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arXiv 1606.08207physics.soc-phcs.CLcs.CYcs.HCcs.SI
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在线交流中的语义同质性:来自Twitter的证据

Semantic homophily in online communication: evidence from Twitter

Aalto University(阿尔托大学);University Ss. Cyril and Methodius(圣西里尔与美多德大学);University of Tampere(坦佩雷大学);Hong Kong University of Science and Technology(香港科技大学);New York University(纽约大学)

Sanja Šćepanović, Igor Mishkovski, Bruno Gonçalves, Nguyen Trung Hieu, Pan Hui

AI总结:

本研究基于Twitter提及关系构建的交流网络,首次深入分析语义同质性现象,量化其不同层级、识别驱动维度、揭示时间演化规律并厘清其与网络结构的复杂相互作用,深化了对计算机介导交流语义塑造机制的理解。

摘要:

研究观察到人们会基于一系列特征进行同类匹配式连接。这种被称为同类匹配或有时称同质性的现象,可通过社交网络中的同配系数进行量化。揭示社交网络中存在的强同类匹配现象的确切成因,一直是一项研究难题。社会学领域提出的主要成因包括:相似个体倾向于相互连接(该倾向本身也常被称为同质性),以及已建立连接的个体之间存在社会影响。正如本文所呈现的,我们可以解决一个对研究者和实践领域都很重要的问题:厘清这些倾向与底层社交网络结构之间相互作用的确切机制。具体而言,除了上述同配系数之外,还有若干其他静态和时序网络属性及子结构,可能与社交网络中的同质性倾向和社会影响相关,本文对此展开了研究。具体来说,我们研究了一个计算机介导的\textit{communication network}(交流网络,基于Twitter提及关系构建),以及一类可从交流内容的语义特征推断出的特殊同类匹配现象,我们将其命名为\textit{semantic homophily}(语义同质性)。据我们所知,本研究首次针对交流网络中的语义同质性及其与网络的相互作用展开深入分析。我们量化了不同层级的语义同质性,识别出驱动观测到的同质性的语义维度,揭示了其时间演化规律的相关洞见,最后还呈现了它与Twitter上交流网络之间的复杂相互作用。通过分析这些机制,我们深化了对哪些语义维度在塑造人类计算机介导交流、以及它们如何塑造这类交流的理解。

英文摘要:

People are observed to assortatively connect on a set of traits. This phenomenon, termed assortative mixing or sometimes homophily, can be quantified through assortativity coefficient in social networks. Uncovering the exact causes of strong assortative mixing found in social networks has been a research challenge. Among the main suggested causes from sociology are the tendency of similar individuals to connect (often itself referred as homophily) and the social influence among already connected individuals. An important question to researchers and in practice can be tackled, as we present here: understanding the exact mechanisms of interplay between these tendencies and the underlying social network structure. Namely, in addition to the mentioned assortativity coefficient, there are several other static and temporal network properties and substructures that can be linked to the tendencies of homophily and social influence in the social network and we herein investigate those. Concretely, we tackle a computer-mediated \textit{communication network} (based on Twitter mentions) and a particular type of assortative mixing that can be inferred from the semantic features of communication content that we term \textit{semantic homophily}. Our work, to the best of our knowledge, is the first to offer an in-depth analysis on semantic homophily in a communication network and the interplay between them. We quantify diverse levels of semantic homophily, identify the semantic aspects that are the drivers of observed homophily, show insights in its temporal evolution and finally, we present its intricate interplay with the communication network on Twitter. By analyzing these mechanisms we increase understanding on what are the semantic aspects that shape and how they shape the human computer-mediated communication.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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