The head of the YINXIANG Research Institute is responsible for researching and innovating the core technology of YINXIANG products. The YINXIANG Research Institute was established before and after the independence of Evernote, with main research directions including "distributed consistency algorithms and systems related to collaborative editing", "algorithms and system architecture related to search and recommendation systems", and "machine learning algorithms and system architecture related to multimodal data processing". Under Cheng Chang's leadership, the YINXIANG Research Institute continuously transforms new technologies into product applications, providing continuous support for all YINXIANG products. Before joining YINXIANG, Cheng Chang served as a senior data scientist at HP Labs and AppAnnie.