Do Impact Factors change with a change of medium? A comparison of Impact                Factors when publication is by paper and through parallel publishing

Shin, Eun-Ja

doi:10.1177/0165551503296009

Cited by 23 publications

(19 citation statements)

References 8 publications

(9 reference statements)

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“…We sought to determine the half‐life of Web citations in a set of three leading and widely available IS journals ( IP&M , JASIST , and JDoc ) as well as investigate characteristics of links that might be associated with link decay. Shin (2003) found that the impact factor of journals increased when they became available in electronic formats. This suggests that the popularity of Web citations will not wane any time soon and that there are incentives to make scholarly material available online.…”

Section: Resultsmentioning

confidence: 99%

Link decay in leading information science journals

Goh

2006

J. Am. Soc. Inf. Sci.

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Web citations have become common in scholarly publications as the amount of online literature increases. Yet, such links are not persistent and many decay over time, causing accessibility problems for readers. The present study investigates the link decay phenomenon in three leading information science journals. Articles spanning a period of 7 years (1997-2003) were downloaded, and their links were extracted. From these, a measure of link decay, the half-life, was computed to be approximately 5 years, which compares favorably against other disciplines (1.4-4.8 years). The study also investigated types of link accessibility errors encountered as well as examined characteristics of links that may be associated with decay. It was found that approximately 31% of all citations were not accessible during the time of testing, and the majority of errors were due to missing content (HTTP Error Code 404). Citations from the edu domain were also found to have the highest failure rates of 36% when compared with other popular top-level domains. Results indicate that link decay is a problem that cannot be ignored, and implications for journal authors and readers are discussed.

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Section: Resultsmentioning

confidence: 99%

Link decay in leading information science journals

Goh

2006

J. Am. Soc. Inf. Sci.

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“…The next natural step was been to seek evidence for the impact of OA publishing using existing bibliometric techniques [as described in 4] and researchers showed that online availability of articles was associated with higher citation counts in several subject areas [18,19,20,21,22]. The increasing number of OA journals indexed in the Institute for Scientific Information (ISI) citation databases * , not only indicates their acceptance as a valid outlet for publishing scientific papers, but also encouraged researchers to use ISI citations as a measure of assessment [23] or to compare OA and non-OA journals impact across many disciplines [24].…”

Section: Introductionmentioning

confidence: 99%

Google Scholar citations and Google Web/URL citations: A multi‐discipline exploratory analysis

Kousha¹,

Thelwall²

2007

J. Am. Soc. Inf. Sci.

201

146

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In this paper we introduce a new data gathering method "Web/URL Citation" and use it and Google Scholar as a basis to compare traditional and Web-based citation patterns across multiple disciplines. For this, we built a sample of 1,650 articles from 108 Open Access (OA) journals published in 2001 in four science and four social science disciplines. We recorded the number of citations to the sample articles using several methods based upon the ISI Web of Science, Google Scholar and the Google search engine (Web/URL citations). For each discipline, we found significant correlations between ISI citations and both Google Scholar and Google Web/URL citations; with similar results when using total or average citations, and when comparing within and across (most) journals. We also investigated disciplinary differences. Google Scholar citations were more numerous than ISI citations in our four social science disciplines as well as in computer science, suggesting that Google Scholar is a more comprehensive tool for citation tracking in the social sciences and perhaps also in fast-moving fields where conference papers are highly valued and published online. The results for Web/URL citations suggested that counting a maximum of one hit per site produces a better measure for assessing the impact of OA journals or articles, because replicated web citations are very common within individual sites. The results can be considered as additional evidence that there is some commonality between traditional and Web-extracted citations.

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“…• the investigation the impact of OA and non-OA journals (26-36); • the comparison of the citation rates before and after journal articles are made openly available (34,37-41); • the comparison of the journal's impact factor between OA and subscription journals (16,34,(42)(43)(44)(45)(46)(47)(48)(49)(50).…”

Section: Studies On the Investigations Of The Citation Performance Ofmentioning

confidence: 99%

The impact of open access on the medical literature: a review of current literature

Turk¹

2017

SlovMedJour

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IzvlečekIzhodišča: Namen članka je podati pregled vpliva odprtega dostopa na znanstvene objave v medicini glede na tri kategorije: citiranost, vidnost in omembe v socialnih medijih.Metode: Podatke smo pridobili z iskalno strategijo, ki je vsebovala ključne besede, kot so "open access", "citation impact", "citation advantage", "citations count", "article download", "article usage", "social media attention" in "altmetrics".Rezultati: Z iskalno strategijo, ki smo jo uporabili v treh zbirkah podatkov, smo pridobili stosedem člankov, primernih za analizo. V sedeminšestdesetih člankih izmed teh se uporablja enostavna metodologija štetja citatov odprtodostopnih člankov in člankov iz naročniških revij, v devetnajst člankih se primerja število citatov in vpogledov, v enaindvajsetih člankih se raziskujejo omembe v socialnih medijih. Od tega je petindvajset člankov medicinskih, v katerih se obravnava vpliv vseh navedenih kategorij.Zaključki: V sedeminšestdesetih člankih izmed teh se uporablja enostavna metodologija štetja citatov odprtodostopnih člankov in člankov iz naročniških revij, v devetnajst člankih se primerja število citatov in vpogledov, v enaindvajsetih člankih se raziskujejo omembe v socialnih medijih. Od tega je petindvajset člankov medicinskih, v katerih se obravnava vpliv vseh navedenih kategorij. AbstractBackground: The aim of the article is to conduct an overview of the impact of OA on the medical articles based on 3-part categorization.Methods: Data were identified by a search strategy with eight combinations of keywords (open access, citation impact, citation advantage, citation count, article download, article usage, social media attention, altmetrics) and searched in three different databases. Results:The analysis was conducted on 107 studies dealing with citations, downloads and social impact. Sixty-seven of them simply employed the counting citations to OA and non-OA articles; nineteen articles compared the downloads and citations counts; and twenty-one articles investigated the social impact of OA articles. Twenty-five articles investigated the citations, download counts, and social impact of medical articles. Conclusions:The studies investigating the citation impact mostly showed citation advantages. Those that employed citation and download counts of medical articles using randomized controlled trials showed that OA articles were downloaded significantly more frequently, but found no evidence

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Do Impact Factors change with a change of medium? A comparison of Impact Factors when publication is by paper and through parallel publishing

Cited by 23 publications

References 8 publications

Link decay in leading information science journals

Link decay in leading information science journals

Google Scholar citations and Google Web/URL citations: A multi‐discipline exploratory analysis

The impact of open access on the medical literature: a review of current literature

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