Submitted by Maria Dulce (mdulce@ndc.uff.br) on 2014-07-11T19:41:42Z No. of bitstreams: 1 Ley, Maria Dulce-Dissert_CI_-2013.pdf: 1518359 bytes, checksum: f3d3d1b7c69ab5cf329ef7e3c175bbe3 (MD5) / Approved for entry into archive by Maria Dulce (mdulce@ndc.uff.br) on 2014-07-11T19:42:53Z (GMT) No. of bitstreams: 1 Ley, Maria Dulce-Dissert_CI_-2013.pdf: 1518359 bytes, checksum: f3d3d1b7c69ab5cf329ef7e3c175bbe3 (MD5) / Made available in DSpace on 2014-07-11T19:42:53Z (GMT). No. of bitstreams: 1 Ley, Maria Dulce-Dissert_CI_-2013.pdf: 1518359 bytes, checksum: f3d3d1b7c69ab5cf329ef7e3c175bbe3 (MD5) / Universidade Federal Fluminense / Esta dissertação objetiva sugerir diretrizes para uma política de povoamento de repositórios institucionais (RIs), com vistas a subsidiar a política informacional a ser formulada para o repositório em construção no contexto da UFF. Os repositórios institucionais são analisados, numa abordagem macro, especialmente sob os pontos concernentes às questões institucionais, de gestão, de implantação e tecnológicas. Numa perspectiva mais detalhada, a investigação deteve-se nos quatro eixos prioritários para o estabelecimento de repositórios: tipologia documental; forma de depósito; direito autoral; divulgação, marketing. A pesquisa, de natureza qualitativa e de caráter exploratório, fundamentou-se na literatura sobre o assunto, aliada ao campo empírico, que trouxe à luz algumas experiências brasileiras de desenvolvimento de RIs (UERJ, Fiocruz e Inmetro), além da percepção de atores sociais da própria UFF, comprometidos oficial e significativamente com a construção do RI, que, sob o método da coleta de dados da entrevista semiestruturada, apresentaram seus pontos de vista e observações sobre as questões relativas ao Acesso Aberto, ao desenvolvimento de repositórios, às políticas informacionais voltadas para os repositórios, bem como sobre outros itens concernentes ao tema. A importância da pesquisa deve-se ao destaque que os RIs vêm galgando no meio acadêmico e científico como grande propagador da produção intelectual, por possibilitarem maior visibilidade e impacto das pesquisas produzidas nas instituições. Conclui-se que as recomendações apresentadas como resultados do estudo, baseadas nas proposições constantes da literatura especializada, nas experiências investigadas e nas observações de atores sociais da UFF, permitiram que a pesquisa alcançasse o objetivo pretendido de indicar parâmetros para proposição de diretrizes para a composição da política de povoamento para o repositório em desenvolvimento no contexto da UFF. / The purpose of this thesis is to suggest guidelines for policies related to the settling of institutional repositories (IRs) under development at UFF. Institutional repositories are analyzed in a broad way, especially in the topics related to policy, institutional environment, management, implementation, and technology. The crucial of the research is centered around four themes: typology of the documents, form of deposit; copyright; diffusion and marketing. The analysis is qualitative and exploratory, building on the existing theoretical and empirical literature on the subject. In particular, the existing empirical literature analyses the developing of IRs at UERJ, Fiocruz and Inmetro. The development of IRs at UFF is developed from semi-structured interviews to members of the UFF community, who presented their views on processes of data collection, Open Access to various databases, development of IRs, and broader information policies. The motivation of this research builds on the growing importance of IRs to the academic community, mostly due to the greater visibility it gives to the intellectual production and the research universities. In conclude, this research builds on the existing literature, experiments investigated and the interviews of members of the UFF to present guidelines for the development of settlements of institutional repositories under construction at UFF.

Taking its cue from the increasing amount of digital content deposited into institutional and subject repositories as well as the open question of repositories'' role in long-term preservation, this study presents case studies of three German institutional and subject repositories all of which are in a different stage of establishing a (cooperative) framework for the long-term preservation of their digital collections. Drawing on different sets of criteria for trustworthy repositories, it is investigated which strategies the selected repositories pursue to preserve the digital assets in their collections, and how these strategies are implemented with the help of both human repository staff and the repository software used. The following repositories are considered: pedocs (Deutsches Institut für Internationale Pädagogische Forschung), JUWEL (Forschungszentrum Jülich), and Qucosa (SLUB Dresden). In that the latter can be regarded as examples for common types of (German) repositories, the results of this study might on the one hand serve as a guideline for repositories that intend, similar to the ones described here, to explore questions of long-term preservation in the near future, or are even taking their first concrete steps in this field. On the other hand, it is hoped that this work can at least give some hints as to the stage and status of long-term preservation in the German repository landscape.

