Make sure to subscribe to get ATW in your inbox, for free, each Monday. // M&A, Strategies, Alliances // Amazon has acquired Graphiq for $50m, according to sources in the LA Times, a data analysis and search specialist, in a move to improve Amazon’s Alexa digital assistant. SoftBank is reportedly looking at taking a major stake in Uber, something that sounds in-character for the firm, given its ARM-pounce when forex allowed it to buy the British institution for cheap. Recent bad press will have damaged Uber’s valuation. Innogy has announced a new €250k investment opportunity prize for its innovation hub project, for startups exploring the machine economy. Prodea has acquired Arrayent, adding the IoT applications platform to Prodea’s end-to-end managed…