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Synchronous Collaboration with Virtual and Remote Labs in Moodle

IFAC Proceedings Volumes 2012年第11期45卷 270-275页

作者： Carlos A. Jara Ruben Heradio Luis de la Torre Jose Sanchez Sebastian Dormido Fernando Torres Francisco A. Candelas Physics Systems Engineering and Signal Theory Department University of Alicante Spain Software Engineering and Computer Systems Department Spanish Open University Madrid Spain Computer Science and Automatic Department Spanish Open University Madrid Spain

This work presents the tools and procedure developed by the authors to create synchronous collaborative virtual and remote laboratories within a web course produced with a learning management system. Thanks to them, an instructor can prepare virtual and/or remote laboratories and easily add them to its online web course, automatically obtaining collaborative features. Also, any member (either a student or a teacher), as long as s/he is enrolled in the course, can use the system to invite other enrolled users to a real-time collaborative experimental session with any of the laboratories that belong to that course. The extension tools presented in this work are based in two different free and open source software programs: Moodle as the learning management system that offers the web environment and Easy Java Simulations for creating the virtual and remote laboratories with collaborative support.

关键词： Collaborative environments education educational environments virtual and remote laboratories

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Constraint programming for path planning with uncertainty: Solving the optimal search path problem

Constraint programming for path planning with uncertainty: S...

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18th International Conference on Principles and Practice of Constraint Programming, CP 2012

作者： Morin, Michael Papillon, Anika-Pascale Abi-Zeid, Irène Laviolette, François Quimper, Claude-Guy Department of Computer Science and Software Engineering Université Laval Québec QC Canada Department of Mathematics and Statistics Université Laval Québec QC Canada Department of Operations and Decision Systems Université Laval Québec QC Canada

ISBN: (纸本)9783642335570

The optimal search path (OSP) problem is a single-sided detection search problem where the location and the detectability of a moving object are uncertain. A solution to this -hard problem is a path on a graph that maximizes the probability of finding an object that moves according to a known motion model. We developed constraint programming models to solve this probabilistic path planning problem for a single indivisible searcher. These models include a simple but powerful branching heuristic as well as strong filtering constraints. We present our experimentation and compare our results with existing results in the literature. The OSP problem is particularly interesting in that it generalizes to various probabilistic search problems such as intruder detection, malicious code identification, search and rescue, and surveillance. © 2012 Springer-Verlag.

关键词： Motion planning

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Medical Ontology in the Dynamic Healthcare Environment

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Procedia computer science 2012年 10卷 340-348页

作者： Furkh Zeshan Radziah Mohamad Department of Software Engineering Faculty of Computer Science and Information Systems Universiti Teknologi Malaysia (UTM) 81310 Skudai Johor Malaysia

Advances in medical care and computer technology in recent decades have expanded the parameters of the traditional domain of medical services. This scenario has created new opportunities for building applications to provide enterprise services in an efficient, diverse and highly dynamic environment. Yet the involvement of multiple factors in healthcare systems, such as diverse professionals and embedded devices, has made IT-based healthcare systems expensive, competitive and complex. The deployment of different programming languages, platforms and data management standards has led to restrictions in flawless exchange, integration and reuse of information across different systems. In this regard, service-oriented architecture (SOA) is an advanced methodology that can be used for developing loosely coupled, dynamic, flexible, distributed and cost-effective applications. SOA relies on services and can handle complexity and heterogeneity with the help of ontologies. In this paper, we show our development of domain ontology for the effective handling of IT-based healthcare system problems especially during an emergency.

关键词： Medical ontology domain ontology ontology construction knowledge management

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Comparing six modeling approaches

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Workshops and Symposia on Models in software engineering, MODELS 2011

作者： Mussbacher, Gunter Al Abed, Wisam Alam, Omar Ali, Shaukat Beugnard, Antoine Bonnet, Valentin Bræk, Rolv Capozucca, Alfredo Cheng, Betty H.C. Fatima, Urooj France, Robert Georg, Geri Guelfi, Nicolas Istoan, Paul Jézéquel, Jean-Marc Kienzle, Jörg Klein, Jacques Lézoray, Jean-Baptiste Malakuti, Somayeh Moreira, Ana Phung-Khac, An Troup, Lucy Department of Systems and Computer Engineering Carleton University Canada Software Engineering Laboratory McGill University Montreal Canada Simula Research Laboratory Norway Département Informatique TELECOM Bretagne France Department of Telematics Norwegian University of Science and Technology Norway LASSY Research Team University of Luxembourg Luxembourg Department of Computer Science and Engineering Michigan State University United States Computer Science Department Colorado State University Fort Collins United States ISC Department CRP Gabriel Lippmann Luxembourg INRIA Centre Rennes - Bretagne Atlantique Rennes France Laboratory for Advanced Software Systems University of Luxembourg Luxembourg Software Engineering Group University of Twente Netherlands Universidade Nova de Lisboa Lisbon Portugal Department of Psychology Colorado State University Fort Collins United States

