2017

Neural Models for Information Retrieval

Mitra, Bhaskar, Craswell, Nick

Understand

Neural ranking models for information retrieval (IR) use shallow or deep neural networks to rank search results in response to a query.

  • Traditional learning to rank models employ machine learning techniques over hand-crafted IR features.
  • By contrast, neural models learn representations of language from raw text that can bridge the gap between query and document vocabulary.
  • Unlike classical IR models, these new machine learning based approaches are data-hungry, requiring large scale training data before they can be deployed.

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