科技期刊论文首次被引的幂律分布规律研究科学网—博客.PDFVIP

绉戞妧鏈熷垔璁烘枃棣栨琚紩鐨勫箓寰嬪垎甯冭寰嬬爺绌?锛 楂樻檽鍩 琚佸啗楣 椹偿 姝﹀し灞 锛堜腑鍥界瀛︽妧鏈俊鎭爺绌舵墍锛屽寳浜?00038 锛 锛堝彂琛ㄤ簬銆婃儏鎶ュ鎶ャ€?015 骞寸7 鏈燂級 鎽樿锛氭湰鏂囦互SCIE 鏀跺綍1920銆?960銆?000 骞寸殑1,118,199 绡囪鏂囦负鏁版嵁鏉ユ簮锛屽垎鏋愪簡鍏堕娆¤寮曟椂闂撮棿闅 鐨勫垎甯冭寰嬨€傜爺绌剁粨鏋滃彂鐜帮紝涓嶅悓鍑虹増骞磋鏂囬娆¤寮曟椂闂撮棿闅旀湇浠庡箓寰嬪垎甯冦€備笉鍚屽绉戣鏂囧湪涓嶅悓鍑虹増 骞淬€佸悓涓€鍑虹増骞寸殑棣栨琚紩姣斾緥宄板€ 戆 涓庡箓鎸囨暟 饊嫾 鍧囨鐩稿叧銆傚皢鍚屼竴鍑虹増骞寸殑璁烘枃鎸夌収琚紩棰戞楂樹綆鍊掑簭 鎺掑簭骞跺垎涓轰簲缁勶紝鍚勭粍棣栨琚紩鏃堕棿闂撮殧浜︽弧瓒冲箓寰嬪垎甯冿紝骞傛寚鏁 饊嫾 涓庤缁勮鏂囩殑骞冲潎琚紩棰戞姝ｇ浉鍏炽€ 闅忓悗鏈枃鎺㈣浜嗛娆¤寮曞箓寰嬪垎甯冭寰嬬殑涓ょ鍙兘鐨勫簲鐢細鍙敤浜庢瀯寤洪浂琚紩姣斾緥鏃堕棿婕斿寲妯″瀷鍜岃В閲婄 鎶€鏈熷垔璁烘枃涓繜婊炴壙璁ょ幇璞°€ 鍏抽敭璇嶏細棣栨琚紩 闆惰寮 浜虹被琛屼负鍔ㄥ姏瀛 骞傚緥鍒嗗竷 棣栨琚紩鏃堕棿闂撮殧 鍒嗙被鍙 G350 Power Law distribution of first citations to ST journal papers Gao Xiaopei 锛孻uan Junpeng 锛孧a Zheng 锛學u Yishan 锛圛nstitute of Scientific and Technical Information of China, Beijing 100038 锛 ABSTRACT: Based on the data on 1,118,199 papers published in different years (1920, 1960, 2000) drawn from SCIE, we study the distribution of time interval between the publication year and the year of first citation . The research results show that such time intervals obey a power-law distribution. For papers published in different years or papers of different subjects published in the same year, the peak of the time interval (戆? for the first citation has notable positive correlation with the power exponent (饊嫾). Then papers of the same publication year are listed in total cites order and then divide into five groups. It turns out that time intervals for the first citation for those five groups also obey a power-law distribution, with the power exponent (饊嫾) having notable positive correlation with average total cites. The power law distribution of time intervals for the first citation has two possible applications: it can be used in building the time-dependent zero citation model and in explaining the phenomenon of delayed recognition. KEYWORDS: First citation. Zero citation