scholarly journals Recency predicts bursts in the evolution of author citations

2020 ◽  
Vol 1 (3) ◽  
pp. 1298-1308
Author(s):  
Filipi Nascimento Silva ◽  
Aditya Tandon ◽  
Diego Raphael Amancio ◽  
Alessandro Flammini ◽  
Filippo Menczer ◽  
...  

The citations process for scientific papers has been studied extensively. But while the citations accrued by authors are the sum of the citations of their papers, translating the dynamics of citation accumulation from the paper to the author level is not trivial. Here we conduct a systematic study of the evolution of author citations, and in particular their bursty dynamics. We find empirical evidence of a correlation between the number of citations most recently accrued by an author and the number of citations they receive in the future. Using a simple model where the probability for an author to receive new citations depends only on the number of citations collected in the previous 12–24 months, we are able to reproduce both the citation and burst size distributions of authors across multiple decades.

2017 ◽  
Vol 12 (1) ◽  
pp. 101-121 ◽  
Author(s):  
Nathan Falk ◽  
Kenneth Train

AbstractPatents without established market values (e. g., no negotiated royalty rates) are often valued by comparing the number of citations the patent has received to the numbers received by other patents whose market values are established. For recently-issued patents, which have not had time to accumulate citations, this procedure can be noisy or even inapplicable. The current paper generalizes this valuation method to incorporate patent characteristics that relate to the number of citations the patent is expected to obtain in the future. We estimate statistical models in which the explanatory variables are observable characteristics of the patent at a given time, and the dependent variable is the number of citations that the patent receives after that date. Using several examples, we demonstrate a procedure for patent valuation that incorporates the statistical results, such that the valuation reflects the number of citations the patent has already received as well as the number it is expected, based on its characteristics, to receive in the future.


2018 ◽  
Vol 75 (3) ◽  
pp. 391-398
Author(s):  
Philip G. Ziegler

Over several decades during the second half of the last century, the Romanian-born Parisian intellectual E. M. Cioran penned a series of uneasy works whose despondent obsession with God is matched only by their utter disavowal of the reality of the divine. Wrestling pessimistically with nihilism in a world forged by chronic insomnia, illness, nicotine, and despair, Cioran confronts the theologian with a particularly radical articulation of unbelief hard-won at the “verge of existence,” and existence suffered as an “accident of God.” This short article explores the form and substance of Cioran’s biting and aphoristic expression of modern unbelief in an attempt to discern something of its theological significance. Perhaps theology would do well to receive this work as a necessary ascesis of its inapt and faithless contentment and ease with the world. And could it be that theology stands to be schooled in the near impossibility and profundity of hope by the cynicist’s surprising confession that, “Each time the future seems conceivable to me, I have the impression of being visited by Grace”?


2012 ◽  
Vol 61 (1) ◽  
Author(s):  
José Luis Pérez Requejo ◽  
Justo Aznar Lucea

Mai prima d’ora i pazienti gravemente malati o con malattie incurabili o croniche, sono stati così esposti a organizzazioni mediche senza scrupoli, che approfittando del loro logico disagio e della loro preoccupazione promettono cure miracolose e trattamenti, facendo pagare enormi somme di denaro per procedure senza alcuna garanzia, alcun reale beneficio e, peggio ancora, con gravi rischi per la salute. Questo articolo discute alcuni casi di pazienti che hanno pagato con la loro salute, spesso irrimediabilmente, o in maniera catastrofica, gli effetti di terapie teoricamente avanzate con cellule staminali di alcuni centri. Ci si è riferiti a diversi paesi che, in tempi anche non remoti, offrono e praticano qualcuno di questi trattamenti, il più delle volte attraverso strategie di marketing dirette e aggressive per i pazienti o le loro famiglie, mostrando reale o fittizi rapporti relativi ad altri pazienti, ma senza previ studi scientifici che avvalorino i risultati dei presunti benefici. In questo articolo, discutiamo alcuni utili suggerimenti e linee guida internazionali per riconoscerli ed evitarli. Inoltre, abbiamo discusso in dettaglio le ragioni specifiche per cui la maggior parte dei medici e clinici sollevino dei dubbi sulla competenza e le ragioni etiche di questi centri e scoraggino i viaggi di questo “turismo medico”. È sempre consigliabile chiedere il consiglio del medico di famiglia o specialista, prima della decisione dei pazienti di ricevere trattamenti dubbi, con la certezza che il paziente avrà sempre la sua comprensione e il supporto emotivo e medico. ---------- Never before seriously ill patients with chronic or incurable diseases have been so exposed to unscrupulous medical organizations that, taking advantage of their logical distress and worry, promise miracle cures and treatments and charge them huge amounts of money for procedures with no guarantee, no real benefits and, even worse, with serious risks to their health. This paper discusses some cases of patients who paid with their health, often irreparably, or catastrophically, the effects of supposedly advanced therapy centers with stem cells. Several countries are mentioned, not always as remote, which offer and practice any of these treatments, most often by direct and aggressive marketing to patients or their families, showing real or fictional accounts of other patients, but without the previous studies and scientific papers that endorse their supposed beneficial results. In this article we discuss some useful hints and international guidelines to recognize and avoid them. Also, we discussed in detail the specific reasons why most doctors and clinics doubt about the competence and ethical reasons of these centers and discourage those “medical tourism” trips. It is always advisable to seek the advice of the family doctor or specialist in charge, before the patients decision to receive dubious treatments, with the assurance that, decide what the patient decide, they will have always his understanding and his emotional and medical support.


