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| 2. |
- André, Karin, et al.
(författare)
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Assessing the Quality of Knowledge for Adaptation : Experiences From Co-designing Climate Services in Sweden
- 2021
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Ingår i: Frontiers in Climate. - Lausanne, Switzerland : Frontiers Research Foundation. - 2624-9553. ; 3
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Tidskriftsartikel (refereegranskat)abstract
- Adaptation to climate change is becoming more urgent, but the wealth of knowledge that informs adaptation planning and decision-making is not used to its full potential. Top-down approaches to knowledge production are identified as one important reason for the gap between science and practice and are criticized for not meeting the needs of intended users. In response to this challenge, there is a growing interest in the creation of user-oriented and actionable climate services to support adaptation. At the same time, recent research suggests that greater efforts are needed to evaluate the effectiveness of knowledge co-production processes and the best criteria by which to gauge the quality of knowledge outcomes, while also considering different stakeholder perspectives. This paper explores these issues through a critical assessment of the quality of knowledge for adaptation generated from a climate services co-design process in two case studies in Sweden. The study draws on experiences from a 5-year research collaboration in which natural and social science researchers, together with local stakeholders, co-designed climate services to support climate adaptation planning and decision-making. The well-established knowledge quality criteria of credibility, legitimacy, saliency, usability, and usefulness remain relevant, but are not sufficient to capture factors relating to whether and how the knowledge actually is applied by climate change adaptation planners and decision-makers. We observe that case-specific circumstances beyond the scope of the co-design process, including the decision-making context as well as non-tangible outcomes, also play crucial roles that should be accounted for in the knowledge assessment processes.
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| 3. |
- Ellkvist, Tommy, et al.
(författare)
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A First Study on Strategies for Generating Workflow Snippets
- 2009
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Ingår i: The first International Workshop on Keyword Search ob structured data KEYS 2009, Collocated with ACM SIGMOD/PODS. - New York, NY, USA : Association for Computing Machinery (ACM). - 9781605585703 ; , s. 15-20
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Konferensbidrag (refereegranskat)abstract
- Workflows are increasingly being used to specify computational tasks, from simulations and data analysis to the creation of Web mashups. Recently, a number of public workflow repositories have become available, for example, myExperiment for scientific workflows, and Yahoo! Pipes. Workflow collections are also commonplace in many scientific projects. Having such collections opens up new opportunities for knowledge sharing and re-use. But for this to become a reality, mechanisms are needed that help users explore these collections and locate useful workflows. Although there has been work on querying workflows, not much attention has been given to presenting query results. In this paper, we take a first look at the requirements for workflow snippets and study alternative techniques for deriving concise, yet informative snippets.
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| 4. |
- Ellkvist, Tommy, et al.
(författare)
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Using Mediation to Achieve Provenance Interoperability
- 2009
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Ingår i: 2009 Congress on Services - I. - : IEEE Press. - 9781424449309 ; , s. 291-298
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Konferensbidrag (refereegranskat)abstract
- Provenance is essential in scientific experiments. It contains information that is key to preserving the data, to determining their quality and authorship, and to reproduce as well as validate the results. In complex experiments and analyses, where multiple tools are used to derive data products, provenance captured by these tools must be combined in order to determine the complete lineage of the derived products. In this paper we describe a mediator-based architecture for integrating provenance information from multiple sources. This architecture contains two key components: a global mediated schema that is general and capable of representing provenance information represented in different model; and describe a new system-independent query API that is general and able to express complex queries over provenance information from different sources. We also present a case study where we show how this model was applied to integrate provenance from three provenance-enabled systems and discuss the issues involved in this integration process.
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| 5. |
- Ellqvist, Tommy, 1980-, et al.
(författare)
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Using Mediation to Achieve Provenance Interoperability
- 2008
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Ingår i: 2009 World Conference on Services - I. - : IEEE. - 9780769535357 - 9781424433803 ; , s. 398-399
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Konferensbidrag (refereegranskat)abstract
- Provenance is essential in scientific experiments. It contains information that is key to preserving the data and to determine its quality and uthorship. In complex experiments and analyses, where multiple tools are used to derive data products, provenance captured by these tools must be combined in order to determine the complete lineage of the derived products. We propose a mediator-based architecture to integrate provenance information from multiple sources, which contains two key components: a global mediated schema that is general and capable of representing provenance information represented in different models; and an expressive query interface that supports complex queries over provenance information spread over multiple different sources. We also present a case study where we show how this model was applied to integrate provenance from three provenance-enabled systems.
