HANGZHOU, CHINA — What is Alibaba? This is the question the Chinese e-commerce giant is trying to answer on behalf of audiences outside of China, one year after launching the world's largest IPO. Although the Alibaba brand is a household name in the US, many fail to grasp the company's true identity, which is why Alibaba Defined, an interactive, digital portal, was created. It launched on the company's website on Thursday in conjunction with Alibaba's annual report and shareholder meeting.