Conference paper Open Access

ONLINE MULTI-TASK LEARNING FOR SEMANTIC CONCEPT DETECTION IN VIDEO

Foteini Markatopoulou; Vasileios Mezaris; Ioannis Patras


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{
  "DOI": "10.1109/ICIP.2016.7532344", 
  "author": [
    {
      "family": "Foteini Markatopoulou"
    }, 
    {
      "family": "Vasileios Mezaris"
    }, 
    {
      "family": "Ioannis Patras"
    }
  ], 
  "issued": {
    "date-parts": [
      [
        2016, 
        9, 
        25
      ]
    ]
  }, 
  "abstract": "<p>In this paper we propose an online multi-task learning algorithm for video concept detection. In particular, we extend the Efficient Lifelong Learning Algorithm (ELLA) in the following ways: a) we solve the objective function of ELLA using quadratic programming instead of solving the Lasso problem, b) we add a new label-based constraint that considers concept correlations, c) we use linear SVMs as base learners instead of logistic regression. Experimental results show improvement over both the single-task learning methods typically used in this problem and the original ELLA algorithm.</p>", 
  "title": "ONLINE MULTI-TASK LEARNING FOR SEMANTIC CONCEPT DETECTION IN VIDEO", 
  "type": "paper-conference", 
  "id": "159241"
}
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