This book constitutes the proceedings of the 4th International Conference on Internet Science held in Thessaloniki, Greece, in November 2017. The 34 papers presented were carefully reviewed and selected for inclusion in this volume. They were organized in topical sections named: next generation community engagement; online policy, politics and co-creation; understanding and empowering digital citizens; data-driven research and design; social media and online interaction.

Abstracts of papers.

International Science Congress Association organized 3rd International Science Congress (ISC-2013), with “Innovation with Global Responsibility” as its Focal Theme. ISC-2013 is divided in 20 sections. A total number of 900 Research Papers and 1000 registrations from 36 countries all over the world have been received. They are mainly from India, Iran, Sudan, Iraq, South Africa, Phillipines, Pakistan, Nighana, Erode, Czech Republic, Bangladesh, Swaziland, Jordan, USA, Thailand, Japan, Malaysia, Kazakhstan, UK, Colombia, Nepal, Italy, Bulgariya, Cameroun, France, Greece, Kazakhstan, Korea, Lithuania, Nigeria, Poland, Romania, Slovakiya, Ukraine, Venezuela and Turkey.

This book constitutes the proceedings of the 4th International Conference on Geometric Science of Information, GSI 2019, held in Toulouse, France, in August 2019. The 79 full papers presented in this volume were carefully reviewed and selected from 105 submissions. They cover all the main topics and highlights in the domain of geometric science of information, including information geometry manifolds of structured data/information and their advanced applications.

The theme of the conference is "Reconstructing Morals, Education, and Social Sciences for Achieving Sustainable Development Goals". This theme was formulated due to several considerations. First, the symptoms of moral decline that have the potential to destroy the nation. Morals guide humanity towards truth and civilization. The phenomenon of the dehumanization process in the industrial era that pushed people to be part of abstract societies tends to ignore humanity. The education process as a humanitarian system is increasingly marginalized, especially during discussions about the industrial revolution 4.0 and Society 5.0. The conference placed six sub-themes for speakers and participants to share ideas, namely: Social Sciences and Laws, History and Cultural Studies, Interdisciplinary Studies, Morals and Humanities, Policy, Politics, and Communication, Education. The committee has received 195 abstracts from prospective speakers. However, there are only 80 abstracts that are eligible to be presented at this conference.