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Abstract
摘要 |
As the lifeline of human society, infrastructures including information networks, transportation networks as well as power grid networks are facing unprecedented challenge on their reliability from various threats. Starting from a localized failure, a cascading failure can propagate with a domino-like way, which may result in catastrophe such as those observed in many realistic networks. For instance, in March 2015, over half number of provinces of Turkey witnessed cascading blackout, which caused tremendous and inevitable damage in transport, air service as well as residential electricity consumption. Similar cascading failures also happen in information system. In Jan 2014, starting from the crash of servers of Tencent, over two-thirds of DNS servers in China resulted in collapse, which caused a major breakdown of web pages for many users. These cascading failures are mostly inconspicuous at their early stage, but wide spreading in an unexpected way, making it difficult to predict and mitigate. In this talk, I will introduce our recent efforts to understand and design a resilient infrastructure. |
