50,638 research outputs found

    Tapping Environmental History to Recreate America’s Colonial Hydrology

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    To properly remediate, improve, or predict how hydrological systems behave, it is vital to establish their histories. However, modern-style records, assembled from instrumental data and remote sensing platforms, hardly exist back more than a few decades. As centuries of data is preferable given multidecadal fluxes of both meteorology/climatology and demographics, building such a history requires resources traditionally considered only useful in the social sciences and humanities. In this Feature, Pastore et al. discuss how they have undertaken the synthesis of historical records and modern techniques to understand the hydrology of the Northeastern U.S. from Colonial times to modern day. Such approaches could aid studies in other regions that may require heavier reliance on qualitative narratives. Further, a better insight as to how historical changes unfolded could provide a “past is prologue” methodology to increase the accuracy of predictive environmental models

    RĂĄmec pro posouzenĂ­ kvalitativnĂ­ch hledisek informačnĂ­ch systĂ©mĆŻ

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    ZĂĄměrem pƙedloĆŸenĂ© disertačnĂ­ prĂĄce je porozumět tomu, jak investoƙi v konkrĂ©tnĂ­m společenskĂ©m kontextu vnĂ­majĂ­ vĂœznam kvality informačnĂ­ch systĂ©mĆŻ. Ze studia literatury zabĂœvajĂ­cĂ­ se pƙístupy a rĂĄmci hodnocenĂ­ kvality informačnĂ­ch systĂ©mĆŻ vyplĂœvĂĄ, ĆŸe tato kvalita je obecně hodnocena z hlediska striktnĂ­ho pƙístupu. V tĂ©to prĂĄci je ukĂĄzĂĄno, ĆŸe kvalitu informačnĂ­ho systĂ©mu lze smysluplně pochopit pouĆŸitĂ­m interpretačnĂ­ho paradigmatu a ĆŸe kvalita informačnĂ­ho systĂ©mu je definovĂĄna společensky a ovlivƈovĂĄna kontextem tohoto systĂ©mu. Studie byla zahĂĄjena prĆŻzkumem dvaceti libyjskĂœch organizacĂ­. PodrobnějĆĄĂ­ data byla zĂ­skĂĄna z pƙípadovĂ© studie dvou vybranĂœch libyjskĂœch organizacĂ­ pĆŻsobĂ­cĂ­ch ve veƙejnĂ©m sektoru. Pƙi empirickĂ© analĂœze nashromĂĄĆŸděnĂœch dat bylo vyuĆŸito rĂĄmce mnohočetnĂ© perspektivy, kterĂœ zahrnuje hlediska teorie strukturalizace, pojem mnohočetnĂœch perspektiv a metodologii měkkĂœch systĂ©mĆŻ. V prĂĄci se dospělo ke zjiĆĄtěnĂ­, ĆŸe: a) kvalita informačnĂ­ch systĂ©mĆŻ je pojata ơíƙe, neĆŸ je tomu u tradičnĂ­ definice kvality, b) mnohočetnĂ© perspektivy kvality informačnĂ­ch systĂ©mĆŻ jsou ovlivněny opakovanou interakcĂ­ mezi investorem a institucionĂĄlnĂ­mi vlastnostmi kontextu informačnĂ­ho systĂ©mu a ĆŸe c) rozdĂ­lnĂ© hodnoty v kulturnĂ­m prostƙedĂ­ a vnějĆĄĂ­m kontextu ovlivƈujĂ­ rozsah pĆŻsobnosti investora a interakce v kontextu informačnĂ­ho systĂ©mu. Ze zĂĄvěru prĂĄce vyplĂœvĂĄ, ĆŸe společenskĂĄ skladba mnohočetnĂœch perspektiv kvality informačnĂ­ho systĂ©mu je ovlivněna strukturalizačnĂ­mi procesy mezi investory a vlastnostmi v kontextu informačnĂ­ho systĂ©mu.This thesis is concerned with understanding how stakeholders in a particular cultural context construct the multiple meanings of ‘Information Systems Quality’ (IS Quality). A review of literature on approaches and frameworks for IS quality shows that the IS quality is generally examined through a ‘hard approach’. This study demonstrates that IS quality can be meaningfully understood through an interpretive paradigm, and that IS quality is socially constructed and influenced by the IS context. The study began with an exploratory survey of twenty Libyan organizations. Data were gathered through a case study of two public sector organizations in Libya. A Multiple Perspective Framework (MPF) that incorporates ideas from structuration theory, multiple perspectives concept, and soft systems methodology (SSM) was used to analyze the empirical work. The findings revealed that: (a) IS quality is a broader conception than the traditional quality definition, (b) the multiple perspectives of IS quality are influenced by repeated interaction between the stakeholder and institutional properties in the IS context, and (c) mediation of different values in the culture system and in the external context influence the extent of stakeholder agency and interaction in the IS context. The study concluded that the social construction of multiple perspectives of IS quality is influenced by the structuration processes between stakeholders and properties in the IS context.

    Methodological considerations concerning manual annotation of musical audio in function of algorithm development

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    In research on musical audio-mining, annotated music databases are needed which allow the development of computational tools that extract from the musical audiostream the kind of high-level content that users can deal with in Music Information Retrieval (MIR) contexts. The notion of musical content, and therefore the notion of annotation, is ill-defined, however, both in the syntactic and semantic sense. As a consequence, annotation has been approached from a variety of perspectives (but mainly linguistic-symbolic oriented), and a general methodology is lacking. This paper is a step towards the definition of a general framework for manual annotation of musical audio in function of a computational approach to musical audio-mining that is based on algorithms that learn from annotated data. 1

    The Atlantic divide: methodological and epistemological differences in economic history

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    In the paper the development of economic history will be placed within the evolution of Western thought and culture. Therefore an analysis of the connections between economic history and contemporary epistemology will be carried out. In this perspective an analogy with the traditional division between analytic philosophy and continental philosophy would appear to be useful for economic history too: the first had long prevailed in Anglo-Saxon, the second in continental, culture. This partition evokes and embraces the antithesis between scientific and humanist culture, between logic and rhetoric, analysis and interpretation, conceptual clarification and visions of the world. The paper suggest that the opposition that loomed large over the post W.W.II decades between Anglo-American and European economic histories can also be conceived as a specific form of the wider opposition between ‘analytic style’ and ‘continental style’.economic history, methodology, epistemology, cliometrics, business history, economic thought
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