Archives des mots-clés : scientific communication

What does ‘green’ open access mean? Tracking twelve years of changes to journal publisher selfarchiving policies

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Authors : Elizabeth Gadd, Denise Troll Covey

Traces the 12-year self-archiving policy journey of the original 107 publishers listed on the SHERPA/RoMEO Publisher Policy Database in 2004, through to 2015. Maps the RoMEO colour codes (‘green’, ‘blue’, ‘yellow’ and ‘white’) and related restrictions and conditions over time.

Finds that while the volume of publishers allowing some form of self-archiving (pre-print, post-print or both) has increased by 12% over the 12 years, the volume of restrictions around how, where and when self-archiving may take place has increased 119%, 190% and 1000% respectively.

A significant positive correlation was found between the increase in self-archiving restrictions and the introduction of Gold paid open access options. Suggests that by conveying only the version of a paper that authors may self-archive, the RoMEO colour codes do not address all the key elements of the Bethesda Definition of Open Access.

Compares the number of RoMEO ‘green’ publishers over time with those meeting the definition for ‘redefined green’ (allowing embargo-free deposit of the post-print in an institutional repository). Finds that RoMEO ‘green’ increased by 8% and ‘redefined green’ decreased by 35% over the 12 years.

Concludes that the RoMEO colour codes no longer convey a commitment to green open access as originally intended. Calls for open access advocates, funders, institutions and authors to redefine what ‘green’ means to better reflect a publisher’s commitment to self-archiving.

URL : https://works.bepress.com/denise_troll_covey/82/

Impact de l’Open Access sur les citations : une étude de cas

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Auteurs/Authors : Frédérique Bordignon, Mathieu Andro

De multiples études, dans la littérature internationale, ont cherché à évaluer l’impact de l’Open Access sur le taux de citation des articles scientifiques. La présente étude, en langue française, reste limitée aux publications 2010 de l’Ecole des Ponts.

Elle offre néanmoins un état de l’art des précédentes études sur le sujet à un lectorat de professionnels francophones et a pour originalité de mesurer le nombre moyen de citations par mois, avant et après “libération” Open Access des articles et d’éviter ainsi la plupart des biais qui peuvent être rencontrés dans ce type de démarche.

En plus de confirmer, comme beaucoup d’autres l’ont fait auparavant, un avantage net de l’Open Access sur le taux de citation en informatique, sciences de la terre et de l’univers, ingénierie, sciences environnementales, mathématiques, physique et astronomie, elle montre aussi qu’une « libération » précoce peut avoir un impact plus favorable qu’une « libération » tardive dans certains champs disciplinaires, comme les mathématiques et physique/astronomie.

URL : Impact de l’Open Access sur les citations : une étude de cas

The Authorship Dilemma: Alphabetical or Contribution?

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Authors : Margareta Ackerman, Simina Brânzei

Scientific communities have adopted different conventions for ordering authors on publications.

Are these choices inconsequential, or do they have significant influence on individual authors, the quality of the projects completed, and research communities at large? What are the trade-offs of using one convention over another?

In order to investigate these questions, we formulate a basic two-player game theoretic model, which already illustrates interesting phenomena that can occur in more realistic settings.

We find that alphabetical ordering can improve research quality, while contribution-based ordering leads to a denser collaboration network and a greater number of publications.

Contrary to the assumption that free riding is a weakness of the alphabetical ordering scheme, this phenomenon can occur under any contribution scheme, and the worst case occurs under contribution-based ordering.

Finally, we show how authors working on multiple projects can cooperate to attain optimal research quality and eliminate free riding given either contribution scheme.

URL : https://arxiv.org/abs/1208.3391

Measuring Scientific Impact Beyond Citation Counts

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Authors : Robert M. Patton, Christopher G. Stahl, Jack C. Wells

The measurement of scientific progress remains a significant challenge exasperated by the use of multiple different types of metrics that are often incorrectly used, overused, or even explicitly abused.

Several metrics such as h-index or journal impact factor (JIF) are often used as a means to assess whether an author, article, or journal creates an “impact” on science. Unfortunately, external forces can be used to manipulate these metrics thereby diluting the value of their intended, original purpose.

