With artificial intelligence systems increasingly applied in consequential domains, researchers have begun to ask how AI ought act ethically charged situations where even humans lack consensus. In the Moral Machine project, crowdsourced answers "Trolley Problems" concerning autonomous vehicles. Subsequently, Noothigattu et al. (2018) proposed inferring linear functions that approximate each ind...

If reputation systems weight all perspectives similarly, they may devolve into simple majority rule. But if they give each user reputation scores that take only other similar users’ opinions into account, they run the risk of becoming “echo chambers” in which like-minded people reinforce each others’ views without being open to outside perspectives. Massa discusses design choices and trust metr...

SIMÓN BOLÍVAR’S REPUBLIC: A BULWARK AGAINST THE “TYRANNY” OF THE MAJORITY