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Leaders in Social Networks, the Delicious Case
Finding pertinent information is not limited to search engines. Online communities can amplify the influence of a small number of power users for the benefit of all other users. Users' information foraging in depth and breadth can be greatly enhanced by choosing suitable leaders. For instance i...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3124485/ https://www.ncbi.nlm.nih.gov/pubmed/21738620 http://dx.doi.org/10.1371/journal.pone.0021202 |
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author | Lü, Linyuan Zhang, Yi-Cheng Yeung, Chi Ho Zhou, Tao |
author_facet | Lü, Linyuan Zhang, Yi-Cheng Yeung, Chi Ho Zhou, Tao |
author_sort | Lü, Linyuan |
collection | PubMed |
description | Finding pertinent information is not limited to search engines. Online communities can amplify the influence of a small number of power users for the benefit of all other users. Users' information foraging in depth and breadth can be greatly enhanced by choosing suitable leaders. For instance in delicious.com, users subscribe to leaders' collection which lead to a deeper and wider reach not achievable with search engines. To consolidate such collective search, it is essential to utilize the leadership topology and identify influential users. Google's PageRank, as a successful search algorithm in the World Wide Web, turns out to be less effective in networks of people. We thus devise an adaptive and parameter-free algorithm, the LeaderRank, to quantify user influence. We show that LeaderRank outperforms PageRank in terms of ranking effectiveness, as well as robustness against manipulations and noisy data. These results suggest that leaders who are aware of their clout may reinforce the development of social networks, and thus the power of collective search. |
format | Online Article Text |
id | pubmed-3124485 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-31244852011-07-07 Leaders in Social Networks, the Delicious Case Lü, Linyuan Zhang, Yi-Cheng Yeung, Chi Ho Zhou, Tao PLoS One Research Article Finding pertinent information is not limited to search engines. Online communities can amplify the influence of a small number of power users for the benefit of all other users. Users' information foraging in depth and breadth can be greatly enhanced by choosing suitable leaders. For instance in delicious.com, users subscribe to leaders' collection which lead to a deeper and wider reach not achievable with search engines. To consolidate such collective search, it is essential to utilize the leadership topology and identify influential users. Google's PageRank, as a successful search algorithm in the World Wide Web, turns out to be less effective in networks of people. We thus devise an adaptive and parameter-free algorithm, the LeaderRank, to quantify user influence. We show that LeaderRank outperforms PageRank in terms of ranking effectiveness, as well as robustness against manipulations and noisy data. These results suggest that leaders who are aware of their clout may reinforce the development of social networks, and thus the power of collective search. Public Library of Science 2011-06-27 /pmc/articles/PMC3124485/ /pubmed/21738620 http://dx.doi.org/10.1371/journal.pone.0021202 Text en Lü et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Lü, Linyuan Zhang, Yi-Cheng Yeung, Chi Ho Zhou, Tao Leaders in Social Networks, the Delicious Case |
title | Leaders in Social Networks, the Delicious Case |
title_full | Leaders in Social Networks, the Delicious Case |
title_fullStr | Leaders in Social Networks, the Delicious Case |
title_full_unstemmed | Leaders in Social Networks, the Delicious Case |
title_short | Leaders in Social Networks, the Delicious Case |
title_sort | leaders in social networks, the delicious case |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3124485/ https://www.ncbi.nlm.nih.gov/pubmed/21738620 http://dx.doi.org/10.1371/journal.pone.0021202 |
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