This work highlights these issues and the need to more clearly define “impact” as well as emphasize the need for better metrics that leverage full content analysis of publications.

URL : http://www.dlib.org/dlib/september16/patton/09patton.html

Linking Behavior in the PER Coauthorship Network

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Authors : Katharine A. Anderson, Matthew Crespi, Eleanor C. Sayre

There is considerable long-term interest in understanding the dynamics of collaboration networks, and how these networks form and evolve over time. Most of the work done on the dynamics of social networks focuses on well-established communities.

Work examining emerging social networks is rarer, simply because data is difficult to obtain in real time. In this paper, we use thirty years of data from an emerging scientific community to look at that crucial early stage in the development of a social network.

We show that when the field is very young, islands of individual researchers labored in relative isolation, and the co authorship network is disconnected. Thirty years later, rather than a cluster of individuals, we find a true collaborative community, bound together by a robust collaboration network.

However, this change did not take place gradually — the network remained a loose assortment of isolated individuals until the mid-2000s, when those smaller parts suddenly knit themselves together into a single whole.

In the rest of this paper, we consider the role of three factors in these observed structural changes: growth, changes in social norms, and the introduction of institutions such as field-specific conferences and journals.

We have data from the very earliest years of the field, and thus are able to observe the introduction of two different institutions: the first field-specific conference, and the first field-specific journals.

We also identify two relevant behavioral shifts: a discrete increase in co authorship coincident with the first conference, and a shift among established authors away from collaborating with outsiders, towards collaborating with each other. The interaction of these factors gives us insight into the formation of collaboration networks more broadly.

URL : https://arxiv.org/abs/1609.09339

How subscription-based scholarly journals can convert to open access: A review of approaches

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Authors : Mikael Laakso, David Solomon, Bo-Christer Björk

This article reviews the ways through which subscription-based scholarly journals have converted to open access. The methodology included a comprehensive literature review of both published and ‘grey’ literature, such as blog posts and press releases.

Eight interviews were also conducted with stakeholders representing different parts of the scholarly publishing landscape. Strategies of conversion for different types of journals are presented at multiple levels (publishers, national, research funders, organizational, and so on).

The identified scenarios are split into two main categories, those that rely heavily on article processing charges and those that can operate without relying on author-side financing.

Despite there being interesting and important shared traits among many converted journals, individual circumstances largely dictate what options for conversion are viable for a journal. There is no single solution that works for every journal but rather a broad selection of different solutions, among which selection should be well informed.

URL : How subscription-based scholarly journals can convert to open access: A review of approaches

Alternative location : http://onlinelibrary.wiley.com/doi/10.1002/leap.1056/full

Patterns of authors contribution in scientific manuscripts

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Authors : Edilson A. Corrêa Jr., Filipi N. Silv, Luciano da F. Costa, Diego R. Amancio

Science is becoming increasingly more interdisciplinary, giving rise to more diversity in the areas of expertise within research labs and groups. This also have brought changes to the role researchers in scientific works. As a consequence, multi-authored scientific papers have now became a norm for high quality research.

Unfortunately, such a phenomenon induces bias to existing metrics employed to evaluate the productivity and success of researchers. While some metrics were adapted to account for the rank of authors in a paper, many journals are now requiring a description of the specific roles of each author in a publication.

Surprisingly, the investigation of the relationship between the rank of authors and their contributions has been limited to a few studies. By analyzing such kind of data, here we show, quantitatively, that the regularity in the authorship contributions decreases with the number of authors in a paper.

Furthermore, we found that the rank of authors and their roles in papers follows three general patterns according to the nature of their contributions, such as writing, data analysis, and the conduction of experiments.

This was accomplished by collecting and analyzing the data retrieved from PLoS ONE and by devising an entropy-based measurement to quantify the effective number of authors in a paper according to their contributions.

The analysis of such patterns confirms that some aspects of the author ranking are in accordance with the expected convention, such as the fact that the first and last authors are more likely to contribute more in a scientific work.

Conversely, such analysis also revealed that authors in the intermediary positions of the rank contribute more in certain specific roles, such as the task of collecting data.

This indicates that the an unbiased evaluation of researchers must take into account the distinct types of scientific contributions.

URL : https://arxiv.org/abs/1609.05545