New seniority-independent Hirsch-type index
TL;DR: In this paper, the authors defined the following seniority-independent Hirsch-type index, which is suitable to compare the scientific output of scientists in different ages: a scientist has index hpd if hpd of his/her papers have at least hpd citations per decade each, and his/his other papers have less than hpd + 1 citations per 10 years each.
About: This article is published in Journal of Informetrics.The article was published on 2009-10-01. It has received 21 citations till now.
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01 Jan 2019
TL;DR: It is argued that ALIRP are mathematical models, and the numerical values they produce should never be confused with the reality they are trying to model in evaluation practice.
Abstract: The purpose of this chapter is to present a critical overview of author-level indicators of research production ( ), discuss their appropriate application and provide a tool to support the informed use of ALIRP. A brief history of the development of ALIRP begins with a chronological discussion of the major trends in indicator development, which documents the quick adaptation of ALIRP in evaluation practice, and consequently sets the argument for the need to monitor and evaluate present-day indicator production, which is the major theme of this chapter. The characteristics and common mathematical properties of ALIRP are used to highlight the challenges we face in applying appropriate ALIRP in evaluation. The construction and validity of 69 ALIRP are analyzed, and the results presented in table form for easy reference. These tables are also available as interactive tables provided as e-material to this chapter. This analysis, combined with the deconstruction of indicators in the chapter sections, argues that ALIRP are mathematical models, and the numerical values they produce should never be confused with the reality they are trying to model in evaluation practice.
10 citations
TL;DR: The h_int index reflects broad international recognition of a scientist, and prevents overrating of a citation record earned chiefly by self-citations or by citations received from a narrow circle of co-workers.
9 citations
Cites background from "New seniority-independent Hirsch-ty..."
...It favors old over young scientists (Kosmulski, 2009), gives undue credit to co-authors of multi-author papers (Della Sala & Brooks, 2008), and favors scientists working in certain fields (e.g., life sciences)....
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TL;DR: A new metric called `` t -index’’ is introduced in this paper using Shannon entropy and yearly average of h -index to solve the issue of domain based expert and performance analysis for a fair comparison among two institutes (or authors) rather than whole data sets.
7 citations
Posted Content•
TL;DR: The main objective of this article is to study all those indicators which have been proposed to evaluate the scientific impact of an individual researcher or a group of researchers.
Abstract: In recent years, several Scientometrics and Bibliometrics indicators were proposed to evaluate the scientific impact of individuals, institutions, colleges, universities and research teams. The h-index gives a major breakthrough in the research community to evaluate the scientific impact of an individual. It got a lot of attention due to its simplicity and several other indicators were proposed to extend the properties of h-index as well as to overcome shortcomings of h-index. In this literature review, we have discussed the advantages and limitations of almost all Scientometrics as well as Bibliometrics indicators which have been categorized into seven categories :(i) Complement of h-index, (ii) Based on total number of authors, (iii) Based on publication age, (iv) Combination of two indices, (v) Based on excess citation count, (vi) Based on total publication count, (vii) Based on other variants. The main objective of this article is to study all those indicators which have been proposed to evaluate the scientific impact of an individual researcher or a group of researchers.
6 citations
Cites background from "New seniority-independent Hirsch-ty..."
...Based on this concept Kosmulski (2009) proposed the h-index per decade (hpd): “The hpd-index of a scholar is hpd such that the hpd articles have at least hpd citation per decade (ACPD ≥ hpd) each.”...
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TL;DR: It is shown that the age-independent index based on h-type index per decade, called hereafter an α index instead of the a index, is related to the square-root of the ratio of citation acceleration a to the Hirsch constant A.
Abstract: It is shown that the age-independent index based on h-type index per decade, called hereafter an ? index instead of the a index, suggested by Kosmulski (Journal of Informetrics 3, 341---347, 2009) and Abt (Scientometrics 2012) is related to the square-root of the ratio of citation acceleration a to the Hirsch constant A.
5 citations
Cites background from "New seniority-independent Hirsch-ty..."
...…acceleration a to the Hirsch constant A. Keywords Age-independent index a Citation acceleration a Hirsch index h Hirsch constant A It is well known (Hirsch 2005; Anderson et al. 2008; Kosmulski 2009; Abt 2011) that the Hirsch index h of an author increases with his/her publication duration t....
