| 1. |
- Börjesson, Lisa, 1985-, et al.
(författare)
-
Re-purposing Excavation Database Content as Paradata : An Explorative Analysis of Paradata Identification Challenges and Opportunities
- 2022
-
Ingår i: KULA: Knowledge Creation, Dissemination, and Preservation Studies. - : University of Victoria Libraries. - 2398-4112. ; 6:3, s. 1-18
-
Tidskriftsartikel (refereegranskat)abstract
- Although data reusers request information about how research data was created and curated, this information is often non-existent or only briefly covered in data descriptions. The need for such contextual information is particularly critical in fields like archaeology, where old legacy data created during different time periods and through varying methodological framings and fieldwork documentation practices retains its value as an important information source. This article explores the presence of contextual information in archaeological data with a specific focus on data provenance and processing information, i.e., paradata. The purpose of the article is to identify and explicate types of paradata in field observation documentation. The method used is an explorative close reading of field data from an archaeological excavation enriched with geographical metadata. The analysis covers technical and epistemological challenges and opportunities in paradata identification, and discusses the possibility of using identified paradata in data descriptions and for data reliability assessments. Results show that it is possible to identify both knowledge organisation paradata (KOP) relating to data structuring and knowledge-making paradata (KMP) relating to fieldwork methods and interpretative processes. However, while the data contains many traces of the research process, there is an uneven and, in some categories, low level of structure and systematicity that complicates automated metadata and paradata identification and extraction. The results show a need to broaden the understanding of how structure and systematicity are used and how they impact research data in archaeology and in comparable field sciences. The insights into how a dataset’s KOP and KMP can be read is also a methodological contribution to data literacy research and practice development. On a repository level, the results underline the need to include paradata about dataset creation, purpose, terminology, dataset internal and external relations, and eventual data colloquialisms that require explanation to reusers.
|
|
| 2. |
- Friberg, Zanna, et al.
(författare)
-
Using object biographies to understand the curation crisis : lessons learned from the museum life of an archaeological collection
- 2019
-
Ingår i: Museum Management and Curatorship. - : ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD. - 0964-7775 .- 1872-9185. ; 34:4, s. 362-382
-
Tidskriftsartikel (refereegranskat)abstract
- The challenges related to the management of an increasing number of often poorly documented orphaned archaeological museum collections, described in literature as a 'curation crisis', are growing. This article proposes that writing collection-level object biographies (referring to the notion of Kopytoff) provides a means to generate useful insights into the longue duree of curatorial processes and to understand how curation crises emerge, how to avoid them, and how to manage orphaned, poorly documented and unorganised collections. The potential of using object biographies as a means to tackle the curation crisis is demonstrated through a study of the life history of the Valsgarde collection housed at Gustavianum - Uppsala University Museum relating to a well-known and often-cited archaeological site with the same name. It traces the management and use of the collection and scrutinises the causes and consequences of the problems of curating and making available archaeological collections.
|
|
| 3. |
- Liu, Ying-Hsang, et al.
(författare)
-
Conceptualizing Data Needs within Contexts of Data Discoverability and Reuse : A Study of Environmental and Social Scientists
- 2023
-
Ingår i: IST23 Conference. - : Association for Information Science & Technology.
-
Konferensbidrag (refereegranskat)abstract
- This study contributes to the conference theme of information science processes and practices by examining the research data discovery contexts of ecological and social scientists who reuse datasets for research. The aim of the research was to gain insight into the data discovery contexts of these scientists and to understand the data needs related to data discoverability and reuse. The study identified four dimensions of data needs, including research processes, making sense of data, data reuse, and data access. Additionally, a conceptualization of data needs within the context of data reuse was proposed, which has not been thoroughly examined in previous studies. The study employed a mixed-method approach within the post-positivist research paradigm to identify the different contexts in which data is discovered. A combination of survey and in-depth interview techniques were used to investigate the broader contexts of data discovery in people’s information-seeking processes. The critical incident technique was used to elicit the contexts of data discovery, and the interview protocol was structured based on the stages of a data lifecycle. Interviews were conducted with 24 participants from three organizations, including TERN, ADA, and CSIRO. Participants held diverse job roles and were at different career stages. The study identified four dimensions of data needs and examined their relationship with the roles of data managers and end-users. The findings contribute to the existing literature on data needs and emphasize the potential usefulness of research data and the need for paradata. The study also suggests that anticipating the contexts of data reuse involves considering what data users may find useful. Ensuring data quality is crucial for successful data reuse, which involves having access to organizational data expertise, providing data in various formats and platforms, and ensuring sufficient data coverage. Data needs are influenced by the specific research objectives, which in turn affects the criteria for selecting and reusing data. Clear data licensing conditions are crucial to facilitate data reuse.
|
|
| 4. |
- Porth, Oliver, et al.
(författare)
-
The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project
- 2019
-
Ingår i: Astrophysical Journal, Supplement Series. - : American Astronomical Society. - 1538-4365 .- 0067-0049. ; 243:2
-
Tidskriftsartikel (refereegranskat)abstract
- Recent developments in compact object astrophysics, especially the discovery of merging neutron stars by LIGO, the imaging of the black hole in M87 by the Event Horizon Telescope, and high- precision astrometry of the Galactic Center at close to the event horizon scale by the GRAVITY experiment motivate the development of numerical source models that solve the equations of general relativistic magnetohydrodynamics (GRMHD). Here we compare GRMHD solutions for the evolution of a magnetized accretion flow where turbulence is promoted by the magnetorotational instability from a set of nine GRMHD codes: Athena++, BHAC, Cosmos++, ECHO, H-AMR, iharm3D, HARM-Noble, IllinoisGRMHD, and KORAL. Agreement among the codes improves as resolution increases, as measured by a consistently applied, specially developed set of code performance metrics. We conclude that the community of GRMHD codes is mature, capable, and consistent on these test problems.
|
|
