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- Ahlgren, Per, et al.
(författare)
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Community Detection Using Citation Relations and Textual Similarities in a Large Set of PubMed Publications
- 2019
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Ingår i: PROCEEDINGS OF THE 17th INTERNATIONAL CONFERENCE ON SCIENTOMETRICS & INFORMETRICS. - Leuven : International Society for Scientometrics and Informetrics. - 9788833811185 ; , s. 1380-1392
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Konferensbidrag (refereegranskat)abstract
- In this contribution, the effects of enhancing direct citations, with respect to publication-publication relatedness measurement, by indirect citation relations (bibliographic coupling and co-citation) and text relations on clustering accuracy are analyzed. In total, we investigate six approaches. In one of these, direct citations are enhanced by both bibliographic coupling and co-citation, whereas text relations are used to enhance direct citations in another approach. In addition to an approach based on direct citations only, we include in the study, for comparison reasons, each approach that is involved in the enhancement of direct citations. For the evaluation of the approaches, we use a methodology proposed by earlier research. However, the used evaluation criterion is based on MeSH, arguable the most sophisticated item-level classification scheme available. The results show that the co-citation approach has the worst performance, and that the direct citations approach is outperformed by the other four investigated approaches. An approach in which direct citations are enhanced by the BM25 textual relatedness measure has the best performance, followed by the approach that combines direct citations with bibliographic coupling and co-citation. The latter performs slightly better than the bibliographic coupling approach, which in turn has a better performance than the BM25 approach.
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| 2. |
- Ahlgren, Per, et al.
(författare)
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Enhancing direct citations : A comparison of relatedness measures for community detection in a large set of PubMed publications
- 2020
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Ingår i: Quantitative Science Studies. - : MIT Press - Journals. - 2641-3337. ; 1:2, s. 714-729
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Tidskriftsartikel (refereegranskat)abstract
- The effects of enhancing direct citations, with respect to publication–publication relatednessmeasurement, by indirect citation relations (bibliographic coupling, cocitation, and extendeddirect citations) and text relations on clustering solution accuracy are analyzed. Forcomparison, we include each approach that is involved in the enhancement of direct citations.In total, we investigate the relative performance of seven approaches. To evaluate theapproaches we use a methodology proposed by earlier research. However, the evaluationcriterion used is based on MeSH, one of the most sophisticated publication-level classificationschemes available. We also introduce an approach, based on interpolated accuracy values,by which overall relative clustering solution accuracy can be studied. The results show thatthe cocitation approach has the worst performance, and that the direct citations approach isoutperformed by the other five investigated approaches. The extended direct citations approachhas the best performance, followed by an approach in which direct citations are enhancedby the BM25 textual relatedness measure. An approach that combines direct citations withbibliographic coupling and cocitation performs slightly better than the bibliographic couplingapproach, which in turn has a better performance than the BM25 approach.
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| 3. |
- Palmblad, Magnus, et al.
(författare)
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Capillary electrophoresis - A bibliometric analysis
- 2023
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Ingår i: TrAC. Trends in analytical chemistry. - : Elsevier. - 0165-9936 .- 1879-3142. ; 159
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Forskningsöversikt (refereegranskat)abstract
- We have explored the history of the field of capillary electrophoresis using bibliometric methods. The analysis shows that 416 prolific researchers are connected in a single, large, co-authorship network based on publications on capillary electrophoresis between 1980 and 2021, with a few pioneers having remained active throughout much of this time period. Looking at research topics revealed electro-chemistry, sensors, nanotechnology and metabolomics as 'hot' topics, with fundamental method development being more 'mature', and reveal that capillary electrophoresis technology have matured over a 30-year time period, with research efforts moving from separations to quantitative measurements to biomedical applications. The citation patterns showed the strongest coupling between journals of similar scope. Interactive versions of the bibliometric network visualizations are available on-line at https://tinyurl.com/2z7q7wcx (researcher co-authorship network), https://tinyurl.com/2jmhsgxx (research topic network) and https://tinyurl.com/2lnfzzgn (journal bibliographic coupling citation network).(c) 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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