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...…if the h index of an author is divided by the number of decades since the publication of his/her first paper, one obtains a statistically constant index which is independent of his/her age (Kosmulski 2009; Abt 2011), and (2) the accuracy of this index is the same as that of the h index (Abt 2011)....
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References
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TL;DR: The index h, defined as the number of papers with citation number ≥h, is proposed as a useful index to characterize the scientific output of a researcher.
Abstract: I propose the index h, defined as the number of papers with citation number ≥h, as a useful index to characterize the scientific output of a researcher.
8,996 citations
"New seniority-independent Hirsch-ty..." refers background in this paper
...The problem of h-index favoring old over young scientists has been recognized in the original paper by Hirsch (2005), who introduced the m quotient defined as h divided by the number of years passed since the first paper was published....
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...By analogy with the indices based on total numbers of citations (Hirsch, 2005), the following parameters for assessment of individuals can be proposed....
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TL;DR: The R- and AR-indices are introduced and it is proposed the pair (h, AR) as a meaningful indicator for research evaluation and a relation characterizing the h-index in the power law model is proved.
Abstract: Based on the foundation laid by the h -index we introduce and study the R - and AR -indices. These new indices eliminate some of the disadvantages of the h -index, especially when they are used in combination with the h -index. The R -index measures the h -core’s citation intensity, while AR goes one step further and takes the age of publications into account. This allows for an index that can actually increase and decrease over time. We propose the pair ( h , AR ) as a meaningful indicator for research evaluation. We further prove a relation characterizing the h -index in the power law model
588 citations
TL;DR: The first extensive measurement of the occurrence of Sleeping Beauties in the science literature is reported, derived from the measurements an ‘awakening’ probability function and identified the ‘most extreme Sleeping Beauty so far’.
Abstract: A 'Sleeping Beauty in Science' is a publication that goes unnoticed ('sleeps') for a long time and then, almost suddenly, attracts a lot of attention ('is awakened by a prince'). We here report the -to our knowledge- first extensive measurement of the occurrence of Sleeping Beauties in the science literature. We derived from the measurements an 'awakening' probability function and identified the 'most extreme Sleeping Beauty so far'.
466 citations
"New seniority-independent Hirsch-ty..." refers background in this paper
...Finally, very few papers (“sleeping beauties”; van Raan, 2004) were seldom cited in the first decade after publication, and more often cited in the second decade....
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01 Jan 2007
TL;DR: In this article, R-and AR-andAR-core are compared: R and AR-core, and AR and AR, respectively, in terms of their respective performance.
Abstract: 把 R-andAR 索引基于我们介绍并且学习的 h 索引打的基础。这些新索引消除一些 h 索引的劣势，特别当他们与 h 索引在联合被使用时。R 索引测量 h-core 的引证紧张，当 AR 去时进一步的一个步骤并且花出版物的很长时间进报道。这允许能实际上随着时间的过去增加并且减少的一个索引。我们建议对(h， AR ) 作为为研究评估的有意义的指示物。我们进一步证明尽最大努力描绘 h 索引的一种关系是法律模型。
402 citations
TL;DR: The effectiveness and the benefits of the new indices are exhibited to unfold the full potential of the h-index, with extensive experimental results obtained from the DBLP, a widely known on-line digital library.
Abstract: What is the value of a scientist and its impact upon the scientific thinking? How can we measure the prestige of a journal or a conference? The evaluation of the scientific work of a scientist and the estimation of the quality of a journal or conference has long attracted significant interest, due to the benefits by obtaining an unbiased and fair criterion. Although it appears to be simple, defining a quality metric is not an easy task. To overcome the disadvantages of the present metrics used for ranking scientists and journals, J. E. Hirsch proposed a pioneering metric, the now famous h-index. In this article we demonstrate several inefficiencies of this index and develop a pair of generalizations and effective variants of it to deal with scientist ranking and publication forum ranking. The new citation indices are able to disclose trendsetters in scientific research, as well as researchers that constantly shape their field with their influential work, no matter how old they are. We exhibit the effectiveness and the benefits of the new indices to unfold the full potential of the h-index, with extensive experimental results obtained from the DBLP, a widely known on-line digital library.
399 citations