how the design of external representations, namely, concept maps, can be based on a simulation model, how model-based concept maps can be utilized in an instructional and collaborative problem solving setting and how they can be taken advantage of in a computerized environment for collaborative problem solving and learning. With respect to the first goal, we made use of a cognitive simulation model to develop two instructional units. One unit teaches qualitative aspects of cla
Author(s): Ploetzner Rolf,Hoppe Ulrich,Fehse Eric,Nolte Chris

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Designing and Supporting Collaborative Modelling Activities in the Classroom
Over the last ten years, we have observed an increasing interest of the “computers in education” and other related research communities in supporting not only individual learners but also learning groups. The most prominent scenarios in this line of research and development have certainly been centred around virtual learning groups using computerised communication and cooperation facilities. From a technology point of view, the focus of this work has been on synchronous and asynchronous inform
Author(s): Hoppe Ulrich,Pinkwart Niels,Lingnau Andreas,Hofman

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Integrating Collaborative Concept Mapping Tools with Group Memory and Retrieval Functions
The provision of shared visual representations is considered to be an important facilitator for creative processes in group working and learning scenarios. Although reusability is an inherent feature of computerised representations in general, a comparative analysis of existing tools shows clear deficits in this respect. We are convinced that reusability and thus sustainability of the results of co-constructive group work can be much enhanced by integrating visual environments with functions for
Author(s): Hoppe Ulrich,Gaßner Katrin

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Constructive and Collaborative Learning Environments - What Functions are Left for User Modelling an
With constructive and collaborative learning environments being current trends in tutoring systems, the function of user modelling and intelligent support is not as well-defined as in traditional intelligent tutoring systems. For practical solutions, there tend to remain only some niches for the application of intelligent components. To investigate the practicability of intelligent functions, we have build a framework architecture that allows for the implementation of self-contained constructive
Author(s): Muehlenbrock Martin,Hoppe Ulrich

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Towards a Pattern Language for Intelligent Teaching and Training Systems
Intelligent Tutoring Systems (ITSs) are usually based on similar fundamental structures. In contrast to this, software engineering techniques are seldomly used for realizing ITSs. In the last years, some approaches tried to change this: pattern mining took place; methods covering the specifics of ITS project development have been deployed. These approaches usually focus on a specific system type or on a certain application domain. What is missing is a combination of all the different approaches
Author(s): Harrer Andreas,Martens Alke

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Analysis Methods for Collaborative Models and Activities
A classification of analysis methods for CSCL systems is presented which uses as one dimension the distinction into summary analysis and structural analysis and as another distinction different types of raw data: either user actions or state descriptions. The Cool Modes environment for collaborative modeling enables us to explore the whole spectrum of analysis methods. Action logging is based on the MatchMaker communication server underlying Cool Modes. Example instances for several analysis met
Author(s): Gaßner Katrin,Jansen Marc,Harrer Andreas,Herrmann

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Analysis and Intelligent Support of Learning Communities in Semi-structured Discussion Environments
Conventional discussion environments provide the technical platform for distributed discussion and collaboration, but apart from some statistical data collected, rarely provide information about the collaborative interactions taking place within the environement or even support the discussion by stimulating the learning setting according to the current situation. In this article we present our approach for intelligent support of groups of learners in distributed web-based discussion environments
Author(s): Harrer Andreas

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Multimodality in Online Language Learning Environments : Looking for a methodology
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Author(s): Lamy Marie-Noëlle

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Processing and Transforming Collaborative Learning Protocols for Learner's Reflection and Tutor's Ev
This paper discusses the potential of processing and analysis of collaborative learning protocols, which in the first place are represented as low-level logfiles of actions in collaborative learning environments. These protocols can be abstracted, analysed, and augmented to provide the users with feedback about the collaboration process. We present several techniques we implemented which may be combined to support learner s self-reflection as well as tutors in evaluating the process.
Author(s): Harrer Andreas,Bollen Lars,Hoppe Ulrich

