政治科学. 政治学. 政治学について. Facebookでのイデオロギー的に多様なニュースや意見への曝露
Eytan Bakshy1, Solomon Messing2, Lada A Adamic3
1Facebook, Menlo Park, CA 94025, USA. ebakshy@fb.com.
まとめ
ソーシャルメディアユーザーは,限られた多様なニュースを目にします. アルゴリズムよりも個人の選択は,オンラインでの異なる見解への曝露を制限し,市民の情報消費に影響を与えます.
科学分野:
- 社会科学 社会科学とは
- コミュニケーション研究 コミュニケーション研究
- 政治科学は政治学を学んでいる.
背景:
- ニュース消費は,ますますソーシャルメディアのプラットフォームを通じて発生しています.
- オンラインにおけるイデオロギー的な分離を理解することは,民主的な議論にとって極めて重要です.
研究 の 目的:
- ソーシャル・メディア・ネットワークが,横断的なイデオロギー的な視点への曝露にどのように影響するか調査する.
- コンテンツの多様性に対するユーザー選択とアルゴリズムランキングの影響を定量化するために.
主な方法:
- 米国Facebookユーザー1010万人からの非特定データの分析.
- ソーシャルネットワークにおけるイデオロギー的な同性愛性の測定.
- アルゴリズムフィードとユーザークリック行動による多様なコンテンツへの曝露の定量化.
主要な成果:
- イデオロギー的な同志性は,Facebookのフレンドネットワークで直接測定されました.
- ユーザーの選択は,アルゴリズムランキングよりも,横断的なコンテンツへの露出を大幅に制限しています.
- 異質な友人を通して多様な視点への曝露の可能性が検討されました.
結論:
- 個々のユーザーの選択は,ソーシャルメディア上のイデオロギー的に多様なコンテンツへの曝露を制限する主な要因です.
- ソーシャルメディアのアルゴリズムは,ユーザー行動と比較して,イデオロギー的な分離において,より少ない役割を果たします.
- 市民の情報曝露の影響を理解するためにさらなる研究が必要である.
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