The notion of ‘ranking dynamics’ was stablished in a previous work (García-Zorita et al. Rankings: competitiveness versus stability, STI International conference. Paris, 2017) where we include the... Show moreThe notion of ‘ranking dynamics’ was stablished in a previous work (García-Zorita et al. Rankings: competitiveness versus stability, STI International conference. Paris, 2017) where we include the study of rankings with ties, entrants and leavers. In this contribution, we generalize our method by taking the absolute difference in position between consecutive rankings into account. We introduced the concept of Relative Ranking Volatility (RRV) to normalizing the absolute volatility of a ranking using a factor who is defined in section 5. Finally, we show a real-example taken from the Web of Science / Journal Impact Factor for each IF-quartile distribution in the Information Sciences & Library Sciences category. Show less
One way of measuring interdisciplinarity is using the diversity of fields used in references. It is usually stated that diversity has three components: variety, balance or evenness and disparity or... Show moreOne way of measuring interdisciplinarity is using the diversity of fields used in references. It is usually stated that diversity has three components: variety, balance or evenness and disparity or its opposite: similarity. In this contribution we focus on the role of balance or evenness in the determination of diversity and reflect on the “monotonicity of balance” requirement.We conclude that one should take similarity (or disparity) between cells seriously and consider it to be at least as important as variety. Balance plays a minor role. Show less
