Search and advertising are among the most essential business models of Baidu. Current research and development activities include：Fundamental hashing techniques, hashing-based large-scale machine learning, hashing-based indexing and fast similarity search, image search, web search, learning to rank, etc.
By leveraging heterogeneous mobile big data in Baidu, BDL builds Smarter City application which is able to:
1) Monitor human crowds in real-time and predict crowd anomaly in the future;
2) Analyze user mobility data and enables data-driven urban planning, transportation optimization etc.
3) Quantity the population dynamics of urban network in China, and provide insights into urban developmentAll the above features are implemented into the API named Crowd Analytics, which is going to release soon.
In mobile internet era, especially in the forthcoming internet of things era, each user can be viewed as a sensor of our society. We believe such mobile big data provides novel tools to measure the economic system of China in a totally new perspective, turning spatial-temporal big data into insights for investment decision making,and therefore we give it a name - MobiMetrics. The very inter-disciplinary background of our team enables us to achieve this goal by combing the expertise from filed including machine learning, complex network, econometrics and social science.