Recommender systems for news articles on social media select and filter content through automatic personalization. As a result, users are often unaware of opposing points of view, leading to informational blindspots and potentially polarized opinions. They may be aware of a topic, but only be exposed to one viewpoint on this topic. However, recommender systems have just as much potential to help users find a plurality of viewpoints. In this spirit, this paper introduces an approach to automatically identifying content that represents a wider range of opinions on a given topic. Our offline results show positive results for our distance measure with regard to diversification on topic and channel. However, our user study results confirm that user acceptance of this diversification also needs to be addressed in tandem to enable a complete solution.
|Title of host publication||UMAP 2018 - Adjunct Publication of the 26th Conference on User Modeling, Adaptation and Personalization|
|Place of Publication||New York, NY, USA|
|Publisher||Association for Computing Machinery, Inc|
|Number of pages||7|
|Publication status||Published - 2 Jul 2018|
- Diversity based ranking
- News recommendation