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32,033
Tutoring and Validation in the Virtual Campus Environment
- Proceedings of International Workshop on Interactive Computer-Aided Learning (ICL
, 2003
"... Virtual Campus 1 is a research project which aims to provide a comprehensive and innovative e-learning environment for authoring, fruition and evaluation. The paper presents the Tutoring and Validation module developed for Virtual Campus. The Validation tool tracks the learners ’ behaviour within th ..."
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Cited by 1 (0 self)
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Virtual Campus 1 is a research project which aims to provide a comprehensive and innovative e-learning environment for authoring, fruition and evaluation. The paper presents the Tutoring and Validation module developed for Virtual Campus. The Validation tool tracks the learners ’ behaviour within
1 An Executable Model for Virtual Campus Environments
"... Abstract. In this chapter, we revisit an innovative model of a Virtual Campus developed and implemented in the second half of the nineties and we compare it with the main evolution in the field of eLearning that has occurred in the last decade. We present the vision and the orientation principles fo ..."
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Abstract. In this chapter, we revisit an innovative model of a Virtual Campus developed and implemented in the second half of the nineties and we compare it with the main evolution in the field of eLearning that has occurred in the last decade. We present the vision and the orientation principles
Integrating Automatic Task Scheduling and Web-based Agenda in a Virtual Campus Environment
"... This article describes an activity and time management tool that allows any member of a virtual learning environment to have their timetables and activities planned or scheduled in such a way, that deadlines and personal preference criteria are both met. First of all, a general overview of the day-t ..."
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This article describes an activity and time management tool that allows any member of a virtual learning environment to have their timetables and activities planned or scheduled in such a way, that deadlines and personal preference criteria are both met. First of all, a general overview of the day
Live Migration of Virtual Machines
- In Proceedings of the 2nd ACM/USENIX Symposium on Networked Systems Design and Implementation (NSDI
, 2005
"... Migrating operating system instances across distinct physical hosts is a useful tool for administrators of data centers and clusters: It allows a clean separation between hardware and software, and facilitates fault management, load balancing, and low-level system maintenance. By carrying out the ma ..."
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Cited by 636 (15 self)
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a practical tool even for servers running interactive loads. In this paper we consider the design options for migrating OSes running services with liveness constraints, focusing on data center and cluster environments. We introduce and analyze the concept of writable working set, and present
Quicktime VR - an image-based approach to virtual environment navigation.
- In SIGGRAPH 95 Conference Proceedings,
, 1995
"... ABSTRACT Traditionally, virtual reality systems use 3D computer graphics to model and render virtual environments in real-time. This approach usually requires laborious modeling and expensive special purpose rendering hardware. The rendering quality and scene complexity are often limited because of ..."
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Cited by 527 (0 self)
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ABSTRACT Traditionally, virtual reality systems use 3D computer graphics to model and render virtual environments in real-time. This approach usually requires laborious modeling and expensive special purpose rendering hardware. The rendering quality and scene complexity are often limited because
Defining Virtual Reality: Dimensions Determining Telepresence
- JOURNAL OF COMMUNICATION
, 1992
"... Virtual reality (VR) is typically defined in terms of technological hardware. This paper attempts to cast a new, variable-based definition of virtual reality that can be used to classify virtual reality in relation to other media. The defintion of virtual reality is based on concepts of "presen ..."
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Cited by 557 (0 self)
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Virtual reality (VR) is typically defined in terms of technological hardware. This paper attempts to cast a new, variable-based definition of virtual reality that can be used to classify virtual reality in relation to other media. The defintion of virtual reality is based on concepts of "
Maté: A Tiny Virtual Machine for Sensor Networks
, 2002
"... Composed of tens of thousands of tiny devices with very limited resources ("motes"), sensor networks are subject to novel systems problems and constraints. The large number of motes in a sensor network means that there will often be some failing nodes; networks must be easy to repopu-late. ..."
Abstract
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Cited by 510 (21 self)
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-late. Often there is no feasible method to recharge motes, so energy is a precious resource. Once deployed, a network must be reprogrammable although physically unreachable, and this reprogramming can be a significant energy cost. We present Maté, a tiny communication-centric virtual machine designed
Surround-screen projection-based virtual reality: The design and implementation of the CAVE
, 1993
"... Abstract Several common systems satisfy some but not all of the VR This paper describes the CAVE (CAVE Automatic Virtual Environment) virtual reality/scientific visualization system in detail and demonstrates that projection technology applied to virtual-reality goals achieves a system that matches ..."
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Cited by 725 (27 self)
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Abstract Several common systems satisfy some but not all of the VR This paper describes the CAVE (CAVE Automatic Virtual Environment) virtual reality/scientific visualization system in detail and demonstrates that projection technology applied to virtual-reality goals achieves a system that matches
An Integrated Experimental Environment for Distributed Systems and Networks
- In Proc. of the Fifth Symposium on Operating Systems Design and Implementation
, 2002
"... Three experimental environments traditionally support network and distributed systems research: network emulators, network simulators, and live networks. The continued use of multiple approaches highlights both the value and inadequacy of each. Netbed, a descendant of Emulab, provides an experimenta ..."
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Cited by 688 (41 self)
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Three experimental environments traditionally support network and distributed systems research: network emulators, network simulators, and live networks. The continued use of multiple approaches highlights both the value and inadequacy of each. Netbed, a descendant of Emulab, provides
PVM: A Framework for Parallel Distributed Computing
- Concurrency: Practice and Experience
, 1990
"... The PVM system is a programming environment for the development and execution of large concurrent or parallel applications that consist of many interacting, but relatively independent, components. It is intended to operate on a collection of heterogeneous computing elements interconnected by one or ..."
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Cited by 788 (27 self)
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of various types of algorithms (and their interactions), while the underlying infrastructure permits the execution of applications on a virtual computing environment that supports multiple parallel computation models. PVM contains facilities for concurrent, sequential, or conditional execution of application
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