Thesis (M.A. ( Information Studies)) -- University of Limpopo, 2021 / This study aimed to examine the extent of awareness and the adoption of Open Access (OA) publishing for the purpose of scholarly communication by academic staff at the University of Limpopo (UL). The study was guided by Rogers’ Diffusion of Innovation theory (1) to measure the level of awareness of academics on the availability and use of OA resources; (2) to determine the adoption and usage levels of OA publishing as a platform for information sharing by academics in scholarly communication; (3) to establish academics’ attitudes towards the use of the OA publishing platforms; and (4) to identify perspectives of academic staff with regards to challenges and benefits presented by OA publishing. A dominantly quantitative research approach was adopted using a google forms questionnaire with closed ended questions to collect data from 250 academics at the University of Limpopo. Academics were selected using the systematic simple random sampling method. To ensure the survey instrument’s reliability and validity, the researcher conducted a pilot study through a web-based survey. A descriptive statistics method of the Statistical Package for Social Sciences (SPSS) was used to analyse data. The study established that the majority (82%) of academics were aware of OA publishing platforms. The internet and subject librarians were the main communication channels through which they became aware of OA publishing. The study also found that there was minimal the adoption and usage of OA publishing among academics. Their attitudes towards OA and their perceptions of the benefits and challenges of OA. The general attitudes of academics about OA were positive, signifying the acceptance of this scholarly communication mode. However, some of the challenges encountered in adopting and using OA publishing include slow internet connectivity and access, publication charges by some publishers, lack of skills to publish online, power interruptions, lack of policies on OA, fake and predatory v publishers and OA articles not being peer-reviewed. These were reported as problems that directly or indirectly hinder academics from publishing in OA platforms. The study recommends the institutionalisation of OA publishing at UL to improve research output dissemination. An area for further research will be to establish more insights regarding the feasibility of OA development and possible ways of dealing with article processing fees. Keywords: Open Access publishing, scholarly communication, Academic staff, Institutional Repositories, Rogers’ Diffusion of Innovation theory, University of Limpopo.

Mining Software Repositories, which is the process of analyzing the data related to software development practices, is an emerging field which aims to aid development teams in their day to day tasks. However, data in many software repositories is currently unused because the data is unstructured, and therefore difficult to mine and analyze. Information Retrieval (IR) techniques, which were developed specifically to handle unstructured data, have recently been used by researchers to mine and analyze the unstructured data in software repositories, with some success. The main contribution of this thesis is the idea that the research and practice of using IR models to mine unstructured software repositories can be improved by going beyond the current state of affairs. First, we propose new applications of IR models to existing software engineering tasks. Specifically, we present a technique to prioritize test cases based on their IR similarity, giving highest priority to those test cases that are most dissimilar. In another new application of IR models, we empirically recover how developers use their mailing list while developing software. Next, we show how the use of advanced IR techniques can improve results. Using a framework for combining disparate IR models, we find that bug localization performance can be improved by 14–56% on average, compared to the best individual IR model. In addition, by using topic evolution models on the history of source code, we can uncover the evolution of source code concepts with an accuracy of 87–89%. Finally, we show the risks of current research, which uses IR models as black boxes without fully understanding their assumptions and parameters. We show that data duplication in source code has undesirable effects for IR models, and that by eliminating the duplication, the accuracy of IR models improves. Additionally, we find that in the bug localization task, an unwise choice of parameter values results in an accuracy of only 1%, where optimal parameters can achieve an accuracy of 55%. Through empirical case studies on real-world systems, we show that all of our proposed techniques and methodologies significantly improve the state-of-the-art. / Thesis (Ph.D, Computing) -- Queen's University, 2012-12-12 12:34:59.854

