Baidu has started to invest in deep learning research and is integrating new deep learning technology into some of its apps and products, including Phoenix Nest. Phoenix Nest is Baidu's ad-bidding platform.[82]
In April 2012 Baidu applied for a patent for its "DNA copyright recognition" technology. This technology automatically scans files that are uploaded by Internet users, and recognizes and filters out content that may violate copyright law. This allows Baidu to offer an infringement-free platform.[83][84]
Baidu has applied for a utility patent in the UK, for its proprietary site-wise search technology which is currently available in China.