TREC 2010 Session Track: The Session Track is a new track for TREC 2010 with the goal of studying retrieval methods and performance over a sequence of reformulated queries.
Session Track web page
SIGIR 2009 Workshop on Redundnacy, Diversity, and Interdependent Document Relevance: This workshop will explore how ranking, performance assessment, and learning to rank can move beyond the assumption that the relevance of documents in a ranking is independent. We are looking for novel work on the effect of redundancy on IR utility, the role of diversity in ranking documents, and approaches to set-level evaluation and optimization.
Million Query Track 2009: The Million Query Track is running as part of TREC 2009. Its goal is the study of evaluation and optimization of information retrieval systems over very many very incompletely judged topics. We are co-coordinating with Northeastern University and UD's ECE department.