Welcome to the proceedings of APCHI 2008, the 8th Asia-Pacific Conference on Computer-Human Interaction held in Seoul, Korea. Following the success of the preceding APCHI conferences, in Singapore (1996, 2000), Australia (1997), Japan (1998), China (2002), New Zealand (2004) and Taiwan (2006), the 8th APCHI brought together the researchers, developers, practitioners, and educators in the field of human-computer interaction. APCHI has been a major forum for scholars and practitioners in the Asia-Pacific region on the latest challenges and developments in HCI. Theoretical breakthroughs and practical systems and interfaces were presented at this 2008 conference, thanks to the support of KADO, the HCI ITRC of Sungkyu- wan University, and KIST. APCHI 2008 featured a comprehensive program including keynote speeches, regular paper presentations, poster, demos, and special panel sessions. To address the challenge of socially blending ubiquitous computing technologies and a wider sp- trum of people with a variety of skills, knowledge, and capabilities, APCHI 2008 set "Universal and Ubiquitous" as the conference theme. APCHI 2008 attracted a total of 151 paper submissions. Among such a large number of submissions, 45 full papers were accepted as submitted or with minor revisions. All papers were reviewed by at least two reviewers. For the remaining submissions, 41 were recommended to change according to the reviews and were submitted as extended abstracts and posters. One special session with six invited papers was organized to support the conference theme of "Universal and Ubiquitous.

The five-volume set LNCS 3980-3984 constitutes the refereed proceedings of the International Conference on Computational Science and Its Applications, ICCSA 2006. The volumes present a total of 664 papers organized according to the five major conference themes: computational methods, algorithms and applications high performance technical computing and networks advanced and emerging applications geometric modelling, graphics and visualization information systems and information technologies. This is Part V.

Over past few years, technologies have experienced boundaries getting blurred and concept of convergence to gain prominence. Harnessing from this, two main tracks for information processing management and communication are held, covering both research and application works of information management, intelligent information processing, interaction management, networking/ telecommunications, and social interaction. This book creates unique opportunity for research convergence among truly diverse technology domains of computer science. Leveraging from this diversity of topics, researchers get to generate novel research ideas by seeking application of their research in a different technology domain. This volume represents the collection of papers presented at the 13th International Conference on Ubiquitous Information Management and Communication (IMCOM 2019), held on 4-6 January 2019 in Phuket, Thailand. Out of 228 papers submitted from all around the world 88 papers were accepted for presentations. The 88 contributions to this volume are organized into 5 chapters: Chapter 1. Network Evolution, Chapter 2. Intelligent and Secure Network, Chapter 3. Image and Video Processing, Chapter 4. Information Technology and Society, and Chapter 5. Data Mining and Learning. Our editors wish readers to find this volume informative and enjoyable.