2003 ◽  
Vol 19 (6) ◽  
pp. 1847-1862 ◽  
Author(s):  
Miquel Porta ◽  
José L. Copete ◽  
Esteve Fernandez ◽  
Joan Alguacil ◽  
Janeth Murillo

News of the death of biomedical journals seem premature. Revamped traditional scientific journals remain highly valued sources and vehicles of information, critical debate, and knowledge. Some analyses seem to place a disproportionate emphasis on technological and formal issues, as compared to the importance ascribed to matters of power. Not all journals must necessarily have a large circulation. There are many examples of efficient, high-quality journals with a great impact on relatively small audiences for whom the journal is thought-provoking, useful, and pleasant to read. How can we achieve a better understanding of an article’s spectrum of impacts? A certain mixing of three distinct entities (journals, articles, and authors) has often pervaded judgments. Data used by the Institute for Scientific Information present weaknesses in their accuracy. The two-year limit for citations to count towards the bibliographic impact factor favors "fast-moving", "basic" biomedical disciplines and is less appropriate for public health studies. Increasing attention is given to the specific number of citations received by each individual article. It is possible to make progress towards more valid, accurate, fair, and relevant assessments.


2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Anton Grobler ◽  
Aden-Paul Flotman

Purpose: This is an era of unprecedented turbulence. The current coronavirus disease 2019 (Covid-19) global pandemic testifies to this turmoil as, daily, the unknown dynamically unfolds. It is important during challenging times like these that leadership and organisational response enhance a shared positive vision for the future of humanity. This study aimed at determining the role played by servant leadership (SL) in promoting employee well-being, specifically, a positive future expectation in terms of hope and optimism (HO), as well as the impact that team-based learning (TBL) has on this relationship, and whether this is the same for both the private and public sectors.Design/methodology/approach: This study employed an empirical paradigm, using a cross-sectional design and quantitative analysis. The total sample consisted of 1560 participants, with 780 employed in the private and public sector, respectively.Findings/results: The results suggest that both SL and TBL have a significant impact on employees’ HO, with TBL being a mediating variable and with stronger relationships reported for the private sector. Technically, the TBL instrument employed was validated for South African use and the study included a statistical assessment of common method bias, which was found not to skew the results.Practical implications: This study provides further empirical evidence that SL is positively associated with HO. Secondly, the future-mindedness and future-orientation of HO could stimulate adaptive responses during this time of uncertainty and turmoil. Thus, HO, as potential resilience factors, could generate resilience by harnessing opportunities and setbacks both during the Covid-19 pandemic and in its aftermath.Originality/value: The practical value of this article is in the empirical evidence that both the leaders and the organisation have an impact on the employees’ wellness and positive work attitudes.


Author(s):  
Taha Yasseri ◽  
Jannie Reher

AbstractThrough a large-scale online field experiment, we provide new empirical evidence for the presence of the anchoring bias in people’s judgement due to irrational reliance on a piece of information that they are initially given. The comparison of the anchoring stimuli and respective responses across different tasks reveals a positive, yet complex relationship between the anchors and the bias in participants’ predictions of the outcomes of events in the future. Participants in the treatment group were equally susceptible to the anchors regardless of their level of engagement, previous performance, or gender. Given the strong and ubiquitous influence of anchors quantified here, we should take great care to closely monitor and regulate the distribution of information online to facilitate less biased decision making.


2003 ◽  
Vol 19 ◽  
pp. 11-23 ◽  
Author(s):  
R. I. Brafman ◽  
M. Tennenholtz

In common-interest stochastic games all players receive an identical payoff. Players participating in such games must learn to coordinate with each other in order to receive the highest-possible value. A number of reinforcement learning algorithms have been proposed for this problem, and some have been shown to converge to good solutions in the limit. In this paper we show that using very simple model-based algorithms, much better (i.e., polynomial) convergence rates can be attained. Moreover, our model-based algorithms are guaranteed to converge to the optimal value, unlike many of the existing algorithms.


Author(s):  
Curtis Forbes

The debate over scientific realism, simply put, is a debate over what we can and should believe about reality once we've critically assessed all the available arguments and empirical evidence. Thinking earnestly about the merits of scientific realism as a philosophical thesis requires navigating contentious historiographical issues, being familiar with the technical details of various scientific theories, and addressing disparate philosophical problems spanning aesthetics, metaphysics, epistemology, and beyond. This issue of Spontaneous Generations: A Journal for the History and Philosophy of Science aims to make participating in the scientific realism debate easier for both newcomers and veterans, collecting over twenty invited and peer-reviewed papers under the title "The Future of the Scientific Realism Debate: Contemporary Issues Concerning Scientific Realism."


2021 ◽  
Vol 336 ◽  
pp. 06013
Author(s):  
Jizhaxi Dao ◽  
Zhijie Cai ◽  
Rangzhuoma Cai ◽  
Maocuo San ◽  
Mabao Ban

Corpus serves as an indispensable ingredient for statistical NLP research and real-world applications, therefore corpus construction method has a direct impact on various downstream tasks. This paper proposes a method to construct Tibetan text classification corpus based on a syllable-level processing technique which we refer as TC_TCCNL. Empirical evidence indicates that the algorithm is able to produce a promising performance, which may lay a starting point for research on Tibetan text classification in the future.


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