1,721,046 research outputs found
Opening Up Access to Scientific Information: Recommendations for Improving Virtual Repositories and Online Communities
Full text linkOpening up the access to scientific information is an increasing demand and crucial need for researchers and also for all citizens, communities and societies: VOA3R, the European initiative for the Virtual Open Access Agriculture & Aquaculture Repository, has established the online platform connecting digital libraries and facilitating virtual communities with unique opportunities for sharing scientific and scholarly research related to agriculture, food, and environment.
This publication presents the main outcomes and recommendations of VOA3R, the European initiative for the Virtual Open Access Agriculture & Aquaculture Repository. This flagship project supported by the European Commission facilitated, improved and sustained the open access to all European and international digital contents, scientific information and research results as well as their online discussion and exchange.
The main recommendations derived and drawn from the selected five key tasks and activities (quality management, elicitation of the user requirements, social networking services, content population, and evaluation by experiments and trials) were presented in brief: They were also identified by the evaluation of the experiments and trials and and their relation between the two dimensions required efforts (indicated by the realization type from easy to difficult) and expected effects (indicated by the impact from short- to long-term) were indicated in a first overview. That allows also other and future initiative to benefit from the achieved VOA3R results and insights.
VOA3R has achieved successfully its objectives and went beyond them, also analysed and evaluated through the experiments and trials: VOA3R could establish the online platform connecting digital libraries and facilitate services and social networking including virtual communities.
Thus, it can be summarized that VOA3R provided and continuously provides through the sustainability strategy unique opportunities for sharing scientific and scholarly research related to agriculture, food, and environment.
For open access to the best scientific information in Europe and worldwide
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Proceedings of the 1st Workshop on Social Information Retrieval for Technology-Enhanced Learning
No full textstatus: Publishe
A trust-based social recommender for teachers
Full text linkFazeli, S., Drachsler, H., Brouns, F., & Sloep, P. B. (2012). A trust-based social recommender for teachers. In N. Manouselis, H. Drachsler, K. Verbert, & O. C. Santos (Eds.), 2nd Workshop on Recommender Systems for Technology Enhanced Learning (RecSysTEL 2012) in conjunction with the 7th European Conference on Technology Enhanced Learning (EC-TEL 2012) (pp. 49-60). September, 18-19, 2012, Saarbrücken, Germany.Online communities and networked learning provide teachers with social learning opportunities to interact and collaborate with others in order to develop their personal and professional skills. In this paper, Learning Networks are presented as an open infrastructure to provide teachers with such learning opportunities. However, with the large number of learning resources produced everyday, teachers need to find out what are the most suitable resources for them. In this paper, recommender systems are introduced as a potential solution to address this issue. Unfortunately, most of the educational recommender systems cannot make accurate recommendations due to the sparsity of the educational datasets. To overcome this problem, we propose a research approach that describes how one may take advantage of the social data which are obtained from monitoring the activities of teachers while they are using our social recommender.NELLL, Open Discovery Space (ODS
Competency comparison relations for recommendation in technology enhanced learning scenarios
No full textIn this paper, we address the problem of competency comparison, providing some heuristics to help match the competencies of users with those involved in task-based scenario components (actors, tasks, resources). Competencies are defined according to a structured competency model based on a domain ontology. We provide a context for recommendation through a learning scenario model. The approach has been implemented by extending an ontologydriven system called TELOS. It has been tested with a learning unit where these comparison relations are used to provide recommendations to users involved in a technology enhanced learning scenario
How Recommender Systems in Technology-Enhanced Learning depend on Context
Full text linkDrachsler, H., & Manouselis, N. (2009). How Recommender Systems in Technology-Enhanced Learning depend on Context. Presentation given at the 1st workshop on Context-aware Recommender Systems for Learning at the Alpine Rendez-Vous 2009. November, 30 - December, 3, 2009, Garmisch-Patenkirchen, Germany.Technology-Enhanced Learning (TEL) can roughly be differentiated into formal and non-formal learning settings. Both settings offer a rather different context that has to be taken into account by recommender systems in order to offer most suitable information to individual learners.
Formal learning, being usually organized according to some curriculum, traditionally occurs in teacher-directed environments with person-to-person interactions. Non-formal learning is described as a learning phase of lifelong learners who are not participating in any formal learning context. They are acting more self-directed and they are responsible for their own learning pace and path. In addition, the learning content for their learning nowadays come from many different Web 2.0 sources like blogs, social bookmarking tools, or sildeshare. The learning process is also not designed by an institution or responsible teachers like in formal learning, but it depends to a large extent on individual preferences learners have or choices that learners take.
