1. SCREEN Holdings Co., Ltd., Kyoto 615-8194, Japan
2. Faculty of Fiber Science and Engineering, Kyoto Institute of Technology, Kyoto 606-8585, Japan
3. Department of Mining and Materials Engineering, McGill University, Montreal, QC H3A 0E8, Canada
4. GERAD and Department of Mathematics and Industrial Engineering, Polytechnique Montreal, Montreal, QC H3T 1N8, Canada