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基于引文全文本特征的论文颠覆性指数改进研究
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作者 黄恒 汪雪锋 +1 位作者 朱东华 雷鸣 《图书情报工作》 CSSCI 北大核心 2024年第15期15-26,共12页
[目的/意义]针对论文颠覆性指数受参考文献数量及其重要程度差异的影响问题,改进颠覆性指数算法,以便更有效地区分突破性论文和其他高被引论文,科学合理地反映论文的突破性。[方法/过程]结合参考文献在焦点论文全文中对应的引文内容的... [目的/意义]针对论文颠覆性指数受参考文献数量及其重要程度差异的影响问题,改进颠覆性指数算法,以便更有效地区分突破性论文和其他高被引论文,科学合理地反映论文的突破性。[方法/过程]结合参考文献在焦点论文全文中对应的引文内容的全文本特征——引文目的和引文极性,筛选出在研究内容上与焦点论文相关的重要参考文献,围绕重要参考文献,修改颠覆性指数计算公式分子和分母,进而改进论文颠覆性指数。[结果/结论]研究发现,改进后的颠覆性指数使突破性论文更显著地区分于其他高被引论文;利用改进后的颠覆性指数,可从批量的高被引论文中准确识别更多的突破性论文。 展开更多
关键词 颠覆性指数 引文目的 引文极性 曼—惠特尼U检验 K-S检验
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An innovative method to evaluate the severe level of general Qi deficiency
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作者 Lu Yu Niu Tingli +6 位作者 Chen Tianyu Gao Lujiao Ma Liangxiao Li Haiyan Zhu Qingwen Yang Xuezhi Niu Xin 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2018年第4期585-592,共8页
OBJECTIVE:The study aim was to use existing relevant indexes to establish an index series for the quantitative measurement of Qi deficiency pattern(QDP) in Traditional Chinese Medicine(TCM).METHODS:Seventeen indexes o... OBJECTIVE:The study aim was to use existing relevant indexes to establish an index series for the quantitative measurement of Qi deficiency pattern(QDP) in Traditional Chinese Medicine(TCM).METHODS:Seventeen indexes of arterial oxygen saturation(SaO_2),TCM pulse diagnosis,heart rate,and blood pressure were integrated into an index series,and 94 selected subjects were divided into a healthy control group,a mild QDP group,and a typical QDP group.All three groups were then synchronously given a breath-holding(BH) test and index detections using TCM apparatus for auxiliary diagnosis and treatment and a photoplethysmograph.The detections were carried out repeatedly until there was no monotonic change in the value of the minimal SaO_(2d)uring a BH measurement(SaO_(2 min)) or in the duration of BH during a BH measurement(TBH).RESULTS:BH measurement and index detection data from 380 eligible cases were analyzed and a significant intergroup difference was found for 12 indexes.CONCLUSION:An index series for quantitative QDP measurement could comprise the 12 effective indexes:RSaO_(2d)(rate of decline of SaO_(2d)uring a BH measurement),RSaO_(2r)(recovery rate of SaO_2 after a BH measurement),SaO_(2 min),BFV(blood flow velocity),TSaO_(2d)(the time at which SaO_2 started declining during a BH measurement),TBH,TSa_(O2 min)(the time of occurrence of the minimal SaO_(2d)uring a BH measurement),TSa O_(2 max)(the time of occurrence of the maximal SaO_2 after a BH measurement),PTP(pulse-touching pressure),SBP(systolic blood pressure),PWV(pulse wave velocity),and DBP(diastolic blood pressure).Of the indexes,RSaO_(2d)could play akey role in quantitative QDP measurement;RSaO_(2r) and Sa O_2 mincould be used to differentiate the QDP symptom of shortness of breath and as early-warning indexes for chronic obstructive pulmonary disease.BFV,TSaO_(2d),and TBHcould be used to quantitatively assess the QDP symptoms of spontaneous perspiration and shortness of breath. 展开更多
关键词 Qi deficiency pattern Dynamic arterial oxygen saturation pulse diagnosis Breath-holding measurement TCM
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