Eric Gaussier - Semantic annotation in the biomedical domain - large scale classification and BioASQ

Eric Gaussier (CUEF de Grenoble - Université Grenoble Alpes) about “Semantic annotation in the biomedical domain: large scale classification and BioASQ”

• Eric Gaussier
• Presentation file with similar content
• BioASQ Challenge (A challenge on large-scale biomedical semantic indexing and question answering)

Approaches for classification in large-scale taxonomies:

• Hierarchical
  • Top-down (e.g. “SVMs Classification with A Very Large-scale Taxonomy” [Liu et al., 2005], “Refined experts: improving classification in large taxonomies” [Bennett and Nguyen, 2009])
  • Big-bang (e.g. “Hierarchical document categorization with support vector machines” [Cai and Hofman , 2004], “Distribution-Calibrated Hierarchical Classification” [Dekel, 2009], “Bayesian models for large-scale hierarchical classification” [Gopal et al., 2012])
• Flat (e.g. “Label Embedding Trees for Large Multi-Class Tasks” [Bengio et al., 2010])
• Mildly hierarchical (e.g. “Improving Hierarchical SVMs by Hierarchy Flattening and Lazy Classification” [Malik, 2009])

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