1973-. Russian-American computer scientist and entrepreneur.
Co-invented PageRank with Larry Page (1998), the eigenvector-based algorithm that ranks web pages by the link structure of the graph.
Co-founded Google, applying PageRank to web search and transforming information retrieval from keyword matching to graph-based relevance.
The PageRank algorithm models a random walker on the link graph, converging to a stationary distribution that measures each page's importance.
This is the direct ancestor of cyberank: cyber generalizes PageRank to a weighted, directed knowledge graph with stake-weighted teleportation, computing focus over particles instead of web pages.