Depending on the learning settings, the aims of TEL systems, their environmental conditions, and the tasks that they support also change. Thus, considering the way TEL context variables vary according to the adopted setting, the information needs of the targeted users change. This can greatly affect the design of recommender systems for the different learning settings.The work on this publication has been sponsored by the TENCompetence Integrated Project that is funded by the European Commission's 6th Framework Programme, priority IST/Technology Enhanced Learning. Contract 027087 [http://www.tencompetence.org
AGINFRA PLUS D8.4 - AGINFRA Association Blueprint
No full textIn the AGINFRA PLUS Sustainability Roadmap, we describe the way in which the technology partners of the consortium are envisioning how the key software infrastructures, services and tools of the project are going to be sustained after the project ends. This deliverable first provides an overview of the key software outcomes and highlights the ones selected for further exploitation. Then, it focuses on the targeted stakeholders and market segments, the business models chosen per targeted
segment, as well as the operational and financial resources required.
After the project’s Mid-Term Review meeting, an early version of this deliverable was prepared and submitted according to the reviewers’ request, to reflect our thinking and approach in terms of sustainability at that point of time. In this new version of the deliverable, we significantly revise, extend and complete our original thinking. It has become clearer to us that in an era of radical digital transformations in the food and agriculture sector, the way in which project outcomes may be positioned and offered to potential users has changed. This creates numerous opportunities for the partners that are interested to continue this investment after the end of the project.
The five (5) key technology offerings that we have decided to continue investing into are the
following:
D4Science-powered VREs (CNR): existing or new Virtual Research Environment (VREs) that specific communities or organisations may continue using or creating, over the D4Science e-infrastructure.
EGI-powered Jupyter Notebooks (EGI): existing or new scientific applications that will be using Jupyter Notebooks for interactive data science and scientific computing, over the EGI e-infrastructure.
EGI-powered Galaxy Workflows (EGI): existing or new scientific workflows that will be executed over Galaxy, over the EGI e-infrastructure.
Data Harvesting & Data Linking Services (Agroknow): existing or new software applications that will be using the semantic indexing and data lookup services of Agroknow (or request a white-label set up of their own similar service).
ARPHA-powered Data Journals (Pensoft): existing or new scientific data journals that will be powered by ARPHA.
In terms of large-scale computing facilities and cloud storage resources, the above technology offerings have been powered by the two European e-infrastructures that have been serving as the backbone of the project:
D4Science e-infrastructure (CNR & UoA): the Data Infrastructure that connects more that 7.000 scientists in over 50 countries, hosts more than 100 VREs for a variety of communities and that promises 99,8% service availability.
EGI e-infrastructure (EGI): the federation of cloud providers and data centres, spread across Europe and worldwide, that delivers advanced computing services to scientists, projects and research infrastructures.
The deliverable has modified and extended its initial scope of describing an “AGINFRA Association”, as the consortium has decided not to move forward with such a legal entity. Not all partners were equally interested in a joint commitment about the way to continue to support and evolve the various project outcomes. It was therefore decided that a select number of partners responsible for the above key AGINFRA PLUS technology offerings (namely, Agroknow, CNR, Pensoft, and EGI) develop jointly a plan about the future of these offerings. To this end, the original title of this deliverable “AGINFRA
Association Blueprint” has been revised to “AGINFRA PLUS Sustainability Roadmap”.
This Roadmap includes the following parts:
An overview of the main technology outcomes of AGINFRA PLUS, also comparing their IP, TRL and licensing to the ones originally foreseen in the DoA.
An introduction of the need that we see in the market & technology outcomes that we have decided to offer: what is the situation in the current market, with the food and agriculture sector being under a huge transformation; who are the potential users/customers that we may address; which are the specific market segments that we believe have potential for our partners and offerings.
An overview of the market segments that we target and the offerings that are relevant: what are the specific audiences and their needs; which are the AGINFRA PLUS offerings that we see as relevant for these audiences; what is the competitive advantage that we have against the competition; what is the business model that we have decided to adopt in each case.
A description of the strategic, operational and financial requirements to continue supporting each offering: which are the labour and computing resources needed; what are the corresponding costs; how do the financial forecasts look for each offering
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