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About this paper

Yifei Yuan, Clemencia Siro, Mohammad Aliannejadi, Maarten de Rijke, Wai Lam

Researchers developed Marto, a multimodal generative model that enhances conversational search by enabling systems to ask clarifying questions augmented with relevant images. This approach improved document retrieval performance by up to 90% and led to more detailed user responses, supported by the introduction of the large-scale Melon dataset.

Key insights

  • Incorporating images into clarifying questions significantly enhances document retrieval effectiveness and user response quality.
  • Intelligent classification of which questions benefit from images, and the selection of the single most relevant image, are crucial for optimal performance.
  • Generative retrieval models offer superior effectiveness and substantial efficiency gains compared to discriminative models in multimodal conversational search.

Summary by alphaXiv.

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