One California institution, for example, has a point system for promotion and tenure: Article length and a numerical "quality" rating of the journal are entered into a formula to produce a score that helps determine tenure, promotion, and merit raises.
Using formulas modeled from journal impact factor (JIF) calculations, conference impact factor (CIF) estimates were developed.
Although these formulas have become widely used, Morey (Journal of Mathematical Psychology, 55, 8 24, 2011) showed that the formulas suffer from a number of issues, including inefficient use of information, bias, volatility, uninterpretable parameter estimates, and violation of ANOVA assumptions.
The conference formula is refreshingly simple: Walt Mossberg, the Journal's tech guru, and Kara Swisher, his co-executive, sit down and interview an industry notable (or sometimes two).
In his model, described in the April issue of the journal Geology, Dr. Pelletier uses a type of mathematical formula known as a reaction-diffusion equation.
Pink = molecule; red = journal reference; light green = physical quanity; turquoise = formula; orange = colorstate; blue = NMR.
15 The SMImago journal and country rank is calculated with a similar formula and is very strongly correlated with the journal citation report ranking.
7 This ranking is calculated using a similar formula and is strongly correlated with the journal citation impact factor.
26 This ranking is calculated with a similar formula and is strongly correlated with the journal citation impact factor.
As this particular journal has published three papers associated with the sequences, the formula should emphasize this fact by assigning the weight 2 to this factor in detriment of a journal that has, for example zero papers published.
