Lexing Xie
Senior Lecturer / Fellow of Computer Science
The Australian National University.
I'm also affiliated with NICTA.
my firstname dot lastname at anu dot edu dot au
News
  • 2014-03 An opinion piece with Ayman Shamma and Cees Snoek - "Content is Dead ... Long Live Content: The New Age of Multimedia-Hard Problems" is recently published by IEEE Multimedia. We explore the possibility of describing multimedia problems with human-computation primitives, this work originated from a panel discussion at ACM Mulitmedia 2012.
  • 2014-03 Two papers accepted: "Diffrential topic models" to IEEE T-PAMI, and "Bilateral Correspondence Model for Words-and-Pictures Association in Multimedia-rich Microblogs" to ACM ToMM. These two papers designs and applies topic models for text and image data on the social web.
  • 2013-10 "Picture Tags and World Knowledge", our paper on learning tag relations from 5M Flickr images, is just presented at ACM Multimedia. Paper, slides, demo, and some data are here on the project page.
  • 2013-10 Slides available for my invited talk "Events and Meme Popularity in Social Media" at the event workshop at ACM MM in Barcelona.
  • ... older news is archived here.
    Research Overview
    My research focus broadly on innovative use and design of machine learning algorithms and systems, especially on spatial, temporal and multi-relational graph data. Several areas of recent work include:
  • Multimedia understanding and retrieval.
  • Social media tracking and modeling.
  • Machine learning and applications.
  • Details can be found from the sample projects below and the list of publications.
    Getting Involved
    I am always looking for curious and motivated strong students to collaborate on various fun projects. Frequently needed information about joining my research group is here.
    Selected Recent Projects
    Picture Tags and World Knowledge: Learning Tag Relations from Visual Semantic Sources
    Lexing Xie, Xuming He
    ACM Multimedia 2013, Oct 2013 (full paper)
    pdf| project page| slides
    Event Diffusion Patterns in Social Media (2012)
    Minkyoung Kim, Lexing Xie, Peter Christen
    Intl. Conf. on Weblogs and Social Media (ICWSM), 8 pages, Dublin, Ireland, June 2012
    abstract |pdf
    Visual Memes in Social Media: Tracking Real-world News in YouTube Videos (2011)
    Lexing Xie, Apostol Natsev, Matthew Hill, John Kender, John R Smith
    ACM Multimedia 2011 and ICWSM 2011
    project page |TMM'13 paper |MM'11 paper
    ImageHive: Interactive Content-Aware Image Summarization (2012)
    Li Tan, Yangqiu Song, Shixia Liu, Lexing Xie,
    IEEE Computer Graphics and Applications, pp. 46-55, January/February, 2012
    abstract |pdf
    Probabilistic Visual Concept Trees (2010)
    Lexing Xie, Rong Yan, Jelena Tešić, Apostol Natsev, John R Smith
    ACM Multimedia 2010, pp. 867-870
    abstract |pdf