Dear Presenters at GIS-IDEAS 2016, *We are very sorry about some mistakes about the date of fullpaper extending in the last announcement mail.* We would like to inform that the last and final deadline for conference registration at early-bird rates is 7th Oct. 2016. After 7th Oct. 2016 Late registration rates will be applied. So, please take advantage of the eary-bird discount at complete your registration process at [1]. Further, the last date of submitting your full paper in the prescribed conference format [2] is 7th Oct. 2016. Full paper's received before *7th Oct. 2016* will be included in the hardcopy proceedings. Full-paper of presenters submitting after *7th Sept. 2016* will be only made available online through the conference website. Please download the full-paper template from [2] and format your paper fully adhering to the guidelines. Looking forward to seeing you at GIS-IDEAS 2016. [1] http://gisws.media.osaka-cu.ac.jp/gisideas16/registration.php [2] http://gisws.media.osaka-cu.ac.jp/gisideas16/author_guide.html Sincerely, Conference Secretariat Attn: Secretary GIS-IDEAS 2016 Hanoi University of Mining and Geology 18 Vien Street, Duc Thang Ward, Bac Tu Liem District, Hanoi, S.R. Vietnam Phone: +84-4-37520834 Fax: +84-4-38389633 Email: gisideas.secretary@gmail.com http://gisws.media.osaka-cu.ac.jp/gisideas16/index.php -- GIS-IDEAS 2016 secretary.