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Lagoze, C.; Van de Sompel, H.: ¬The making of the Open Archives Initiative Protocol for Metadata Harvesting (2003)
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- Abstract
- The authors, who jointly serve as the Open Archives Initiative (OAI) executive, reflect an the three-year history of the OAI. Three years of technical work recently culminated in the release of a stabie production version 2 of the OAI Protocol for Metadata Harvesting (OAI-PMH). This technical product, the work that led up to it, and the process that made it possible have attracted some favor from the digital library and information community. The paper explores a number of factors in the history of the OAI that the authors believe have contributed to this positive response. The factors include focus an a defined problem Statement, an operational model in which strong leadership is balanced with solicited participation, a healthy dose of community building and Support, and sensible technical decisions.
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Johan Bollen, J.; Van de Sompel, H.: Usage impact factor : the effects of sample characteristics on usage-based impact metrics (2008)
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- Abstract
- There exist ample demonstrations that indicators of scholarly impact analogous to the citation-based ISI Impact Factor can be derived from usage data; however, so far, usage can practically be recorded only at the level of distinct information services. This leads to community-specific assessments of scholarly impact that are difficult to generalize to the global scholarly community. In contrast, the ISI Impact Factor is based on citation data and thereby represents the global community of scholarly authors. The objective of this study is to examine the effects of community characteristics on assessments of scholarly impact from usage. We define a journal Usage Impact Factor that mimics the definition of the Thomson Scientific ISI Impact Factor. Usage Impact Factor rankings are calculated on the basis of a large-scale usage dataset recorded by the linking servers of the California State University system from 2003 to 2005. The resulting journal rankings are then compared to the Thomson Scientific ISI Impact Factor that is used as a reference indicator of general impact. Our results indicate that the particular scientific and demographic characteristics of a discipline have a strong effect on resulting usage-based assessments of scholarly impact. In particular, we observed that as the number of graduate students and faculty increases in a particular discipline, Usage Impact Factor rankings will converge more strongly with the ISI Impact Factor.
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Sande, M. Vander; Verborgh, R.; Hochstenbach, P.; Van de Sompel, H.: Toward sustainable publishing and querying of distributed Linked Data archives (2018)
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- Abstract
- Purpose The purpose of this paper is to detail a low-cost, low-maintenance publishing strategy aimed at unlocking the value of Linked Data collections held by libraries, archives and museums (LAMs). Design/methodology/approach The shortcomings of commonly used Linked Data publishing approaches are identified, and the current lack of substantial collections of Linked Data exposed by LAMs is considered. To improve on the discussed status quo, a novel approach for publishing Linked Data is proposed and demonstrated by means of an archive of DBpedia versions, which is queried in combination with other Linked Data sources. Findings The authors show that the approach makes publishing Linked Data archives easy and affordable, and supports distributed querying without causing untenable load on the Linked Data sources. Research limitations/implications The proposed approach significantly lowers the barrier for publishing, maintaining, and making Linked Data collections queryable. As such, it offers the potential to substantially grow the distributed network of queryable Linked Data sources. Because the approach supports querying without causing unacceptable load on the sources, the queryable interfaces are expected to be more reliable, allowing them to become integral building blocks of robust applications that leverage distributed Linked Data sources. Originality/value The novel publishing strategy significantly lowers the technical and financial barriers that LAMs face when attempting to publish Linked Data collections. The proposed approach yields Linked Data sources that can reliably be queried, paving the way for applications that leverage distributed Linked Data sources through federated querying.
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Van de Sompel, H.: Thoughts about repositories, use, and re-use (2008)
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Van de Sompel, H.; Nelson, M.L.; Lagoze, C.; Warner, S.: Resource harvesting within the OAI-PMH framework (2004)
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Doerr, M.; Gradmann, S.; Hennicke, S.; Isaac, A.; Meghini, C.; Van de Sompel, H.: ¬The Europeana Data Model (EDM) (2010)
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Van de Sompel, H.; Young, J.A.; Hickey, T.B.: Using the OAI-PMH ... differently (2003)
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Van de Sompel, H.; Beit-Arie, O.: Generalizing the OpenURL framework beyond references to scholarly works : the Bison-Futé model (2001)
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Van de Sompel, H.; Hochstenbach, P.: Reference linking in a hybrid library environment : part 2: SFX, a generic linking solution (1999)
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Pepe, A.; Mayernik, M.; Borgman, C.L.; Van de Sompel, H.: From artifacts to aggregations : modeling scientific life cycles on the semantic Web (2010)
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Van de Sompel, H.; Hochstenbach, P.: Reference linking in a hybrid library environment : part 3: generalizing the SFX solution in the "SFX@Ghent & SFX@LANL" experiment (1999)
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Van de Sompel, H.; Hochstenbach, P.: Reference linking in a hybrid library environment : part 1: frameworks for linking (1999)
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