>"LISBON (Reuters) -As concerns grow over racial bias in artificial intelligence, Black Lives Matter (BLM) co-founder Opal Tometi urged the tech sector to act fast against perpetuating racism in systems such as facial recognition. Artificial intelligence is transforming the world and can be applied in diverse sectors, from improving the early detection of diseases to sorting out data and solving complex problems, but there are also concerns around it. "A lot of the algorithms, a lot of the data is racist," U.S. activist Tometi, who co-founded BLM in 2013, told Reuters on the sidelines of Lisbon's Web Summit."