Lately , I have been thinking about doing a page-rank over a social network. The problem definition would be to given a social-networking graph to find the top respected/ranked person for a given field/industry.
The solution can have immense value for recruiters (cutting search time for potential candidates) , Hedge Funds (Finding the domain experts) or for marketers ( finding the trend-setters , heavy influencers ) to market their new gizmo's or ideas in a network.
To define the problem in more concrete terms
Problem
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Given a social graph ( nodes/ attributes / connection info) find a ranking/respect value for members for specific domains ??
it gives birth to one other Question in my mind ? Does one single global pagerank enough or we need a topic-domain based pagerank in general ??
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