University of Bremen

About: University of Bremen is a education organization based out in Bremen, Germany. It is known for research contribution in the topics: Population & Context (language use). The organization has 14563 authors who have published 37279 publications receiving 970381 citations. The organization is also known as: Universität Bremen.

Personalized Online Advertising Effectiveness: The Interplay of What, When, and Where

Abstract: Firms track consumers' shopping behaviors in their online stores to provide individually personalized banners through a method called retargeting. We use data from two large-scale field experiments and two lab experiments to show that, although personalization can substantially enhance banner effectiveness, its impact hinges on its interplay with timing and placement factors. First, personalization increases click-through especially at an early information state of the purchase decision process. Here, banners with a high degree of content personalization DCP are most effective when a consumer has just visited the advertiser's online store, but quickly lose effectiveness as time passes since that last visit. We call this phenomenon overpersonalization. Medium DCP banners, on the other hand, are initially less effective, but more persistent, so that they outperform high DCP banners over time. Second, personalization increases click-through irrespective of whether banners appear on motive congruent or incongruent display websites. In terms of view-through, however, personalization increases ad effectiveness only on motive congruent websites, but decreases it on incongruent websites. We demonstrate in the lab how perceptions of ad informativeness and intrusiveness drive these results depending on consumers' experiential or goal-directed Web browsing modes.

Active growth of the Bengal Fan during sea-level rise and highstand

Abstract: New stratigraphic and high-resolution seismic data from the Bengal Fan indicate that the world9s largest fan shows active growth during the most recent sea-level rise and the recent highstand. This unique phenomenon contradicts common sequence-stratigraphic models, and the sediment preserved provides new insight into the sedimentological response of a fan system to sea-level rise, climatic terminations, and monsoon intensity during the past climatic cycle. We present a detailed dated sequence of turbidite sedimentation based on a core transect perpendicular to the active channel-levee system in the upper mid-fan area. Between the two major terminations 1a (12 800 14 C yr B.P.) and 1b (9700 14 C yr B.P.), and especially at the end of the Younger Dryas, a 13-km-wide channel built up levees 50 m high. With decreasing sediment supply, continued sea-level rise, and increasing monsoon intensity during the early Holocene, turbidity currents were confined to the channel and gradually filled it. The canyon “Swatch of No Ground,” a shelf depocenter that serves as the source for frequent turbidity currents, and the channel-levee system provide the unique opportunity for studying an active highstand system. Many fans showed this behavior only during lowered sea-level.