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| 6. |
- Gidhagen, Lars, et al.
(författare)
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Towards climate services for European cities : Lessons learnt from the Copernicus project Urban SIS
- 2020
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Ingår i: Urban Climate. - Amsterdam, Netherlands : Elsevier. - 2212-0955. ; 31
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Tidskriftsartikel (refereegranskat)abstract
- The growing share of Europe's population living in cities makes urban climate change impact assessment and adaptation a critical issue. The urban environment is characterized by its sensitivity to small-scale meteorological, hydrological and environmental processes. These are generally not fully described in climate models, largely because of the models' insufficient spatial resolution. The Urban SIS climate service offers historical and future simulated data downscaled to 1 km × 1 km resolution over selected European metropolitan areas. The downscaled data are subsequently used as input to air quality and hydrological impact models, all made available to users as Essential Climate Variables and Sectoral Impact Indicators through a web portal. This paper presents the Urban SIS climate service and demonstrates its functionality in a case study in Stockholm city, Sweden. Good model performance was attained for intra-city temperature gradients and small-scale precipitation extremes. Less positive results were obtained for large-scale precipitation and hydrology, mainly due to an insufficient domain size in the meteorological and climate modelling, in turn related to the substantial computational requirements. An uncertainty classification approach was developed to aid the interpretation and user application of the data. We hope our lessons learnt will support future efforts in this direction.
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| 7. |
- Hall, David, et al.
(författare)
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Generation of Synthetic XML for Evaluation of Hybrid XML Systems
- 2010
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Ingår i: Database Systems for Advanced Applications. - Heidelberg : Springer. - 9783642042041 ; , s. 191-202
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- This book constitutes the workshop proceedings of the 14th International Conference on Database Systems for Advanced Applications, DASFAA 2009, held in Brisbane, Australia, in April 2009. The volume contains six workshops, each focusing on specific research issues that contribute to the main themes of the DASFAA conference: The First International Workshop on Benchmarking of XML and Semantic Web Applications (BenchmarkX'09); The Second International Workshop on Managing Data Quality in Collaborative Information Systems (MCIS'09); The 1st International Workshop on Data and Process Provenance (WDPP'09); The First International Workshop on Privacy-Preserving Data Analysis (PPDA'09); The First International Workshop on Mobile Business Collaboration (MBC'09); and the First Ph.D. Workshop.
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| 8. |
- Ivanova, Valentina, et al.
(författare)
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Creating Infrastructure for Tool-Independent Querying and Exploration of Scientific Workflows
- 2011
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Ingår i: 7th IEEE International Conference on e-Science. - : IEEE. - 9781457721632 ; , s. 287-294
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Konferensbidrag (refereegranskat)abstract
- Many scientific experiments produce an enormous amount of data that needs to be explored. Scientific workflows and tools for managing workflows have been designed to streamline the computational processes that manipulate this data, from acquisition to analysis. However, the fact that each system has its own workflow format has greatly hampered efficient sharing and re-use. To address this problem, we propose a general model for workflows, based on OPM, which combines features from popular scientific workflow systems. We use this model to build infrastructure that supports system-agnostic workflow repositories. We describe the implementation of the infrastructure and present an experimental evaluation of its performance. We show that the proposed model and its implementation provide efficient support for queries over large repositories.
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| 9. |
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| 10. |
- Köhn, Dagmar, et al.
(författare)
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A method for Semi-automatic Standard Integration in Systems Biology
- 2008
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Ingår i: Database and Expert Systems Applications,2008. - Heidelberg, Germany : Springer. - 9783540856535 - 9783540856542 ; , s. 745-752
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Konferensbidrag (refereegranskat)abstract
- The development of standards for biological pathways has led to a huge amount of model data stored in a variety of different formats represented in XML (e. g. SBML) or OWL (e. g. BioPAX). As a result, there is an urgent need for the conversion of data between different formats, especially between XML and OWL data. The fact that that transformation is hard to realize hampers the integration of data in the area. Addressing this problem, the following article proposes a general, semi-automatic solution by suggesting the transformation of XML Schema based data into an OWL format. The general solution presented here will support biologists by offering them a way to query data of any format and as well compare different data files or schemas to each other using OWL as a common format for matching and providing a backwards transformation to XML Schema. The paper presents a first architectural approach and its prototype implementation. The evaluation showed that the approach is promising.
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