ISBN: (纸本)9783642296444

While there are many aspect-oriented modeling (AOM) approaches, from requirements to low-level design, it is still difficult to compare them and know under which conditions different approaches are most applicable. This comparison, however, is crucially important to unify existing AOM and more traditional object-oriented modeling (OOM) approaches and to generalize individual approaches into a comprehensive end-to-end method. Such a method does not yet exist. This paper reports on work done at the inaugural Comparing Modeling Approaches (CMA) workshop towards the goal of identifying potential comprehensive methodologies: (i) a common, focused case study for six modeling approaches, (ii) a set of criteria applied to each of the six approaches, and (iii) the assessment results. © 2012 Springer-Verlag Berlin Heidelberg.

关键词： Artificial intelligence

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Threshold concepts and threshold skills in computing 12

Threshold concepts and threshold skills in computing

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9th Annual International Conference on International Computing Education Research, ICER 2012

作者： Sanders, Kate Boustedt, Jonas Eckerdal, Anna Mccartney, Robert Moström, Jan Erik Thomas, Lynda Zander, Carol Mathematics and Computer Science Department Rhode Island College Providence RI United States Faculty of Engineering and Sustainable Development University of Gävle Gävle Sweden Department of Information Technology Uppsala University Uppsala Sweden Department of Computer Science and Engineering University of Connecticut Storrs CT United States Department of Computing Science Umeå University 901 87 Umeå Sweden Department of Computer Science Aberystwyth University Aberystwyth United Kingdom Computing and Software Systems University of Washington Bothell WA United States

ISBN: (纸本)9781450316040

Threshold concepts can be used to both organize disciplinary knowledge and explain why students have difficulties at certain points in the curriculum. Threshold concepts transform a student's view of the discipline;before being learned, they can block a student's progress. In this paper, we propose that in computing, skills, in addition to concepts, can sometimes be thresholds. Some students report finding skills more difficult than concepts. We discuss some computing skills that may be thresholds and compare threshold skills and threshold concepts. Copyright 2012 ACM.

关键词： Students

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Self-directed learning: Stories from industry 12

Self-directed learning: Stories from industry

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12th Koli Calling International Conference on Computing Education Research, Koli Calling 2012

作者： Zander, Carol Boustedt, Jonas Eckerdal, Anna Mccartney, Robert Moström, Jan Erik Sanders, Kate Thomas, Lynda Computing and Software Systems University of Washington Bothell Bothell WA United States Faculty of Engineering and Sustainable Development University of Gävle Gävle Sweden Department of InformationTechnology Uppsala University Uppsala Sweden Department of Computer Science and Engineering University of Connecticut Storrs CT United States Department of Computing Science Umeå University 901 87 Umeå Sweden Mathematics and Computer Science Department Rhode Island College Providence RI United States Department of Computer Science Aberystwyth University Aberystwyth United Kingdom

ISBN: (纸本)9781450317955

We report preliminary results from an ongoing investigation of how computing professionals perceive and value selfdirected learning, based on a qualitative analysis of interviews with ten computing professionals. The professionals expect that future colleagues will have a well-developed ability to learn on their own. They indicate that professionals use a range of resources, strategies, and collaborators to help them learn. They find their work-related self-directed learning enjoyable, expressing a sense of confidence and pride;yet they often also find it to be a stressful never-ending process. Copyright 2012 ACM.

关键词： informal learning self-directed learning industry perspective

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WLAR-Viz: Weighted least association rules visualization

WLAR-Viz: Weighted least association rules visualization

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3rd International Conference on Information Computing and Applications, ICICA 2012

作者： Noraziah, A. Abdullah, Zailani Herawan, Tutut Deris, Mustafa Mat Faculty of Computer Systems and Software Engineering Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Kuantan Pahang Malaysia Department of Computer Science Universiti Malaysia Terengganu 21030 Kuala Terengganu Terengganu Malaysia Faculty of Computer Science and Information Technology Universiti Tun Hussein Onn Malaysia Parit Raja Batu Pahat 86400 Johor Malaysia

ISBN: (纸本)9783642340611

Mining weighted least association rules has been an increasing demand in data mining research. However, mining these types of rules often facing with difficulties especially in identifying which rules are really interesting. One of the alternative solutions is by applying the visualization model in those particular rules. In this paper, a model for visualizing weighted least association rules is proposed. The proposed model contains five main steps, including scanning dataset, constructing Least Pattern Tree (LP-Tree), applying Weighted Support Association Rules (WSAR*), capturing Weighted Least Association Rules (WELAR) and finally visualizing the respective rules. The results show that by using a three dimensional plots provide user friendly navigation to understand the weighted support and weighted least association rules. © 2012 Springer-Verlag.

