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Junsu Cho

Ph.D. Student,
Computer Science, POSTECH,
South Korea

Career Profile

I am Junsu Cho, a Ph.D. student in Data Intelligence Lab. advised by Prof. Hwanjo Yu, Department of Computer Science and Engineering, Pohang University of Science and Technology (POSTECH), South Korea. My research is focused on data mining, especially recommender systems. I am most interested in finding and solving problems that may exist when a recommender system is used in the real world.

Research Interests

  • Data Mining, User Modeling, Recommender System
    • Application: Recommender system, Learning to rank, Click-through-rate prediction, Rating prediction
  • Deep Learning
    • Application: Representation learning, Deep metric learning, Neural network architecture
  • Graph Representation Learning
    • Application: Graph neural network, Knowledge graph learning, Link prediction

    Education

    B.S. in Computer Science and Engineering

    Mar 2013 - Feb 2017
    POSTECH

    Ph.D. in Computer Science and Engineering

    Mar 2017 - Present
    Data Intelligence Lab. advised by Prof. Hwanjo Yu, POSTECH

    Publications

    Conferences
  • Dynamic Multi-Behavior Sequence Modeling for Next Item Recommendation
    • Junsu Cho, Dongmin Hyun, Dong won Lim, Hyeon jae Cheon, Hyoung iel Park, Hwanjo Yu
    AAAI Conference on Artificial Intelligence (AAAI), 2023
  • Unsupervised Proxy Selection for Session-based Recommender Systems
    • Junsu Cho, SeongKu Kang, Dongmin Hyun, Hwanjo Yu
    ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2021
    [pdf] [code]
  • Learning Heterogeneous Temporal Patterns of User Preference for Timely Recommendation
    • Junsu Cho, Dongmin Hyun, SeongKu Kang, Hwanjo Yu
    The Web Conference (WWW), 2021
    [pdf] [code]
  • Interest Sustainability-Aware Recommender Systems
    • Dongmin Hyun, Junsu Cho, Chanyoung Park, Hwanjo Yu
    IEEE International Conference on Data Mining (ICDM full), 2020
  • Building Large-Scale English and Korean Datasets for Aspect-Level Sentiment Analysis in Automotive Domain
    • Dongmin Hyun, Junsu Cho, Hwanjo Yu
    International Conference on Computational Linguistics (COLING), 2020
  • Sparse Network Inversion for Key Instance Detection in Multiple Instance
    • Beomjo Shin, Junsu Cho, Hwanjo Yu, Seungjin Choi
    International Conference on Pattern Recognition (ICPR), 2020
  • Beyond Learning from Next Item: Sequential Recommendation via Personalized Interest Sustainability
    • Dongmin Hyun, Chanyoung Park, Junsu Cho, Hwanjo Yu
    International Conference on Information & Knowledge Management (CIKM), 2022

    Journals
  • Learning to Utilize Auxiliary Reviews for Recommendation
    • Dongmin Hyun, Chanyoung Park, Junsu Cho, Hwanjo Yu
    Information Science, 2021.2 (IF: 5.524)

    Awards

    3rd Prize, Kakao Melon Playlist Continuation Competition

    2020
    Melon, Kakao

    Gold Prize (the 1st place), Best Paper Award

    2017
    Korean Database Conference (KDBC) 2017

    Outstanding Graduate

    2017
    POSTECH

    2nd Prize, POSTECH Heckathon

    2014
    POSTECH

    Watcha Prize, POSTECH Heckathon

    2014
    Watcha

    Experiences

    Internship

    Winter 2015
    Sk Hynix