本文選題：小眾專家　切入點(diǎn)：社會語義網(wǎng)　出處：《圖書情報工作》2017年02期

【摘要】：[目的 /意義]社交媒介不僅提供了用戶間知識交流的平臺,而且形成了知識復(fù)用的渠道。一部分社交網(wǎng)絡(luò)用戶在信息傳播、知識共享等方面都能夠?qū)ζ渌脩舢a(chǎn)生影響,稱之為"小眾專家"。對"小眾專家"群體的研究對于社交網(wǎng)絡(luò)中信息傳播具有促進(jìn)作用。[方法 /過程]以MetaFilter數(shù)據(jù)集為例,利用用戶社交網(wǎng)絡(luò)活動數(shù)據(jù),生成用戶關(guān)系網(wǎng)絡(luò),結(jié)合網(wǎng)絡(luò)分析與時序分析篩選"小眾專家",分析"小眾專家"群體在不同語義環(huán)境下的"穩(wěn)定-遷移"特征,并提出評測指標(biāo),進(jìn)行驗(yàn)證分析。[結(jié)果 /結(jié)論]結(jié)果顯示:只有極少部分"小眾專家"能夠在多種語義環(huán)境下保持穩(wěn)定性,而大部分"小眾專家"只能在單一語義環(huán)境中保持穩(wěn)定性。
[Abstract]:[purpose / meaning] Social media not only provides a platform for knowledge exchange among users, but also forms a channel for knowledge reuse. Some users of social networks can have an impact on other users in terms of information dissemination, knowledge sharing, etc. The study of the group of "niche experts" can promote the dissemination of information in social networks. [methods / processes] take the MetaFilter dataset as an example, using user social network activity data to generate a user relationship network. Combined with network analysis and temporal analysis to screen "minority experts", the characteristics of "stable migration" of "minority experts" in different semantic environments are analyzed, and the evaluation indexes are proposed. The results show that only a few "niche experts" can maintain stability in a variety of semantic environments, while most "minority experts" can only maintain stability in a single semantic environment.
【作者單位】： 武漢大學(xué)信息資源研究中心;華中師范大學(xué)信息管理學(xué)院;
【基金】：國家社會科學(xué)基金重大項目“智慧城市應(yīng)急決策情報體系建設(shè)研究”(項目編號:13&ZD173) 中央高�；究蒲袠I(yè)務(wù)費(fèi)項目“面向應(yīng)急決策的專家發(fā)現(xiàn)與意見融合研究”(項目編號:CCNU16A05044)研究成果之一
【分類號】：TP391.1
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本文編號：1661881