News


Apr. 2025
Our paper "Robust Relevance Feedback for Interactive Known-item Video Search" was accepted by ICMR 2025.

Feb. 2025
I joined SMU as a Research Scientist.

Jan. 2025
Our paper "Interactive Video Search with Multi-modal LLM Video Captioning" was accepted by MMM 2025.

Dec. 2024
I passed my Ph.D. dissertation defense.

July. 2023
I was selected as an award winner for the SMU Presidential Doctoral Fellowship and the School of Computing and Information Systems (SCIS) Dean’s List.

Aug. 2023
I passed my Ph.D. dissertation proposal defense.

Jan. 2023
We won the 3rd price in Video Browsing Showdown 2023.

Dec. 2022
Our paper "Reinforcement Learning Enhanced PicHunter for Interactive Search" was accepted by MMM 2023.

Oct. 2022
Our ACM MM 2022 paper won the Top Rated Paper Award. The reward was given to 13 papers out of 690 accepted submissions (1.88%). The best paper was recommended from this list.

June 2022
Our full paper "Interactive Video Corpus Moment Retrieval using Reinforcement Learning" was accepted by ACM Multimedia 2022 as an oral paper.

Nov. 2021
I passed the Ph.D. qualifying examination and officially became a Ph.D. candidate.

Oct. 2021
Our paper "Reinforcement Learning-Based Interactive Video Search" was accepted by MMM 2022.

June 2021
We won the third price in Video Browsing Showdown , 2021.

Oct. 2020
Our paper "SQL-like interpretable interactive video search" was accepted by MMM 2021.

Mar. 2020
I was admitted into Ph.D. in Computer Science programme as a full-time student commencing in Aug. 2020, Singapore Management University .

Zhixin Ma 

Research Scientist

Computer Science, SCIS
Singapore Management University

80 Stamford Road
Singapore 178902

zxma AT smu.edu.sg
CVGoogle ScholarGitHub

About Me


MA Zhixin is currently a Research Scientist at Singapore Management University. He earned his Ph.D. in Computer Science from Singapore Management University in 2024 and his Bachelor's degree from Shandong University in 2019. His research interests span multimedia computing and human-in-the-loop interactive systems. His current work focuses on interactive video retrieval and multimodal large language models.

Experiences

Research Scientist Jan. 2025 - present, Singapore
Singapore Management University
Research Assistant Jan. 2019 - July 2020, Singapore
National University of Singapore NExT++ Research Centre
Advisor: Dr. Wenqiang Lei and Prof. Tat-Seng Chua

Education

Singapore Management University Aug. 2020 - Dec. 2024, Singapore
Ph.D. in Computer Science
Advisor: Prof. Chong-Wah Ngo
Shandong University Sep. 2015 - Jun. 2019, Jinan & Qingdao, China
Bachelor in Computer Science and Technology
Advisor: Prof. Tian Gan and Prof. Liqiang Nie

Publications



pdf
Robust Relevance Feedback for Interactive Known-item Video Search
Zhixin Ma, Chong-Wah Ngo
15th ACM International Conference on Multimedia Retrieval, 2025

pdf
Leveraging LLMs and Generative Models for Interactive Known-Item Video Search
Zhixin Ma, Jiaxin Wu, Chong-Wah Ngo
30th International Conference on Multimedia Modeling, 2024

pdf
Interactive Video Retrieval in the Age of Effective Joint Embedding Deep Models
Jakub Lokoč, Stelios Andreadis, Werner Bailer, ..., Zhixin Ma, ..., Stefanos Vrochidis
Multimedia Systems, 2023

pdf
Reinforcement Learning Enhanced PicHunter for Interactive Search
Zhixin Ma, Jiaxin Wu, Weixiong Loo, Chong-Wah Ngo
29th International Conference on Multimedia Modeling, 2023

pdf
Interactive Video Corpus Moment Retrieval using Reinforcement Learning
Zhixin Ma, Chong-Wah Ngo
ACM MM 2022; Oral & Top Rated Paper Award: 13 out of 690 accepted papers (1.88%)

pdf
Reinforcement Learning-Based Interactive Video Search
Zhixin Ma, Jiaxin Wu, Zhijian Hou, Chong-Wah Ngo
28th International Conference on Multimedia Modeling, 2022

pdf
SQL-like interpretable interactive video search
Jiaxin Wu, Phuong Anh Nguyen, Zhixin Ma, Chong-Wah Ngo
27th International Conference on Multimedia Modeling, 2021

pdf
Re-examining the Role of Schema Linking Text-to-SQL
Wenqiang Lei, Weixin Wang, Zhixin Ma, Tian Gan, Wei Lu, Min-Yen Kan and Tat-Seng Chua
EMNLP 2020

pdf
Learn to Gesture: Let Your Body Speak
Tian Gan, Zhixin Ma, Yuxiao Lu, Xuemeng Song and Liqiang Nie
ACM MMAsia 2019

Community Services


  • Invited Reviewer for TMM, ToMM, TKDE, TCSVT, TWeb, TIST
  • Invited Reviewer for ACM Multimedia, ACL, EMNLP, NAACL, WWW
  • Program Committee Member of EMNLP 2023
  • Volunteer of ACM MM 2022, WWW 2024 (as photographer)
  • Invited Talk



    pdf
    Reinforcement Learning Enhanced Interactive Video Retrieval
    1 Feb. 2023 at NExT Research Centre, NUS

    Teaching Assistants


    IS446: Managing Customer Relations with Analytics: Asian Insights
    Term 1, AY2023-2024
    CS702: Computational Interaction
    Term 2, AY2022-2023
    CS601: Introduction to Artificial Intelligence
    Term 1, AY2021-2022

    Honors


    SMU Presidential Doctoral Fellowship , AY2023
    Dean’s List of School of Computing and Information Systems (SCIS), AY2023
    The 3rd price in Video Browsing Showdown (VBS), 2023
    ACM Multimedia Top Rated Paper Award, AY2022
    ACM Multimedia Student Travel Grant, AY2022
    The 3rd price in Video Browsing Showdown (VBS), 2021

    Last update: Feb. 2025.