Good Direction:
Person could have voted 1000's of nodes just because he/she has extra votes remaining for the day or just liked the node in general rather than specific. IMHO, for practical purpose we cannot use the existing voting system. There is no capabilities in the existing system to vote negative after you have vote positive for the node and vice versa.

In reply to Re^2: Collaborative filtertering by artist
in thread Collaborative filtertering by artist

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