Internet protocol television (IPTV) advertising has the characteristics of both traditional TV and online advertising and mainly sells impressions through signed guaranteed contracts with ...advertisers. In this study, we applied the reach and frequency (R&F) contract to the IPTV sales model. Through the R&F contract, advertisers can specify the expected number of unique individuals reached and the frequency cap of the advertisements seen by each user. Considering the lack of user demographic information, we propose using viewing program information instead as the basis for user classification in targeted advertising. Advertising allocation models for two-layer optimization are established. In the upper-layer optimization, the advertising allocation proportion is optimized for all user types to minimize the publisher's under-delivery and non-representativeness of advertising delivery among user types. In the lower-layer optimization, the impact of repeated advertising on user purchase probability is considered. The specific allocation of advertisements is optimized for each user type to maximize the expected number of buyers without violating the optimization results of the upper-layer optimization. A repeated exposure-based hierarchical column generation (REHCG) algorithm is used to address the IPTV advertising scheduling problem. Numerical experiments based on actual data from the IPTV industry show that the REHCG algorithm obtains high-quality results for IPTV advertising scheduling.
IPTV using Internet protocols, streaming-based mobile broadcasting such as terrestrial 1-segment broadcasting and digital audio broadcasting started recently. Download-based broadcasting services in ...IP networks and digital broadcasting that plays back stored content on receivers are now being considered. These broadcasting services require a function that allows only subscribers to view video content in addition to a function for playing content at a deteriorated quality to encourage viewers to purchase the content. Therefore, broadcasters require a digital video scrambling method with variable concealed levels to control the video quality of stored content. We propose a low complexity video scrambling method with variable concealed levels for H.264/AVC video coding. This method can handle H.264/AVC coding content, and its processing load for controlling the concealed level is low. We also verify that the proposed method is feasible for actual services by evaluating video quality and implementation.
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