Dear colleagues, The deadline for submitting contributed or invited abstracts to the INFORMS annual meeting<http://meetings2.informs.org/wordpress/phoenix2018/> (Nov.4-7, 2018, Phoenix) is approaching May 15, 2018. Please do not hesitate to finalize and submit your contribution to the Telecom Cluster before the deadline. Also, we still have several open slots in the sessions related to Network Design, Optical Networks, Wireless communication, Social Networks, Routing and Flow Problems, Robust Network Optimization, and Decomposition Methods among others. If you are interested to present your work, please let me know as soon as possible the title/topic of your intended submission to redirect it to the most appropriate session. Best regards, -D.Papadimitriou Email: dimitri.papadimitriou@nokia-bell-labs.com<mailto:dimitri.papadimitriou@nokia-bell-labs.com>