In modern scientific collaboration networks, certain researchers play a pivotal role in bridging scholars who have never worked together - a phenomenon we term academic "match-makers." Despite their potential importance, the prevalence, characteristics, benefits, and long-term trajectory of these individuals remain underexplored. Using the Microsoft Academic Graph (MAG), we operationalized a match-maker as an author who, in a given publication, introduced a first-time collaboration between two co-authors, each of whom had previously collaborated with the match-maker but not with each other. We employed a configuration null model to distinguish observed patterns from random chance. Our findings reveal that the match-maker phenomenon is deliberate, prevalent, and consequential. Among authors with over 20 publications, nearly 30% have served as a match-maker, and the probability of acting as one increased eightfold from 1980 to 2019. Publications involving a match-maker are more likely to appear in high-impact journals and exhibit higher disruptiveness - particularly in larger teams - suggesting that match-makers help facilitate what we term integrative disruption. Match-makers tend to emerge early in their careers, peaking around the 20th publication and at an academic age of roughly ten years. While nearly all match-makers eventually experience "abandonment" in the sense that the connected researchers later collaborate without them, their continued involvement remains substantial and is driven by research needs rather than structural factors. This reframes abandonment not as exclusion but as a natural evolution within project-based collaborations. The academic match-maker phenomenon is a strategic feature of collaboration networks characterized by early-career emergence, context-dependent persistence, and tangible contributions to high-impact, disruptive research.

翻译：在现代科学合作网络中，部分研究人员在连接未曾合作过的学者方面扮演着关键角色——我们将这一现象称为学术“牵线人”。尽管其潜在重要性显著，但这些个体的普遍性、特征、优势及长期演变轨迹仍鲜有研究。基于微软学术图谱（MAG），我们将“牵线人”操作化定义为：在一篇特定论文中，首次促成两位合著者之间合作关系的作者——这两位合著者此前均与牵线人有过合作，但彼此之间未曾合作。我们采用配置零模型来区分观察到的模式与随机偶然性。研究结果表明，牵线人现象具有目的性、普遍性和深远影响。在发表超过20篇论文的作者中，近30%的人曾担任牵线人，且从1980年至2019年，担任牵线人的概率增长了八倍。涉及牵线人的论文更可能出现在高影响力期刊上，并展现出更高的颠覆性——尤其是在较大规模的团队中——这表明牵线人有助于促进我们称之为“整合性颠覆”的过程。牵线人往往在职业生涯早期涌现，大约在第20篇论文发表时及学术年龄约十年左右达到峰值。尽管几乎所有牵线人最终都会经历“被遗弃”（即被连接的两位研究人员后来在无牵线人参与的情况下合作），但他们的持续参与度仍然显著，且这种参与源于研究需求而非结构性因素。这重新将“被遗弃”定义为项目型合作中的自然演变，而非排斥现象。学术牵线人现象是合作网络的一种战略性特征，其特点包括早期职业涌现、情境依赖的持续性，以及对高影响力、颠覆性研究的实质性贡献。