7,433 research outputs found

    XML content warehousing: Improving sociological studies of mailing lists and web data

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    In this paper, we present the guidelines for an XML-based approach for the sociological study of Web data such as the analysis of mailing lists or databases available online. The use of an XML warehouse is a flexible solution for storing and processing this kind of data. We propose an implemented solution and show possible applications with our case study of profiles of experts involved in W3C standard-setting activity. We illustrate the sociological use of semi-structured databases by presenting our XML Schema for mailing-list warehousing. An XML Schema allows many adjunctions or crossings of data sources, without modifying existing data sets, while allowing possible structural evolution. We also show that the existence of hidden data implies increased complexity for traditional SQL users. XML content warehousing allows altogether exhaustive warehousing and recursive queries through contents, with far less dependence on the initial storage. We finally present the possibility of exporting the data stored in the warehouse to commonly-used advanced software devoted to sociological analysis

    Using Fuzzy Linguistic Representations to Provide Explanatory Semantics for Data Warehouses

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    A data warehouse integrates large amounts of extracted and summarized data from multiple sources for direct querying and analysis. While it provides decision makers with easy access to such historical and aggregate data, the real meaning of the data has been ignored. For example, "whether a total sales amount 1,000 items indicates a good or bad sales performance" is still unclear. From the decision makers' point of view, the semantics rather than raw numbers which convey the meaning of the data is very important. In this paper, we explore the use of fuzzy technology to provide this semantics for the summarizations and aggregates developed in data warehousing systems. A three layered data warehouse semantic model, consisting of quantitative (numerical) summarization, qualitative (categorical) summarization, and quantifier summarization, is proposed for capturing and explicating the semantics of warehoused data. Based on the model, several algebraic operators are defined. We also extend the SQL language to allow for flexible queries against such enhanced data warehouses

    Intelligent student engagement management : applying business intelligence in higher education

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    Advances in emerging ICT have enabled organisations to develop innovative ways to intelligently collect data that may not be possible before. However, this leads to the explosion of data and unprecedented challenges in making strategic and effective use of available data. This research-in-progress paper presents an action research focusing on applying business intelligence (BI) in a UK higher education institution that has developed a student engagement tracking system (SES) for student engagement management. The current system serves merely as a data collection and processing system, which needs significant enhancement for better decision support. This action research aims to enhance the current SETS with BI solutions and explore its strategic use. The research attempts to follow socio-technical approach in its effort to make the BI application a success. Progress and experience so far has revealed interesting findings on advancing our understanding and research in organisation-wide BI for better decision-making

    Supply chain management and the Romanian transition

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    The purpose of this paper is to perform a systemic analysis of the Supply Chain Management, and to show what are the essential aspects of such a complex process. Actually, it is an integral perspective of intra- and interorganizational management activities aiming at the optimization of all important tangible and intangible fluxes and forces acting in a multifield framework. In the same time, we are looking at the Romanian transition and show how such a new perspective can be applied to the business environment. The analysis is challenging, since Romania is in a deep change process from a centrally planned economy toward a free market economy.management, supply chain management, system analysis, transition economy.

    Mining Frequent Generalized Patterns for Web Personalization in the presence of Taxonomies

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    The Web is a continuously evolving environment, since its content is updated on a regular basis. As a result, the traditional usage-based approach to generate recommendations that takes as input the navigation paths recorded on the Web page level, is not as effective. Moreover, most of the content available online is either explicitly or implicitly characterized by a set of categories organized in a taxonomy, allowing the page-level navigation patterns to be generalized to a higher, aggregate level. In this direction, the authors present the Frequent Generalized Pattern (FGP) algorithm. FGP takes as input the transaction data and a hierarchy of categories and produces generalized association rules that contain transaction items and/or item categories. The results can be used to generate association rules and subsequently recommendations for the users. The algorithm can be applied to the log files of a typical Web site; however, it can be more helpful in a Web 2.0 application, such as a feed aggregator or a digital library mediator, where content is semantically annotated and the taxonomic nature is more complex, requiring us to extend FGP in a version called FGP+. The authors experimentally evaluate both algorithms using Web log data collected from a newspaper Web site

    BioCloud Search EnGene: Surfing Biological Data on the Cloud

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    The massive production and spread of biomedical data around the web introduces new challenges related to identify computational approaches for providing quality search and browsing of web resources. This papers presents BioCloud Search EnGene (BSE), a cloud application that facilitates searching and integration of the many layers of biological information offered by public large-scale genomic repositories. Grounding on the concept of dataspace, BSE is built on top of a cloud platform that severely curtails issues associated with scalability and performance. Like popular online gene portals, BSE adopts a gene-centric approach: researchers can find their information of interest by means of a simple “Google-like” query interface that accepts standard gene identification as keywords. We present BSE architecture and functionality and discuss how our strategies contribute to successfully tackle big data problems in querying gene-based web resources. BSE is publically available at: http://biocloud-unica.appspot.com/

    The Art of Value Creation with Information Technology Potentials in Business Planning – the Role Strategic Information Systems

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    Value creation has to do with delivering products or services to clients at lower prices and as well as distinguishing the products or services from competitor in terms of improved quality, more functionalities, enhanced customer service that are clearly distinguishable from competitors’. To create effective value, entities can no longer develop a business strategy separate from IT strategy and vice versa. The fusion of business and IT strategy is increasingly one of the most dramatic developments affecting organisations today. IT strategy in business planning coincides with the role of Strategic Information Systems. ‘Strategic information systems’ is, therefore, a long term plan to combine innovative Information Technologies with up-to-date managerial skills to tap potentials in technology to cut down waste and cost to improve profitability. This article analyses the role Strategic information systems can play in realising the idea that Information technology is a potential for the creation of stakeholder value by focussing on organisations’ business processes placing the analysis in the context of Porter’s value chain. The article considers possibilities of capturing value in emerging economic environments where, due to competition, the Internet, mobile business intelligence and innovative collaboration systems and other technologies have become capabilities for achieving competitive advantage. Secondly, the paper demonstrates the technologies that organisations endeavouring to create value have striven to make it with. Key words: Information Systems, IT, Support, Strategy, Investment, Service, Profitability, Value-chain, Value creations, Collaboration, Business Intelligence, Competitive Advantage
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