professional activities (last 5 years)



  2012
  organizer
  mdc: nokia mobile data challenge
  icmi: int. conf. on multimodal interaction, multimodal grand challenges
  mm: acm multimedia, open source software competition
  smane: www int. workshop on social media applications in news and entertainment

  associate editor
  tmm: ieee transactions on multimedia
  ivc: image and vision computing

  guest editor
  tmm: ieee trans. on multimedia, special issue on social media as sensors

  program committee member
  www: world wide web conference
  icwsm: aaai int. conf. on weblogs and social media
  iswc: ieee int. symposium on wearable computers
  mdm: ieee int. conf. on mobile data management
  mscss: acm mobisys workshop on mobile systems for computational social science
  ms-ipsn: acm/ieee ipsn workshop on mobile sensing: from smartphones and wearables to big data

  reviewer
  pervasive: int. conf. on pervasive computing
  chi: acm conf. on human factors in computing systems
  iui: int. conf. on intelligent user interfaces

  2011
  associate editor
  tmm: ieee transactions on multimedia
  jaise: journal of ambient intelligence and smart environments
  ivc: image and vision computing
  mva: machine vision and applications

  guest editor
  tmm: ieee trans. on multimedia, special issue on learning semantics from multimedia web resources

  organizer
  icmi: acm int. conf. on multimodal interaction, program co-chair
  sba: ieee int. workshop on social behavior analysis

  invited talks
  uiuc: the year of social media, public event series, univ. of illinois at urbana-champaign
  vision 2020: european commission think tank meeting, networked media vision 2020, brussels
  maw: telefonica multimedia analysis workshop, telefonica i+d, barcelona
  recpad: portuguese conference on pattern recognition, porto

  program committee member
  mm: acm int. conf. on multimedia, area chair on mobile multimedia
  icwsm: aaai int. conf. on weblogs and social media
  iccv: ieee int. conf. on computer vision
  aaai: aaai conf. on artificial intelligence, physically grounded AI track
  icmr: acm int. conf. on multimedia retrieval
  mdm: int. conf. on mobile data management
  mum: int. conf. on mobile and ubiquitous multimedia

  reviewer
  ubicomp: acm int. conf. on ubiquitous computing
  chi: acm conf. on human factors in computing systems

  2010
  associate editor
  tmm: ieee transactions on multimedia
  jaise: journal of ambient intelligence and smart environments
  ivc: image and vision computing
  mva: machine vision and applications

  organizer
  hcd: nips workshop on modeling human communication dynamics
  mm: acm multimedia panel, all things mobile
  mm: acm int. conf. on multimedia, demo chair

  invited talks and tutorials
  wsm: acm workshop on social media
  mm: acm multimedia, tutorial on modeling human behavior with mobile phones
  mlsp: ieee workshop on machine learning for signal processing
  plus: advanced school on social signal processing
  hcd: usc-utep-nsf workshop on predictive models of human communication dynamics
  aerfai: summer school on pattern recognition and machine learning in multimedia systems

  program committee member
  www: world wide web conference
  mm: acm int. conf. on multimedia
  eccv: european conf. on computer vision
  civr: acm int. conf. on image and video retrieval
  icme: ieee int. conf. on multimedia
  mir: acm int. conf. on multimedia information retrieval
  iui: int. conf. on intelligent user interfaces

  reviewer
  ubicomp: acm int. conf. on ubiquitous computing

  2009
  associate editor
  tmm: ieee transactions on multimedia
  jaise: journal of ambient intelligence and smart environments
  ivc: image and vision computing
  mva: machine vision and applications

  organizer
  icme: ieee int. conf. on multimedia and expo, vice chair
  icmi-mlmi: int. conf. on multimodal interfaces and machine learning for multimodal interaction, program co-chair
  civr: acm int. conf. on image and video retrieval, program co-chair
  mm: acm int. conf. on multimedia, short paper chair, human-centered multimedia track
  hbm: aaai spring symposium on human behavior modeling, panel on resources for research on large-scale behavior modeling

  invited talks
  msssc: workshop on multimodal sensor-based systems and mobile phones for social computing

  program committee member
  iccv: ieee int. conf. on computer vision
  hbm: aaai spring symposium on human behavior modeling

  2008
  associate editor
  t-mm: ieee transactions on multimedia

  invited participant
  dagstuhl: dagstuhl seminar on contextual and social media understanding and usage
  sigmm: acm strategic retreat on the future of multimedia
  fg: panelist, special session on multi-sensor hci for smart environments

  program committee member
  cvpr: ieee conf. on computer vision and pattern recognition
  mm: acm int. conf. on multimedia
  eccv: european conf. on computer vision
  fg: ieee int. conf. on automatic face and gesture recognition
  mlmi: workshop on machine learning for multimodal interaction
  cvpr4hb: ieee workshop on cvpr for human communicative behavior analysis