Proceedings of the Ninth International AAAI Conference on Web and Social Media (Icwsm 2015)

The social and community driven aspects of our digital lives continue to rapidly increase, resulting in transformative behaviors and, significantly, publishing and distributing huge amounts of fascinating data. The ninth meeting of the International AAAI Conference on Web and Social Media (ICWSM-14) was held at Oxford University in Oxford, UK. There were 64 full papers accepted (the acceptance rate was 19 percent). There are also 37 poster submissions appearing in the proceedings as four-page papers, and 3 demonstration papers appearing in the proceedings as two-page summaries. This conference continues to provide evidence that ICWSM is maturing in its role as a premier venue for social media research.