Abstract
As start-up companies may leverage information spreading through Instagram's hashtag-setting, algorithms in influence maximization can be encoded. The objective is to find a maximum impact which can activate users in spreading advertisement marketing campaign through social network. This paper contributes an influence analysis on Instagram and reproduces it into a hashtag network by transforming postings with hashtag interdependence. In finding optimal paths such network structure with influence probabilities, we employ Floyd-Warshall algorithm under uncertainty. The technique is simulated on Indonesian FnB unicorn company and demonstrated in numerical example. The result shows that the hashtag #promokopi may impact the most.
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