Seminar: Recommendation Systems: Concepts, Techniques, and Applications (by S. Kim)



Recommendation Systems: Concepts, Techniques, and Applications

Dr. Sang-Wook Kim

Hanyang University, Seoul, Korea

Abstract: As the number of online items significantly grows, it becomes

a difficult task for users to find those items on their own. Good matching

of users to suitable items is critical to enhance user satisfaction, which

highlights the importance of recommendation systems. The recommendation

systems analyze users’ past behavioral characteristics, predicting the

items with which a user would be truly satisfied. The approaches to

recommendation systems are classified into two categories: content based

and collaborative filtering (CF) based approaches. In this talk, we discuss

the concepts, techniques, and applications of recommendation systems. We

start with the concepts of recommendation systems, and introduce a variety of

their applications. Next, we describe machine learning techniques

applied in developing recommendation systems. Finally, we share the

state-of-the-art techniques developed in our laboratory recently, and show their

effectiveness in terms of user satisfaction.


Sang-Wook Kim received his Ph.D. degree in Computer Science from Korea

Advanced Institute of Science and Technology (KAIST) at 1994. From 1995

to 2003, he served as an Associate Professor of the Division of Information

and Communications Engineering at Kangwon National University. In 2003, he

joined Hanyang University, Seoul, Korea, where he currently is a

Professor at the Department of Computer Science & Engineering and the director of

the Brain-Korea-21-Plus research program. He has also been leading a

National Research Lab Project from 2015. His research interests include

databases, data mining, social network analysis, recommendation, and web data


From 2009 to 2010, Dr. Kim visited Computer Science Department at

Carnegie Mellon University as a Visiting Professor. From 1999 to 2000, he worked

with the IBM T. J. Watson Research Center as a Post-Doc. He also visited the

Computer Science Department of Stanford University as a Visiting

Researcher in 1991. He is an author of over 120 papers in refereed international

journals and international conference proceedings. He served Program

Committees of over 100 international conferences including IEEE ICDE,

VLDB, WWW, and ACM CIKM. He is now an associate editor of two international

journals: Information Sciences and Computer Science & Information

Systems (ComSIS). He received the Presidential Award of Korea in 2017 for his

academic achievement and he is currently a member of National Academy of

Engineering of Korea from 2019. He is also a member of the ACM and the




Dr. Sang-Wook Kim

Date and Location

Date and Location