42,953 research outputs found

    Business process model repositories : efficient process retrieval

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    As organizations increasingly work in process-oriented manner, the number of business process models that they develop and have to maintain increases. As a consequence, it has become common for organizations to have collections of hundreds or even thousands of business process models. When a collection contains such a large number of business process models, it is impossible to manage that collection manually. Therefore, Business Process (BP) Model Repositories are required that store large collections of process models and provide techniques for managing these collections automatically and efficiently. The goal of research described in this thesis is to improve on existing BP Model Repositories, by improving the management techniques that are supported by these repositories on an aspect that has received little attention so far. Looking ahead at the results of the research, the aspect that will be selected for improvement is the process retrieval aspect. The two main research activities that will be carried in the context of this research are the following. Firstly, a survey of Business Process Model Repositories is performed to identity an unsolved aspect to be enhanced. The functionality of existing BP Model Repositories is listed and summarized as a framework for BP Model Repositories. After comparing the functionality that is provided by existing BP Model Repositories, based on the framework, efficient process retrieval is selected as the aspect that will be improved. This aspect is selected, because, although existing BP Model Repositories provide techniques for process retrieval, none of them focus on the efficiency of process retrieval. Secondly, an indexing technique for process retrieval (both process similarity search and process querying) is proposed. The index is constructed using features of process models. Features are small and characteristic fragments of process models. As such, by matching features of a given query/search model and features of a process model in a collection, a small set of models in the collection that potentially match the query/search model can be retrieved efficiently through the index. Techniques are also proposed to further check whether a potential match is an actual match for the query/search model. All of the above techniques are implemented as a component of the AProMoRe (an Advanced Process Model Repository) process repository. To evaluate the proposed process retrieval techniques, experiments are run using both real-life and synthetic process model collections. Experimental results show that on average the process retrieval techniques proposed in this thesis performs at least one order of magnitude faster than existing techniques

    Quality interoperability within digital libraries: the DL.org perspective

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    Quality is the most dynamic aspect of DLs, and becomes even more complex with respect to interoperability. This paper formalizes the research motivations and hypotheses on quality interoperability conducted by the Quality Working Group within the EU-funded project DL.org (<a href="http://www.dlorg.eu">http://www.dlorg.eu/</a>). After providing a multi-level interoperability framework – adopted by DL.org - the authors illustrate key-research points and approaches on the way to the interoperability of DLs quality, grounding them in the DELOS Reference Model. By applying the DELOS Reference Model Quality Concept Map to their interoperability motivating scenario, the authors subsequently present the two main research outcomes of their investigation - the Quality Core Model and the Quality Interoperability Survey

    BlogForever D3.2: Interoperability Prospects

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    This report evaluates the interoperability prospects of the BlogForever platform. Therefore, existing interoperability models are reviewed, a Delphi study to identify crucial aspects for the interoperability of web archives and digital libraries is conducted, technical interoperability standards and protocols are reviewed regarding their relevance for BlogForever, a simple approach to consider interoperability in specific usage scenarios is proposed, and a tangible approach to develop a succession plan that would allow a reliable transfer of content from the current digital archive to other digital repositories is presented

    Lirolem: A virtual studio/Institutional Repository for the University of Lincoln

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    Gives an account of the Lirolem project at the University of Lincoln which was to build a repository capable of handling multimedia material as well as providing a repository for the University's research output

    Open Access Publishing: A Literature Review

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    Within the context of the Centre for Copyright and New Business Models in the Creative Economy (CREATe) research scope, this literature review investigates the current trends, advantages, disadvantages, problems and solutions, opportunities and barriers in Open Access Publishing (OAP), and in particular Open Access (OA) academic publishing. This study is intended to scope and evaluate current theory and practice concerning models for OAP and engage with intellectual, legal and economic perspectives on OAP. It is also aimed at mapping the field of academic publishing in the UK and abroad, drawing specifically upon the experiences of CREATe industry partners as well as other initiatives such as SSRN, open source software, and Creative Commons. As a final critical goal, this scoping study will identify any meaningful gaps in the relevant literature with a view to developing further research questions. The results of this scoping exercise will then be presented to relevant industry and academic partners at a workshop intended to assist in further developing the critical research questions pertinent to OAP

    Exposing the Intellectual Assets of a University Department

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    Works for designing and deploying a university department repository are presented. General considerations about policies and functional requirements are outlined with respect to the institution context. Technical and system issues are briefly discussed. Finally the benefits and usability of the repository are summarized

    Digital Preservation Services : State of the Art Analysis

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    Research report funded by the DC-NET project.An overview of the state of the art in service provision for digital preservation and curation. Its focus is on the areas where bridging the gaps is needed between e-Infrastructures and efficient and forward-looking digital preservation services. Based on a desktop study and a rapid analysis of some 190 currently available tools and services for digital preservation, the deliverable provides a high-level view on the range of instruments currently on offer to support various functions within a preservation system.European Commission, FP7peer-reviewe

    Understanding information needs of Australian business organisations

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    Over the past decade, universities have used repositories as channels to create access to research outputs. Increasingly government and universities are seeking to optimise the impact of their research, particularly to improve public policy. This study looks at the impact of access to research from the perspective of business associations and researchers. It finds that business organisations value trusted timely, relevant research. Accessibility and peer-reviewed research outputs are highly valued but little used. Barriers to use of the research include availability (material not openly accessible), discoverability (ranking on search engines) and knowledge by trusted mediators and connectivity (presentation as part of a cohort of scholarly knowledge). Barriers for researchers include lack of rewards and recognition for research outputs focused on these organisations. The theories used in the study include triple helix, Kautto-Koivula and Huhtaniemi’s model for knowledge and competence management and actor network theory. The study concludes that significant work is required to improve the accessibility and discoverability of research. In particular, the search paradigm is insufficient to provide optimal awareness of and impact of research.Australian Library and Information Associatio

    Internet innovations:exploring new horizons

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    The aim of this paper is to provide a standpoint on an emerging trend in sharing digital video content over the Internet. The paper is based on participative evaluative analysis of business model employed by digital video content sharing providers. The authors have found that because of wide diffusion of broadband and cheap video recording equipment, enabling digital video content to be shared online, and emerging business internet video sharing practice its users increasingly find themselves infringing the intellectual property rights of others. This has implications for anyone using online video resources. The paper offers an insight into the increasing popularity of online video and the resulting dilemmas encountered by internet researchers; it also offers a functional way for researchers, businesses and online users to understand the mechanism of infringement of the intellectual property rights relating to online video content. The paper further contributes to expanding the understanding of internet users behaviour in relation to digital video content creation and distribution in the context of challenges faced by cyberlaw
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