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Christopher Brennan has been a journalist for a decade, reporting from more than 10 countries and appearing in outlets such as the BBC World Service, France 24, and NY Daily News. While covering tech in Brussels he became increasingly focused on data and starting in 2019 became involved in building models to differentiate between news articles in a more effective way, not just on engagement metrics such as clicks. He co-founded Overtone.ai in 2021, and is responsible for its model focused on the journalistic signals of articles.