https://doi.org/10.31449/inf.v44i2.3198 Informatica 44 (2020) 113–113 113 
Special issue on “The Tenth International Symposium on 
Information and Communication Technology ―SoICT 2019” 
Since 2010, the Symposium on Information and 
Communication Technology―SoICT has been organized 
annually. The symposium series provides an academic 
forum for researchers to share their latest research 
findings and to identify future challenges in computer 
science. The best papers from SoICT 2015, SoICT 2016, 
and SoICT 2017 have been extended and published in the 
Special issue “SoICT 2015”, “SoICT 2016”, and “SoICT 
2017” of the Informatica Journal, Vol.40, No.2 (2016), 
Vol. 41, No. 2 (2017), and Vol. 42, No. 3 (2018), 
respectively. 
In 2019, SoICT was held in the scenic Ha Long bay, 
Vietnam, during December 4–6, commemorating the 
tenth event of the symposium series.  The symposium 
covered four major areas of research including Artificial 
Intelligence and Big Data, Information Networks and 
Communication Systems, Human-Computer Interaction, 
and Software Engineering and Applied Computing. 
Among 145 submissions from 28 countries, 63 
papers were accepted for presentation at SoICT 2019. 
Among them, the following two papers were carefully 
selected, after further extension and additional reviews, 
for inclusion in this special issue.  
The first paper, “Privacy Preserving Visual Log 
Service with Temporal Interval Query using Interval 
Tree-based Searchable Symmetric Encryption” by Viet-
An Pham, Huy-Hoang Huy Chung-Nguyen, Dinh-Hieu 
Hoang, Mai-Khiem Tran, and Minh-Triet Tran 
developed a smart secure service for visual logs with a 
temporal interval query.  The proposed scheme achieves 
efficient search and update time while also maintaining 
all important security properties such as forward privacy, 
backward privacy, and it does not leak information 
outside the desired temporal range. 
The second paper, “Cycle Time Enhancement by 
Simulated Annealing for a Practical Assembly Line 
Balancing Problem” by Huong Mai Dinh, Dung Viet 
Nguyen, Long Van Truong, Thuan Phan Do, Thao Thanh 
Phan, and Nghia Duc Nguyen investigated the assembly 
line balancing problem. For this problem, they proposed 
a solution that takes the simulated annealing approach, 
which was proved to be effective and potentially 
applicable in practice. 
 
We hope that readers interested in Information and 
Communication Technology will find this Special Issue a 
useful collection of papers. 
 
 
Huynh Thi Thanh Binh 
Ichiro Ide 
  

114 Informatica 44 (2020) 113–113 H.T.T. Binh et al.