一种量化科研债务的指数
An index to quantify scientific debt
AI总结：
提出用\(z=\sum\limits_{i=1}^{n} \mathrm{IF}_{i}\)量化科研债务的指数，对比\(h\)指数，指出\(h - z\)能更平衡地评估科学价值。
AI中文摘要：
本文提出指数\(z\)，定义为\(z=\sum\limits_{i=1}^{n} \mathrm{IF}_{i}\)，其中\(\mathrm{IF}_{i}\)是第\(i\)篇撤回论文发表年份的期刊影响因子。\(h\)指数衡量科研成就，而\(z\)指数量化科研债务，\(h - z\)可更平衡地评估科学价值。
英文摘要：
I propose the index $z$, defined as $z=\sum\limits_{i=1}^{n} \mathrm{IF}_{i}$, where $\mathrm{IF}_{i}$ is the impact factor of the journal in the publication year of the $i$-th retracted paper. Whereas the $h$-index is a forward-looking measure of scientific achievement, the $z$-index quantifies scientific debt. The quantity $h-z$ may provide a more balanced assessment of scientific value.
