A new family of old Hirsch index variants

The Hirsch index h and the g index proposed by Egghe as well as the f index and the t index proposed by Tol are shown to be special cases of a family of Hirsch index variants, based on the generalized mean with exponent p. Inequalities between the different indices are derived from the generalized mean inequality. The graphical determination of the indices is shown for one example.     

A case study of the modified g index: Counting multi-author publications fractionally

The citation records of 26 physicists are analyzed in order to determine the modified g index g_m which takes multiple coauthorship into account by fractionalized counting of the publications. The results are compared with the original g index as well as with the h index and the respective modified h index h_m. Although the correlations between these indices are relatively strong, the arrangement of the datasets is significantly different in detail depending on whether they are put into order according to the values of either the original or the modified indices.     

Static to Dynamic: Professional Identity as Inventory,Invention, and Performance in Classrooms and Workplaces

Although self-assessment is an important genre in both the academy and the workplace, it is often static. The resulting fixed identities are problematic in a creative economy that requires fluidity. Drawing on the work of Carruthers and Goffman, among others, we argue that memory and meditation, encompassing inventory and invention and coupled with rhetorical performance, constitute dynamic self-assessment.     

A high resolution laser scanning model of the Roman theater in Pinara,Turkey – comparison to previous measurements and search for the causes of damage

The archaeological site Pinara, southwest Turkey, which includes several remarkable objects of cultural heritage, has been the focus of several previous archaeoseismic studies. One of these examined the setting of the Roman theater in the east of Pinara by a lidar survey. A gross inclination of the stone rows of the auditorium of 0.81° towards N 314°E was interpreted as a consequence of recent coseismic tectonic movements. A new survey of the theater with a terrestrial phase laser scanner is the basis for a model with 15 times higher resolution and 28 times more data points. Parallel to the fieldwork in this study, the process and accuracy of the leveling of the 3D point clouds produced by the scanner was tested in a series of experiments. Based on the orientation of the blocks forming the seats of the theater, we suggest six sections with changing average inclination of the seats and a fault line separating a northern and a southern section. While the previously found overall inclination of the auditorium is confirmed by the new model and the dip direction agrees, the inclination is 0.58° compared to previously determined 0.81°. The almost perfect increase of inclination with the height of the first 10 entire seating rows and the nearly constant inclination from row 11 onward, makes systematic measurement errors during the construction a possible cause. This is an alternative scenario to the interpretation of a coseismic displacement of the conglomerate block on which the theater was built.     

Characteristics of respondents who respond differently to positively and negatively worded items on rating scales

Although evidence prevails that including positively and negatively worded items within the same scale can lead to differential response patterns, little is known about factors that predict how different these responses will be. Thus, three datasets were analysed to investigate the characteristics of respondents whose responses between positively and negatively worded items are most different. The three studies yielded two major findings: (i) responses to the positively worded items yielded statistically significantly higher means than did responses to the negatively worded items, and (ii) several characteristics were identified pertaining to those who tend to have the largest absolute discrepancies in responses between the two sets of items.     

How relevant is the predictive power of the h-index? A case study of the time-dependent Hirsch index

The h-index has been shown to have predictive power. Here I report results of an empirical study showing that the increase of the h-index with time often depends for a long time on citations to rather old publications. This inert behavior of the h-index means that it is difficult to use it as a measure for predicting future scientific output.     

A modification of the h-index: The hm-index accounts for multi-authored manuscripts

In order to take multiple co-authorship appropriately into account, a straightforward modification of the Hirsch index was recently proposed. Fractionalised counting of the papers yields an appropriate measure which is called the h_m-index. The effect of this procedure is compared in the present work with other variants of the h-index and found to be superior to the fractionalised counting of citations and to the normalization of the h-index with the average number of authors in the h-core. Three fictitious examples for model cases and one empirical case are analysed.