关键词： Data mining

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Scalable technique to discover items support from trie data structure

Scalable technique to discover items support from trie data ...

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3rd International Conference on Information Computing and Applications, ICICA 2012

ISBN: (纸本)9783642340611

One of the popular and compact trie data structure to represent frequent patterns is via frequent pattern tree (FP-Tree). There are two scanning processes involved in the original database before the FP-Tree can be constructed. One of them is to determine the items support (items and their support) that fulfill minimum support threshold by scanning the entire database. However, if the changes are suddenly occurred in the database, this process must be repeated all over again. In this paper, we introduce a technique called Fast Determination of Item Support Technique (F-DIST) to capture the items support from our proposed Disorder Support Trie Itemset (DOSTrieIT) data structure. Experiments through three UCI benchmark datasets show that the computational time to capture the items support using F-DIST from DOSTrieIT is significantly outperformed the classical FP-Tree technique about 3 orders of magnitude, thus verify its scalability. © 2012 Springer-Verlag.

关键词： Database systems

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DFP-growth: An efficient algorithm for mining frequent patterns in dynamic database

DFP-growth: An efficient algorithm for mining frequent patte...

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3rd International Conference on Information Computing and Applications, ICICA 2012

作者： Abdullah, Zailani Herawan, Tutut Noraziah, A. Deris, Mustafa Mat Department of Computer Science University Malaysia Terengganu 21030 Kuala Terengganu Terengganu Malaysia Faculty of Computer Systems and Software Engineering University Malaysia Pahang Lebuhraya Tun Razak 26300 Kuantan Pahang Malaysia Faculty of Computer Science and Information Technology University Tun Hussein Onn Malaysia Parit Raja Batu Pahat 86400 Johor Malaysia

ISBN: (纸本)9783642340611

Mining frequent patterns in a large database is still an important and relevant topic in data mining. Nowadays, FP-Growth is one of the famous and benchmarked algorithms to mine the frequent patterns from FP-Tree data structure. However, the major drawback in FP-Growth is, the FP-Tree must be rebuilt all over again once the original database is changed. Therefore, in this paper we introduce an efficient algorithm called Dynamic Frequent Pattern Growth (DFP-Growth) to mine the frequent patterns from dynamic database. Experiments with three UCI datasets show that the DFP-Growth is up to 1.4 times faster than benchmarked FP-Growth, thus verify it efficiencies. © 2012 Springer-Verlag.

关键词： Database systems

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Hybrid modeling and simulation for trustworthy software process management: A stakeholder-oriented approach

Hybrid modeling and simulation for trustworthy software proc...

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作者： Bai, Xu Huang, LiGuo Zhang, He Koolmanojwong, Supannika Department of Computer Science and Engineering Southern Methodist University Dallas TX 75205 United States National ICT Australia University of New South Wales Sydney Australia Center for Systems and Software Engineering University of Southern California Los Angeles CA 90089 United States

Process Management Model (PMM) and Process Simulation Model (PSM) are the critical infrastructural components of the Trustworthy Process Management Framework (TPMF), which involves a large and heterogeneous group of stakeholders in process modeling and simulation to improve process trustworthiness. Process Modeling Stakeholders (PMS) have different levels of dependency on various process modeling and simulation techniques. They may also possess different perspectives or concerns in modeling. To support trustworthy process management, this paper integrates the stakeholder-oriented approach and hybrid simulation technique into software process modeling at three levels of abstraction (i.e., activity, sub-process and system). The hybrid process simulation combines micro-level discrete process models with the macro-level continuous process models to capture process dynamics. In particular, the stakeholderoriented approach addresses the various perspectives of PMS during process modeling and simulation. Finally, a case study with a realistic process model demonstrates that this approach incrementally integrates stakeholders' modeling concerns through hybrid simulation, which is difficult to achieve using discrete or continuous modeling/simulation techniques independently. Copyright © 2010 John Wiley & Sons, Ltd.

关键词： Modeling languages

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