NTCIR-6 Patent Retrieval Task

jp: Japanese Retrieval Subtask

system_description: brief technical descriptions of each system Note(1)
Please see the following paper for details of "def0" and "def1":
Atsushi Fujii, Makoto Iwayama, and Noriko Kando.
Overview of the Patent Retrieval Task at the NTCIR-6 Workshop.
Proceedings of the Sixth NTCIR Workshop Meeting, 2007.

Note(2)
While BETA6-run1 was evaluated with all retrieved documents, BETA6-run1_c was evaluated only with the top documents that were retrieved confidently.

en: English Retrieval Subtask

system_description: brief technical descriptions of each system

cl: Classification Subtask

ntc6.formalrun.result.xls: complete evaluation results (precision at various recall points, average precision, f-measure, etc.)