Hiroshi Koga. The Trap of Quantification of Advertising Effectiveness: A Preliminary Study of the Ethical Challenges of Native Advertising. In Leon S. L. Wang, Shiro Uesugi, I-Hsien Ting, Koji Okuhara, Kai Wang, editors, Multidisciplinary Social Networks Research - Second International Conference, MISNC 2015, Matsuyama, Japan, September 1-3, 2015. Proceedings. Volume 540 of Communications in Computer and Information Science, pages 523-533, Springer, 2015.