Google Tech Talks January 7, 2009 ABSTRACT We've become complacent about relevance. The overwhelming success of web search engines has lulled even information retrieval (IR) researchers to expect only incremental improvements in relevance in the near future. And beyond web search, there are still broad search problems where relevance still feels hopelessly like the pre-Google web. But even some of the most basic IR questions about relevance are unresolved. We take for granted the very idea that a computer can determine which documents are relevant to a person's needs. And we still rely on two-word queries (on average) to communicate a user's information need. But this approach is a contrivance; in reality, we need to think of information-seeking as a problem of optimizing the communication between people and machines. We can do better. In fact, there are a variety of ongoing efforts to do so, often under the banners of "interactive information retrieval", "exploratory search", and "human computer information retrieval". In this talk, I'll discuss these initiatives and how they are helping to move "relevance" beyond today's outdated assumptions. Speaker: Daniel Tunkelang Daniel Tunkelang is co-founder and Chief Scientist at Endeca, a leading provider of enterprise information access solutions. He leads Endeca's efforts to develop features and capabilities that emphasize user interaction. Daniel has spearheaded the annual Workshops on Human Computer Information Retrieval (HCIR) and is organizing the Industry Track for SIGIR '09. Daniel also publishes The Noisy Channel, a widely read and cited blog that focuses on how people interact with information. Daniel holds undergraduate degrees in mathematics and computer science from the Massachusetts Institute of Technology, with a minor in psychology. He completed a PhD at Carnegie Mellon University for his work on information visualization. His work previous to Endeca includes stints at the IBM T. J. Watson Research Center and AT Labs.