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Facilitating collaborative knowledge construction in computer-mediated learning with structuring too
Collaborative knowledge construction in computer-mediated learning environments puts forward difficulties regarding what tasks learners work on and how learners interact with each other. For instance, learners who collaboratively construct knowledge in computer-mediated learning environments sometimes do not participate actively or engage in off-task talk. Computer-mediated learning environments can be endorsed with sociocognitive structuring tools that structure the contents to be learned and s
Author(s): Weinberger Armin,Reiserer Markus,Ertl Bernhard,Fis

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Keep Spreading the News
In this lesson, students develop an understanding of the critical role communication plays in an engineer's life. Students create products to communicate their learning about the engineering role in the environment.
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Using the Internet to Improve University Education: Problem-oriented Web-based Learning with MUNICS
A principled approach to the design of problem-oriented, web-based learning at the university level is presented. The principles include providing authentic contexts with multimedia, supporting collaborative knowledge construction, making thinking visible with dynamic visualisation, quick access to content resources via ICT, and flexible support by tele-tutoring. These principles are used in the MUNICS learning environment, which is designed to help students of computer science to apply their co
Author(s): Fischer Frank,Troendle Pamela,Mandl Heinz

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Automated Analysis of Students’ Free-text Answers for Computer-Assisted Assessment
We present an approach to Computer-Assisted Assessment of free-text material based on symbolic analysis of student input. The theory that underlies this approach arises from previous work on DidaLect, a tutorial system for reading comprehension in French as a Second Language. The theory enables processing of a free-text segment for assessment to operate without precoded reference material. A study based on a small collection of student answers to several types of questions has justified our appr
Author(s): Hermet Matthieu,Szpakowicz Stan,Duquette Lise

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Using Interaction Analysis to reveal Self-Regulated Learning in Virtual Communities
Aim of this paper is to analyse whether Interaction Analysis can help investigate the practice and development of Self-Regulated Learning (SRL) in Virtual Learning Communities (VLC). Interaction analysis is increasingly used to study learning dynamics within online activities. It proceeds by searching expressions that reveal the aspects under study in the written messages exchanged by the learners. To this end, we devised and classified a number of indicators suggesting the existence of self-re
Author(s): Dettori Giuliana,Persico Donatella

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Learning Bridges: a role for mobile technologies in education
A project called MyArtSpace, funded by the UK Department for Culture Media and Sport, is today exploring how children can engage in similar enquiry-led learning supported by mobile technology and how this can link to school and home learning. Using MyArtSpace as an example, we discuss the possibilities for mobile technology to form bridges between formal and informal learning. We also offer guidelines, drawn from our experience with MyArtSpace, for designing such bridges.
Author(s): Vavoula Giasemi,Sharples Mike,Rudman Paul,Lonsdale

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Optimizing the role of language in Technology-Enhanced Learning
A two-day expert workshop on the role of language in Technology-Enhanced Learning was held at the University of Louvain (Louvain-la-Neuve, Belgium) on October 4th-5th 2007. The workshop’s title was: “Optimizing the role of language in Technology Enhanced Learning”. The primary objective of the IDILL workshop was to bring together academic experts and industrial companies who carry out cutting-edge research in the fields of Natural Language Processing, Applied corpus linguistics, and Computer
Author(s): Granger Sylviane

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Blended Learning Technologies in Lifelong Education: Lessons Learned from a Case Study
The combination of the traditional form of education and e-learning activities (blended learning) constitutes an important possibility for the higher education, so that they reach the flexibility which is considered to be necessary for their adaptation to the trainees’ needs within the frame of socio-cognitive needs created by the information society. We present the principles of the application of blended lesson designs in graduate level and of its evaluation by the students. Based on our expe
Author(s): Liotsios Konstantinos,Demetriadis Stavros,Pomborts

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Bridging the Contextual Distance: The e-CASE Learning Environment for Supporting Students’ Context
Supporting students’ awareness of the complex way that contextual issues affect knowledge application in authentic situations is a critical instructional mission and can lead to improved problem solving in the workplace. In this work we present the design of e-CASE (Context Awareness Supporting Environment), which is a case based learning environment for supporting instruction in the domain of software development. In designing e-CASE we employ a model for context which further guides the use o
Author(s): Demetriadis Stavros,Papadopoulos Pantelis,Tsoukala

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