During software development and maintenance, as a software system evolves, changes are made and bugs are fixed in various files. In large-scale systems, file histories are stored in software repositories, such as CVS, which record modifications. By studying software repositories, we can learn about open source software development rocesses. Knowing where these changes will happen in advance, gives power to managers and developers to concentrate on those files. Due to the unpredictability in software development process, proposing an accurate change prediction model is hard. It is even harder to compare different models with the actual model of changes that is not available. <br /><br /> In this thesis, we first analyze the information generated during the development process, which can be obtained through mining the software repositories. We observe that the change data follows a Zipf distribution and exhibits self-similarity. Based on the extracted data, we then develop three probabilistic models to predict which files will have changes or bugs. One purpose of creating these models is to rank the files of the software that are most susceptible to having faults. <br /><br /> The first model is Maximum Likelihood Estimation (MLE), which simply counts the number of events i. e. , changes or bugs that occur in to each file, and normalizes the counts to compute a probability distribution. The second model is Reflexive Exponential Decay (RED), in which we postulate that the predictive rate of modification in a file is incremented by any modification to that file and decays exponentially. The result of a new bug occurring to that file is a new exponential effect added to the first one. The third model is called RED Co-Changes (REDCC). With each modification to a given file, the REDCC model not only increments its predictive rate, but also increments the rate for other files that are related to the given file through previous co-changes. <br /><br /> We then present an information-theoretic approach to evaluate the performance of different prediction models. In this approach, the closeness of model distribution to the actual unknown probability distribution of the system is measured using cross entropy. We evaluate our prediction models empirically using the proposed information-theoretic approach for six large open source systems. Based on this evaluation, we observe that of our three prediction models, the REDCC model predicts the distribution that is closest to the actual distribution for all the studied systems.

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Faculty works (e.g. journal articles, conference proceedings) in institutional repositories (IRs) differ from other collections due to their inclination for duplication on other platforms: publisher websites, preprint servers, other IRs, etc. This characteristic can create interesting and different approaches to planning, populating, and promoting faculty works collections. Come to this roundtable discussion to talk about current and future practices related to faculty works in IRs. Share your current policies, procedures, and outreach methods. Brainstorm the ideal future for faculty works collections. And ultimately, consider possible changes to your current practices to make that future into a reality.

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Embry-Riddle Aeronautical University (ERAU) is an institution with 2 residential campuses: 1 in Daytona Beach, Florida and one in Prescott, Arizona. ERAU also has a Worldwide presence through 125 campuses located on military bases and within the private business sector. The ERAU Worldwide Campus doesn’t stop with physical locations, however. It encompasses an online campus with virtual learning opportunities. The degrees offered through all of our campuses range from certificate programs through doctoral studies. The Scholarly Communication Team is located on the Daytona Beach campus. One of our challenges is to bring the intellectual output of all of our talented faculty from around the world into the ERAU institutional repository, called Scholarly Commons. In order to do this, we need an outreach plan which will capture the attention of our faculty members on our distance learning campuses and explain the benefits of participating in Scholarly Commons. To this end, we’ve begun to promote Scholarly Commons using a multi-format outreach strategy. We seek partners from within the distance learning faculty communities to help us show why faculty should participate in Scholarly Commons. This presentation will describe the processes we have tried and others we will be putting into place to educate our faculty on how they can use Scholarly Commons to organize and pursue research, tenure, and promotional activities.

Creating cost-effective and time efficient methods to complete tasks is necessary to maintain speedy and quality services expected by library patrons. Charles C. Sherrod Library at East Tennessee State University uses Zotero (a free, online reference management software) as a tool to expedite the process of entering faculty scholarship metadata into the institutional repository (IR), Digital Commons@ETSU (https://dc.etsu.edu). Additionally, Sherrod Library integrated Zotero with SHERPA/RoMEO (a database of publishers’ policies) to automate the process of determining which full-text materials can be included in the IR. Sherrod Library evaluated the usefulness of Zotero by examining the records entered into the software within a year. Complete and incomplete records were calculated in terms of disciplines and document types. Based on the results of the study, Sherrod Library now primarily uses Zotero for journal articles, books, and book contributions by STEM faculty. The disciplines of education and arts/humanities and the document types of newsletters/magazine articles and conference proceedings had too many incomplete records to justify using Zotero. This poster will visually represent the workflow of using Zotero through a chart and the results of the study through graphs. The workflow chart may be beneficial to an audience trying to automate their data entry. The results of the study may be of interest to anyone who uses or recommends reference management software in their position.