Overview of NTCIR-10

This is an overview of NTCIR-10, the tenth sesquiannual workshop for the evaluation of Information Access technologies. NTCIR-10 celebrates its tenth cycle of the research activities attracting the largest and most diverse set of evaluation tasks led by cutting-edge researchers worldwide. This paper presents a brief history of NTCIR and overall statistics of NTCIR-10, followed by an introduction of eight evaluation tasks. We conclude the paper by discussing the future directions of NTCIR. Readers should refer to individual task overview papers for their activities and findings.