Real-Time Influence Maximization in a RTB Setting

Par David Dupuis, abandon en 2019. Co-encadrée avec Gaël Chareyron et Cédric du Mouza

To maximize the impact of an advertisement campaign on social networks, the Real-Time Bidding (RTB) systems aim at targeting the most in- fluential users of this network. Influence Maximization (IM) is a solution that addresses this issue by maximizing the coverage of the network with top-k influencers who maximize the diffusion of information. Associated with online advertising strategies at web scale, RTB is faced with complex ad placement decisions in real-time to deal with a high-speed stream of online users. To tackle this issue, IM strategies should be modified in order to integrate RTB constraints. While most traditional IM methods deal with static sets of top influencers, they hardly address the dynamic influence targeting issue by integrating short time decision, no interchange and stream’s incompleteness. This paper proposes a real-time influence maximization (RTIM) approach which takes influence maximization decisions within a real-time bidding environment. A deep analysis of influence scores of users over several social networks is presented as well a strategy to guarantee the impact of an IM strategy in order to define the budget of an ad campaign. Finally, we offer a thorough experimental process to compare static versus dynamic IM solutions wrt. influence scores.

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