1,721,003 research outputs found
Score and rank semi-monotonicity for closeness, betweenness, and distance–decay centralities
Full text linkAmong the properties describing the behavior of centrality measures with respect to network modifications, score monotonicity means that adding an arc increases the centrality score of the target of the arc; rank monotonicity means that adding an arc improves the importance of the target with respect to the remaining nodes. It is known (Boldi and Vigna Intern Math 10:222–262, 2014, Boldi et al. Netw Sci 5(4):529–550, 2017) that score and rank monotonicity hold in directed graphs for almost all the classical centrality measures. In undirected graphs one expects that the corresponding properties hold when adding a new edge—in this case, both endpoints of the new edge should enjoy the increase in score/rank. However, recent results (Boldi et al. in Netw Sci 11(3):1–23, 2023) have shown that this is not true: for many centrality measures, it is possible to find situations in which adding an edge reduces the rank of one of its two endpoints. In this paper we introduce a weaker property for undirected networks, semi-monotonicity, in which just one of the two endpoints of a new edge is required to enjoy score or rank monotonicity. We show that this property is satisfied by closeness centrality, by a large class of distance-based centralities, and (somehow surprisingly) by betweenness centrality. In the last two cases, we prove in fact a stronger property, basin dominance, which is of independent interest
MS-BioGraphs MS
No full texthttps://blogs.qub.ac.uk/DIPSA/MS-BioGraphs/
Name
MS-BioGraphs – MS
URL
https://blogs.qub.ac.uk/DIPSA/MS-BioGraphs-MS
Graph Explanation
Vertices represent proteins and each edge represents the sequence similarity between its two endpoints
Edge Weighted
Yes
Directed
No
Number of Vertices
1,757,323,526
Number of Edges
2,488,069,027,875
Maximum Degree
814,957
Minimum Weight
98
Maximum Weight
634,925
Number of Zero-Degree Vertices
6,437,984
Average Degree
1,415.8
Size of The Largest WCC
2,486,890,448,664
Number of WCC
148,861,367
Creation Details
MS-BioGraphs: Sequency Similarity Graph Datasets
Format
WebGraph
License
CC BY-NC-SA
QUB IDF
2223-052
DOI
10.5281/zenodo.7820808
Citation
Koohi Esfahani, Mohsen, Boldi, Paolo,
Vandierendonck, Hans, Kilpatrick, Peter,
Vigna,Sebastiano. (2023).
MS-BioGraphs - MS.
https://doi.org/10.5281/zenodo.7820808.
http://blogs.qub.ac.uk/DIPSA/MS-BioGraphs-MS.
Bibtex
@misc{MS-BioGraphs-MS,
year = {2023},
author = {Mohsen Koohi Esfahani and Paolo Boldi and
Hans Vandierendonck and Peter Kilpatrick and
Sebastiano Vigna},
title = {{MS-BioGraphs - MS}},
doi = {10.5281/zenodo.7820808},
url = {http://blogs.qub.ac.uk/DIPSA/MS-BioGraphs-MS},
howpublished= {\url{http://blogs.qub.ac.uk/DIPSA/MS-BioGraphs-MS}}
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
BUbiNG: Massive Crawling for the Masses
No full textAlthough web crawlers have been around for twenty years by now, there is virtually no freely available, open-source crawling software that guarantees high throughput, over- comes the limits of single-machine tools and at the same time scales linearly with the amount of resources available. This paper aims at filling this gap
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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